diff --git a/src/addon/calendar/calendar.module.ts b/src/addon/calendar/calendar.module.ts
index fefb0c635..0866ee171 100644
--- a/src/addon/calendar/calendar.module.ts
+++ b/src/addon/calendar/calendar.module.ts
@@ -20,6 +20,7 @@ import { CoreMainMenuDelegate } from '@core/mainmenu/providers/delegate';
 import { CoreInitDelegate } from '@providers/init';
 import { CoreLocalNotificationsProvider } from '@providers/local-notifications';
 import { CoreLoginHelperProvider } from '@core/login/providers/helper';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_CALENDAR_PROVIDERS: any[] = [
@@ -39,7 +40,7 @@ export const ADDON_CALENDAR_PROVIDERS: any[] = [
 export class AddonCalendarModule {
     constructor(mainMenuDelegate: CoreMainMenuDelegate, calendarHandler: AddonCalendarMainMenuHandler,
             initDelegate: CoreInitDelegate, calendarProvider: AddonCalendarProvider, loginHelper: CoreLoginHelperProvider,
-            localNotificationsProvider: CoreLocalNotificationsProvider) {
+            localNotificationsProvider: CoreLocalNotificationsProvider, updateManager: CoreUpdateManagerProvider) {
         mainMenuDelegate.registerHandler(calendarHandler);
 
         initDelegate.ready().then(() => {
@@ -60,5 +61,15 @@ export class AddonCalendarModule {
                 });
             }
         });
+
+        // Allow migrating the table from the old app to the new schema.
+        // In the old app some calculated properties were stored when it shouldn't. Filter only the fields we want.
+        updateManager.registerSiteTableMigration({
+            name: 'calendar_events',
+            newName: AddonCalendarProvider.EVENTS_TABLE,
+            filterFields: ['id', 'name', 'description', 'format', 'eventtype', 'courseid', 'timestart', 'timeduration',
+                    'categoryid', 'groupid', 'userid', 'instance', 'modulename', 'timemodified', 'repeatid', 'visible', 'uuid',
+                    'sequence', 'subscriptionid', 'notificationtime']
+        });
     }
 }
diff --git a/src/addon/calendar/providers/calendar.ts b/src/addon/calendar/providers/calendar.ts
index 210923dae..226fde369 100644
--- a/src/addon/calendar/providers/calendar.ts
+++ b/src/addon/calendar/providers/calendar.ts
@@ -36,10 +36,10 @@ export class AddonCalendarProvider {
     protected DEFAULT_NOTIFICATION_TIME = 60;
 
     // Variables for database.
-    protected EVENTS_TABLE = 'calendar_events';
+    static EVENTS_TABLE = 'addon_calendar_events';
     protected tablesSchema = [
         {
-            name: this.EVENTS_TABLE,
+            name: AddonCalendarProvider.EVENTS_TABLE,
             columns: [
                 {
                     name: 'id',
@@ -59,6 +59,10 @@ export class AddonCalendarProvider {
                     name: 'description',
                     type: 'TEXT'
                 },
+                {
+                    name: 'format',
+                    type: 'INTEGER'
+                },
                 {
                     name: 'eventtype',
                     type: 'TEXT'
@@ -83,6 +87,10 @@ export class AddonCalendarProvider {
                     name: 'groupid',
                     type: 'INTEGER'
                 },
+                {
+                    name: 'userid',
+                    type: 'INTEGER'
+                },
                 {
                     name: 'instance',
                     type: 'INTEGER'
@@ -98,6 +106,22 @@ export class AddonCalendarProvider {
                 {
                     name: 'repeatid',
                     type: 'INTEGER'
+                },
+                {
+                    name: 'visible',
+                    type: 'INTEGER'
+                },
+                {
+                    name: 'uuid',
+                    type: 'TEXT'
+                },
+                {
+                    name: 'sequence',
+                    type: 'INTEGER'
+                },
+                {
+                    name: 'subscriptionid',
+                    type: 'INTEGER'
                 }
             ]
         }
@@ -181,7 +205,7 @@ export class AddonCalendarProvider {
      */
     getEventFromLocalDb(id: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.EVENTS_TABLE, { id: id });
+            return site.getDb().getRecord(AddonCalendarProvider.EVENTS_TABLE, { id: id });
         });
     }
 
@@ -286,7 +310,7 @@ export class AddonCalendarProvider {
      * @return {string} Prefix Cache key.
      */
     protected getEventsListPrefixCacheKey(): string {
-        return this.ROOT_CACHE_KEY + 'eventslist:';
+        return this.ROOT_CACHE_KEY + 'events:';
     }
 
     /**
@@ -501,20 +525,26 @@ export class AddonCalendarProvider {
                         id: event.id,
                         name: event.name,
                         description: event.description,
+                        format: event.format,
                         eventtype: event.eventtype,
                         courseid: event.courseid,
                         timestart: event.timestart,
                         timeduration: event.timeduration,
                         categoryid: event.categoryid,
                         groupid: event.groupid,
+                        userid: event.userid,
                         instance: event.instance,
                         modulename: event.modulename,
                         timemodified: event.timemodified,
                         repeatid: event.repeatid,
+                        visible: event.visible,
+                        uuid: event.uuid,
+                        sequence: event.sequence,
+                        subscriptionid: event.subscriptionid,
                         notificationtime: e.notificationtime || -1
                     };
 
-                    return db.insertRecord(this.EVENTS_TABLE, eventRecord);
+                    return db.insertRecord(AddonCalendarProvider.EVENTS_TABLE, eventRecord);
                 }));
             });
 
@@ -539,7 +569,7 @@ export class AddonCalendarProvider {
 
             event.notificationtime = time;
 
-            return site.getDb().insertRecord(this.EVENTS_TABLE, event).then(() => {
+            return site.getDb().insertRecord(AddonCalendarProvider.EVENTS_TABLE, event).then(() => {
                 return this.scheduleEventNotification(event, time);
             });
         });
diff --git a/src/addon/messages/messages.module.ts b/src/addon/messages/messages.module.ts
index 1517905ba..0a202a894 100644
--- a/src/addon/messages/messages.module.ts
+++ b/src/addon/messages/messages.module.ts
@@ -36,6 +36,7 @@ import { CoreSettingsDelegate } from '@core/settings/providers/delegate';
 import { AddonMessagesSettingsHandler } from './providers/settings-handler';
 import { AddonPushNotificationsDelegate } from '@addon/pushnotifications/providers/delegate';
 import { CoreUtilsProvider } from '@providers/utils/utils';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MESSAGES_PROVIDERS: any[] = [
@@ -67,7 +68,7 @@ export class AddonMessagesModule {
             userDelegate: CoreUserDelegate, cronDelegate: CoreCronDelegate, syncHandler: AddonMessagesSyncCronHandler,
             network: Network, messagesSync: AddonMessagesSyncProvider, appProvider: CoreAppProvider,
             localNotifications: CoreLocalNotificationsProvider, messagesProvider: AddonMessagesProvider,
-            sitesProvider: CoreSitesProvider, linkHelper: CoreContentLinksHelperProvider,
+            sitesProvider: CoreSitesProvider, linkHelper: CoreContentLinksHelperProvider, updateManager: CoreUpdateManagerProvider,
             settingsHandler: AddonMessagesSettingsHandler, settingsDelegate: CoreSettingsDelegate,
             pushNotificationsDelegate: AddonPushNotificationsDelegate, utils: CoreUtilsProvider,
             addContactHandler: AddonMessagesAddContactUserHandler, blockContactHandler: AddonMessagesBlockContactUserHandler) {
@@ -115,5 +116,17 @@ export class AddonMessagesModule {
                 return true;
             }
         });
+
+        // Allow migrating the table from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_messages_offline_messages',
+            newName: AddonMessagesOfflineProvider.MESSAGES_TABLE,
+            fields: [
+                {
+                    name: 'textformat',
+                    delete: true
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/messages/providers/messages-offline.ts b/src/addon/messages/providers/messages-offline.ts
index a2243f6b9..5bf12837c 100644
--- a/src/addon/messages/providers/messages-offline.ts
+++ b/src/addon/messages/providers/messages-offline.ts
@@ -26,10 +26,10 @@ export class AddonMessagesOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected MESSAGES_TABLE = 'addon_messages_offline_messages';
+    static MESSAGES_TABLE = 'addon_messages_offline_messages';
     protected tablesSchema = [
         {
-            name: this.MESSAGES_TABLE,
+            name: AddonMessagesOfflineProvider.MESSAGES_TABLE,
             columns: [
                 {
                     name: 'touserid',
@@ -72,7 +72,7 @@ export class AddonMessagesOfflineProvider {
      */
     deleteMessage(toUserId: number, message: string, timeCreated: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.MESSAGES_TABLE, {
+            return site.getDb().deleteRecords(AddonMessagesOfflineProvider.MESSAGES_TABLE, {
                     touserid: toUserId,
                     smallmessage: message,
                     timecreated: timeCreated
@@ -88,7 +88,7 @@ export class AddonMessagesOfflineProvider {
      */
     getAllDeviceOfflineMessages(siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.MESSAGES_TABLE, {deviceoffline: 1});
+            return site.getDb().getRecords(AddonMessagesOfflineProvider.MESSAGES_TABLE, {deviceoffline: 1});
         });
     }
 
@@ -101,7 +101,7 @@ export class AddonMessagesOfflineProvider {
      */
     getMessages(toUserId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.MESSAGES_TABLE, {touserid: toUserId});
+            return site.getDb().getRecords(AddonMessagesOfflineProvider.MESSAGES_TABLE, {touserid: toUserId});
         });
     }
 
@@ -113,7 +113,7 @@ export class AddonMessagesOfflineProvider {
      */
     getAllMessages(siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getAllRecords(this.MESSAGES_TABLE);
+            return site.getDb().getAllRecords(AddonMessagesOfflineProvider.MESSAGES_TABLE);
         });
     }
 
@@ -148,7 +148,7 @@ export class AddonMessagesOfflineProvider {
                 deviceoffline: this.appProvider.isOnline() ? 0 : 1
             };
 
-            return site.getDb().insertRecord(this.MESSAGES_TABLE, entry).then(() => {
+            return site.getDb().insertRecord(AddonMessagesOfflineProvider.MESSAGES_TABLE, entry).then(() => {
                 return entry;
             });
         });
@@ -169,7 +169,7 @@ export class AddonMessagesOfflineProvider {
                 data = { deviceoffline: value ? 1 : 0 };
 
             messages.forEach((message) => {
-                promises.push(db.insertRecord(this.MESSAGES_TABLE, data));
+                promises.push(db.insertRecord(AddonMessagesOfflineProvider.MESSAGES_TABLE, data));
             });
 
             return Promise.all(promises);
diff --git a/src/addon/mod/assign/assign.module.ts b/src/addon/mod/assign/assign.module.ts
index 961dd18b5..5a8045af7 100644
--- a/src/addon/mod/assign/assign.module.ts
+++ b/src/addon/mod/assign/assign.module.ts
@@ -29,6 +29,7 @@ import { AddonModAssignPrefetchHandler } from './providers/prefetch-handler';
 import { AddonModAssignSyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModAssignSubmissionModule } from './submission/submission.module';
 import { AddonModAssignFeedbackModule } from './feedback/feedback.module';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_ASSIGN_PROVIDERS: any[] = [
@@ -58,9 +59,61 @@ export const ADDON_MOD_ASSIGN_PROVIDERS: any[] = [
 export class AddonModAssignModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModAssignModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModAssignPrefetchHandler,
-            cronDelegate: CoreCronDelegate, syncHandler: AddonModAssignSyncCronHandler) {
+            cronDelegate: CoreCronDelegate, syncHandler: AddonModAssignSyncCronHandler, updateManager: CoreUpdateManagerProvider) {
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
         cronDelegate.register(syncHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTablesMigration([
+            {
+                name: 'mma_mod_assign_submissions',
+                newName: AddonModAssignOfflineProvider.SUBMISSIONS_TABLE,
+                fields: [
+                    {
+                        name: 'assignmentid',
+                        newName: 'assignid'
+                    },
+                    {
+                        name: 'submitted',
+                        type: 'boolean'
+                    },
+                    {
+                        name: 'submissionstatement',
+                        type: 'boolean'
+                    },
+                    {
+                        name: 'plugindata',
+                        type: 'object'
+                    }
+                ]
+            },
+            {
+                name: 'mma_mod_assign_submissions_grading',
+                newName: AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE,
+                fields: [
+                    {
+                        name: 'assignmentid',
+                        newName: 'assignid'
+                    },
+                    {
+                        name: 'addattempt',
+                        type: 'boolean'
+                    },
+                    {
+                        name: 'applytoall',
+                        type: 'boolean'
+                    },
+                    {
+                        name: 'outcomes',
+                        type: 'object'
+                    },
+                    {
+                        name: 'plugindata',
+                        type: 'object'
+                    }
+                ]
+            }
+        ]);
     }
 }
diff --git a/src/addon/mod/assign/components/submission/submission.ts b/src/addon/mod/assign/components/submission/submission.ts
index 89a9d34c1..f24ebfb12 100644
--- a/src/addon/mod/assign/components/submission/submission.ts
+++ b/src/addon/mod/assign/components/submission/submission.ts
@@ -384,7 +384,7 @@ export class AddonModAssignSubmissionComponent implements OnInit, OnDestroy {
 
             // Check if there's any offline data for this submission.
             promises.push(this.assignOfflineProvider.getSubmission(assign.id, this.submitId).then((data) => {
-                this.hasOffline = data && data.pluginData && Object.keys(data.pluginData).length > 0;
+                this.hasOffline = data && data.plugindata && Object.keys(data.plugindata).length > 0;
                 this.submittedOffline = data && data.submitted;
             }).catch(() => {
                 // No offline data found.
@@ -561,8 +561,8 @@ export class AddonModAssignSubmissionComponent implements OnInit, OnDestroy {
                             this.originalGrades.grade = this.grade.grade;
                         }
 
-                        this.grade.applyToAll = data.applyToAll;
-                        this.grade.addAttempt = data.addAttempt;
+                        this.grade.applyToAll = data.applytoall;
+                        this.grade.addAttempt = data.addattempt;
                         this.originalGrades.applyToAll = this.grade.applyToAll;
                         this.originalGrades.addAttempt = this.grade.addAttempt;
 
diff --git a/src/addon/mod/assign/feedback/comments/component/comments.ts b/src/addon/mod/assign/feedback/comments/component/comments.ts
index 0460e0c81..5c821ce09 100644
--- a/src/addon/mod/assign/feedback/comments/component/comments.ts
+++ b/src/addon/mod/assign/feedback/comments/component/comments.ts
@@ -128,13 +128,13 @@ export class AddonModAssignFeedbackCommentsComponent extends AddonModAssignFeedb
                 return this.assignOfflineProvider.getSubmissionGrade(this.assign.id, this.userId).catch(() => {
                     // No offline data found.
                 }).then((offlineData) => {
-                    if (offlineData && offlineData.pluginData && offlineData.pluginData.assignfeedbackcomments_editor) {
+                    if (offlineData && offlineData.plugindata && offlineData.plugindata.assignfeedbackcomments_editor) {
                         // Save offline as draft.
                         this.isSent = false;
                         this.feedbackDelegate.saveFeedbackDraft(this.assign.id, this.userId, this.plugin,
-                                offlineData.pluginData.assignfeedbackcomments_editor);
+                                offlineData.plugindata.assignfeedbackcomments_editor);
 
-                        return offlineData.pluginData.assignfeedbackcomments_editor.text;
+                        return offlineData.plugindata.assignfeedbackcomments_editor.text;
                     }
 
                     // No offline data found, return online text.
diff --git a/src/addon/mod/assign/feedback/comments/providers/handler.ts b/src/addon/mod/assign/feedback/comments/providers/handler.ts
index 3b2804a3e..713167bc0 100644
--- a/src/addon/mod/assign/feedback/comments/providers/handler.ts
+++ b/src/addon/mod/assign/feedback/comments/providers/handler.ts
@@ -128,8 +128,8 @@ export class AddonModAssignFeedbackCommentsHandler implements AddonModAssignFeed
         return this.assignOfflineProvider.getSubmissionGrade(assign.id, userId).catch(() => {
             // No offline data found.
         }).then((data) => {
-            if (data && data.pluginData && data.pluginData.assignfeedbackcomments_editor) {
-                return data.pluginData.assignfeedbackcomments_editor.text;
+            if (data && data.plugindata && data.plugindata.assignfeedbackcomments_editor) {
+                return data.plugindata.assignfeedbackcomments_editor.text;
             }
 
             // No offline data found, get text from plugin.
diff --git a/src/addon/mod/assign/pages/edit/edit.ts b/src/addon/mod/assign/pages/edit/edit.ts
index 21ca6e70a..e98d6abf0 100644
--- a/src/addon/mod/assign/pages/edit/edit.ts
+++ b/src/addon/mod/assign/pages/edit/edit.ts
@@ -156,7 +156,7 @@ export class AddonModAssignEditPage implements OnInit, OnDestroy {
 
                 // Check if there's any offline data for this submission.
                 return this.assignOfflineProvider.getSubmission(this.assign.id, this.userId).then((data) => {
-                    this.hasOffline = data && data.pluginData && Object.keys(data.pluginData).length > 0;
+                    this.hasOffline = data && data.plugindata && Object.keys(data.plugindata).length > 0;
                 }).catch(() => {
                     // No offline data found.
                     this.hasOffline = false;
diff --git a/src/addon/mod/assign/providers/assign-offline.ts b/src/addon/mod/assign/providers/assign-offline.ts
index c79a4aa30..6c54503b7 100644
--- a/src/addon/mod/assign/providers/assign-offline.ts
+++ b/src/addon/mod/assign/providers/assign-offline.ts
@@ -28,30 +28,30 @@ export class AddonModAssignOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected SUBMISSIONS_TABLE = 'addon_mod_assign_submissions';
-    protected SUBMISSIONS_GRADES_TABLE = 'addon_mod_assign_submissions_grading';
+    static SUBMISSIONS_TABLE = 'addon_mod_assign_submissions';
+    static SUBMISSIONS_GRADES_TABLE = 'addon_mod_assign_submissions_grading';
     protected tablesSchema = [
         {
-            name: this.SUBMISSIONS_TABLE,
+            name: AddonModAssignOfflineProvider.SUBMISSIONS_TABLE,
             columns: [
                 {
-                    name: 'assignId',
+                    name: 'assignid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'courseId',
+                    name: 'courseid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'userId',
+                    name: 'userid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'pluginData',
+                    name: 'plugindata',
                     type: 'TEXT'
                 },
                 {
-                    name: 'onlineTimemodified',
+                    name: 'onlinetimemodified',
                     type: 'INTEGER'
                 },
                 {
@@ -67,25 +67,25 @@ export class AddonModAssignOfflineProvider {
                     type: 'INTEGER'
                 },
                 {
-                    name: 'submissionStatement',
+                    name: 'submissionstatement',
                     type: 'INTEGER'
                 }
             ],
-            primaryKeys: ['assignId', 'userId']
+            primaryKeys: ['assignid', 'userid']
         },
         {
-            name: this.SUBMISSIONS_GRADES_TABLE,
+            name: AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE,
             columns: [
                 {
-                    name: 'assignId',
+                    name: 'assignid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'courseId',
+                    name: 'courseid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'userId',
+                    name: 'userid',
                     type: 'INTEGER'
                 },
                 {
@@ -93,19 +93,19 @@ export class AddonModAssignOfflineProvider {
                     type: 'REAL'
                 },
                 {
-                    name: 'attemptNumber',
+                    name: 'attemptnumber',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'addAttempt',
+                    name: 'addattempt',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'workflowState',
+                    name: 'workflowstate',
                     type: 'TEXT'
                 },
                 {
-                    name: 'applyToAll',
+                    name: 'applytoall',
                     type: 'INTEGER'
                 },
                 {
@@ -113,7 +113,7 @@ export class AddonModAssignOfflineProvider {
                     type: 'TEXT'
                 },
                 {
-                    name: 'pluginData',
+                    name: 'plugindata',
                     type: 'TEXT'
                 },
                 {
@@ -121,7 +121,7 @@ export class AddonModAssignOfflineProvider {
                     type: 'INTEGER'
                 }
             ],
-            primaryKeys: ['assignId', 'userId']
+            primaryKeys: ['assignid', 'userid']
         }
     ];
 
@@ -143,7 +143,8 @@ export class AddonModAssignOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().deleteRecords(this.SUBMISSIONS_TABLE, {assignId, userId});
+            return site.getDb().deleteRecords(AddonModAssignOfflineProvider.SUBMISSIONS_TABLE,
+                    {assignid: assignId, userid: userId});
         });
     }
 
@@ -159,7 +160,8 @@ export class AddonModAssignOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().deleteRecords(this.SUBMISSIONS_GRADES_TABLE, {assignId, userId});
+            return site.getDb().deleteRecords(AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE,
+                    {assignid: assignId, userid: userId});
         });
     }
 
@@ -181,7 +183,7 @@ export class AddonModAssignOfflineProvider {
 
             // Get assign id.
             results = results.map((object) => {
-                return object.assignId;
+                return object.assignid;
             });
 
             // Get unique values.
@@ -201,12 +203,12 @@ export class AddonModAssignOfflineProvider {
      */
     protected getAllSubmissions(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getAllRecords(this.SUBMISSIONS_TABLE);
+            return db.getAllRecords(AddonModAssignOfflineProvider.SUBMISSIONS_TABLE);
         }).then((submissions) => {
 
             // Parse the plugin data.
             submissions.forEach((submission) => {
-                submission.pluginData = this.textUtils.parseJSON(submission.pluginData, {});
+                submission.plugindata = this.textUtils.parseJSON(submission.plugindata, {});
             });
 
             return submissions;
@@ -221,13 +223,13 @@ export class AddonModAssignOfflineProvider {
      */
     protected getAllSubmissionsGrade(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getAllRecords(this.SUBMISSIONS_GRADES_TABLE);
+            return db.getAllRecords(AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE);
         }).then((submissions) => {
 
