Vmeda.Online/src/addon/mod/data/providers/sync.ts

411 lines
17 KiB
TypeScript

// (C) Copyright 2015 Martin Dougiamas
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import { Injectable } from '@angular/core';
import { CoreLoggerProvider } from '@providers/logger';
import { CoreSitesProvider } from '@providers/sites';
import { CoreSyncBaseProvider } from '@classes/base-sync';
import { CoreAppProvider } from '@providers/app';
import { CoreUtilsProvider } from '@providers/utils/utils';
import { CoreTextUtilsProvider } from '@providers/utils/text';
import { CoreTimeUtilsProvider } from '@providers/utils/time';
import { AddonModDataOfflineProvider } from './offline';
import { AddonModDataProvider } from './data';
import { AddonModDataHelperProvider } from './helper';
import { CoreEventsProvider } from '@providers/events';
import { TranslateService } from '@ngx-translate/core';
import { CoreCourseProvider } from '@core/course/providers/course';
import { CoreCourseLogHelperProvider } from '@core/course/providers/log-helper';
import { CoreSyncProvider } from '@providers/sync';
import { CoreRatingSyncProvider } from '@core/rating/providers/sync';
/**
* Service to sync databases.
*/
@Injectable()
export class AddonModDataSyncProvider extends CoreSyncBaseProvider {
static AUTO_SYNCED = 'addon_mod_data_autom_synced';
protected componentTranslate: string;
constructor(protected sitesProvider: CoreSitesProvider, protected loggerProvider: CoreLoggerProvider,
protected appProvider: CoreAppProvider, private dataOffline: AddonModDataOfflineProvider,
private eventsProvider: CoreEventsProvider, private dataProvider: AddonModDataProvider,
protected translate: TranslateService, private utils: CoreUtilsProvider, courseProvider: CoreCourseProvider,
syncProvider: CoreSyncProvider, protected textUtils: CoreTextUtilsProvider, timeUtils: CoreTimeUtilsProvider,
private dataHelper: AddonModDataHelperProvider, private logHelper: CoreCourseLogHelperProvider,
private ratingSync: CoreRatingSyncProvider) {
super('AddonModDataSyncProvider', loggerProvider, sitesProvider, appProvider, syncProvider, textUtils, translate,
timeUtils);
this.componentTranslate = courseProvider.translateModuleName('data');
}
/**
* Check if a database has data to synchronize.
*
* @param {number} dataId Database ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<boolean>} Promise resolved with boolean: true if has data to sync, false otherwise.
*/
hasDataToSync(dataId: number, siteId?: string): Promise<boolean> {
return this.dataOffline.hasOfflineData(dataId, siteId);
}
/**
* Try to synchronize all the databases in a certain site or in all sites.
*
* @param {string} [siteId] Site ID to sync. If not defined, sync all sites.
* @param {boolean} force Wether to force sync not depending on last execution.
* @return {Promise<any>} Promise resolved if sync is successful, rejected if sync fails.
*/
syncAllDatabases(siteId?: string, force?: boolean): Promise<any> {
return this.syncOnSites('all databases', this.syncAllDatabasesFunc.bind(this), [force], siteId);
}
/**
* Sync all pending databases on a site.
*
* @param {string} [siteId] Site ID to sync. If not defined, sync all sites.
* @param {boolean} force Wether to force sync not depending on last execution.
* @param {Promise<any>} Promise resolved if sync is successful, rejected if sync fails.
*/
protected syncAllDatabasesFunc(siteId?: string, force?: boolean): Promise<any> {
siteId = siteId || this.sitesProvider.getCurrentSiteId();
const promises = [];
// Get all data answers pending to be sent in the site.
promises.push(this.dataOffline.getAllEntries(siteId).then((offlineActions) => {
const promises = {};
// Do not sync same database twice.
offlineActions.forEach((action) => {
if (typeof promises[action.dataid] != 'undefined') {
return;
}
promises[action.dataid] = force ? this.syncDatabase(action.dataid, siteId) :
this.syncDatabaseIfNeeded(action.dataid, siteId);
promises[action.dataid].then((result) => {
if (result && result.updated) {
// Sync done. Send event.
this.eventsProvider.trigger(AddonModDataSyncProvider.AUTO_SYNCED, {
dataId: action.dataid,
warnings: result.warnings
}, siteId);
}
});
});
// Promises will be an object so, convert to an array first;
return Promise.all(this.utils.objectToArray(promises));
}));
promises.push(this.syncRatings(undefined, force, siteId));
return Promise.all(promises);
}
/**
* Sync a database only if a certain time has passed since the last time.