             // Parse the plugin data and outcomes.
             submissions.forEach((submission) => {
                 submission.outcomes = this.textUtils.parseJSON(submission.outcomes, {});
-                submission.pluginData = this.textUtils.parseJSON(submission.pluginData, {});
+                submission.plugindata = this.textUtils.parseJSON(submission.plugindata, {});
             });
 
             return submissions;
@@ -243,12 +245,12 @@ export class AddonModAssignOfflineProvider {
      */
     getAssignSubmissions(assignId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getRecords(this.SUBMISSIONS_TABLE, {assignId});
+            return db.getRecords(AddonModAssignOfflineProvider.SUBMISSIONS_TABLE, {assignid: assignId});
         }).then((submissions) => {
 
             // Parse the plugin data.
             submissions.forEach((submission) => {
-                submission.pluginData = this.textUtils.parseJSON(submission.pluginData, {});
+                submission.plugindata = this.textUtils.parseJSON(submission.plugindata, {});
             });
 
             return submissions;
@@ -264,13 +266,13 @@ export class AddonModAssignOfflineProvider {
      */
     getAssignSubmissionsGrade(assignId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getRecords(this.SUBMISSIONS_GRADES_TABLE, {assignId});
+            return db.getRecords(AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE, {assignid: assignId});
         }).then((submissions) => {
 
             // Parse the plugin data and outcomes.
             submissions.forEach((submission) => {
                 submission.outcomes = this.textUtils.parseJSON(submission.outcomes, {});
-                submission.pluginData = this.textUtils.parseJSON(submission.pluginData, {});
+                submission.plugindata = this.textUtils.parseJSON(submission.plugindata, {});
             });
 
             return submissions;
@@ -289,11 +291,11 @@ export class AddonModAssignOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecord(this.SUBMISSIONS_TABLE, {assignId, userId});
+            return site.getDb().getRecord(AddonModAssignOfflineProvider.SUBMISSIONS_TABLE, {assignid: assignId, userid: userId});
         }).then((submission) => {
 
             // Parse the plugin data.
-            submission.pluginData = this.textUtils.parseJSON(submission.pluginData, {});
+            submission.plugindata = this.textUtils.parseJSON(submission.plugindata, {});
 
             return submission;
         });
@@ -331,12 +333,13 @@ export class AddonModAssignOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecord(this.SUBMISSIONS_GRADES_TABLE, {assignId, userId});
+            return site.getDb().getRecord(AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE,
+                    {assignid: assignId, userid: userId});
         }).then((submission) => {
 
             // Parse the plugin data and outcomes.
             submission.outcomes = this.textUtils.parseJSON(submission.outcomes, {});
-            submission.pluginData = this.textUtils.parseJSON(submission.pluginData, {});
+            submission.plugindata = this.textUtils.parseJSON(submission.plugindata, {});
 
             return submission;
         });
@@ -410,20 +413,20 @@ export class AddonModAssignOfflineProvider {
                 const now = this.timeUtils.timestamp();
 
                 return {
-                    assignId: assignId,
-                    courseId: courseId,
-                    userId: userId,
-                    onlineTimemodified: timemodified,
+                    assignid: assignId,
+                    courseid: courseId,
+                    userid: userId,
+                    onlinetimemodified: timemodified,
                     timecreated: now,
                     timemodified: now
                 };
             }).then((submission) => {
                 // Mark the submission.
                 submission.submitted = submitted ? 1 : 0;
-                submission.submissionStatement = acceptStatement ? 1 : 0;
-                submission.pluginData = submission.pluginData ? JSON.stringify(submission.pluginData) : '{}';
+                submission.submissionstatement = acceptStatement ? 1 : 0;
+                submission.plugindata = submission.plugindata ? JSON.stringify(submission.plugindata) : '{}';
 
-                return site.getDb().insertRecord(this.SUBMISSIONS_TABLE, submission);
+                return site.getDb().insertRecord(AddonModAssignOfflineProvider.SUBMISSIONS_TABLE, submission);
             });
         });
     }
@@ -448,17 +451,17 @@ export class AddonModAssignOfflineProvider {
 
             const now = this.timeUtils.timestamp(),
                 entry = {
-                    assignId: assignId,
-                    courseId: courseId,
-                    pluginData: pluginData ? JSON.stringify(pluginData) : '{}',
-                    userId: userId,
+                    assignid: assignId,
+                    courseid: courseId,
+                    plugindata: pluginData ? JSON.stringify(pluginData) : '{}',
+                    userid: userId,
                     submitted: submitted ? 1 : 0,
                     timecreated: now,
                     timemodified: now,
-                    onlineTimemodified: timemodified
+                    onlinetimemodified: timemodified
                 };
 
-            return site.getDb().insertRecord(this.SUBMISSIONS_TABLE, entry);
+            return site.getDb().insertRecord(AddonModAssignOfflineProvider.SUBMISSIONS_TABLE, entry);
         });
     }
 
@@ -484,20 +487,20 @@ export class AddonModAssignOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             const now = this.timeUtils.timestamp(),
                 entry = {
-                    assignId: assignId,
-                    userId: userId,
-                    courseId: courseId,
+                    assignid: assignId,
+                    userid: userId,
+                    courseid: courseId,
                     grade: grade,
-                    attemptNumber: attemptNumber,
-                    addAttempt: addAttempt ? 1 : 0,
-                    workflowState: workflowState,
-                    applyToAll: applyToAll ? 1 : 0,
+                    attemptnumber: attemptNumber,
+                    addattempt: addAttempt ? 1 : 0,
+                    workflowstate: workflowState,
+                    applytoall: applyToAll ? 1 : 0,
                     outcomes: outcomes ? JSON.stringify(outcomes) : '{}',
-                    pluginData: pluginData ? JSON.stringify(pluginData) : '{}',
+                    plugindata: pluginData ? JSON.stringify(pluginData) : '{}',
                     timemodified: now
                 };
 
-            return site.getDb().insertRecord(this.SUBMISSIONS_GRADES_TABLE, entry);
+            return site.getDb().insertRecord(AddonModAssignOfflineProvider.SUBMISSIONS_GRADES_TABLE, entry);
         });
     }
 }
diff --git a/src/addon/mod/assign/providers/assign-sync.ts b/src/addon/mod/assign/providers/assign-sync.ts
index 69aa22a6e..a2576b465 100644
--- a/src/addon/mod/assign/providers/assign-sync.ts
+++ b/src/addon/mod/assign/providers/assign-sync.ts
@@ -213,7 +213,7 @@ export class AddonModAssignSyncProvider extends CoreSyncBaseProvider {
                 return Promise.reject(null);
             }
 
-            courseId = submissions.length > 0 ? submissions[0].courseId : grades[0].courseId;
+            courseId = submissions.length > 0 ? submissions[0].courseid : grades[0].courseid;
 
             return this.assignProvider.getAssignmentById(courseId, assignId, siteId).then((assignData) => {
                 assign = assignData;
@@ -264,7 +264,7 @@ export class AddonModAssignSyncProvider extends CoreSyncBaseProvider {
      * @return {Promise<any>} Promise resolved if success, rejected otherwise.
      */
     protected syncSubmission(assign: any, offlineData: any, warnings: string[], siteId?: string): Promise<any> {
-        const userId = offlineData.userId,
+        const userId = offlineData.userid,
             pluginData = {};
         let discardError,
             submission;
@@ -274,7 +274,7 @@ export class AddonModAssignSyncProvider extends CoreSyncBaseProvider {
 
             submission = this.assignProvider.getSubmissionObjectFromAttempt(assign, status.lastattempt);
 
-            if (submission.timemodified != offlineData.onlineTimemodified) {
+            if (submission.timemodified != offlineData.onlinetimemodified) {
                 // The submission was modified in Moodle, discard the submission.
                 discardError = this.translate.instant('addon.mod_assign.warningsubmissionmodified');
 
@@ -300,7 +300,7 @@ export class AddonModAssignSyncProvider extends CoreSyncBaseProvider {
                 return promise.then(() => {
                     if (assign.submissiondrafts && offlineData.submitted) {
                         // The user submitted the assign manually. Submit it for grading.
-                        return this.assignProvider.submitForGradingOnline(assign.id, offlineData.submissionStatement, siteId);
+                        return this.assignProvider.submitForGradingOnline(assign.id, offlineData.submissionstatement, siteId);
                     }
                 }).then(() => {
                     // Submission data sent, update cached data. No need to block the user for this.
@@ -355,7 +355,7 @@ export class AddonModAssignSyncProvider extends CoreSyncBaseProvider {
     protected syncSubmissionGrade(assign: any, offlineData: any, warnings: string[], courseId: number, siteId?: string)
             : Promise<any> {
 
-        const userId = offlineData.userId;
+        const userId = offlineData.userid;
         let discardError;
 
         return this.assignProvider.getSubmissionStatus(assign.id, userId, false, true, true, siteId).then((status) => {
@@ -394,9 +394,9 @@ export class AddonModAssignSyncProvider extends CoreSyncBaseProvider {
                 });
             }).then(() => {
                 // Now submit the grade.
-                return this.assignProvider.submitGradingFormOnline(assign.id, userId, offlineData.grade, offlineData.attemptNumber,
-                        offlineData.addAttempt, offlineData.workflowState, offlineData.applyToAll, offlineData.outcomes,
-                        offlineData.pluginData, siteId).then(() => {
+                return this.assignProvider.submitGradingFormOnline(assign.id, userId, offlineData.grade, offlineData.attemptnumber,
+                        offlineData.addattempt, offlineData.workflowstate, offlineData.applytoall, offlineData.outcomes,
+                        offlineData.plugindata, siteId).then(() => {
 
                     // Grades sent, update cached data. No need to block the user for this.
                     this.assignProvider.getSubmissionStatus(assign.id, userId, false, true, true, siteId);
diff --git a/src/addon/mod/assign/submission/file/component/file.ts b/src/addon/mod/assign/submission/file/component/file.ts
index ed14b8240..a25ac1bbb 100644
--- a/src/addon/mod/assign/submission/file/component/file.ts
+++ b/src/addon/mod/assign/submission/file/component/file.ts
@@ -47,10 +47,10 @@ export class AddonModAssignSubmissionFileComponent extends AddonModAssignSubmiss
         this.assignOfflineProvider.getSubmission(this.assign.id).catch(() => {
             // Error getting data, assume there's no offline submission.
         }).then((offlineData) => {
-            if (offlineData && offlineData.pluginData && offlineData.pluginData.files_filemanager) {
+            if (offlineData && offlineData.plugindata && offlineData.plugindata.files_filemanager) {
                 // It has offline data.
                 let promise;
-                if (offlineData.pluginData.files_filemanager.offline) {
+                if (offlineData.plugindata.files_filemanager.offline) {
                     promise = this.assignHelper.getStoredSubmissionFiles(this.assign.id,
                             AddonModAssignSubmissionFileHandler.FOLDER_NAME);
                 } else {
@@ -58,7 +58,7 @@ export class AddonModAssignSubmissionFileComponent extends AddonModAssignSubmiss
                 }
 
                 return promise.then((offlineFiles) => {
-                    const onlineFiles = offlineData.pluginData.files_filemanager.online || [];
+                    const onlineFiles = offlineData.plugindata.files_filemanager.online || [];
                     offlineFiles = this.fileUploaderProvider.markOfflineFiles(offlineFiles);
 
                     this.files = onlineFiles.concat(offlineFiles);
diff --git a/src/addon/mod/assign/submission/file/providers/handler.ts b/src/addon/mod/assign/submission/file/providers/handler.ts
index 316712a1c..1e013db7a 100644
--- a/src/addon/mod/assign/submission/file/providers/handler.ts
+++ b/src/addon/mod/assign/submission/file/providers/handler.ts
@@ -237,9 +237,9 @@ export class AddonModAssignSubmissionFileHandler implements AddonModAssignSubmis
         return this.assignOfflineProvider.getSubmission(assign.id, submission.userid).catch(() => {
             // No offline data found.
         }).then((offlineData) => {
-            if (offlineData && offlineData.pluginData && offlineData.pluginData.files_filemanager) {
+            if (offlineData && offlineData.plugindata && offlineData.plugindata.files_filemanager) {
                 // Has offline data, return the number of files.
-                return offlineData.pluginData.files_filemanager.offline + offlineData.pluginData.files_filemanager.online.length;
+                return offlineData.plugindata.files_filemanager.offline + offlineData.plugindata.files_filemanager.online.length;
             }
 
             // No offline data, return the number of online files.
@@ -333,7 +333,7 @@ export class AddonModAssignSubmissionFileHandler implements AddonModAssignSubmis
     prepareSyncData(assign: any, submission: any, plugin: any, offlineData: any, pluginData: any, siteId?: string)
             : void | Promise<any> {
 
-        const filesData = offlineData && offlineData.pluginData && offlineData.pluginData.files_filemanager;
+        const filesData = offlineData && offlineData.plugindata && offlineData.plugindata.files_filemanager;
         if (filesData) {
             // Has some data to sync.
             let files = filesData.online || [],
diff --git a/src/addon/mod/assign/submission/onlinetext/component/onlinetext.ts b/src/addon/mod/assign/submission/onlinetext/component/onlinetext.ts
index 3172d3c73..b2c96f266 100644
--- a/src/addon/mod/assign/submission/onlinetext/component/onlinetext.ts
+++ b/src/addon/mod/assign/submission/onlinetext/component/onlinetext.ts
@@ -68,8 +68,8 @@ export class AddonModAssignSubmissionOnlineTextComponent extends AddonModAssignS
             return this.assignOfflineProvider.getSubmission(this.assign.id).catch(() => {
                 // No offline data found.
             }).then((offlineData) => {
-                if (offlineData && offlineData.pluginData && offlineData.pluginData.onlinetext_editor) {
-                    return offlineData.pluginData.onlinetext_editor.text;
+                if (offlineData && offlineData.plugindata && offlineData.plugindata.onlinetext_editor) {
+                    return offlineData.plugindata.onlinetext_editor.text;
                 }
 
                 // No offline data found, return online text.
diff --git a/src/addon/mod/assign/submission/onlinetext/providers/handler.ts b/src/addon/mod/assign/submission/onlinetext/providers/handler.ts
index 370b6f28b..4f06dc018 100644
--- a/src/addon/mod/assign/submission/onlinetext/providers/handler.ts
+++ b/src/addon/mod/assign/submission/onlinetext/providers/handler.ts
@@ -188,8 +188,8 @@ export class AddonModAssignSubmissionOnlineTextHandler implements AddonModAssign
         return this.assignOfflineProvider.getSubmission(assign.id, submission.userid).catch(() => {
             // No offline data found.
         }).then((data) => {
-            if (data && data.pluginData && data.pluginData.onlinetext_editor) {
-                return data.pluginData.onlinetext_editor.text;
+            if (data && data.plugindata && data.plugindata.onlinetext_editor) {
+                return data.plugindata.onlinetext_editor.text;
             }
 
             // No offline data found, get text from plugin.
diff --git a/src/addon/mod/choice/choice.module.ts b/src/addon/mod/choice/choice.module.ts
index 54731cb0a..16f54b7ed 100644
--- a/src/addon/mod/choice/choice.module.ts
+++ b/src/addon/mod/choice/choice.module.ts
@@ -25,6 +25,7 @@ import { AddonModChoicePrefetchHandler } from './providers/prefetch-handler';
 import { AddonModChoiceSyncProvider } from './providers/sync';
 import { AddonModChoiceSyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModChoiceOfflineProvider } from './providers/offline';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_CHOICE_PROVIDERS: any[] = [
@@ -50,10 +51,26 @@ export class AddonModChoiceModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModChoiceModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModChoicePrefetchHandler,
             contentLinksDelegate: CoreContentLinksDelegate, linkHandler: AddonModChoiceLinkHandler,
-            cronDelegate: CoreCronDelegate, syncHandler: AddonModChoiceSyncCronHandler) {
+            cronDelegate: CoreCronDelegate, syncHandler: AddonModChoiceSyncCronHandler, updateManager: CoreUpdateManagerProvider) {
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
         contentLinksDelegate.registerHandler(linkHandler);
         cronDelegate.register(syncHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_mod_choice_offline_responses',
+            newName: AddonModChoiceOfflineProvider.CHOICE_TABLE,
+            fields: [
+                {
+                    name: 'responses',
+                    type: 'object'
+                },
+                {
+                    name: 'deleting',
+                    type: 'boolean'
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/mod/choice/providers/offline.ts b/src/addon/mod/choice/providers/offline.ts
index ea4e3538e..f17e1d2ed 100644
--- a/src/addon/mod/choice/providers/offline.ts
+++ b/src/addon/mod/choice/providers/offline.ts
@@ -22,10 +22,10 @@ import { CoreSitesProvider } from '@providers/sites';
 export class AddonModChoiceOfflineProvider {
 
     // Variables for database.
-    protected CHOICE_TABLE = 'addon_mod_choice_responses';
+    static CHOICE_TABLE = 'addon_mod_choice_responses';
     protected tablesSchema = [
         {
-            name: this.CHOICE_TABLE,
+            name: AddonModChoiceOfflineProvider.CHOICE_TABLE,
             columns: [
                 {
                     name: 'choiceid',
@@ -76,7 +76,7 @@ export class AddonModChoiceOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().deleteRecords(this.CHOICE_TABLE, {choiceid: choiceId, userid: userId});
+            return site.getDb().deleteRecords(AddonModChoiceOfflineProvider.CHOICE_TABLE, {choiceid: choiceId, userid: userId});
         });
     }
 
@@ -88,7 +88,7 @@ export class AddonModChoiceOfflineProvider {
      */
     getResponses(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.CHOICE_TABLE).then((records) => {
+            return site.getDb().getRecords(AddonModChoiceOfflineProvider.CHOICE_TABLE).then((records) => {
                 records.forEach((record) => {
                     record.responses = JSON.parse(record.responses);
                 });
@@ -127,7 +127,8 @@ export class AddonModChoiceOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecord(this.CHOICE_TABLE, {choiceid: choiceId, userid: userId}).then((record) => {
+            return site.getDb().getRecord(AddonModChoiceOfflineProvider.CHOICE_TABLE, {choiceid: choiceId, userid: userId})
+                    .then((record) => {
                 record.responses = JSON.parse(record.responses);
 
                 return record;
@@ -160,7 +161,7 @@ export class AddonModChoiceOfflineProvider {
                 timecreated: new Date().getTime()
             };
 
-            return site.getDb().insertRecord(this.CHOICE_TABLE, entry);
+            return site.getDb().insertRecord(AddonModChoiceOfflineProvider.CHOICE_TABLE, entry);
         });
     }
 }
diff --git a/src/addon/mod/data/data.module.ts b/src/addon/mod/data/data.module.ts
index 431ac084f..110991b0f 100644
--- a/src/addon/mod/data/data.module.ts
+++ b/src/addon/mod/data/data.module.ts
@@ -33,6 +33,7 @@ import { AddonModDataOfflineProvider } from './providers/offline';
 import { AddonModDataFieldsDelegate } from './providers/fields-delegate';
 import { AddonModDataDefaultFieldHandler } from './providers/default-field-handler';
 import { AddonModDataFieldModule } from './fields/field.module';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_DATA_PROVIDERS: any[] = [
@@ -66,7 +67,7 @@ export class AddonModDataModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModDataModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModDataPrefetchHandler,
             contentLinksDelegate: CoreContentLinksDelegate, linkHandler: AddonModDataLinkHandler,
-            cronDelegate: CoreCronDelegate, syncHandler: AddonModDataSyncCronHandler,
+            cronDelegate: CoreCronDelegate, syncHandler: AddonModDataSyncCronHandler, updateManager: CoreUpdateManagerProvider,
             approveLinkHandler: AddonModDataApproveLinkHandler, deleteLinkHandler: AddonModDataDeleteLinkHandler,
             showLinkHandler: AddonModDataShowLinkHandler, editLinkHandler: AddonModDataEditLinkHandler) {
         moduleDelegate.registerHandler(moduleHandler);
@@ -77,5 +78,21 @@ export class AddonModDataModule {
         contentLinksDelegate.registerHandler(showLinkHandler);
         contentLinksDelegate.registerHandler(editLinkHandler);
         cronDelegate.register(syncHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_mod_data_entry',
+            newName: AddonModDataOfflineProvider.DATA_ENTRY_TABLE,
+            fields: [
+                {
+                    name: 'fields',
+                    type: 'object'
+                },
+                {
+                    name: 'dataAndEntry',
+                    delete: true
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/mod/data/providers/offline.ts b/src/addon/mod/data/providers/offline.ts
index c30316b1a..76ca2556d 100644
--- a/src/addon/mod/data/providers/offline.ts
+++ b/src/addon/mod/data/providers/offline.ts
@@ -27,10 +27,10 @@ export class AddonModDataOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected DATA_ENTRY_TABLE = 'addon_mod_data_entry';
+    static DATA_ENTRY_TABLE = 'addon_mod_data_entry';
     protected tablesSchema = [
         {
-            name: this.DATA_ENTRY_TABLE,
+            name: AddonModDataOfflineProvider.DATA_ENTRY_TABLE,
             columns: [
                 {
                     name: 'dataid',
@@ -102,7 +102,8 @@ export class AddonModDataOfflineProvider {
      */
     deleteEntry(dataId: number, entryId: number, action: string, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.DATA_ENTRY_TABLE, {dataid: dataId, entryid: entryId, action: action});
+            return site.getDb().deleteRecords(AddonModDataOfflineProvider.DATA_ENTRY_TABLE, {dataid: dataId, entryid: entryId,
+                    action: action});
         });
     }
 
@@ -114,7 +115,9 @@ export class AddonModDataOfflineProvider {
      */
     getAllEntries(siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getAllRecords(this.DATA_ENTRY_TABLE);
+            return site.getDb().getAllRecords(AddonModDataOfflineProvider.DATA_ENTRY_TABLE);
+        }).then((entries) => {
+            return entries.map(this.parseRecord.bind(this));
         });
     }
 
@@ -127,7 +130,9 @@ export class AddonModDataOfflineProvider {
      */
     getDatabaseEntries(dataId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.DATA_ENTRY_TABLE, {dataid: dataId});
+            return site.getDb().getRecords(AddonModDataOfflineProvider.DATA_ENTRY_TABLE, {dataid: dataId});
+        }).then((entries) => {
+            return entries.map(this.parseRecord.bind(this));
         });
     }
 
@@ -142,7 +147,10 @@ export class AddonModDataOfflineProvider {
      */
     getEntry(dataId: number, entryId: number, action: string, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.DATA_ENTRY_TABLE, {dataid: dataId, entryid: entryId, action: action});
+            return site.getDb().getRecord(AddonModDataOfflineProvider.DATA_ENTRY_TABLE, {dataid: dataId, entryid: entryId,
+                    action: action});
+        }).then((entry) => {
+            return this.parseRecord(entry);
         });
     }
 
@@ -156,7 +164,9 @@ export class AddonModDataOfflineProvider {
      */
     getEntryActions(dataId: number, entryId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.DATA_ENTRY_TABLE, {dataid: dataId, entryid: entryId});
+            return site.getDb().getRecords(AddonModDataOfflineProvider.DATA_ENTRY_TABLE, {dataid: dataId, entryid: entryId});
+        }).then((entries) => {
+            return entries.map(this.parseRecord.bind(this));
         });
     }
 
@@ -208,6 +218,18 @@ export class AddonModDataOfflineProvider {
         });
     }
 
+    /**
+     * Parse "fields" of an offline record.
+     *
+     * @param  {any} record Record object
+     * @return {any}        Record object with columns parsed.
+     */
+    protected parseRecord(record: any): any {
+        record.fields = this.textUtils.parseJSON(record.fields);
+
+        return record;
+    }
+
     /**
      * Save an entry data to be sent later.
      *
@@ -233,11 +255,11 @@ export class AddonModDataOfflineProvider {
                     groupid: groupId,
                     action: action,
                     entryid: entryId,
-                    fields: fields,
+                    fields: JSON.stringify(fields || []),
                     timemodified: timemodified
                 };
 
-            return site.getDb().insertRecord(this.DATA_ENTRY_TABLE, entry);
+            return site.getDb().insertRecord(AddonModDataOfflineProvider.DATA_ENTRY_TABLE, entry);
         });
     }
 
diff --git a/src/addon/mod/feedback/feedback.module.ts b/src/addon/mod/feedback/feedback.module.ts
index d80fc9075..8ebb52c4d 100644
--- a/src/addon/mod/feedback/feedback.module.ts
+++ b/src/addon/mod/feedback/feedback.module.ts
@@ -31,6 +31,7 @@ import { AddonModFeedbackPrefetchHandler } from './providers/prefetch-handler';
 import { AddonModFeedbackSyncProvider } from './providers/sync';
 import { AddonModFeedbackSyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModFeedbackOfflineProvider } from './providers/offline';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_FEEDBACK_PROVIDERS: any[] = [
@@ -63,7 +64,7 @@ export class AddonModFeedbackModule {
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModFeedbackPrefetchHandler,
             contentLinksDelegate: CoreContentLinksDelegate, linkHandler: AddonModFeedbackLinkHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModFeedbackSyncCronHandler,
-            analysisLinkHandler: AddonModFeedbackAnalysisLinkHandler,
+            analysisLinkHandler: AddonModFeedbackAnalysisLinkHandler, updateManager: CoreUpdateManagerProvider,
             showEntriesLinkHandler: AddonModFeedbackShowEntriesLinkHandler,
             showNonRespondentsLinkHandler: AddonModFeedbackShowNonRespondentsLinkHandler,
             completeLinkHandler: AddonModFeedbackCompleteLinkHandler,
@@ -77,5 +78,17 @@ export class AddonModFeedbackModule {
         contentLinksDelegate.registerHandler(completeLinkHandler);
         contentLinksDelegate.registerHandler(printLinkHandler);
         cronDelegate.register(syncHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_mod_feedback_responses',
+            newName: AddonModFeedbackOfflineProvider.FEEDBACK_TABLE,
+            fields: [
+                {
+                    name: 'responses',
+                    type: 'object'
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/mod/feedback/providers/offline.ts b/src/addon/mod/feedback/providers/offline.ts
index ffa69a4fd..89c7f5e0f 100644
--- a/src/addon/mod/feedback/providers/offline.ts
+++ b/src/addon/mod/feedback/providers/offline.ts
@@ -27,10 +27,10 @@ export class AddonModFeedbackOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected FEEDBACK_TABLE = 'addon_mod_feedback_answers';
+    static FEEDBACK_TABLE = 'addon_mod_feedback_answers';
     protected tablesSchema = [
         {
-            name: this.FEEDBACK_TABLE,
+            name: AddonModFeedbackOfflineProvider.FEEDBACK_TABLE,
             columns: [
                 {
                     name: 'feedbackid',
@@ -73,7 +73,7 @@ export class AddonModFeedbackOfflineProvider {
      */
     deleteFeedbackPageResponses(feedbackId: number, page: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.FEEDBACK_TABLE, {feedbackid: feedbackId, page: page});
+            return site.getDb().deleteRecords(AddonModFeedbackOfflineProvider.FEEDBACK_TABLE, {feedbackid: feedbackId, page: page});
         });
     }
 
@@ -85,7 +85,7 @@ export class AddonModFeedbackOfflineProvider {
      */
     getAllFeedbackResponses(siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getAllRecords(this.FEEDBACK_TABLE).then((entries) => {
+            return site.getDb().getAllRecords(AddonModFeedbackOfflineProvider.FEEDBACK_TABLE).then((entries) => {
                 return entries.map((entry) => {
                     entry.responses = this.textUtils.parseJSON(entry.responses);
                 });
@@ -102,10 +102,10 @@ export class AddonModFeedbackOfflineProvider {
      */
     getFeedbackResponses(feedbackId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.FEEDBACK_TABLE, {feedbackid: feedbackId}).then((entries) => {
-                return entries.map((entry) => {
-                    entry.responses = this.textUtils.parseJSON(entry.responses);
-                });
+            return site.getDb().getRecords(AddonModFeedbackOfflineProvider.FEEDBACK_TABLE, {feedbackid: feedbackId});
+        }).then((entries) => {
+            return entries.map((entry) => {
+                entry.responses = this.textUtils.parseJSON(entry.responses);
             });
         });
     }
@@ -120,11 +120,11 @@ export class AddonModFeedbackOfflineProvider {
      */
     getFeedbackPageResponses(feedbackId: number, page: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.FEEDBACK_TABLE, {feedbackid: feedbackId, page: page}).then((entry) => {
-                entry.responses = this.textUtils.parseJSON(entry.responses);
+            return site.getDb().getRecord(AddonModFeedbackOfflineProvider.FEEDBACK_TABLE, {feedbackid: feedbackId, page: page});
+        }).then((entry) => {
+            entry.responses = this.textUtils.parseJSON(entry.responses);
 
-                return entry;
-            });
+            return entry;
         });
     }
 
@@ -161,7 +161,7 @@ export class AddonModFeedbackOfflineProvider {
                     timemodified: this.timeUtils.timestamp()
                 };
 
-            return site.getDb().insertRecord(this.FEEDBACK_TABLE, entry);
+            return site.getDb().insertRecord(AddonModFeedbackOfflineProvider.FEEDBACK_TABLE, entry);
         });
     }
 }
diff --git a/src/addon/mod/folder/providers/pluginfile-handler.ts b/src/addon/mod/folder/providers/pluginfile-handler.ts
index b35efe663..943d2b0d4 100644
--- a/src/addon/mod/folder/providers/pluginfile-handler.ts
+++ b/src/addon/mod/folder/providers/pluginfile-handler.ts
@@ -21,6 +21,7 @@ import { CorePluginFileHandler } from '@providers/plugin-file-delegate';
 @Injectable()
 export class AddonModFolderPluginFileHandler implements CorePluginFileHandler {
     name = 'AddonModFolderPluginFileHandler';
+    component = 'mod_folder';
 
     /**
      * Return the RegExp to match the revision on pluginfile URLs.
diff --git a/src/addon/mod/forum/forum.module.ts b/src/addon/mod/forum/forum.module.ts
index 67b9915dc..1aa82db95 100644
--- a/src/addon/mod/forum/forum.module.ts
+++ b/src/addon/mod/forum/forum.module.ts
@@ -27,6 +27,7 @@ import { AddonModForumSyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModForumIndexLinkHandler } from './providers/index-link-handler';
 import { AddonModForumDiscussionLinkHandler } from './providers/discussion-link-handler';
 import { AddonModForumComponentsModule } from './components/components.module';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_FORUM_PROVIDERS: any[] = [
@@ -54,11 +55,49 @@ export class AddonModForumModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModForumModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModForumPrefetchHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModForumSyncCronHandler, linksDelegate: CoreContentLinksDelegate,
-            indexHandler: AddonModForumIndexLinkHandler, discussionHandler: AddonModForumDiscussionLinkHandler) {
+            indexHandler: AddonModForumIndexLinkHandler, discussionHandler: AddonModForumDiscussionLinkHandler,
+            updateManager: CoreUpdateManagerProvider) {
+
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
         cronDelegate.register(syncHandler);
         linksDelegate.registerHandler(indexHandler);
         linksDelegate.registerHandler(discussionHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTablesMigration([
+            {
+                name: 'mma_mod_forum_offline_discussions',
+                newName: AddonModForumOfflineProvider.DISCUSSIONS_TABLE,
+                fields: [
+                    {
+                        name: 'forumAndUser',
+                        delete: true
+                    },
+                    {
+                        name: 'options',
+                        type: 'object'
+                    }
+                ]
+            },
+            {
+                name: 'mma_mod_forum_offline_replies',
+                newName: AddonModForumOfflineProvider.REPLIES_TABLE,
+                fields: [
+                    {
+                        name: 'forumAndUser',
+                        delete: true
+                    },
+                    {
+                        name: 'discussionAndUser',
+                        delete: true
+                    },
+                    {
+                        name: 'options',
+                        type: 'object'
+                    }
+                ]
+            }
+        ]);
     }
 }
diff --git a/src/addon/mod/forum/providers/offline.ts b/src/addon/mod/forum/providers/offline.ts
index ac3a44261..4ba0c0e86 100644
--- a/src/addon/mod/forum/providers/offline.ts
+++ b/src/addon/mod/forum/providers/offline.ts
@@ -24,12 +24,12 @@ import { CoreTextUtilsProvider } from '@providers/utils/text';
 export class AddonModForumOfflineProvider {
 
     // Variables for database.
-    protected DISCUSSIONS_TABLE = 'addon_mod_forum_discussions';
-    protected REPLIES_TABLE = 'addon_mod_forum_replies';
+    static DISCUSSIONS_TABLE = 'addon_mod_forum_discussions';
+    static REPLIES_TABLE = 'addon_mod_forum_replies';
 
     protected tablesSchema = [
         {
-            name: this.DISCUSSIONS_TABLE,
+            name: AddonModForumOfflineProvider.DISCUSSIONS_TABLE,
             columns: [
                 {
                     name: 'forumid',
@@ -71,7 +71,7 @@ export class AddonModForumOfflineProvider {
             primaryKeys: ['forumid', 'userid', 'timecreated']
         },
         {
-            name: this.REPLIES_TABLE,
+            name: AddonModForumOfflineProvider.REPLIES_TABLE,
             columns: [
                 {
                     name: 'postid',
@@ -141,7 +141,7 @@ export class AddonModForumOfflineProvider {
                 timecreated: timeCreated,
             };
 
-            return site.getDb().deleteRecords(this.DISCUSSIONS_TABLE, conditions);
+            return site.getDb().deleteRecords(AddonModForumOfflineProvider.DISCUSSIONS_TABLE, conditions);
         });
     }
 
@@ -162,7 +162,7 @@ export class AddonModForumOfflineProvider {
                 timecreated: timeCreated,
             };
 
-            return site.getDb().getRecord(this.DISCUSSIONS_TABLE, conditions).then((record) => {
+            return site.getDb().getRecord(AddonModForumOfflineProvider.DISCUSSIONS_TABLE, conditions).then((record) => {
                 record.options = this.textUtils.parseJSON(record.options);
 
                 return record;
@@ -178,7 +178,7 @@ export class AddonModForumOfflineProvider {
      */
     getAllNewDiscussions(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.DISCUSSIONS_TABLE).then(this.parseRecordOptions.bind(this));
+            return site.getDb().getRecords(AddonModForumOfflineProvider.DISCUSSIONS_TABLE).then(this.parseRecordOptions.bind(this));
         });
     }
 
@@ -214,7 +214,8 @@ export class AddonModForumOfflineProvider {
                 userid: userId || site.getUserId(),
             };
 
-            return site.getDb().getRecords(this.DISCUSSIONS_TABLE, conditions).then(this.parseRecordOptions.bind(this));
+            return site.getDb().getRecords(AddonModForumOfflineProvider.DISCUSSIONS_TABLE, conditions)
+                    .then(this.parseRecordOptions.bind(this));
         });
     }
 
@@ -248,7 +249,7 @@ export class AddonModForumOfflineProvider {
                 timecreated: timeCreated || new Date().getTime()
             };
 
-            return site.getDb().insertRecord(this.DISCUSSIONS_TABLE, data);
+            return site.getDb().insertRecord(AddonModForumOfflineProvider.DISCUSSIONS_TABLE, data);
         });
     }
 
@@ -267,7 +268,7 @@ export class AddonModForumOfflineProvider {
                 userid: userId || site.getUserId(),
             };
 
-            return site.getDb().deleteRecords(this.REPLIES_TABLE, conditions);
+            return site.getDb().deleteRecords(AddonModForumOfflineProvider.REPLIES_TABLE, conditions);
         });
     }
 
@@ -279,7 +280,7 @@ export class AddonModForumOfflineProvider {
      */
     getAllReplies(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.REPLIES_TABLE).then(this.parseRecordOptions.bind(this));
+            return site.getDb().getRecords(AddonModForumOfflineProvider.REPLIES_TABLE).then(this.parseRecordOptions.bind(this));
         });
     }
 
@@ -315,7 +316,8 @@ export class AddonModForumOfflineProvider {
                 userid: userId || site.getUserId(),
             };
 
-            return site.getDb().getRecords(this.REPLIES_TABLE, conditions).then(this.parseRecordOptions.bind(this));
+            return site.getDb().getRecords(AddonModForumOfflineProvider.REPLIES_TABLE, conditions)
+                    .then(this.parseRecordOptions.bind(this));
         });
     }
 
@@ -351,7 +353,8 @@ export class AddonModForumOfflineProvider {
                 userid: userId || site.getUserId(),
             };
 
-            return site.getDb().getRecords(this.REPLIES_TABLE, conditions).then(this.parseRecordOptions.bind(this));
+            return site.getDb().getRecords(AddonModForumOfflineProvider.REPLIES_TABLE, conditions)
+                    .then(this.parseRecordOptions.bind(this));
         });
     }
 
@@ -386,7 +389,7 @@ export class AddonModForumOfflineProvider {
                 timecreated: new Date().getTime()
             };
 
-            return site.getDb().insertRecord(this.REPLIES_TABLE, data);
+            return site.getDb().insertRecord(AddonModForumOfflineProvider.REPLIES_TABLE, data);
         });
     }
 
diff --git a/src/addon/mod/glossary/glossary.module.ts b/src/addon/mod/glossary/glossary.module.ts
index 7f606f5d4..148311664 100644
--- a/src/addon/mod/glossary/glossary.module.ts
+++ b/src/addon/mod/glossary/glossary.module.ts
@@ -27,6 +27,7 @@ import { AddonModGlossarySyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModGlossaryIndexLinkHandler } from './providers/index-link-handler';
 import { AddonModGlossaryEntryLinkHandler } from './providers/entry-link-handler';
 import { AddonModGlossaryComponentsModule } from './components/components.module';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_GLOSSARY_PROVIDERS: any[] = [
@@ -54,11 +55,37 @@ export class AddonModGlossaryModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModGlossaryModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModGlossaryPrefetchHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModGlossarySyncCronHandler, linksDelegate: CoreContentLinksDelegate,
-            indexHandler: AddonModGlossaryIndexLinkHandler, discussionHandler: AddonModGlossaryEntryLinkHandler) {
+            indexHandler: AddonModGlossaryIndexLinkHandler, discussionHandler: AddonModGlossaryEntryLinkHandler,
+            updateManager: CoreUpdateManagerProvider) {
+
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
         cronDelegate.register(syncHandler);
         linksDelegate.registerHandler(indexHandler);
         linksDelegate.registerHandler(discussionHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_mod_glossary_add_entry',
+            newName: AddonModGlossaryOfflineProvider.ENTRIES_TABLE,
+            fields: [
+                {
+                    name: 'glossaryAndConcept',
+                    delete: true
+                },
+                {
+                    name: 'glossaryAndUser',
+                    delete: true
+                },
+                {
+                    name: 'options',
+                    type: 'object'
+                },
+                {
+                    name: 'attachments',
+                    type: 'object'
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/mod/glossary/providers/offline.ts b/src/addon/mod/glossary/providers/offline.ts
index d33af7131..0adccdb0b 100644
--- a/src/addon/mod/glossary/providers/offline.ts
+++ b/src/addon/mod/glossary/providers/offline.ts
@@ -25,11 +25,11 @@ import { CoreTextUtilsProvider } from '@providers/utils/text';
 export class AddonModGlossaryOfflineProvider {
 
     // Variables for database.
-    protected ENTRIES_TABLE = 'addon_mod_glossary_entrues';
+    static ENTRIES_TABLE = 'addon_mod_glossary_entrues';
 
     protected tablesSchema = [
         {
-            name: this.ENTRIES_TABLE,
+            name: AddonModGlossaryOfflineProvider.ENTRIES_TABLE,
             columns: [
                 {
                     name: 'glossaryid',
@@ -96,7 +96,7 @@ export class AddonModGlossaryOfflineProvider {
                 timecreated: timeCreated,
             };
 
-            return site.getDb().deleteRecords(this.ENTRIES_TABLE, conditions);
+            return site.getDb().deleteRecords(AddonModGlossaryOfflineProvider.ENTRIES_TABLE, conditions);
         });
     }
 
@@ -108,7 +108,7 @@ export class AddonModGlossaryOfflineProvider {
      */
     getAllNewEntries(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.ENTRIES_TABLE).then((records: any[]) => {
+            return site.getDb().getRecords(AddonModGlossaryOfflineProvider.ENTRIES_TABLE).then((records: any[]) => {
                 return records.map(this.parseRecord.bind(this));
             });
         });
@@ -131,7 +131,8 @@ export class AddonModGlossaryOfflineProvider {
                 timecreated: timeCreated,
             };
 
-            return site.getDb().getRecord(this.ENTRIES_TABLE, conditions).then(this.parseRecord.bind(this));
+            return site.getDb().getRecord(AddonModGlossaryOfflineProvider.ENTRIES_TABLE, conditions)
+                    .then(this.parseRecord.bind(this));
         });
     }
 
@@ -150,7 +151,7 @@ export class AddonModGlossaryOfflineProvider {
                 userId: userId || site.getUserId(),
             };
 
-            return site.getDb().getRecords(this.ENTRIES_TABLE, conditions).then((records: any[]) => {
+            return site.getDb().getRecords(AddonModGlossaryOfflineProvider.ENTRIES_TABLE, conditions).then((records: any[]) => {
                 return records.map(this.parseRecord.bind(this));
             });
         });
@@ -172,7 +173,7 @@ export class AddonModGlossaryOfflineProvider {
                 concept: concept,
             };
 
-            return site.getDb().getRecords(this.ENTRIES_TABLE, conditions).then((entries) => {
+            return site.getDb().getRecords(AddonModGlossaryOfflineProvider.ENTRIES_TABLE, conditions).then((entries) => {
                 if (!entries.length) {
                     return false;
                 }
@@ -229,7 +230,7 @@ export class AddonModGlossaryOfflineProvider {
             }
 
             return discardPromise.then(() => {
-                return site.getDb().insertRecord(this.ENTRIES_TABLE, entry).then(() => false);
+                return site.getDb().insertRecord(AddonModGlossaryOfflineProvider.ENTRIES_TABLE, entry).then(() => false);
             });
         });
     }
diff --git a/src/addon/mod/imscp/providers/pluginfile-handler.ts b/src/addon/mod/imscp/providers/pluginfile-handler.ts
index e64e9b44f..f3cd322d6 100644
--- a/src/addon/mod/imscp/providers/pluginfile-handler.ts
+++ b/src/addon/mod/imscp/providers/pluginfile-handler.ts
@@ -21,6 +21,7 @@ import { CorePluginFileHandler } from '@providers/plugin-file-delegate';
 @Injectable()
 export class AddonModImscpPluginFileHandler implements CorePluginFileHandler {
     name = 'AddonModImscpPluginFileHandler';
+    component = 'mod_imscp';
 
     /**
      * Return the RegExp to match the revision on pluginfile URLs.
diff --git a/src/addon/mod/lesson/components/index/index.ts b/src/addon/mod/lesson/components/index/index.ts
index b3b21b9da..59178364b 100644
--- a/src/addon/mod/lesson/components/index/index.ts
+++ b/src/addon/mod/lesson/components/index/index.ts
@@ -364,7 +364,7 @@ export class AddonModLessonIndexComponent extends CoreCourseModuleMainActivityCo
         this.navCtrl.push('AddonModLessonPlayerPage', {
             courseId: this.courseId,
             lessonId: this.lesson.id,
-            pageId: this.retakeToReview.pageId,
+            pageId: this.retakeToReview.pageid,
             password: this.password,
             review: true,
             retake: this.retakeToReview.retake
diff --git a/src/addon/mod/lesson/lesson.module.ts b/src/addon/mod/lesson/lesson.module.ts
index 42a83b2d0..dc5078ae7 100644
--- a/src/addon/mod/lesson/lesson.module.ts
+++ b/src/addon/mod/lesson/lesson.module.ts
@@ -28,6 +28,7 @@ import { AddonModLessonSyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModLessonIndexLinkHandler } from './providers/index-link-handler';
 import { AddonModLessonGradeLinkHandler } from './providers/grade-link-handler';
 import { AddonModLessonReportLinkHandler } from './providers/report-link-handler';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_LESSON_PROVIDERS: any[] = [
@@ -57,7 +58,7 @@ export class AddonModLessonModule {
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModLessonPrefetchHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModLessonSyncCronHandler, linksDelegate: CoreContentLinksDelegate,
             indexHandler: AddonModLessonIndexLinkHandler, gradeHandler: AddonModLessonGradeLinkHandler,
-            reportHandler: AddonModLessonReportLinkHandler) {
+            reportHandler: AddonModLessonReportLinkHandler, updateManager: CoreUpdateManagerProvider) {
 