*
* @param {number} dataId Database ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved when the data is synced or if it doesn't need to be synced.
*/
syncDatabaseIfNeeded(dataId: number, siteId?: string): Promise<any> {
return this.isSyncNeeded(dataId, siteId).then((needed) => {
if (needed) {
return this.syncDatabase(dataId, siteId);
}
});
}
/**
* Synchronize a data.
*
* @param {number} dataId Data ID.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved if sync is successful, rejected otherwise.
*/
syncDatabase(dataId: number, siteId?: string): Promise<any> {
siteId = siteId || this.sitesProvider.getCurrentSiteId();
if (this.isSyncing(dataId, siteId)) {
// There's already a sync ongoing for this data and user, return the promise.
return this.getOngoingSync(dataId, siteId);
}
// Verify that data isn't blocked.
if (this.syncProvider.isBlocked(AddonModDataProvider.COMPONENT, dataId, siteId)) {
this.logger.debug(`Cannot sync database '${dataId}' because it is blocked.`);
return Promise.reject(this.translate.instant('core.errorsyncblocked', {$a: this.componentTranslate}));
}
this.logger.debug(`Try to sync data '${dataId}' in site ${siteId}'`);
let courseId,
data;
const result = {
warnings: [],
updated: false
};
// Sync offline logs.
const syncPromise = this.logHelper.syncIfNeeded(AddonModDataProvider.COMPONENT, dataId, siteId).catch(() => {
// Ignore errors.
}).then(() => {
// Get answers to be sent.
return this.dataOffline.getDatabaseEntries(dataId, siteId).catch(() => {
// No offline data found, return empty object.
return [];
});
}).then((offlineActions) => {
if (!offlineActions.length) {
// Nothing to sync.
return;
}
if (!this.appProvider.isOnline()) {
// Cannot sync in offline.
return Promise.reject(null);
}
courseId = offlineActions[0].courseid;
// Send the answers.
return this.dataProvider.getDatabaseById(courseId, dataId, siteId).then((database) => {
data = database;
const offlineEntries = {};
offlineActions.forEach((entry) => {
if (typeof offlineEntries[entry.entryid] == 'undefined') {
offlineEntries[entry.entryid] = [];
}
offlineEntries[entry.entryid].push(entry);
});
const promises = this.utils.objectToArray(offlineEntries).map((entryActions) => {
return this.syncEntry(data, entryActions, result, siteId);
});
return Promise.all(promises);
}).then(() => {
if (result.updated) {
// Data has been sent to server. Now invalidate the WS calls.
return this.dataProvider.invalidateContent(data.cmid, courseId, siteId).catch(() => {
// Ignore errors.
});
}
});
}).then(() => {
// Sync finished, set sync time.
return this.setSyncTime(dataId, siteId);
}).then(() => {
return result;
});
return this.addOngoingSync(dataId, syncPromise, siteId);
}
/**
* Synchronize an entry.
*
* @param {any} data Database.
* @param {any} entryActions Entry actions.
* @param {any} result Object with the result of the sync.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved if success, rejected otherwise.
*/
protected syncEntry(data: any, entryActions: any[], result: any, siteId?: string): Promise<any> {
let discardError,
timePromise,
entryId = 0,
offlineId,
deleted = false;
const promises = [];
// Sort entries by timemodified.
entryActions = entryActions.sort((a: any, b: any) => a.timemodified - b.timemodified);
entryId = entryActions[0].entryid;
if (entryId > 0) {
timePromise = this.dataProvider.getEntry(data.id, entryId, false, siteId).then((entry) => {
return entry.entry.timemodified;
}).catch(() => {
return -1;
});
} else {
offlineId = entryId;
timePromise = Promise.resolve(0);
}
return timePromise.then((timemodified) => {
if (timemodified < 0 || timemodified >= entryActions[0].timemodified) {
// The entry was not found in Moodle or the entry has been modified, discard the action.