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
@@ -65,5 +66,71 @@ export class AddonModLessonModule {
         linksDelegate.registerHandler(indexHandler);
         linksDelegate.registerHandler(gradeHandler);
         linksDelegate.registerHandler(reportHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTablesMigration([
+            {
+                name: 'mma_mod_lesson_password',
+                newName: AddonModLessonProvider.PASSWORD_TABLE,
+                fields: [
+                    {
+                        name: 'id',
+                        newName: 'lessonid'
+                    }
+                ]
+            },
+            {
+                name: 'mma_mod_lesson_retakes',
+                newName: AddonModLessonOfflineProvider.RETAKES_TABLE,
+                fields: [
+                    {
+                        name: 'finished',
+                        type: 'boolean'
+                    },
+                    {
+                        name: 'outoftime',
+                        type: 'boolean'
+                    }
+                ]
+            },
+            {
+                name: 'mma_mod_lesson_page_attempts',
+                newName: AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE,
+                fields: [
+                    {
+                        name: 'lessonAndPage',
+                        delete: true
+                    },
+                    {
+                        name: 'lessonAndRetake',
+                        delete: true
+                    },
+                    {
+                        name: 'lessonAndRetakeAndType',
+                        delete: true
+                    },
+                    {
+                        name: 'lessonAndRetakeAndPage',
+                        delete: true
+                    },
+                    {
+                        name: 'data',
+                        type: 'object'
+                    },
+                    {
+                        name: 'correct',
+                        type: 'boolean'
+                    },
+                    {
+                        name: 'userAnswer',
+                        type: 'object'
+                    }
+                ]
+            },
+            {
+                name: 'mma_mod_lesson_retakes_finished_sync',
+                newName: AddonModLessonSyncProvider.RETAKES_FINISHED_TABLE
+            }
+        ]);
     }
 }
diff --git a/src/addon/mod/lesson/providers/lesson-offline.ts b/src/addon/mod/lesson/providers/lesson-offline.ts
index d1d80cf14..cf037fadb 100644
--- a/src/addon/mod/lesson/providers/lesson-offline.ts
+++ b/src/addon/mod/lesson/providers/lesson-offline.ts
@@ -29,11 +29,11 @@ export class AddonModLessonOfflineProvider {
     protected logger;
 
     // Variables for database. We use lowercase in the names to match the WS responses.
-    protected RETAKES_TABLE = 'addon_mod_lesson_retakes';
-    protected PAGE_ATTEMPTS_TABLE = 'addon_mod_lesson_page_attempts';
+    static RETAKES_TABLE = 'addon_mod_lesson_retakes';
+    static PAGE_ATTEMPTS_TABLE = 'addon_mod_lesson_page_attempts';
     protected tablesSchema = [
         {
-            name: this.RETAKES_TABLE,
+            name: AddonModLessonOfflineProvider.RETAKES_TABLE,
             columns: [
                 {
                     name: 'lessonid',
@@ -68,7 +68,7 @@ export class AddonModLessonOfflineProvider {
             ]
         },
         {
-            name: this.PAGE_ATTEMPTS_TABLE,
+            name: AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE,
             columns: [
                 {
                     name: 'lessonid',
@@ -142,7 +142,7 @@ export class AddonModLessonOfflineProvider {
      */
     deleteAttempt(lessonId: number, retake: number, pageId: number, timemodified: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.PAGE_ATTEMPTS_TABLE, {
+            return site.getDb().deleteRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, {
                 lessonid: lessonId,
                 retake: retake,
                 pageid: pageId,
@@ -160,7 +160,7 @@ export class AddonModLessonOfflineProvider {
      */
     deleteRetake(lessonId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.RETAKES_TABLE, {lessonid: lessonId});
+            return site.getDb().deleteRecords(AddonModLessonOfflineProvider.RETAKES_TABLE, {lessonid: lessonId});
         });
     }
 
@@ -175,7 +175,8 @@ export class AddonModLessonOfflineProvider {
      */
     deleteRetakeAttemptsForPage(lessonId: number, retake: number, pageId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake, pageid: pageId});
+            return site.getDb().deleteRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId,
+                    retake: retake, pageid: pageId});
         });
     }
 
@@ -200,7 +201,7 @@ export class AddonModLessonOfflineProvider {
                 entry.outoftime = outOfTime ? 1 : 0;
                 entry.timemodified = this.timeUtils.timestamp();
 
-                return site.getDb().insertRecord(this.RETAKES_TABLE, entry);
+                return site.getDb().insertRecord(AddonModLessonOfflineProvider.RETAKES_TABLE, entry);
             });
         });
     }
@@ -213,7 +214,7 @@ export class AddonModLessonOfflineProvider {
      */
     getAllAttempts(siteId?: string): Promise<any> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getAllRecords(this.PAGE_ATTEMPTS_TABLE);
+            return db.getAllRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE);
         }).then((attempts) => {
             return this.parsePageAttempts(attempts);
         });
@@ -256,7 +257,7 @@ export class AddonModLessonOfflineProvider {
      */
     getAllRetakes(siteId?: string): Promise<any> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getAllRecords(this.RETAKES_TABLE);
+            return db.getAllRecords(AddonModLessonOfflineProvider.RETAKES_TABLE);
         });
     }
 
@@ -297,7 +298,7 @@ export class AddonModLessonOfflineProvider {
      */
     getLessonAttempts(lessonId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId});
+            return site.getDb().getRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId});
         }).then((attempts) => {
             return this.parsePageAttempts(attempts);
         });
@@ -361,7 +362,7 @@ export class AddonModLessonOfflineProvider {
      */
     getRetake(lessonId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.RETAKES_TABLE, {lessonid: lessonId});
+            return site.getDb().getRecord(AddonModLessonOfflineProvider.RETAKES_TABLE, {lessonid: lessonId});
         });
     }
 
@@ -375,7 +376,7 @@ export class AddonModLessonOfflineProvider {
      */
     getRetakeAttempts(lessonId: number, retake: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake});
+            return site.getDb().getRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake});
         }).then((attempts) => {
             return this.parsePageAttempts(attempts);
         });
@@ -392,7 +393,8 @@ export class AddonModLessonOfflineProvider {
      */
     getRetakeAttemptsForPage(lessonId: number, retake: number, pageId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake, pageid: pageId});
+            return site.getDb().getRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake,
+                    pageid: pageId});
         }).then((attempts) => {
             return this.parsePageAttempts(attempts);
         });
@@ -409,7 +411,8 @@ export class AddonModLessonOfflineProvider {
      */
     getRetakeAttemptsForType(lessonId: number, retake: number, type: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake, type: type});
+            return site.getDb().getRecords(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, {lessonid: lessonId, retake: retake,
+                    type: type});
         }).then((attempts) => {
             return this.parsePageAttempts(attempts);
         });
@@ -563,7 +566,7 @@ export class AddonModLessonOfflineProvider {
                 useranswer: userAnswer ? JSON.stringify(userAnswer) : null,
             };
 
-            return site.getDb().insertRecord(this.PAGE_ATTEMPTS_TABLE, entry);
+            return site.getDb().insertRecord(AddonModLessonOfflineProvider.PAGE_ATTEMPTS_TABLE, entry);
         }).then(() => {
             if (page.type == AddonModLessonProvider.TYPE_QUESTION) {
                 // It's a question page, set it as last question page attempted.
@@ -591,7 +594,7 @@ export class AddonModLessonOfflineProvider {
                 entry.lastquestionpage = lastPage;
                 entry.timemodified = this.timeUtils.timestamp();
 
-                return site.getDb().insertRecord(this.RETAKES_TABLE, entry);
+                return site.getDb().insertRecord(AddonModLessonOfflineProvider.RETAKES_TABLE, entry);
             });
         });
     }
diff --git a/src/addon/mod/lesson/providers/lesson-sync.ts b/src/addon/mod/lesson/providers/lesson-sync.ts
index e2cd2841c..87ddd520b 100644
--- a/src/addon/mod/lesson/providers/lesson-sync.ts
+++ b/src/addon/mod/lesson/providers/lesson-sync.ts
@@ -58,12 +58,12 @@ export class AddonModLessonSyncProvider extends CoreSyncBaseProvider {
     protected componentTranslate: string;
 
     // Variables for database.
-    protected RETAKES_FINISHED_TABLE = 'addon_mod_lesson_retakes_finished_sync';
+    static RETAKES_FINISHED_TABLE = 'addon_mod_lesson_retakes_finished_sync';
     protected tablesSchema = {
-        name: this.RETAKES_FINISHED_TABLE,
+        name: AddonModLessonSyncProvider.RETAKES_FINISHED_TABLE,
         columns: [
             {
-                name: 'lessonId',
+                name: 'lessonid',
                 type: 'INTEGER',
                 primaryKey: true
             },
@@ -72,7 +72,7 @@ export class AddonModLessonSyncProvider extends CoreSyncBaseProvider {
                 type: 'INTEGER'
             },
             {
-                name: 'pageId',
+                name: 'pageid',
                 type: 'INTEGER'
             },
             {
@@ -105,7 +105,7 @@ export class AddonModLessonSyncProvider extends CoreSyncBaseProvider {
      */
     deleteRetakeFinishedInSync(lessonId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.RETAKES_FINISHED_TABLE, {lessonId});
+            return site.getDb().deleteRecords(AddonModLessonSyncProvider.RETAKES_FINISHED_TABLE, {lessonid: lessonId});
         }).catch(() => {
             // Ignore errors, maybe there is none.
         });
@@ -120,7 +120,7 @@ export class AddonModLessonSyncProvider extends CoreSyncBaseProvider {
      */
     getRetakeFinishedInSync(lessonId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.RETAKES_FINISHED_TABLE, {lessonId});
+            return site.getDb().getRecord(AddonModLessonSyncProvider.RETAKES_FINISHED_TABLE, {lessonid: lessonId});
         }).catch(() => {
             // Ignore errors, return undefined.
         });
@@ -164,10 +164,10 @@ export class AddonModLessonSyncProvider extends CoreSyncBaseProvider {
      */
     setRetakeFinishedInSync(lessonId: number, retake: number, pageId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().insertRecord(this.RETAKES_FINISHED_TABLE, {
-                lessonId: lessonId,
+            return site.getDb().insertRecord(AddonModLessonSyncProvider.RETAKES_FINISHED_TABLE, {
+                lessonid: lessonId,
                 retake: Number(retake),
-                pageId: Number(pageId),
+                pageid: Number(pageId),
                 timefinished: this.timeUtils.timestamp()
             });
         });
diff --git a/src/addon/mod/lesson/providers/lesson.ts b/src/addon/mod/lesson/providers/lesson.ts
index 529b332e4..64eac2a9f 100644
--- a/src/addon/mod/lesson/providers/lesson.ts
+++ b/src/addon/mod/lesson/providers/lesson.ts
@@ -148,12 +148,12 @@ export class AddonModLessonProvider {
     static LESSON_PAGE_ENDOFCLUSTER = 31;
 
     // Variables for database.
-    protected PASSWORD_TABLE = 'addon_mod_lesson_password';
+    static PASSWORD_TABLE = 'addon_mod_lesson_password';
     protected tablesSchema = {
-        name: this.PASSWORD_TABLE,
+        name: AddonModLessonProvider.PASSWORD_TABLE,
         columns: [
             {
-                name: 'lessonId',
+                name: 'lessonid',
                 type: 'INTEGER',
                 primaryKey: true
             },
@@ -2072,7 +2072,7 @@ export class AddonModLessonProvider {
      */
     getStoredPassword(lessonId: number, siteId?: string): Promise<string> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.PASSWORD_TABLE, {lessonId}).then((entry) => {
+            return site.getDb().getRecord(AddonModLessonProvider.PASSWORD_TABLE, {lessonid: lessonId}).then((entry) => {
                 return entry.password;
             });
         });
@@ -3169,7 +3169,7 @@ export class AddonModLessonProvider {
      */
     removeStoredPassword(lessonId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.PASSWORD_TABLE, {lessonId});
+            return site.getDb().deleteRecords(AddonModLessonProvider.PASSWORD_TABLE, {lessonid: lessonId});
         });
     }
 
@@ -3184,12 +3184,12 @@ export class AddonModLessonProvider {
     storePassword(lessonId: number, password: string, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
             const entry = {
-                lessonId: lessonId,
+                lessonid: lessonId,
                 password: password,
                 timemodified: Date.now()
             };
 
-            return site.getDb().insertRecord(this.PASSWORD_TABLE, entry);
+            return site.getDb().insertRecord(AddonModLessonProvider.PASSWORD_TABLE, entry);
         });
     }
 
diff --git a/src/addon/mod/page/providers/pluginfile-handler.ts b/src/addon/mod/page/providers/pluginfile-handler.ts
index 63719c389..4fa49fcdc 100644
--- a/src/addon/mod/page/providers/pluginfile-handler.ts
+++ b/src/addon/mod/page/providers/pluginfile-handler.ts
@@ -21,6 +21,7 @@ import { CorePluginFileHandler } from '@providers/plugin-file-delegate';
 @Injectable()
 export class AddonModPagePluginFileHandler implements CorePluginFileHandler {
     name = 'AddonModPagePluginFileHandler';
+    component = 'mod_page';
 
     /**
      * Return the RegExp to match the revision on pluginfile URLs.
diff --git a/src/addon/mod/quiz/accessrules/password/password.module.ts b/src/addon/mod/quiz/accessrules/password/password.module.ts
index bfb5b6d95..7c33fa616 100644
--- a/src/addon/mod/quiz/accessrules/password/password.module.ts
+++ b/src/addon/mod/quiz/accessrules/password/password.module.ts
@@ -20,6 +20,7 @@ import { CoreComponentsModule } from '@components/components.module';
 import { AddonModQuizAccessPasswordHandler } from './providers/handler';
 import { AddonModQuizAccessPasswordComponent } from './component/password';
 import { AddonModQuizAccessRuleDelegate } from '../../providers/access-rules-delegate';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 @NgModule({
     declarations: [
@@ -42,7 +43,14 @@ import { AddonModQuizAccessRuleDelegate } from '../../providers/access-rules-del
     ]
 })
 export class AddonModQuizAccessPasswordModule {
-    constructor(accessRuleDelegate: AddonModQuizAccessRuleDelegate, handler: AddonModQuizAccessPasswordHandler) {
+    constructor(accessRuleDelegate: AddonModQuizAccessRuleDelegate, handler: AddonModQuizAccessPasswordHandler,
+            updateManager: CoreUpdateManagerProvider) {
         accessRuleDelegate.registerHandler(handler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mod_quiz_access_password',
+            newName: AddonModQuizAccessPasswordHandler.PASSWORD_TABLE
+        });
     }
 }
diff --git a/src/addon/mod/quiz/accessrules/password/providers/handler.ts b/src/addon/mod/quiz/accessrules/password/providers/handler.ts
index 7280b2e16..eea3286b2 100644
--- a/src/addon/mod/quiz/accessrules/password/providers/handler.ts
+++ b/src/addon/mod/quiz/accessrules/password/providers/handler.ts
@@ -23,13 +23,10 @@ import { AddonModQuizAccessPasswordComponent } from '../component/password';
  */
 @Injectable()
 export class AddonModQuizAccessPasswordHandler implements AddonModQuizAccessRuleHandler {
-    name = 'AddonModQuizAccessPassword';
-    ruleName = 'quizaccess_password';
-
     // Variables for database.
-    protected PASSWORD_TABLE = 'mod_quiz_access_password';
+    static PASSWORD_TABLE = 'addon_mod_quiz_access_password';
     protected tableSchema = {
-        name: this.PASSWORD_TABLE,
+        name: AddonModQuizAccessPasswordHandler.PASSWORD_TABLE,
         columns: [
             {
                 name: 'id',
@@ -47,6 +44,9 @@ export class AddonModQuizAccessPasswordHandler implements AddonModQuizAccessRule
         ]
     };
 
+    name = 'AddonModQuizAccessPassword';
+    ruleName = 'quizaccess_password';
+
     constructor(private sitesProvider: CoreSitesProvider) {
         this.sitesProvider.createTableFromSchema(this.tableSchema);
     }
@@ -82,7 +82,7 @@ export class AddonModQuizAccessPasswordHandler implements AddonModQuizAccessRule
     protected getPasswordEntry(quizId: number, siteId?: string): Promise<any> {
 
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.PASSWORD_TABLE, {id: quizId});
+            return site.getDb().getRecord(AddonModQuizAccessPasswordHandler.PASSWORD_TABLE, {id: quizId});
         });
     }
 
@@ -174,7 +174,7 @@ export class AddonModQuizAccessPasswordHandler implements AddonModQuizAccessRule
     protected removePassword(quizId: number, siteId?: string): Promise<any> {
 
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.PASSWORD_TABLE, {id: quizId});
+            return site.getDb().deleteRecords(AddonModQuizAccessPasswordHandler.PASSWORD_TABLE, {id: quizId});
         });
     }
 
@@ -195,7 +195,7 @@ export class AddonModQuizAccessPasswordHandler implements AddonModQuizAccessRule
                 timemodified: Date.now()
             };
 
-            return site.getDb().insertRecord(this.PASSWORD_TABLE, entry);
+            return site.getDb().insertRecord(AddonModQuizAccessPasswordHandler.PASSWORD_TABLE, entry);
         });
     }
 }
diff --git a/src/addon/mod/quiz/providers/quiz-offline.ts b/src/addon/mod/quiz/providers/quiz-offline.ts
index 34507bd55..76f7a2631 100644
--- a/src/addon/mod/quiz/providers/quiz-offline.ts
+++ b/src/addon/mod/quiz/providers/quiz-offline.ts
@@ -32,10 +32,10 @@ export class AddonModQuizOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected ATTEMPTS_TABLE = 'addon_mod_quiz_attempts';
+    static ATTEMPTS_TABLE = 'addon_mod_quiz_attempts';
     protected tablesSchema = [
         {
-            name: this.ATTEMPTS_TABLE,
+            name: AddonModQuizOfflineProvider.ATTEMPTS_TABLE,
             columns: [
                 {
                     name: 'id', // Attempt ID.
@@ -141,7 +141,7 @@ export class AddonModQuizOfflineProvider {
      */
     getAllAttempts(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getAllRecords(this.ATTEMPTS_TABLE);
+            return db.getAllRecords(AddonModQuizOfflineProvider.ATTEMPTS_TABLE);
         });
     }
 
@@ -165,7 +165,7 @@ export class AddonModQuizOfflineProvider {
      */
     getAttemptById(attemptId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getRecord(this.ATTEMPTS_TABLE, {id: attemptId});
+            return db.getRecord(AddonModQuizOfflineProvider.ATTEMPTS_TABLE, {id: attemptId});
         });
     }
 
@@ -181,7 +181,7 @@ export class AddonModQuizOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecords(this.ATTEMPTS_TABLE, {quizid: quizId, userid: userId});
+            return site.getDb().getRecords(AddonModQuizOfflineProvider.ATTEMPTS_TABLE, {quizid: quizId, userid: userId});
         });
     }
 
@@ -251,7 +251,7 @@ export class AddonModQuizOfflineProvider {
             entry.timemodified = now;
             entry.finished = finish ? 1 : 0;
 
-            return db.insertRecord(this.ATTEMPTS_TABLE, entry);
+            return db.insertRecord(AddonModQuizOfflineProvider.ATTEMPTS_TABLE, entry);
         }).then(() => {
             // Attempt has been saved, now we need to save the answers.
             return this.saveAnswers(quiz, attempt, questions, data, now, siteId);
@@ -276,7 +276,7 @@ export class AddonModQuizOfflineProvider {
 
         // Remove the attempt.
         promises.push(this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.deleteRecords(this.ATTEMPTS_TABLE, {id: attemptId});
+            return db.deleteRecords(AddonModQuizOfflineProvider.ATTEMPTS_TABLE, {id: attemptId});
         }));
 
         return Promise.all(promises);
@@ -379,7 +379,7 @@ export class AddonModQuizOfflineProvider {
      */
     setAttemptCurrentPage(attemptId: number, page: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.updateRecords(this.ATTEMPTS_TABLE, {currentpage: page}, {id: attemptId});
+            return db.updateRecords(AddonModQuizOfflineProvider.ATTEMPTS_TABLE, {currentpage: page}, {id: attemptId});
         });
     }
 }
diff --git a/src/addon/mod/quiz/quiz.module.ts b/src/addon/mod/quiz/quiz.module.ts
index 0f5e2e8bc..e76c4776d 100644
--- a/src/addon/mod/quiz/quiz.module.ts
+++ b/src/addon/mod/quiz/quiz.module.ts
@@ -29,6 +29,7 @@ import { AddonModQuizIndexLinkHandler } from './providers/index-link-handler';
 import { AddonModQuizGradeLinkHandler } from './providers/grade-link-handler';
 import { AddonModQuizReviewLinkHandler } from './providers/review-link-handler';
 import { AddonModQuizComponentsModule } from './components/components.module';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // Access rules.
 import { AddonModQuizAccessDelayBetweenAttemptsModule } from './accessrules/delaybetweenattempts/delaybetweenattempts.module';
@@ -79,7 +80,7 @@ export class AddonModQuizModule {
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModQuizPrefetchHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModQuizSyncCronHandler, linksDelegate: CoreContentLinksDelegate,
             indexHandler: AddonModQuizIndexLinkHandler, gradeHandler: AddonModQuizGradeLinkHandler,
-            reviewHandler: AddonModQuizReviewLinkHandler) {
+            reviewHandler: AddonModQuizReviewLinkHandler, updateManager: CoreUpdateManagerProvider) {
 
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
@@ -87,5 +88,21 @@ export class AddonModQuizModule {
         linksDelegate.registerHandler(indexHandler);
         linksDelegate.registerHandler(gradeHandler);
         linksDelegate.registerHandler(reviewHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mod_quiz_attempts',
+            newName: AddonModQuizOfflineProvider.ATTEMPTS_TABLE,
+            fields: [
+                {
+                    name: 'quizAndUser',
+                    delete: true
+                },
+                {
+                    name: 'finished',
+                    type: 'boolean'
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/mod/resource/providers/pluginfile-handler.ts b/src/addon/mod/resource/providers/pluginfile-handler.ts
index daa3da78b..ecd7154f1 100644
--- a/src/addon/mod/resource/providers/pluginfile-handler.ts
+++ b/src/addon/mod/resource/providers/pluginfile-handler.ts
@@ -21,6 +21,7 @@ import { CorePluginFileHandler } from '@providers/plugin-file-delegate';
 @Injectable()
 export class AddonModResourcePluginFileHandler implements CorePluginFileHandler {
     name = 'AddonModResourcePluginFileHandler';
+    component = 'mod_resource';
 
     /**
      * Return the RegExp to match the revision on pluginfile URLs.
diff --git a/src/addon/mod/scorm/providers/pluginfile-handler.ts b/src/addon/mod/scorm/providers/pluginfile-handler.ts
index 6910b67b4..58e16d725 100644
--- a/src/addon/mod/scorm/providers/pluginfile-handler.ts
+++ b/src/addon/mod/scorm/providers/pluginfile-handler.ts
@@ -21,6 +21,7 @@ import { CorePluginFileHandler } from '@providers/plugin-file-delegate';
 @Injectable()
 export class AddonModScormPluginFileHandler implements CorePluginFileHandler {
     name = 'AddonModScormPluginFileHandler';
+    component = 'mod_scorm';
 
     /**
      * Return the RegExp to match the revision on pluginfile URLs.
@@ -32,7 +33,7 @@ export class AddonModScormPluginFileHandler implements CorePluginFileHandler {
         // Check filearea.
         if (args[2] == 'content') {
             // Component + Filearea + Revision
-            return new RegExp('/mod_resource/content/([0-9]+)/');
+            return new RegExp('/mod_scorm/content/([0-9]+)/');
         }
     }
 
diff --git a/src/addon/mod/scorm/providers/scorm-offline.ts b/src/addon/mod/scorm/providers/scorm-offline.ts
index 98842781b..910628d46 100644
--- a/src/addon/mod/scorm/providers/scorm-offline.ts
+++ b/src/addon/mod/scorm/providers/scorm-offline.ts
@@ -32,14 +32,14 @@ export class AddonModScormOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected ATTEMPTS_TABLE = 'addon_mod_scorm_offline_attempts';
-    protected TRACKS_TABLE = 'addon_mod_scorm_offline_scos_tracks';
+    static ATTEMPTS_TABLE = 'addon_mod_scorm_offline_attempts';
+    static TRACKS_TABLE = 'addon_mod_scorm_offline_scos_tracks';
     protected tablesSchema = [
         {
-            name: this.ATTEMPTS_TABLE,
+            name: AddonModScormOfflineProvider.ATTEMPTS_TABLE,
             columns: [
                 {
-                    name: 'scormId',
+                    name: 'scormid',
                     type: 'INTEGER',
                     notNull: true
                 },
@@ -49,12 +49,12 @@ export class AddonModScormOfflineProvider {
                     notNull: true
                 },
                 {
-                    name: 'userId',
+                    name: 'userid',
                     type: 'INTEGER',
                     notNull: true
                 },
                 {
-                    name: 'courseId',
+                    name: 'courseid',
                     type: 'INTEGER'
                 },
                 {
@@ -70,13 +70,13 @@ export class AddonModScormOfflineProvider {
                     type: 'TEXT'
                 },
             ],
-            primaryKeys: ['scormId', 'userId', 'attempt']
+            primaryKeys: ['scormid', 'userid', 'attempt']
         },
         {
-            name: this.TRACKS_TABLE,
+            name: AddonModScormOfflineProvider.TRACKS_TABLE,
             columns: [
                 {
-                    name: 'scormId',
+                    name: 'scormid',
                     type: 'INTEGER',
                     notNull: true
                 },
@@ -86,12 +86,12 @@ export class AddonModScormOfflineProvider {
                     notNull: true
                 },
                 {
-                    name: 'userId',
+                    name: 'userid',
                     type: 'INTEGER',
                     notNull: true
                 },
                 {
-                    name: 'scoId',
+                    name: 'scoid',
                     type: 'INTEGER',
                     notNull: true
                 },
@@ -113,7 +113,7 @@ export class AddonModScormOfflineProvider {
                     type: 'INTEGER'
                 },
             ],
-            primaryKeys: ['scormId', 'userId', 'attempt', 'scoId', 'element']
+            primaryKeys: ['scormid', 'userid', 'attempt', 'scoid', 'element']
         }
     ];
 
@@ -145,7 +145,9 @@ export class AddonModScormOfflineProvider {
             this.logger.debug('Change attempt number from ' + attempt + ' to ' + newAttempt + ' in SCORM ' + scormId);
 
             // Update the attempt number.
-            const db = site.getDb();
+            const db = site.getDb(),
+                currentAttemptConditions = {scormid: scormId, userid: userId, attempt: attempt},
+                newAttemptConditions = {scormid: scormId, userid: userId, attempt: newAttempt};
             let newData: any = {
                     attempt: newAttempt,
                     timemodified: this.timeUtils.timestamp()
@@ -154,7 +156,7 @@ export class AddonModScormOfflineProvider {
             // Block the SCORM so it can't be synced.
             this.syncProvider.blockOperation(AddonModScormProvider.COMPONENT, scormId, 'changeAttemptNumber', site.id);
 
-            return db.updateRecords(this.ATTEMPTS_TABLE, newData, {scormId, userId, attempt}).then(() => {
+            return db.updateRecords(AddonModScormOfflineProvider.ATTEMPTS_TABLE, newData, currentAttemptConditions).then(() => {
 
                 // Now update the attempt number of all the tracks and mark them as not synced.
                 newData = {
@@ -162,9 +164,11 @@ export class AddonModScormOfflineProvider {
                     synced: 0
                 };
 
-                return db.updateRecords(this.TRACKS_TABLE, newData, {scormId, userId, attempt}).catch((error) => {
+                return db.updateRecords(AddonModScormOfflineProvider.TRACKS_TABLE, newData, currentAttemptConditions)
+                        .catch((error) => {
                     // Failed to update the tracks, restore the old attempt number.
-                    return db.updateRecords(this.ATTEMPTS_TABLE, { attempt }, {scormId, userId, attempt: newAttempt}).then(() => {
+                    return db.updateRecords(AddonModScormOfflineProvider.ATTEMPTS_TABLE, { attempt: attempt },
+                            newAttemptConditions).then(() => {
                         return Promise.reject(error);
                     });
                 });
@@ -199,10 +203,10 @@ export class AddonModScormOfflineProvider {
             // Create attempt in DB.
             const db = site.getDb(),
                 entry: any = {
-                    scormId: scorm.id,
-                    userId: userId,
+                    scormid: scorm.id,
+                    userid: userId,
                     attempt: attempt,
-                    courseId: scorm.course,
+                    courseid: scorm.course,
                     timecreated: this.timeUtils.timestamp(),
                     timemodified: this.timeUtils.timestamp(),
                     snapshot: null
@@ -214,7 +218,7 @@ export class AddonModScormOfflineProvider {
                 entry.snapshot = JSON.stringify(this.removeDefaultData(snapshot));
             }
 
-            return db.insertRecord(this.ATTEMPTS_TABLE, entry).then(() => {
+            return db.insertRecord(AddonModScormOfflineProvider.ATTEMPTS_TABLE, entry).then(() => {
                 // Store all the data in userData.
                 const promises = [];
 
@@ -256,10 +260,12 @@ export class AddonModScormOfflineProvider {
                 db = site.getDb();
 
             // Delete the attempt.
-            promises.push(db.deleteRecords(this.ATTEMPTS_TABLE, {scormId, userId, attempt}));
+            promises.push(db.deleteRecords(AddonModScormOfflineProvider.ATTEMPTS_TABLE, {scormid: scormId, userid: userId,
+                    attempt: attempt}));
 
             // Delete all the tracks.
-            promises.push(db.deleteRecords(this.TRACKS_TABLE, {scormId, userId, attempt}));
+            promises.push(db.deleteRecords(AddonModScormOfflineProvider.TRACKS_TABLE, {scormid: scormId, userid: userId,
+                    attempt: attempt}));
 
             return Promise.all(promises);
         });
@@ -329,7 +335,7 @@ export class AddonModScormOfflineProvider {
      */
     getAllAttempts(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSiteDb(siteId).then((db) => {
-            return db.getAllRecords(this.ATTEMPTS_TABLE);
+            return db.getAllRecords(AddonModScormOfflineProvider.ATTEMPTS_TABLE);
         }).then((attempts) => {
             attempts.forEach((attempt) => {
                 attempt.snapshot = this.textUtils.parseJSON(attempt.snapshot);
@@ -352,11 +358,12 @@ export class AddonModScormOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecord(this.ATTEMPTS_TABLE, {scormId, userId, attempt}).then((entry) => {
-                entry.snapshot = this.textUtils.parseJSON(entry.snapshot);
+            return site.getDb().getRecord(AddonModScormOfflineProvider.ATTEMPTS_TABLE, {scormid: scormId, userid: userId,
+                    attempt: attempt});
+        }).then((entry) => {
+            entry.snapshot = this.textUtils.parseJSON(entry.snapshot);
 
-                return entry;
-            });
+            return entry;
         });
     }
 
@@ -389,7 +396,7 @@ export class AddonModScormOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecords(this.ATTEMPTS_TABLE, {scormId, userId});
+            return site.getDb().getRecords(AddonModScormOfflineProvider.ATTEMPTS_TABLE, {scormid: scormId, userid: userId});
         }).then((attempts) => {
             attempts.forEach((attempt) => {
                 attempt.snapshot = this.textUtils.parseJSON(attempt.snapshot);
@@ -454,8 +461,8 @@ export class AddonModScormOfflineProvider {
             userId = userId || site.getUserId();
 
             const conditions: any = {
-                scormId: scormId,
-                userId: userId,
+                scormid: scormId,
+                userid: userId,
                 attempt: attempt
             };
 
@@ -465,7 +472,7 @@ export class AddonModScormOfflineProvider {
                 conditions.synced = 1;
             }
 
-            return site.getDb().getRecords(this.TRACKS_TABLE, conditions);
+            return site.getDb().getRecords(AddonModScormOfflineProvider.TRACKS_TABLE, conditions);
         }).then((tracks) => {
             tracks.forEach((track) => {
                 track.value = this.textUtils.parseJSON(track.value);
@@ -513,7 +520,7 @@ export class AddonModScormOfflineProvider {
 
                 // Gather user data retrieved from DB, grouping it by scoid.
                 entries.forEach((entry) => {
-                    const scoId = entry.scoId;
+                    const scoId = entry.scoid;
 
                     if (!response[scoId]) {
                         // Initialize SCO.
@@ -690,9 +697,9 @@ export class AddonModScormOfflineProvider {
             value: any, synchronous?: boolean): boolean | Promise<any> {
 
         const entry = {
-            userId: userId,
-            scormId: scormId,
-            scoId: scoId,
+            userid: userId,
+            scormid: scormId,
+            scoid: scoId,
             attempt: attempt,
             element: element,
             value: typeof value == 'undefined' ? null : JSON.stringify(value),
@@ -702,11 +709,11 @@ export class AddonModScormOfflineProvider {
 
         if (synchronous) {
             // The insert operation is always asynchronous, always return true.
-            db.insertRecord(this.TRACKS_TABLE, entry);
+            db.insertRecord(AddonModScormOfflineProvider.TRACKS_TABLE, entry);
 
             return true;
         } else {
-            return db.insertRecord(this.TRACKS_TABLE, entry);
+            return db.insertRecord(AddonModScormOfflineProvider.TRACKS_TABLE, entry);
         }
     }
 
@@ -788,11 +795,11 @@ export class AddonModScormOfflineProvider {
 
             this.logger.debug('Mark SCO ' + scoId + ' as synced for attempt ' + attempt + ' in SCORM ' + scormId);
 
-            return site.getDb().updateRecords(this.TRACKS_TABLE, {synced: 1}, {
-                scormId: scormId,
-                userId: userId,
+            return site.getDb().updateRecords(AddonModScormOfflineProvider.TRACKS_TABLE, {synced: 1}, {
+                scormid: scormId,
+                userid: userId,
                 attempt: attempt,
-                scoId: scoId,
+                scoid: scoId,
                 synced: 0
             });
         });
@@ -914,7 +921,8 @@ export class AddonModScormOfflineProvider {
                 snapshot: JSON.stringify(this.removeDefaultData(userData))
             };
 
-            return site.getDb().updateRecords(this.ATTEMPTS_TABLE, newData, { scormId, userId, attempt });
+            return site.getDb().updateRecords(AddonModScormOfflineProvider.ATTEMPTS_TABLE, newData, { scormid: scormId,
+                    userid: userId, attempt: attempt });
         });
     }
 }
diff --git a/src/addon/mod/scorm/providers/scorm-sync.ts b/src/addon/mod/scorm/providers/scorm-sync.ts
index f7fc6428c..832508473 100644
--- a/src/addon/mod/scorm/providers/scorm-sync.ts
+++ b/src/addon/mod/scorm/providers/scorm-sync.ts
@@ -379,13 +379,13 @@ export class AddonModScormSyncProvider extends CoreSyncBaseProvider {
                 // We need to add the synced data to the snapshot.
                 return this.scormOfflineProvider.getScormStoredData(scormId, attempt, false, true, siteId).then((synced) => {
                     synced.forEach((entry) => {
-                        if (!data[entry.scoId]) {
-                            data[entry.scoId] = {
-                                scoid: entry.scoId,
+                        if (!data[entry.scoid]) {
+                            data[entry.scoid] = {
+                                scoid: entry.scoid,
                                 userdata: {}
                             };
                         }
-                        data[entry.scoId].userdata[entry.element] = entry.value;
+                        data[entry.scoid].userdata[entry.element] = entry.value;
                     });
 
                     return this.scormOfflineProvider.setAttemptSnapshot(scormId, attempt, data, siteId);
@@ -461,12 +461,12 @@ export class AddonModScormSyncProvider extends CoreSyncBaseProvider {
 
             // Get the IDs of all the SCORMs that have something to be synced.
             attempts.forEach((attempt) => {
-                if (ids.indexOf(attempt.scormId) == -1) {
-                    ids.push(attempt.scormId);
+                if (ids.indexOf(attempt.scormid) == -1) {
+                    ids.push(attempt.scormid);
 
                     scorms.push({
-                        id: attempt.scormId,
-                        courseId: attempt.courseId
+                        id: attempt.scormid,
+                        courseId: attempt.courseid
                     });
                 }
             });
@@ -517,11 +517,11 @@ export class AddonModScormSyncProvider extends CoreSyncBaseProvider {
             // Get data to send (only elements with dots like cmi.core.exit, in Mobile we store more data to make offline work).
             entries.forEach((entry) => {
                 if (entry.element.indexOf('.') > -1) {
-                    if (!scos[entry.scoId]) {
-                        scos[entry.scoId] = [];
+                    if (!scos[entry.scoid]) {
+                        scos[entry.scoid] = [];
                     }
 
-                    scos[entry.scoId].push({
+                    scos[entry.scoid].push({
                         element: entry.element,
                         value: entry.value
                     });
diff --git a/src/addon/mod/scorm/scorm.module.ts b/src/addon/mod/scorm/scorm.module.ts
index 11c0c6e12..ba1fda848 100644
--- a/src/addon/mod/scorm/scorm.module.ts
+++ b/src/addon/mod/scorm/scorm.module.ts
@@ -27,6 +27,7 @@ import { AddonModScormIndexLinkHandler } from './providers/index-link-handler';
 import { AddonModScormGradeLinkHandler } from './providers/grade-link-handler';
 import { AddonModScormSyncProvider } from './providers/scorm-sync';
 import { AddonModScormComponentsModule } from './components/components.module';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_SCORM_PROVIDERS: any[] = [
@@ -54,12 +55,49 @@ export class AddonModScormModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModScormModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModScormPrefetchHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModScormSyncCronHandler, linksDelegate: CoreContentLinksDelegate,
-            indexHandler: AddonModScormIndexLinkHandler, gradeHandler: AddonModScormGradeLinkHandler) {
+            indexHandler: AddonModScormIndexLinkHandler, gradeHandler: AddonModScormGradeLinkHandler,
+            updateManager: CoreUpdateManagerProvider) {
 
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
         cronDelegate.register(syncHandler);
         linksDelegate.registerHandler(indexHandler);
         linksDelegate.registerHandler(gradeHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTablesMigration([
+            {
+                name: 'mod_scorm_offline_attempts',
+                newName: AddonModScormOfflineProvider.ATTEMPTS_TABLE,
+                fields: [
+                    {
+                        name: 'snapshot',
+                        type: 'object'
+                    },
+                    {
+                        name: 'scormAndUser',
+                        delete: true
+                    }
+                ]
+            },
+            {
+                name: 'mod_scorm_offline_scos_tracks',
+                newName: AddonModScormOfflineProvider.TRACKS_TABLE,
+                fields: [
+                    {
+                        name: 'value',
+                        type: 'object'
+                    },
+                    {
+                        name: 'scormUserAttempt',
+                        delete: true
+                    },
+                    {
+                        name: 'scormUserAttemptSynced',
+                        delete: true
+                    }
+                ]
+            }
+        ]);
     }
 }
diff --git a/src/addon/mod/survey/providers/offline.ts b/src/addon/mod/survey/providers/offline.ts
index 07b2065fb..2a9faafa1 100644
--- a/src/addon/mod/survey/providers/offline.ts
+++ b/src/addon/mod/survey/providers/offline.ts
@@ -26,10 +26,10 @@ export class AddonModSurveyOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected SURVEY_TABLE = 'addon_mod_survey_answers';
+    static SURVEY_TABLE = 'addon_mod_survey_answers';
     protected tablesSchema = [
         {
-            name: this.SURVEY_TABLE,
+            name: AddonModSurveyOfflineProvider.SURVEY_TABLE,
             columns: [
                 {
                     name: 'surveyid',
@@ -77,7 +77,7 @@ export class AddonModSurveyOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().deleteRecords(this.SURVEY_TABLE, {surveyid: surveyId, userid: userId});
+            return site.getDb().deleteRecords(AddonModSurveyOfflineProvider.SURVEY_TABLE, {surveyid: surveyId, userid: userId});
         });
     }
 
@@ -89,7 +89,7 @@ export class AddonModSurveyOfflineProvider {
      */
     getAllData(siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getAllRecords(this.SURVEY_TABLE).then((entries) => {
+            return site.getDb().getAllRecords(AddonModSurveyOfflineProvider.SURVEY_TABLE).then((entries) => {
                 return entries.map((entry) => {
                     entry.answers = this.textUtils.parseJSON(entry.answers);
                 });
@@ -125,11 +125,11 @@ export class AddonModSurveyOfflineProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             userId = userId || site.getUserId();
 
-            return site.getDb().getRecord(this.SURVEY_TABLE, {surveyid: surveyId, userid: userId}).then((entry) => {
-                entry.answers = this.textUtils.parseJSON(entry.answers);
+            return site.getDb().getRecord(AddonModSurveyOfflineProvider.SURVEY_TABLE, {surveyid: surveyId, userid: userId});
+        }).then((entry) => {
+            entry.answers = this.textUtils.parseJSON(entry.answers);
 
-                return entry;
-            });
+            return entry;
         });
     }
 
@@ -171,7 +171,7 @@ export class AddonModSurveyOfflineProvider {
                 timecreated: new Date().getTime()
             };
 
-            return site.getDb().insertRecord(this.SURVEY_TABLE, entry);
+            return site.getDb().insertRecord(AddonModSurveyOfflineProvider.SURVEY_TABLE, entry);
         });
     }
 }
diff --git a/src/addon/mod/survey/survey.module.ts b/src/addon/mod/survey/survey.module.ts
index 69b7a52bc..0762e6154 100644
--- a/src/addon/mod/survey/survey.module.ts
+++ b/src/addon/mod/survey/survey.module.ts
@@ -26,6 +26,7 @@ import { AddonModSurveyPrefetchHandler } from './providers/prefetch-handler';
 import { AddonModSurveySyncProvider } from './providers/sync';
 import { AddonModSurveySyncCronHandler } from './providers/sync-cron-handler';
 import { AddonModSurveyOfflineProvider } from './providers/offline';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_SURVEY_PROVIDERS: any[] = [
@@ -52,10 +53,23 @@ export class AddonModSurveyModule {
     constructor(moduleDelegate: CoreCourseModuleDelegate, moduleHandler: AddonModSurveyModuleHandler,
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModSurveyPrefetchHandler,
             contentLinksDelegate: CoreContentLinksDelegate, linkHandler: AddonModSurveyLinkHandler,
-            cronDelegate: CoreCronDelegate, syncHandler: AddonModSurveySyncCronHandler) {
+            cronDelegate: CoreCronDelegate, syncHandler: AddonModSurveySyncCronHandler, updateManager: CoreUpdateManagerProvider) {
+
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
         contentLinksDelegate.registerHandler(linkHandler);
         cronDelegate.register(syncHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_mod_survey_answers',
+            newName: AddonModSurveyOfflineProvider.SURVEY_TABLE,
+            fields: [
+                {
+                    name: 'answers',
+                    type: 'object'
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/mod/wiki/providers/wiki-offline.ts b/src/addon/mod/wiki/providers/wiki-offline.ts
index 7ea26138f..6ae9935d4 100644
--- a/src/addon/mod/wiki/providers/wiki-offline.ts
+++ b/src/addon/mod/wiki/providers/wiki-offline.ts
@@ -25,10 +25,10 @@ export class AddonModWikiOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected NEW_PAGES_TABLE = 'addon_mod_wiki_new_pages_store';
+    static NEW_PAGES_TABLE = 'addon_mod_wiki_new_pages_store';
     protected tablesSchema = [
         {
-            name: this.NEW_PAGES_TABLE,
+            name: AddonModWikiOfflineProvider.NEW_PAGES_TABLE,
             columns: [
                 {
                     name: 'wikiid',
@@ -117,7 +117,7 @@ export class AddonModWikiOfflineProvider {
             userId = this.convertToPositiveNumber(userId);
             groupId = this.convertToPositiveNumber(groupId);
 