result.updated = true;
discardError = this.translate.instant('addon.mod_data.warningsubmissionmodified');
return this.dataOffline.deleteAllEntryActions(data.id, entryId, siteId);
}
entryActions.forEach((action) => {
let actionPromise;
const proms = [];
entryId = action.entryid > 0 ? action.entryid : entryId;
if (action.fields) {
action.fields.forEach((field) => {
// Upload Files if asked.
const value = this.textUtils.parseJSON(field.value);
if (value.online || value.offline) {
let files = value.online || [];
const fileProm = value.offline ? this.dataHelper.getStoredFiles(action.dataid, entryId, field.fieldid) :
Promise.resolve([]);
proms.push(fileProm.then((offlineFiles) => {
files = files.concat(offlineFiles);
return this.dataHelper.uploadOrStoreFiles(action.dataid, 0, entryId, field.fieldid, files, false,
siteId).then((filesResult) => {
field.value = JSON.stringify(filesResult);
});
}));
}
});
}
actionPromise = Promise.all(proms).then(() => {
// Perform the action.
switch (action.action) {
case 'add':
return this.dataProvider.addEntryOnline(action.dataid, action.fields, data.groupid, siteId)
.then((result) => {
entryId = result.newentryid;
});
case 'edit':
return this.dataProvider.editEntryOnline(entryId, action.fields, siteId);
case 'approve':
return this.dataProvider.approveEntryOnline(entryId, true, siteId);
case 'disapprove':
return this.dataProvider.approveEntryOnline(entryId, false, siteId);
case 'delete':
return this.dataProvider.deleteEntryOnline(entryId, siteId).then(() => {
deleted = true;
});
default:
break;
}
});
promises.push(actionPromise.catch((error) => {
if (error && error.wserror) {
// The WebService has thrown an error, this means it cannot be performed. Discard.
discardError = this.textUtils.getErrorMessageFromError(error);
} else {
// Couldn't connect to server, reject.
return Promise.reject(error);
}
}).then(() => {
// Delete the offline data.
result.updated = true;
return this.dataOffline.deleteEntry(action.dataid, action.entryid, action.action, siteId);
}));
});
return Promise.all(promises);
}).then(() => {
if (discardError) {
// Submission was discarded, add a warning.
const message = this.translate.instant('core.warningofflinedatadeleted', {
component: this.componentTranslate,
name: data.name,
error: discardError
});
if (result.warnings.indexOf(message) == -1) {
result.warnings.push(message);
}
}
// Sync done. Send event.
this.eventsProvider.trigger(AddonModDataSyncProvider.AUTO_SYNCED, {
dataId: data.id,
entryId: entryId,
offlineEntryId: offlineId,
warnings: result.warnings,
deleted: deleted
}, siteId);
});
}
/**
* Synchronize offline ratings.
*
* @param {number} [cmId] Course module to be synced. If not defined, sync all databases.
* @param {boolean} [force] Wether to force sync not depending on last execution.
* @param {string} [siteId] Site ID. If not defined, current site.
* @return {Promise<any>} Promise resolved if sync is successful, rejected otherwise.
*/
syncRatings(cmId?: number, force?: boolean, siteId?: string): Promise<any> {
siteId = siteId || this.sitesProvider.getCurrentSiteId();
return this.ratingSync.syncRatings('mod_data', 'entry', 'module', cmId, 0, force, siteId).then((results) => {
let updated = false;
const warnings = [];
const promises = [];
results.forEach((result) => {
promises.push(this.dataProvider.getDatabase(result.itemSet.courseId, result.itemSet.instanceId, siteId)
.then((data) => {
const promises = [];
if (result.updated.length) {
updated = true;
// Invalidate entry of updated ratings.
result.updated.forEach((itemId) => {
promises.push(this.dataProvider.invalidateEntryData(data.id, itemId, siteId));
});
}
if (result.warnings.length) {
result.warnings.forEach((warning) => {
warnings.push(this.translate.instant('core.warningofflinedatadeleted', {
component: this.componentTranslate,
name: data.name,
error: warning
}));
});
}
return this.utils.allPromises(promises);
}));
});
return Promise.all(promises).then(() => {
return { updated, warnings };
});
});
}
}