-            return site.getDb().deleteRecords(this.NEW_PAGES_TABLE, {
+            return site.getDb().deleteRecords(AddonModWikiOfflineProvider.NEW_PAGES_TABLE, {
                 subwikiid: subwikiId,
                 wikiid: wikiId,
                 userid: userId,
@@ -135,7 +135,7 @@ export class AddonModWikiOfflineProvider {
      */
     getAllNewPages(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getAllRecords(this.NEW_PAGES_TABLE);
+            return site.getDb().getAllRecords(AddonModWikiOfflineProvider.NEW_PAGES_TABLE);
         });
     }
 
@@ -160,7 +160,7 @@ export class AddonModWikiOfflineProvider {
             userId = this.convertToPositiveNumber(userId);
             groupId = this.convertToPositiveNumber(groupId);
 
-            return site.getDb().getRecord(this.NEW_PAGES_TABLE, {
+            return site.getDb().getRecord(AddonModWikiOfflineProvider.NEW_PAGES_TABLE, {
                 subwikiid: subwikiId,
                 wikiid: wikiId,
                 userid: userId,
@@ -188,7 +188,7 @@ export class AddonModWikiOfflineProvider {
             userId = this.convertToPositiveNumber(userId);
             groupId = this.convertToPositiveNumber(groupId);
 
-            return site.getDb().getRecords(this.NEW_PAGES_TABLE, {
+            return site.getDb().getRecords(AddonModWikiOfflineProvider.NEW_PAGES_TABLE, {
                 subwikiid: subwikiId,
                 wikiid: wikiId,
                 userid: userId,
@@ -247,10 +247,10 @@ export class AddonModWikiOfflineProvider {
                     contentformat: 'html',
                     timecreated: now,
                     timemodified: now,
-                    caneditpage: true
+                    caneditpage: 1
                 };
 
-            return site.getDb().insertRecord(this.NEW_PAGES_TABLE, entry);
+            return site.getDb().insertRecord(AddonModWikiOfflineProvider.NEW_PAGES_TABLE, entry);
         });
     }
 
diff --git a/src/addon/mod/wiki/wiki.module.ts b/src/addon/mod/wiki/wiki.module.ts
index 8c9b4a2f1..c62188863 100644
--- a/src/addon/mod/wiki/wiki.module.ts
+++ b/src/addon/mod/wiki/wiki.module.ts
@@ -28,6 +28,7 @@ import { AddonModWikiIndexLinkHandler } from './providers/index-link-handler';
 import { AddonModWikiPageOrMapLinkHandler } from './providers/page-or-map-link-handler';
 import { AddonModWikiCreateLinkHandler } from './providers/create-link-handler';
 import { AddonModWikiEditLinkHandler } from './providers/edit-link-handler';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_MOD_WIKI_PROVIDERS: any[] = [
@@ -57,7 +58,8 @@ export class AddonModWikiModule {
             prefetchDelegate: CoreCourseModulePrefetchDelegate, prefetchHandler: AddonModWikiPrefetchHandler,
             cronDelegate: CoreCronDelegate, syncHandler: AddonModWikiSyncCronHandler, linksDelegate: CoreContentLinksDelegate,
             indexHandler: AddonModWikiIndexLinkHandler, pageOrMapHandler: AddonModWikiPageOrMapLinkHandler,
-            createHandler: AddonModWikiCreateLinkHandler, editHandler: AddonModWikiEditLinkHandler) {
+            createHandler: AddonModWikiCreateLinkHandler, editHandler: AddonModWikiEditLinkHandler,
+            updateManager: CoreUpdateManagerProvider) {
 
         moduleDelegate.registerHandler(moduleHandler);
         prefetchDelegate.registerHandler(prefetchHandler);
@@ -66,5 +68,21 @@ export class AddonModWikiModule {
         linksDelegate.registerHandler(pageOrMapHandler);
         linksDelegate.registerHandler(createHandler);
         linksDelegate.registerHandler(editHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_mod_wiki_new_pages_store',
+            newName: AddonModWikiOfflineProvider.NEW_PAGES_TABLE,
+            fields: [
+                {
+                    name: 'subwikiWikiUserGroup',
+                    delete: true
+                },
+                {
+                    name: 'caneditpage',
+                    type: 'boolean'
+                }
+            ]
+        });
     }
 }
diff --git a/src/addon/notes/notes.module.ts b/src/addon/notes/notes.module.ts
index bcd775301..259c7cbf5 100644
--- a/src/addon/notes/notes.module.ts
+++ b/src/addon/notes/notes.module.ts
@@ -23,6 +23,7 @@ import { AddonNotesComponentsModule } from './components/components.module';
 import { CoreCourseOptionsDelegate } from '@core/course/providers/options-delegate';
 import { CoreCronDelegate } from '@providers/cron';
 import { CoreUserDelegate } from '@core/user/providers/user-delegate';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_NOTES_PROVIDERS: any[] = [
@@ -46,10 +47,17 @@ export const ADDON_NOTES_PROVIDERS: any[] = [
 export class AddonNotesModule {
     constructor(courseOptionsDelegate: CoreCourseOptionsDelegate, courseOptionHandler: AddonNotesCourseOptionHandler,
             userDelegate: CoreUserDelegate, userHandler: AddonNotesUserHandler,
-            cronDelegate: CoreCronDelegate, syncHandler: AddonNotesSyncCronHandler) {
+            cronDelegate: CoreCronDelegate, syncHandler: AddonNotesSyncCronHandler, updateManager: CoreUpdateManagerProvider) {
+
         // Register handlers.
         courseOptionsDelegate.registerHandler(courseOptionHandler);
         userDelegate.registerHandler(userHandler);
         cronDelegate.register(syncHandler);
+
+        // Allow migrating the tables from the old app to the new schema.
+        updateManager.registerSiteTableMigration({
+            name: 'mma_notes_offline_notes',
+            newName: AddonNotesOfflineProvider.NOTES_TABLE
+        });
     }
 }
diff --git a/src/addon/notes/providers/notes-offline.ts b/src/addon/notes/providers/notes-offline.ts
index 597458ef8..b75a69067 100644
--- a/src/addon/notes/providers/notes-offline.ts
+++ b/src/addon/notes/providers/notes-offline.ts
@@ -25,10 +25,10 @@ export class AddonNotesOfflineProvider {
     protected logger;
 
     // Variables for database.
-    protected NOTES_TABLE = 'addon_notes_offline_notes';
+    static NOTES_TABLE = 'addon_notes_offline_notes';
     protected tablesSchema = [
         {
-            name: this.NOTES_TABLE,
+            name: AddonNotesOfflineProvider.NOTES_TABLE,
             columns: [
                 {
                     name: 'userid',
@@ -79,7 +79,7 @@ export class AddonNotesOfflineProvider {
      */
     deleteNote(userId: number, content: string, timecreated: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.NOTES_TABLE, {
+            return site.getDb().deleteRecords(AddonNotesOfflineProvider.NOTES_TABLE, {
                 userid: userId,
                 content: content,
                 created: timecreated
@@ -95,7 +95,7 @@ export class AddonNotesOfflineProvider {
      */
     getAllNotes(siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.NOTES_TABLE);
+            return site.getDb().getRecords(AddonNotesOfflineProvider.NOTES_TABLE);
         });
     }
 
@@ -110,7 +110,7 @@ export class AddonNotesOfflineProvider {
      */
     getNote(userId: number, content: string, timecreated: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.NOTES_TABLE, {
+            return site.getDb().getRecord(AddonNotesOfflineProvider.NOTES_TABLE, {
                 userid: userId,
                 content: content,
                 created: timecreated
@@ -127,7 +127,7 @@ export class AddonNotesOfflineProvider {
      */
     getNotesForCourse(courseId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.NOTES_TABLE, {courseid: courseId});
+            return site.getDb().getRecords(AddonNotesOfflineProvider.NOTES_TABLE, {courseid: courseId});
         });
     }
 
@@ -140,7 +140,7 @@ export class AddonNotesOfflineProvider {
      */
     getNotesForUser(userId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.NOTES_TABLE, {userid: userId});
+            return site.getDb().getRecords(AddonNotesOfflineProvider.NOTES_TABLE, {userid: userId});
         });
     }
 
@@ -153,7 +153,7 @@ export class AddonNotesOfflineProvider {
      */
     getNotesWithPublishState(state: string, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.NOTES_TABLE, {publishstate: state});
+            return site.getDb().getRecords(AddonNotesOfflineProvider.NOTES_TABLE, {publishstate: state});
         });
     }
 
@@ -219,7 +219,7 @@ export class AddonNotesOfflineProvider {
                 lastmodified: now
             };
 
-            return site.getDb().insertRecord(this.NOTES_TABLE, data).then(() => {
+            return site.getDb().insertRecord(AddonNotesOfflineProvider.NOTES_TABLE, data).then(() => {
                 return data;
             });
         });
diff --git a/src/addon/notifications/pages/settings/settings.ts b/src/addon/notifications/pages/settings/settings.ts
index cf1d19ee3..ed4cabc45 100644
--- a/src/addon/notifications/pages/settings/settings.ts
+++ b/src/addon/notifications/pages/settings/settings.ts
@@ -58,7 +58,7 @@ export class AddonNotificationsSettingsPage implements OnDestroy {
         this.canChangeSound = localNotificationsProvider.isAvailable() && !appProvider.isDesktop();
         if (this.canChangeSound) {
             configProvider.get(CoreConstants.SETTINGS_NOTIFICATION_SOUND, true).then((enabled) => {
-                this.notificationSound = enabled;
+                this.notificationSound = !!enabled;
             });
         }
     }
@@ -245,7 +245,7 @@ export class AddonNotificationsSettingsPage implements OnDestroy {
      * @param {enabled} enabled True to enable the notification sound, false to disable it.
      */
     changeNotificationSound(enabled: boolean): void {
-        this.configProvider.set(CoreConstants.SETTINGS_NOTIFICATION_SOUND, enabled).finally(() => {
+        this.configProvider.set(CoreConstants.SETTINGS_NOTIFICATION_SOUND, enabled ? 1 : 0).finally(() => {
             const siteId = this.sitesProvider.getCurrentSiteId();
             this.eventsProvider.trigger(CoreEventsProvider.NOTIFICATION_SOUND_CHANGED, {enabled}, siteId);
             this.localNotificationsProvider.rescheduleAll();
diff --git a/src/addon/pushnotifications/providers/pushnotifications.ts b/src/addon/pushnotifications/providers/pushnotifications.ts
index 74bb4ec75..444a7b1c9 100644
--- a/src/addon/pushnotifications/providers/pushnotifications.ts
+++ b/src/addon/pushnotifications/providers/pushnotifications.ts
@@ -33,17 +33,16 @@ import { CoreConfigConstants } from '../../../configconstants';
  */
 @Injectable()
 export class AddonPushNotificationsProvider {
-
     protected logger;
     protected pushID: string;
     protected appDB: any;
     static COMPONENT = 'AddonPushNotificationsProvider';
 
     // Variables for database.
-    protected BADGE_TABLE = 'addon_pushnotifications_badge';
+    static BADGE_TABLE = 'addon_pushnotifications_badge';
     protected tablesSchema = [
         {
-            name: this.BADGE_TABLE,
+            name: AddonPushNotificationsProvider.BADGE_TABLE,
             columns: [
                 {
                     name: 'siteid',
@@ -79,7 +78,7 @@ export class AddonPushNotificationsProvider {
      * @return {Promise<any>}  Resolved when done.
      */
     cleanSiteCounters(siteId: string): Promise<any> {
-        return this.appDB.deleteRecords(this.BADGE_TABLE, {siteid: siteId} ).finally(() => {
+        return this.appDB.deleteRecords(AddonPushNotificationsProvider.BADGE_TABLE, {siteid: siteId} ).finally(() => {
             this.updateAppCounter();
         });
     }
@@ -383,7 +382,7 @@ export class AddonPushNotificationsProvider {
      * @return {Promise<any>}         Promise resolved with the stored badge counter for the addon or site or 0 if none.
      */
     protected getAddonBadge(siteId?: string, addon: string = 'site'): Promise<any> {
-        return this.appDB.getRecord(this.BADGE_TABLE, {siteid: siteId, addon: addon}).then((entry) => {
+        return this.appDB.getRecord(AddonPushNotificationsProvider.BADGE_TABLE, {siteid: siteId, addon: addon}).then((entry) => {
              return (entry && entry.number) || 0;
         }).catch(() => {
             return 0;
@@ -407,7 +406,7 @@ export class AddonPushNotificationsProvider {
             number: value
         };
 
-        return this.appDB.insertRecord(this.BADGE_TABLE, entry).then(() => {
+        return this.appDB.insertRecord(AddonPushNotificationsProvider.BADGE_TABLE, entry).then(() => {
             return value;
         });
     }
diff --git a/src/addon/pushnotifications/pushnotifications.module.ts b/src/addon/pushnotifications/pushnotifications.module.ts
index 6c94bec97..a212c0c80 100644
--- a/src/addon/pushnotifications/pushnotifications.module.ts
+++ b/src/addon/pushnotifications/pushnotifications.module.ts
@@ -19,6 +19,7 @@ import { AddonPushNotificationsDelegate } from './providers/delegate';
 import { CoreEventsProvider } from '@providers/events';
 import { CoreLoggerProvider } from '@providers/logger';
 import { CoreLocalNotificationsProvider } from '@providers/local-notifications';
+import { CoreUpdateManagerProvider } from '@providers/update-manager';
 
 // List of providers (without handlers).
 export const ADDON_PUSHNOTIFICATIONS_PROVIDERS: any[] = [
@@ -35,7 +36,8 @@ export const ADDON_PUSHNOTIFICATIONS_PROVIDERS: any[] = [
 })
 export class AddonPushNotificationsModule {
     constructor(platform: Platform, pushNotificationsProvider: AddonPushNotificationsProvider, eventsProvider: CoreEventsProvider,
-            localNotificationsProvider: CoreLocalNotificationsProvider, loggerProvider: CoreLoggerProvider) {
+            localNotificationsProvider: CoreLocalNotificationsProvider, loggerProvider: CoreLoggerProvider,
+            updateManager: CoreUpdateManagerProvider) {
 
         const logger = loggerProvider.getInstance('AddonPushNotificationsModule');
 
@@ -66,5 +68,17 @@ export class AddonPushNotificationsModule {
         // Listen for local notification clicks (generated by the app).
         localNotificationsProvider.registerClick(AddonPushNotificationsProvider.COMPONENT,
             pushNotificationsProvider.notificationClicked);
+
+        // Allow migrating the table from the old app to the new schema.
+        updateManager.registerAppTableMigration({
+            name: 'mma_pushnotifications_badge',
+            newName: AddonPushNotificationsProvider.BADGE_TABLE,
+            fields: [
+                {
+                    name: 'siteid',
+                    newName: 'siteId'
+                }
+            ]
+        });
     }
 }
diff --git a/src/assets/ydn.db-dev.js b/src/assets/ydn.db-dev.js
new file mode 100755
index 000000000..d9a1b3958
--- /dev/null
+++ b/src/assets/ydn.db-dev.js
@@ -0,0 +1,365 @@
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+else if("function"==b&&"undefined"==typeof a.call)return"object";return b}function u(a){return"array"==ca(a)}function v(a){var b=ca(a);return"array"==b||"object"==b&&"number"==typeof a.length}function w(a){return"string"==typeof a}function da(a){return"boolean"==typeof a}function ea(a){return"number"==typeof a}function fa(a){return"function"==ca(a)}function y(a){var b=typeof a;return"object"==b&&null!=a||"function"==b}var ga="closure_uid_"+(1E9*Math.random()>>>0),ha=0;
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+ Portions of this code are from MochiKit, received by
+ The Closure Authors under the MIT license. All other code is Copyright
+ 2005-2009 The Closure Authors. All Rights Reserved.
+*/
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+Df.prototype.toJSON=function(){var a=lb(this.stores,function(a){return a.toJSON()}),b={};b.stores=a;t(this.version)&&(b.version=this.version);return b};Df.prototype.b=!1;Df.prototype.a=function(){return!1};function Oe(a){return lb(a.stores,function(a){return a.getName()})}Df.prototype.count=function(){return this.stores.length};function X(a,b){return nb(a.stores,function(a){return a.getName()==b})}function Je(a,b){return mb(a.stores,function(a){return a.getName()==b})}
+function Ef(a,b,c,d){if(!b||a.stores.length!=b.stores.length)return"Number of store: "+a.stores.length+" vs "+b.stores.length;for(var e=0;e<a.stores.length;e++){var f=X(b,a.stores[e].getName());if(f){c&&(f=xf(f,a.stores[e]));if(d)for(var g=f,h=a.stores[e],k=0;k<h.a.length;k++){var m=h.a[k];Pe(g,m.getName())||"BLOB"!=m.type||(m=new jf(m.keyPath,m.type,m.unique,m.multiEntry,m.getName()),g.a.push(m))}f=De(a.stores[e],f);if(0<f.length)return'store: "'+a.stores[e].getName()+'" '+f}else return'missing object store "'+
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+ Copyright 2012 YDN Authors, Yathit. All Rights Reserved.
+ Licensed under the Apache License, Version 2.0 (the "License");.
+*/
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+typeof a+" found");}else throw new C("too many arguments");var d=this.db.open(function(c){var f=c.aa();if(w(a))$c(f,a,b);else if(u(a))for(var g=0;g<a.length;g++)$c(f,a[g],b[g]);else if(y(a))for(g in a)a.hasOwnProperty(g)&&(f[g]=a[g]);zb(d,c.update(f))},c,M,this);return d};l.open=function(a,b){return this.db.open(a,oi(this),M,b)};l.count=function(){return ii(this.a)?this.a.f?this.db.count(hi(this.a)):this.db.count(this.a.c.getName(),ki(this.a),this.a.a):this.db.count(this.a.c.getName(),this.a.a)};
+l.clear=function(){return ii(this.a)?this.db.clear(this.a.c.getName(),ki(this.a),this.a.a):this.db.clear(this.a.c.getName(),this.a.a)};l.ba=function(a){a=a.nb().concat(this.nb());return new li(this.db,this.b,this.type,a)};
+Rf.prototype.M=function(a,b,c,d,e){if(!w(a))throw new TypeError('store name "'+a+'"');if(!Je(this.a,a))throw new C('Store "'+a+'" not found.');var f=null;if(t(b)){if(!t(c))throw new C("boundary value must be defined.");f=Yc(b,c,d,e)}else if(t(d))throw new C("second boundary must not be defined.");a=new fi(X(this.a,a),f);return new $(this.c,this.a,null,a)};
+Ze.prototype.M=function(a,b,c,d,e){if(!w(a))throw new TypeError('store name "'+a+'"');if(!Je(this.b,a))throw new C('Store "'+a+'" not found.');var f=null;if(t(b)){if(!t(c))throw new C("boundary value must be defined.");f=Yc(b,c,d,e)}else if(t(d))throw new C("second boundary must not be defined.");a=new fi(X(this.b,a),f);return new $(this,this.b,null,a)};G("ydn.db.query.ConjunctionCursor");$.prototype.copy=$.prototype.ic;$.prototype.count=$.prototype.count;$.prototype.list=$.prototype.jc;$.prototype.order=$.prototype.P;$.prototype.patch=$.prototype.Yb;$.prototype.reverse=$.prototype.reverse;$.prototype.unique=$.prototype.unique;$.prototype.where=$.prototype.n;Rf.prototype.from=Rf.prototype.M;Ze.prototype.from=Ze.prototype.M;gh.prototype.executeSql=gh.prototype.executeSql;fh.prototype.executeSql=fh.prototype.executeSql;Pf.prototype.addEventListener=Pf.prototype.addEventListener;Pf.prototype.removeEventListener=Pf.prototype.removeEventListener;function pi(){this.a=ma()}var qi=new pi;pi.prototype.get=function(){return this.a};function ri(a){this.d=a||"";this.f=qi}ri.prototype.a=!0;ri.prototype.b=!1;function si(a){a=new Date(a.e);return ti(a.getFullYear()-2E3)+ti(a.getMonth()+1)+ti(a.getDate())+" "+ti(a.getHours())+":"+ti(a.getMinutes())+":"+ti(a.getSeconds())+"."+ti(Math.floor(a.getMilliseconds()/10))}function ti(a){return 10>a?"0"+a:String(a)}function ui(a,b){var c=(a.e-b)/1E3,d=c.toFixed(3),e=0;if(1>c)e=2;else for(;100>c;)e++,c*=10;for(;0<e--;)d=" "+d;return d}function vi(a){ri.call(this,a)}z(vi,ri);vi.prototype.b=!0;
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+wi.prototype.c=function(a){var b=[];b.push(this.d," ");this.a&&b.push("[",si(a),"] ");b.push("[",ui(a,this.f.get()),"s] ");b.push("[",a.c,"] ");b.push(a.d);this.b&&a.b&&b.push("\n",a.a);b.push("\n");return b.join("")};function xi(){this.f=ka(this.e,this);this.a=new wi;this.a.a=!1;this.b=this.a.b=!1;this.c="";this.d={}}xi.prototype.e=function(a){if(!this.d[a.c]){var b=this.a.c(a),c=yi;if(c)switch(a.f){case wc:zi(c,"info",b);break;case xc:zi(c,"error",b);break;case yc:zi(c,"warn",b);break;default:zi(c,"debug",b)}else window.opera?window.opera.postError(b):this.c+=b}};var yi=window.console;function zi(a,b,c){if(a[b])a[b](c);else a.log(c)};var Ai=!cc||cc&&9<=nc;!dc&&!cc||cc&&cc&&9<=nc||dc&&lc("1.9.1");cc&&lc("9");function Bi(a,b){Mb(b,function(b,d){"style"==d?a.style.cssText=b:"class"==d?a.className=b:"for"==d?a.htmlFor=b:d in Ci?a.setAttribute(Ci[d],b):0==d.lastIndexOf("aria-",0)||0==d.lastIndexOf("data-",0)?a.setAttribute(d,b):a[d]=b})}var Ci={cellpadding:"cellPadding",cellspacing:"cellSpacing",colspan:"colSpan",frameborder:"frameBorder",height:"height",maxlength:"maxLength",role:"role",rowspan:"rowSpan",type:"type",usemap:"useMap",valign:"vAlign",width:"width"};
+function Di(a,b,c){function d(c){c&&b.appendChild(w(c)?a.createTextNode(c):c)}for(var e=2;e<c.length;e++){var f=c[e];!v(f)||y(f)&&0<f.nodeType?d(f):kb(Ei(f)?sb(f):f,d)}}function Ei(a){if(a&&"number"==typeof a.length){if(y(a))return"function"==typeof a.item||"string"==typeof a.item;if(fa(a))return"function"==typeof a.item}return!1}function Fi(a){this.a=a||s.document||document}
+function Gi(a,b){var c;c=a.a;var d=b&&"*"!=b?b.toUpperCase():"";c.querySelectorAll&&c.querySelector&&d?c=c.querySelectorAll(d+""):c=c.getElementsByTagName(d||"*");return c}
+Fi.prototype.b=function(a,b,c){var d=this.a,e=arguments,f=e[0],g=e[1];if(!Ai&&g&&(g.name||g.type)){f=["<",f];g.name&&f.push(' name="',va(g.name),'"');if(g.type){f.push(' type="',va(g.type),'"');var h={};Pb(h,g);delete h.type;g=h}f.push(">");f=f.join("")}f=d.createElement(f);g&&(w(g)?f.className=g:u(g)?f.className=g.join(" "):Bi(f,g));2<e.length&&Di(d,f,e);return f};
+Fi.prototype.contains=function(a,b){if(a.contains&&1==b.nodeType)return a==b||a.contains(b);if("undefined"!=typeof a.compareDocumentPosition)return a==b||Boolean(a.compareDocumentPosition(b)&16);for(;b&&a!=b;)b=b.parentNode;return b==a};function Hi(a){this.f=ka(this.e,this);this.b=new vi;this.c=this.b.a=!1;this.a=a;this.d=this.a.ownerDocument||this.a.document;a=(a=this.a)?new Fi(9==a.nodeType?a:a.ownerDocument||a.document):ra||(ra=new Fi);var b=null,c=a.a;cc&&c.createStyleSheet?(a=b=c.createStyleSheet(),cc&&t(a.cssText)?a.cssText=".dbg-sev{color:#F00}.dbg-w{color:#C40}.dbg-sh{font-weight:bold;color:#000}.dbg-i{color:#444}.dbg-f{color:#999}.dbg-ev{color:#0A0}.dbg-m{color:#990}.logmsg{border-bottom:1px solid #CCC;padding:2px}.logsep{background-color: #8C8;}.logdiv{border:1px solid #CCC;background-color:#FCFCFC;font:medium monospace}":
+a.innerHTML=".dbg-sev{color:#F00}.dbg-w{color:#C40}.dbg-sh{font-weight:bold;color:#000}.dbg-i{color:#444}.dbg-f{color:#999}.dbg-ev{color:#0A0}.dbg-m{color:#990}.logmsg{border-bottom:1px solid #CCC;padding:2px}.logsep{background-color: #8C8;}.logdiv{border:1px solid #CCC;background-color:#FCFCFC;font:medium monospace}"):(c=Gi(a,"head")[0],c||(b=Gi(a,"body")[0],c=a.b("head"),b.parentNode.insertBefore(c,b)),a=b=a.b("style"),cc&&t(a.cssText)?a.cssText=".dbg-sev{color:#F00}.dbg-w{color:#C40}.dbg-sh{font-weight:bold;color:#000}.dbg-i{color:#444}.dbg-f{color:#999}.dbg-ev{color:#0A0}.dbg-m{color:#990}.logmsg{border-bottom:1px solid #CCC;padding:2px}.logsep{background-color: #8C8;}.logdiv{border:1px solid #CCC;background-color:#FCFCFC;font:medium monospace}":
+a.innerHTML=".dbg-sev{color:#F00}.dbg-w{color:#C40}.dbg-sh{font-weight:bold;color:#000}.dbg-i{color:#444}.dbg-f{color:#999}.dbg-ev{color:#0A0}.dbg-m{color:#990}.logmsg{border-bottom:1px solid #CCC;padding:2px}.logsep{background-color: #8C8;}.logdiv{border:1px solid #CCC;background-color:#FCFCFC;font:medium monospace}",c.appendChild(b));this.a.className+=" logdiv"}
+Hi.prototype.e=function(a){var b=100>=this.a.scrollHeight-this.a.scrollTop-this.a.clientHeight,c=this.d.createElement("div");c.className="logmsg";c.innerHTML=this.b.c(a);this.a.appendChild(c);b&&(this.a.scrollTop=this.a.scrollHeight)};Hi.prototype.clear=function(){this.a.innerHTML=""};var Ii=null,Ji=null;G("ydn.debug");na("ydn.debug.log",function(a,b,c){if(ea(b))b=new vc("log",b);else if(w(b)){b=b.toUpperCase();if(!Fc){Fc={};for(var d=0,e;e=Ec[d];d++)Fc[e.value]=e,Fc[e.name]=e}b=Fc[b]||null}else b=Bc;G(a||"ydn").b=b;t(c)?Ji||(a=Ji=new Hi(c),!0!=a.c&&(c=Kc(),b=a.f,c.a||(c.a=[]),c.a.push(b),a.c=!0),Kc().b=yc):Ii||Ji||(a=Ii=new xi,!0!=a.b&&(c=Kc(),b=a.f,c.a||(c.a=[]),c.a.push(b),a.b=!0),Kc().b=yc)});na("ydn.db.Storage",$h);})();
+
+                //# sourceMappingURL=ydn.db-dev.js.map
+            
\ No newline at end of file
diff --git a/src/classes/site.ts b/src/classes/site.ts
index 549e4dcb9..9f380aa46 100644
--- a/src/classes/site.ts
+++ b/src/classes/site.ts
@@ -578,6 +578,8 @@ export class CoreSite {
         data.moodlewssettingfilter = preSets.filter === false ? false : true;
         data.moodlewssettingfileurl = preSets.rewriteurls === false ? false : true;
 
+        const originalData = data;
+
         // Convert the values to string before starting the cache process.
         try {
             data = this.wsProvider.convertValuesToString(data, wsPreSets.cleanUnicode);
@@ -586,7 +588,7 @@ export class CoreSite {
             return Promise.reject(this.utils.createFakeWSError('core.unicodenotsupportedcleanerror', true));
         }
 
-        return this.getFromCache(method, data, preSets).catch(() => {
+        return this.getFromCache(method, data, preSets, false, originalData).catch(() => {
             // Do not pass those options to the core WS factory.
             return this.wsProvider.call(method, data, wsPreSets).then((response) => {
                 if (preSets.saveToCache) {
@@ -666,7 +668,7 @@ export class CoreSite {
                 preSets.omitExpires = true;
                 preSets.getFromCache = true;
 
-                return this.getFromCache(method, data, preSets, true).catch(() => {
+                return this.getFromCache(method, data, preSets, true, originalData).catch(() => {
                     return Promise.reject(error);
                 });
             });
@@ -711,16 +713,29 @@ export class CoreSite {
         return <string> Md5.hashAsciiStr(method + ':' + this.utils.sortAndStringify(data));
     }
 
+    /**
+     * Get the cache ID used in Ionic 1 version of the app.
+     *
+     * @param {string} method The WebService method.
+     * @param {any} data Arguments to pass to the method.
+     * @return {string} Cache ID.
+     */
+    protected getCacheOldId(method: string, data: any): string {
+        return <string> Md5.hashAsciiStr(method + ':' +  JSON.stringify(data));
+    }
+
     /**
      * Get a WS response from cache.
      *
      * @param {string} method The WebService method to be called.
      * @param {any} data Arguments to pass to the method.
      * @param {CoreSiteWSPreSets} preSets Extra options.
-     * @param {boolean} emergency Whether it's an "emergency" cache call (WS call failed).
+     * @param {boolean} [emergency] Whether it's an "emergency" cache call (WS call failed).
+     * @param {any} [originalData] Arguments to pass to the method before being converted to strings.
      * @return {Promise<any>} Promise resolved with the WS response.
      */
-    protected getFromCache(method: string, data: any, preSets: CoreSiteWSPreSets, emergency?: boolean): Promise<any> {
+    protected getFromCache(method: string, data: any, preSets: CoreSiteWSPreSets, emergency?: boolean, originalData?: any)
+            : Promise<any> {
         if (!this.db || !preSets.getFromCache) {
             return Promise.reject(null);
         }
@@ -746,7 +761,17 @@ export class CoreSite {
                 return entries[0];
             });
         } else {
-            promise = this.db.getRecord(this.WS_CACHE_TABLE, { id: id });
+            promise = this.db.getRecord(this.WS_CACHE_TABLE, { id: id }).catch(() => {
+                // Entry not found, try to get it using the old ID.
+                const oldId = this.getCacheOldId(method, originalData || {});
+
+                return this.db.getRecord(this.WS_CACHE_TABLE, { id: oldId }).then((entry) => {
+                    // Update the entry ID to use the new one.
+                    this.db.updateRecords(this.WS_CACHE_TABLE, {id: id}, {id: oldId});
+
+                    return entry;
+                });
+            });
         }
 
         return promise.then((entry) => {
diff --git a/src/core/course/classes/module-prefetch-handler.ts b/src/core/course/classes/module-prefetch-handler.ts
index 076b0e44e..a663354f4 100644
--- a/src/core/course/classes/module-prefetch-handler.ts
+++ b/src/core/course/classes/module-prefetch-handler.ts
@@ -457,7 +457,12 @@ export class CoreCourseModulePrefetchHandlerBase implements CoreCourseModulePref
             // Package marked as downloading, call the download function.
             // Send all the params except downloadFn. This includes all params passed after siteId.
             return downloadFn.apply(downloadFn, [module, courseId, single, siteId].concat(args));
-        }).then((extra: string) => {
+        }).then((extra: any) => {
+            // Only accept string types.
+            if (typeof extra != 'string') {
+                extra = '';
+            }
+
             // Prefetch finished, mark as downloaded.
             return this.setDownloaded(module.id, siteId, extra);
         }).catch((error) => {
diff --git a/src/core/emulator/classes/sqlitedb.ts b/src/core/emulator/classes/sqlitedb.ts
index 90d5654d2..5aedfcfe3 100644
--- a/src/core/emulator/classes/sqlitedb.ts
+++ b/src/core/emulator/classes/sqlitedb.ts
@@ -132,7 +132,10 @@ export class SQLiteDBMock extends SQLiteDB {
 
                         tx.executeSql(query, params, (tx, results) => {
                             resolve(results);
-                        }, reject);
+                        }, (tx, error) => {
+                            console.error(query, params, error);
+                            reject(error);
+                        });
                     }));
                 });
 
diff --git a/src/core/emulator/emulator.module.ts b/src/core/emulator/emulator.module.ts
index 93a7fdb5e..68260edc6 100644
--- a/src/core/emulator/emulator.module.ts
+++ b/src/core/emulator/emulator.module.ts
@@ -159,10 +159,11 @@ export const IONIC_NATIVE_PROVIDERS = [
         Keyboard,
         {
             provide: LocalNotifications,
-            deps: [CoreAppProvider, CoreUtilsProvider],
-            useFactory: (appProvider: CoreAppProvider, utils: CoreUtilsProvider): LocalNotifications => {
+            deps: [CoreAppProvider, CoreUtilsProvider, CoreTextUtilsProvider],
+            useFactory: (appProvider: CoreAppProvider, utils: CoreUtilsProvider, txtUtils: CoreTextUtilsProvider)
+                    : LocalNotifications => {
                 // Use platform instead of CoreAppProvider to prevent circular dependencies.
-                return appProvider.isMobile() ? new LocalNotifications() : new LocalNotificationsMock(appProvider, utils);
+                return appProvider.isMobile() ? new LocalNotifications() : new LocalNotificationsMock(appProvider, utils, txtUtils);
             }
         },
         {
diff --git a/src/core/emulator/providers/local-notifications.ts b/src/core/emulator/providers/local-notifications.ts
index 50f9ea52a..47ba21038 100644
--- a/src/core/emulator/providers/local-notifications.ts
+++ b/src/core/emulator/providers/local-notifications.ts
@@ -15,6 +15,7 @@
 import { Injectable } from '@angular/core';
 import { LocalNotifications, ILocalNotification } from '@ionic-native/local-notifications';
 import { CoreAppProvider } from '@providers/app';
+import { CoreTextUtilsProvider } from '@providers/utils/text';
 import { CoreUtilsProvider } from '@providers/utils/utils';
 import { SQLiteDB } from '@classes/sqlitedb';
 import { CoreConstants } from '@core/constants';
@@ -49,6 +50,22 @@ export class LocalNotificationsMock extends LocalNotifications {
                 type: 'INTEGER',
                 primaryKey: true
             },
+            {
+                name: 'title',
+                type: 'TEXT'
+            },
+            {
+                name: 'text',
+                type: 'TEXT'
+            },
+            {
+                name: 'at',
+                type: 'INTEGER'
+            },
+            {
+                name: 'data',
+                type: 'TEXT'
+            },
             {
                 name: 'triggered',
                 type: 'INTEGER'
@@ -71,7 +88,7 @@ export class LocalNotificationsMock extends LocalNotifications {
         at: undefined
     };
 
-    constructor(private appProvider: CoreAppProvider, private utils: CoreUtilsProvider) {
+    constructor(private appProvider: CoreAppProvider, private utils: CoreUtilsProvider, private textUtils: CoreTextUtilsProvider) {
         super();
 
         this.appDB = appProvider.getDB();
@@ -281,7 +298,15 @@ export class LocalNotificationsMock extends LocalNotifications {
      * @return {Promise<any>} Promise resolved with the notifications.
      */
     protected getAllNotifications(): Promise<any> {
-        return this.appDB.getAllRecords(this.DESKTOP_NOTIFS_TABLE);
+        return this.appDB.getAllRecords(this.DESKTOP_NOTIFS_TABLE).then((notifications) => {
+            notifications.forEach((notification) => {
+                notification.at = new Date(notification.at);
+                notification.data = this.textUtils.parseJSON(notification.data);
+                notification.triggered = !!notification.triggered;
+            });
+
+            return notifications;
+        });
     }
 
     /**
@@ -663,15 +688,22 @@ export class LocalNotificationsMock extends LocalNotifications {
     /**
      * Store a notification in local DB.
      *
-     * @param {any} notification Notification to store.
+     * @param {ILocalNotification} notification Notification to store.
      * @param {boolean} triggered Whether the notification has been triggered.
      * @return {Promise<any>} Promise resolved when stored.
      */
-    protected storeNotification(notification: any, triggered: boolean): Promise<any> {
-        notification = Object.assign({}, notification); // Clone the object.
-        notification.triggered = !!triggered;
+    protected storeNotification(notification: ILocalNotification, triggered: boolean): Promise<any> {
+        // Only store some of the properties.
+        const entry = {
+            id : notification.id,
+            title: notification.title,
+            text: notification.text,
+            at: notification.at ? notification.at.getTime() : 0,
+            data: notification.data ? JSON.stringify(notification.data) : '{}',
+            triggered: triggered ? 1 : 0
+        };
 
-        return this.appDB.insertRecord(this.DESKTOP_NOTIFS_TABLE, notification);
+        return this.appDB.insertRecord(this.DESKTOP_NOTIFS_TABLE, entry);
     }
 
     /**
diff --git a/src/core/question/providers/question.ts b/src/core/question/providers/question.ts
index e7d81d630..36fc7fed9 100644
--- a/src/core/question/providers/question.ts
+++ b/src/core/question/providers/question.ts
@@ -73,7 +73,7 @@ export class CoreQuestionProvider {
                     notNull: true
                 },
                 {
-                    name: 'attemptId',
+                    name: 'attemptid',
                     type: 'INTEGER',
                     notNull: true
                 },
@@ -83,11 +83,11 @@ export class CoreQuestionProvider {
                     notNull: true
                 },
                 {
-                    name: 'componentId',
+                    name: 'componentid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'userId',
+                    name: 'userid',
                     type: 'INTEGER'
                 },
                 {
@@ -99,7 +99,7 @@ export class CoreQuestionProvider {
                     type: 'TEXT'
                 }
             ],
-            primaryKeys: ['component', 'attemptId', 'slot']
+            primaryKeys: ['component', 'attemptid', 'slot']
         },
         {
             name: this.QUESTION_ANSWERS_TABLE,
@@ -110,7 +110,7 @@ export class CoreQuestionProvider {
                     notNull: true
                 },
                 {
-                    name: 'attemptId',
+                    name: 'attemptid',
                     type: 'INTEGER',
                     notNull: true
                 },
@@ -120,21 +120,17 @@ export class CoreQuestionProvider {
                     notNull: true
                 },
                 {
-                    name: 'componentId',
+                    name: 'componentid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'userId',
+                    name: 'userid',
                     type: 'INTEGER'
                 },
                 {
-                    name: 'questionSlot',
+                    name: 'questionslot',
                     type: 'INTEGER'
                 },
-                {
-                    name: 'state',
-                    type: 'TEXT'
-                },
                 {
                     name: 'value',
                     type: 'TEXT'
@@ -144,7 +140,7 @@ export class CoreQuestionProvider {
                     type: 'INTEGER'
                 }
             ],
-            primaryKeys: ['component', 'attemptId', 'name']
+            primaryKeys: ['component', 'attemptid', 'name']
         }
     ];
 
@@ -310,7 +306,7 @@ export class CoreQuestionProvider {
      */
     getAnswer(component: string, attemptId: number, name: string, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.QUESTION_ANSWERS_TABLE, {component, attemptId, name});
+            return site.getDb().getRecord(this.QUESTION_ANSWERS_TABLE, {component: component, attemptid: attemptId, name: name});
         });
     }
 
@@ -324,7 +320,7 @@ export class CoreQuestionProvider {
      */
     getAttemptAnswers(component: string, attemptId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.QUESTION_ANSWERS_TABLE, {component, attemptId});
+            return site.getDb().getRecords(this.QUESTION_ANSWERS_TABLE, {component: component, attemptid: attemptId});
         });
     }
 
@@ -338,7 +334,7 @@ export class CoreQuestionProvider {
      */
     getAttemptQuestions(component: string, attemptId: number, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.QUESTION_TABLE, {component, attemptId});
+            return site.getDb().getRecords(this.QUESTION_TABLE, {component: component, attemptid: attemptId});
         });
     }
 
@@ -389,7 +385,7 @@ export class CoreQuestionProvider {
      */
     getQuestion(component: string, attemptId: number, slot: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecord(this.QUESTION_TABLE, {component, attemptId, slot});
+            return site.getDb().getRecord(this.QUESTION_TABLE, {component: component, attemptid: attemptId, slot: slot});
         });
     }
 
@@ -405,8 +401,9 @@ export class CoreQuestionProvider {
      */
     getQuestionAnswers(component: string, attemptId: number, slot: number, filter?: boolean, siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().getRecords(this.QUESTION_ANSWERS_TABLE, {component, attemptId, questionSlot: slot})
-                    .then((answers) => {
+            return site.getDb().getRecords(this.QUESTION_ANSWERS_TABLE, {component: component, attemptid: attemptId,
+                    questionslot: slot}).then((answers) => {
+
                 if (filter) {
                     // Get only answers that isn't "extra" data like sequencecheck or certainty.
                     return this.getBasicAnswersFromArray(answers);
@@ -467,7 +464,7 @@ export class CoreQuestionProvider {
      */
     removeAttemptAnswers(component: string, attemptId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.QUESTION_ANSWERS_TABLE, {component, attemptId});
+            return site.getDb().deleteRecords(this.QUESTION_ANSWERS_TABLE, {component: component, attemptid: attemptId});
         });
     }
 
@@ -481,7 +478,7 @@ export class CoreQuestionProvider {
      */
     removeAttemptQuestions(component: string, attemptId: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.QUESTION_TABLE, {component, attemptId});
+            return site.getDb().deleteRecords(this.QUESTION_TABLE, {component: component, attemptid: attemptId});
         });
     }
 
@@ -496,7 +493,8 @@ export class CoreQuestionProvider {
      */
     removeAnswer(component: string, attemptId: number, name: string, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.QUESTION_ANSWERS_TABLE, {component, attemptId, name});
+            return site.getDb().deleteRecords(this.QUESTION_ANSWERS_TABLE, {component: component, attemptid: attemptId,
+                    name: name});
         });
     }
 
@@ -511,7 +509,7 @@ export class CoreQuestionProvider {
      */
     removeQuestion(component: string, attemptId: number, slot: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.QUESTION_TABLE, {component, attemptId, slot});
+            return site.getDb().deleteRecords(this.QUESTION_TABLE, {component: component, attemptid: attemptId, slot: slot});
         });
     }
 
@@ -526,7 +524,8 @@ export class CoreQuestionProvider {
      */
     removeQuestionAnswers(component: string, attemptId: number, slot: number, siteId?: string): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            return site.getDb().deleteRecords(this.QUESTION_ANSWERS_TABLE, {component, attemptId, questionSlot: slot});
+            return site.getDb().deleteRecords(this.QUESTION_ANSWERS_TABLE, {component: component, attemptid: attemptId,
+                    questionslot: slot});
         });
     }
 
@@ -568,10 +567,10 @@ export class CoreQuestionProvider {
                 const value = answers[name],
                     entry = {
                         component: component,
-                        componentId: componentId,
-                        attemptId: attemptId,
-                        userId: userId,
-                        questionSlot: this.getQuestionSlotFromName(name),
+                        componentid: componentId,
+                        attemptid: attemptId,
+                        userid: userId,
+                        questionslot: this.getQuestionSlotFromName(name),
                         name: name,
                         value: value,
                         timemodified: timemodified
@@ -602,7 +601,7 @@ export class CoreQuestionProvider {
         return this.sitesProvider.getSite(siteId).then((site) => {
             const entry = {
                 component: component,
-                componentId: componentId,
+                componentid: componentId,
                 attemptid: attemptId,
                 userid: userId,
                 number: question.number,
diff --git a/src/core/settings/pages/general/general.ts b/src/core/settings/pages/general/general.ts
index 27c7d1e7e..ab493b501 100644
--- a/src/core/settings/pages/general/general.ts
+++ b/src/core/settings/pages/general/general.ts
@@ -56,7 +56,7 @@ export class CoreSettingsGeneralPage {
         this.rteSupported = this.domUtils.isRichTextEditorSupported();
         if (this.rteSupported) {
             this.configProvider.get(CoreConstants.SETTINGS_RICH_TEXT_EDITOR, true).then((richTextEditorEnabled) => {
-                this.richTextEditor = richTextEditorEnabled;
+                this.richTextEditor = !!richTextEditorEnabled;
             });
         }
 
@@ -81,7 +81,7 @@ export class CoreSettingsGeneralPage {
      * Called when the rich text editor is enabled or disabled.
      */
     richTextEditorChanged(): void {
-        this.configProvider.set(CoreConstants.SETTINGS_RICH_TEXT_EDITOR, this.richTextEditor);
+        this.configProvider.set(CoreConstants.SETTINGS_RICH_TEXT_EDITOR, this.richTextEditor ? 1 : 0);
     }
 
     /**
diff --git a/src/core/settings/pages/synchronization/synchronization.ts b/src/core/settings/pages/synchronization/synchronization.ts
index 19be97a5d..48c7299ab 100644
--- a/src/core/settings/pages/synchronization/synchronization.ts
+++ b/src/core/settings/pages/synchronization/synchronization.ts
@@ -68,7 +68,7 @@ export class CoreSettingsSynchronizationPage implements OnDestroy {
         });
 
         this.configProvider.get(CoreConstants.SETTINGS_SYNC_ONLY_ON_WIFI, true).then((syncOnlyOnWifi) => {
-            this.syncOnlyOnWifi = syncOnlyOnWifi;
+            this.syncOnlyOnWifi = !!syncOnlyOnWifi;
         });
     }
 
@@ -76,7 +76,7 @@ export class CoreSettingsSynchronizationPage implements OnDestroy {
      * Called when sync only on wifi setting is enabled or disabled.
      */
     syncOnlyOnWifiChanged(): void {
-        this.configProvider.set(CoreConstants.SETTINGS_SYNC_ONLY_ON_WIFI, this.syncOnlyOnWifi);
+        this.configProvider.set(CoreConstants.SETTINGS_SYNC_ONLY_ON_WIFI, this.syncOnlyOnWifi ? 1 : 0);
     }
 
     /**
diff --git a/src/core/sharedfiles/providers/sharedfiles.ts b/src/core/sharedfiles/providers/sharedfiles.ts
index 32e5fd716..1cf41d80f 100644
--- a/src/core/sharedfiles/providers/sharedfiles.ts
+++ b/src/core/sharedfiles/providers/sharedfiles.ts
@@ -31,7 +31,7 @@ export class CoreSharedFilesProvider {
     static SHARED_FILES_FOLDER = 'sharedfiles';
 
     // Variables for the database.
-    protected SHARED_FILES_TABLE = 'wscache';
+    protected SHARED_FILES_TABLE = 'shared_files';
     protected tableSchema = {
         name: this.SHARED_FILES_TABLE,
         columns: [
diff --git a/src/index.html b/src/index.html
index 2cef10c88..eeba3d3b6 100644
--- a/src/index.html
+++ b/src/index.html
@@ -8,6 +8,8 @@
   <meta name="format-detection" content="telephone=no">
   <meta name="msapplication-tap-highlight" content="no">
 
+  <script src="assets/ydn.db-dev.js"></script>
+
   <link rel="icon" type="image/x-icon" href="assets/icon/favicon.ico">
   <link rel="manifest" href="manifest.json">
   <meta name="theme-color" content="#4e8ef7">
diff --git a/src/providers/config.ts b/src/providers/config.ts
index c34166080..05e9a6a0e 100644
--- a/src/providers/config.ts
+++ b/src/providers/config.ts
@@ -77,10 +77,10 @@ export class CoreConfigProvider {
      * Set an app setting.
      *
      * @param {string} name The config name.
-     * @param {boolean|number|string} value The config value. Can only store primitive values, not objects.
+     * @param {number|string} value The config value. Can only store number or strings.
      * @return {Promise<any>} Promise resolved when done.
      */
-    set(name: string, value: boolean | number | string): Promise<any> {
+    set(name: string, value: number | string): Promise<any> {
         return this.appDB.insertRecord(this.TABLE_NAME, { name: name, value: value });
     }
 }
diff --git a/src/providers/plugin-file-delegate.ts b/src/providers/plugin-file-delegate.ts
index b504a0ee8..6f1e3e902 100644
--- a/src/providers/plugin-file-delegate.ts
+++ b/src/providers/plugin-file-delegate.ts
@@ -20,11 +20,17 @@ import { CoreLoggerProvider } from './logger';
  */
 export interface CorePluginFileHandler {
     /**
-     * A name to identify the handler. It should match the "component" of pluginfile URLs.
+     * A name to identify the handler.
      * @type {string}
      */
     name: string;
 
+    /**
+     * The "component" of the handler. It should match the "component" of pluginfile URLs.
+     * @type {string}
+     */
+    component: string;
+
     /**
      * Return the RegExp to match the revision on pluginfile URLs.
      *
@@ -57,12 +63,12 @@ export class CorePluginFileDelegate {
     /**
      * Get the handler for a certain pluginfile url.
      *
-     * @param {string} pluginType Type of the plugin.
+     * @param {string} component Component of the plugin.
      * @return {CorePluginFileHandler} Handler. Undefined if no handler found for the plugin.
      */
-    protected getPluginHandler(pluginType: string): CorePluginFileHandler {
-        if (typeof this.handlers[pluginType] != 'undefined') {
-            return this.handlers[pluginType];
+    protected getPluginHandler(component: string): CorePluginFileHandler {
+        if (typeof this.handlers[component] != 'undefined') {
+            return this.handlers[component];
         }
     }
 
@@ -88,14 +94,14 @@ export class CorePluginFileDelegate {
      * @return {boolean} True if registered successfully, false otherwise.
      */
     registerHandler(handler: CorePluginFileHandler): boolean {
-        if (typeof this.handlers[handler.name] !== 'undefined') {
-            this.logger.log(`Addon '${handler.name}' already registered`);
+        if (typeof this.handlers[handler.component] !== 'undefined') {
+            this.logger.log(`Handler '${handler.component}' already registered`);
 
             return false;
         }
 
-        this.logger.log(`Registered addon '${handler.name}'`);
-        this.handlers[handler.name] = handler;
+        this.logger.log(`Registered handler '${handler.component}'`);
+        this.handlers[handler.component] = handler;
 
         return true;
     }
diff --git a/src/providers/update-manager.ts b/src/providers/update-manager.ts
index 659a069de..183d1b32b 100644
--- a/src/providers/update-manager.ts
+++ b/src/providers/update-manager.ts
@@ -13,13 +13,49 @@
 // limitations under the License.
 
 import { Injectable } from '@angular/core';
+import { CoreAppProvider } from './app';
 import { CoreConfigProvider } from './config';
 import { CoreFilepoolProvider } from './filepool';
 import { CoreInitHandler, CoreInitDelegate } from './init';
 import { CoreLocalNotificationsProvider } from './local-notifications';
 import { CoreLoggerProvider } from './logger';
 import { CoreSitesProvider } from './sites';
+import { CoreUtilsProvider } from './utils/utils';
 import { CoreConfigConstants } from '../configconstants';
+import { SQLiteDB } from '@classes/sqlitedb';
+
+/**
+ * Data to migrate a store of Ionic 1 app to the SQLite DB.
+ */
+export interface CoreUpdateManagerMigrateTable {
+    /**
+     * Current name of the store/table.
+     * @type {string}
+     */
+    name: string;
+
+    /**
+     * New name of the table. If not defined, "name" will be used.
+     * @type {string}
+     */
+    newName?: string;
+
+    /**
+     * An object to rename and convert some fields of the table/store.
+     * @type {object}
+     */
+    fields?: {
+        name: string, // Field name in the old app.
+        newName?: string, // New field name. If not provided, keep the same name.
+        type?: string, // Type of the field if it needs to be treated: 'any', 'object', 'date', 'boolean'.
+        delete?: boolean // Whether the field must be deleted because it isn't needed in the new schema.
+    }[];
+
+    /**
+     * If set, all the fields that aren't in this array will be deleted. The names in this list should be the new names.
+     */
+    filterFields?: string[];
+}
 
 /**
  * Factory to handle app updates. This factory shouldn't be used outside of core.
@@ -36,8 +72,258 @@ export class CoreUpdateManagerProvider implements CoreInitHandler {
     protected VERSION_APPLIED = 'version_applied';
     protected logger;
 
+    /**
+     * Tables to migrate from app DB ('MoodleMobile'). Include all the core ones to decrease the dependencies.
+     *
+     * @type {CoreUpdateManagerMigrateTable[]}
+     */
+    protected appDBTables: CoreUpdateManagerMigrateTable[] = [
+        {
+            name: 'config',
+            newName: 'core_config',
+            fields: [
+                {
+                    name: 'value',
+                    type: 'any'
+                }
+            ]
+        },
+        {
+            name: 'cron'
+        },
+        {
+            name: 'current_site',
+            fields: [
+                {
+                    name: 'siteid',
+                    newName: 'siteId'
+                }
+            ]
+        },
+        {
+            name: 'desktop_local_notifications',
+            fields: [
+                {
+                    name: 'at',
+                    type: 'date'
+                },
+                {
+                    name: 'data',
+                    type: 'object'
+                },
+                {
+                    name: 'triggered',
+                    type: 'boolean'
+                }
+            ],
+            filterFields: ['id', 'title', 'text', 'at', 'data', 'triggered']
+        },
+        {
+            name: 'files_queue',
+            newName: 'filepool_files_queue',
+            fields: [
+                {
+                    name: 'isexternalfile',
+                    type: 'boolean'
+                },
+                {
+                    name: 'links',
+                    type: 'object'
+                },
+                {
+                    name: 'sortorder',
+                    delete: true
+                }
+            ]
+        },
+        {
+            name: 'notification_components'
+        },
+        {
+            name: 'notification_sites'
+        },
+        {
+            name: 'notifications_triggered'
+        },
+        {
+            name: 'shared_files'
+        },
+        {
+            name: 'sites',
+            fields: [
+                {
+                    name: 'siteurl',
+                    newName: 'siteUrl'
+                },
+                {
+                    name: 'infos',
+                    newName: 'info',
+                    type: 'object'
+                },
+                {
+                    name: 'privatetoken',
+                    newName: 'privateToken'
+                },
+                {
+                    name: 'config',
+                    type: 'object'
+                },
+                {
+                    name: 'loggedout',
+                    newName: 'loggedOut'
+                }
+            ]
+        },
+    ];
+
+    /**
+     * Tables to migrate from each site DB. Include all the core ones to decrease the dependencies.
+     *
+     * @type {CoreUpdateManagerMigrateTable[]}
+     */
+    protected siteDBTables: CoreUpdateManagerMigrateTable[] = [
+        {
+            name: 'check_updates_times',
+            fields: [
+                {
+                    name: 'courseid',
+                    newName: 'courseId'
+                }
+            ]
+        },
+        {
+            name: 'course_status',
+            fields: [
+                {
+                    name: 'previous',
+                    newName: 'previousStatus'
+                },
+                {
+                    name: 'downloadtime',
+                    newName: 'downloadTime'
+                },
+                {
+                    name: 'previousdownloadtime',
+                    newName: 'previousDownloadTime'
+                }
+            ]
+        },
+        {
+            name: 'filepool',
+            newName: 'filepool_files',
+            fields: [
+                {
+                    name: 'stale',
+                    type: 'boolean'
+                },
+                {
+                    name: 'downloaded',
+                    newName: 'downloadTime'
+                },
+                {
+                    name: 'isexternalfile',
+                    type: 'boolean'
+                }
+            ]
+        },
+        {
+            name: 'files_links',
+            newName: 'filepool_files_links',
+            fields: [
+                {
+                    name: 'componentAndId',
+                    delete: true
+                }
+            ]
+        },
+        {
+            name: 'filepool_packages',
+            fields: [
+                {
+                    name: 'downloadtime',
+                    newName: 'downloadTime'
+                },
+                {
+                    name: 'previousdownloadtime',
+                    newName: 'previousDownloadTime'
+                },
+                {
+                    name: 'revision', // Move the value of 'revision' to 'extra' so SCORMs keep working.
+                    newName: 'extra'
+                },
+                {
+                    name: 'timemodified',
+                    delete: true
+                }
+            ]
+        },
+        {
+            name: 'mm_emulator_last_received_notification',
+            newName: 'core_emulator_last_received_notification',
+            filterFields: ['component', 'id', 'timecreated']
+        },
+        {
+            name: 'questions',
+            fields: [
+                {
+                    name: 'componentId',
+                    newName: 'componentid'
+                },
+                {
+                    name: 'componentAndAttempt',
+                    delete: true
+                },
+                {
+                    name: 'componentAndComponentId',
+                    delete: true
+                }
+            ]
+        },
+        {
+            name: 'question_answers',
+            fields: [
+                {
+                    name: 'componentId',
+                    newName: 'componentid'
+                },
+                {
+                    name: 'componentAndAttempt',
+                    delete: true
+                },
+                {
+                    name: 'componentAndComponentId',
+                    delete: true
+                },
+                {
+                    name: 'componentAndAttemptAndQuestion',
+                    delete: true
+                }
+            ]
+        },
+        {
+            name: 'sync'
+        },
+        {
+            name: 'users'
+        },
+        {
+            name: 'wscache',
+            fields: [
+                {
+                    name: 'data',
+                    type: 'object'
+                },
+                {
+                    name: 'expirationtime',
+                    newName: 'expirationTime'
+                }
+            ]
+        }
+    ];
+
     constructor(logger: CoreLoggerProvider, private configProvider: CoreConfigProvider, private sitesProvider: CoreSitesProvider,
-            private filepoolProvider: CoreFilepoolProvider, private notifProvider: CoreLocalNotificationsProvider) {
+            private filepoolProvider: CoreFilepoolProvider, private notifProvider: CoreLocalNotificationsProvider,
+            private utils: CoreUtilsProvider, private appProvider: CoreAppProvider) {
         this.logger = logger.getInstance('CoreUpdateManagerProvider');
     }
 
@@ -51,19 +337,28 @@ export class CoreUpdateManagerProvider implements CoreInitHandler {
         const promises = [],
             versionCode = CoreConfigConstants.versioncode;
 
-        return this.configProvider.get(this.VERSION_APPLIED, 0).then((versionApplied: number) => {
-            // @todo: Migrate all data from ydn-db to SQLite if there is no versionApplied.
+        return this.configProvider.get(this.VERSION_APPLIED, 0).then((versionApplied) => {
+            if (!versionApplied) {
+                // No version applied, either the app was just installed or it's being updated from Ionic 1.
+                return this.migrateAllDBs().then(() => {
+                    // DBs migrated, get the version applied again.
+                    return this.configProvider.get(this.VERSION_APPLIED, 0);
+                });
+            } else {
+                return versionApplied;
+            }
+        }).then((versionApplied: number) => {
 
-            if (versionCode >= 2013 && versionApplied < 2013) {
+            if (versionCode >= 2013 && versionApplied < 2013 && versionApplied > 0) {
                 promises.push(this.migrateFileExtensions());
             }
 
-            if (versionCode >= 2017 && versionApplied < 2017) {
+            if (versionCode >= 2017 && versionApplied < 2017 && versionApplied > 0) {
                 promises.push(this.setCalendarDefaultNotifTime());
                 promises.push(this.setSitesConfig());
             }
 
-            if (versionCode >= 2018 && versionApplied < 2018) {
+            if (versionCode >= 2018 && versionApplied < 2018 && versionApplied > 0) {
                 promises.push(this.adaptForumOfflineStores());
             }
 
@@ -75,6 +370,174 @@ export class CoreUpdateManagerProvider implements CoreInitHandler {
         });
     }
 
+    /**
+     * Register several app tables to be migrated to the new schema.
+     *
+     * @param {CoreUpdateManagerMigrateTable[]} tables The tables to migrate.
+     */
+    registerAppTablesMigration(tables: CoreUpdateManagerMigrateTable[]): void {
+        tables.forEach((table) => {
+            this.registerAppTableMigration(table);
+        });
+    }
+
+    /**
+     * Register an app table to be migrated to the new schema.
+     *
+     * @param {CoreUpdateManagerMigrateTable} table The table to migrate.
+     */
+    registerAppTableMigration(table: CoreUpdateManagerMigrateTable): void {
+        this.appDBTables.push(table);
+    }
+
+    /**
+     * Register several site tables to be migrated to the new schema.
+     *
+     * @param {CoreUpdateManagerMigrateTable[]} tables The tables to migrate.
+     */
+    registerSiteTablesMigration(tables: CoreUpdateManagerMigrateTable[]): void {
+        tables.forEach((table) => {
+            this.registerSiteTableMigration(table);
+        });
+    }
+
+    /**
+     * Register a site table to be migrated to the new schema.
+     *
+     * @param {CoreUpdateManagerMigrateTable} table The table to migrate.
+     */
+    registerSiteTableMigration(table: CoreUpdateManagerMigrateTable): void {
+        this.siteDBTables.push(table);
+    }
+
+    /**
+     * Migrate all DBs and tables from the old format to SQLite.
+     *
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    protected migrateAllDBs(): Promise<any> {
+        if (!(<any> window).ydn) {
+            // The ydn-db library is not loaded, stop.
+            return Promise.resolve();
+        }
+
+        // First migrate the app DB.
+        return this.migrateAppDB().then(() => {
+            // Now migrate all site DBs.
+            return this.sitesProvider.getSitesIds();
+        }).then((ids) => {
+            const promises = [];
+
+            ids.forEach((id) => {
+                promises.push(this.migrateSiteDB(id));
+            });
+
+            return this.utils.allPromises(promises);
+        });
+    }
+
+    /**
+     * Migrate the app DB.
+     *
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    protected migrateAppDB(): Promise<any> {
+        const oldDb = new (<any> window).ydn.db.Storage('MoodleMobile'),
+            newDb = this.appProvider.getDB();
+
+        return this.migrateDB(oldDb, newDb, this.appDBTables);
+    }
+
+    /**
+     * Migrate the DB of a certain site.
+     *
+     * @param {string} siteId The site ID.
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    protected migrateSiteDB(siteId: string): Promise<any> {
+        // Get the site DB.
+        return this.sitesProvider.getSiteDb(siteId).then((newDb) => {
+            const oldDb = new (<any> window).ydn.db.Storage('Site-' + siteId);
+
+            return this.migrateDB(oldDb, newDb, this.siteDBTables);
+        });
+    }
+
+    /**
+     * Migrate all the tables of a certain DB to the SQLite DB.
+     *
+     * @param {any} oldDb The old DB (created using ydn-db).
+     * @param {SQLiteDB} newDb The new DB.
+     * @param {CoreUpdateManagerMigrateTable[]} tables The tables to migrate.
+     * @return {Promise<any>} Promise resolved when done.
+     */
+    protected migrateDB(oldDb: any, newDb: SQLiteDB, tables: CoreUpdateManagerMigrateTable[]): Promise<any> {
+        if (!oldDb || !newDb) {
+            // Some of the DBs doesn't exist, stop.
+            return Promise.resolve();
+        }
+
+        const promises = [];
+
+        tables.forEach((table) => {
+
+            // Get current values.
+            promises.push(Promise.resolve(oldDb.values(table.name, undefined, 99999999)).then((entries) => {
+                const fields = table.fields || [],
+                    filterFields = table.filterFields || [];
+
+                // Treat the entries.
+                for (let i = 0; i < entries.length; i++) {
+                    const entry = entries[i];
+
+                    // Convert and rename the fields to match the new schema.
+                    fields.forEach((field) => {
+                        const value = entry[field.name];
+
+                        // Convert the field to the right format.
+                        if (field.type == 'object' || (field.type == 'any' && typeof value == 'object')) {
+                            entry[field.name] = JSON.stringify(value);
+                        } else if (field.type == 'date' && value) {
+                            entry[field.name] = value.getTime();
+                        } else if (field.type == 'boolean' || (field.type == 'any' && typeof value == 'boolean')) {
+                            entry[field.name] = value ? 1 : 0;
+                        }
+
+                        if (field.newName) {
+                            // Rename the field.
+                            entry[field.newName] = entry[field.name];
+                            delete entry[field.name];
+                        }
+
+                        if (field.delete) {
+                            // Delete the field.
+                            delete entry[field.name];
+                        }
+                    });
+
+                    // Remove invalid and unneeded properties.
+                    for (const name in entry) {
+                        if (name.indexOf('$') === 0) {
+                            // Property not valid, remove.
+                            delete entry[name];
+
+                        } else if (filterFields.length && filterFields.indexOf(name) == -1) {
+                            // The property isn't present in filterFields, remove it.
+                            delete entry[name];
+                        }
+                    }
+                }
+
+                // Now store the entries in the new DB.
+                return newDb.insertRecords(table.newName || table.name, entries);
+            }).catch((error) => {
+                this.logger.error('Error migrating table ' + table.name + ' to ' + (table.newName || table.name) + ': ', error);
+            }));
+        });
+
+        return this.utils.allPromises(promises);
+    }
+
     /**
      * Migrates files filling extensions.
      *
diff --git a/src/providers/utils/dom.ts b/src/providers/utils/dom.ts
index 510c7876d..a7b961e9b 100644
--- a/src/providers/utils/dom.ts
+++ b/src/providers/utils/dom.ts
@@ -548,7 +548,9 @@ export class CoreDomUtilsProvider {
      */
     isRichTextEditorEnabled(): Promise<boolean> {
         if (this.isRichTextEditorSupported()) {
-            return this.configProvider.get(CoreConstants.SETTINGS_RICH_TEXT_EDITOR, true);
+            return this.configProvider.get(CoreConstants.SETTINGS_RICH_TEXT_EDITOR, true).then((enabled) => {
+                return !!enabled;
+            });
         }
 
         return Promise.resolve(false);