Merge pull request #1587 from crazyserver/MOBILE-2698

MOBILE-2698 calendar: Reduce core_group_course_user_groups requests

src/addon/calendar/pages/list/list.ts

@@ -291,7 +291,7 @@ export class AddonCalendarListPage implements OnDestroy {
     refreshEvents(refresher: any): void {
         const promises = [];
 
-        promises.push(this.calendarProvider.invalidateEventsList(this.courses));
+        promises.push(this.calendarProvider.invalidateEventsList());
 
         if (this.categoriesRetrieved) {
             promises.push(this.coursesProvider.invalidateCategories(0, true));

src/addon/calendar/providers/calendar.ts

@@ -297,11 +297,18 @@ export class AddonCalendarProvider {
             : Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
             siteId = site.getId();
+            const promises = [];
+            let courses, groups;
 
-            return this.coursesProvider.getUserCourses(false, siteId).then((courses) => {
+            promises.push(this.coursesProvider.getUserCourses(false, siteId).then((data) => {
+                courses = data;
                 courses.push({ id: site.getSiteHomeId() }); // Add front page.
+            }));
+            promises.push(this.groupsProvider.getAllUserGroups(siteId).then((data) => {
+                groups = data;
+            }));
 
-                return this.groupsProvider.getUserGroups(courses, siteId).then((groups) => {
+            return Promise.all(promises).then(() => {
                 const now = this.timeUtils.timestamp(),
                     start = now + (CoreConstants.SECONDS_DAY * daysToStart),
                     end = start + (CoreConstants.SECONDS_DAY * daysInterval),
@@ -318,12 +325,11 @@ export class AddonCalendarProvider {
                         }
                     };
 
-                    courses.forEach((course, index) => {
+                data.events.courseids = courses.map((course) => {
-                        data.events.courseids[index] = course.id;
+                    return course.id;
                 });
-
+                data.events.groupids = groups.map((group) => {
-                    groups.forEach((group, index) => {
+                    return group.id;
-                        data.events.groupids[index] = group.id;
                 });
 
                 // We need to retrieve cached data using cache key because we have timestamp in the params.
@@ -339,7 +345,6 @@ export class AddonCalendarProvider {
                 });
             });
         });
-        });
     }
 
     /**
@@ -365,18 +370,17 @@ export class AddonCalendarProvider {
     /**
      * Invalidates events list and all the single events and related info.
      *
-     * @param {any[]} courses List of courses or course ids.
      * @param {string} [siteId] Site Id. If not defined, use current site.
      * @return {Promise<any[]>} Promise resolved when the list is invalidated.
      */
-    invalidateEventsList(courses: any[], siteId?: string): Promise<any[]> {
+    invalidateEventsList(siteId?: string): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
             siteId = site.getId();
 
             const promises = [];
 
             promises.push(this.coursesProvider.invalidateUserCourses(siteId));
-            promises.push(this.groupsProvider.invalidateUserGroups(courses, siteId));
+            promises.push(this.groupsProvider.invalidateAllUserGroups(siteId));
             promises.push(site.invalidateWsCacheForKeyStartingWith(this.getEventsListPrefixCacheKey()));
 
             return Promise.all(promises);

src/providers/groups.ts

@@ -15,6 +15,7 @@
 import { Injectable } from '@angular/core';
 import { TranslateService } from '@ngx-translate/core';
 import { CoreSitesProvider } from './sites';
+import { CoreCoursesProvider } from '@core/courses/providers/courses';
 
 /**
  * Group info for an activity.
@@ -50,7 +51,8 @@ export class CoreGroupsProvider {
     static VISIBLEGROUPS = 2;
     protected ROOT_CACHE_KEY = 'mmGroups:';
 
-    constructor(private sitesProvider: CoreSitesProvider, private translate: TranslateService) { }
+    constructor(private sitesProvider: CoreSitesProvider, private translate: TranslateService,
+        private coursesProvider: CoreCoursesProvider) { }
 
     /**
      * Check if group mode of an activity is enabled.
@@ -204,6 +206,28 @@ export class CoreGroupsProvider {
         return this.ROOT_CACHE_KEY + 'groupmode:' + cmId;
     }
 
+    /**
+     * Get user groups in all the user enrolled courses.
+     *
+     * @param {string} [siteId] Site to get the groups from. If not defined, use current site.
+     * @return {Promise<any[]>} Promise resolved when the groups are retrieved.
+     */
+    getAllUserGroups(siteId?: string): Promise<any[]> {
+        return this.sitesProvider.getSite(siteId).then((site) => {
+            siteId = siteId || site.getId();
+
+            if (site.isVersionGreaterEqualThan('3.6')) {
+                return this.getUserGroupsInCourse(0, siteId);
+            }
+
+            return this.coursesProvider.getUserCourses(false, siteId).then((courses) => {
+                courses.push({ id: site.getSiteHomeId() }); // Add front page.
+
+                return this.getUserGroups(courses, siteId);
+            });
+        });
+    }
+
     /**
      * Get user groups in all the supplied courses.
      *
@@ -213,33 +237,31 @@ export class CoreGroupsProvider {
      * @return {Promise<any[]>} Promise resolved when the groups are retrieved.
      */
     getUserGroups(courses: any[], siteId?: string, userId?: number): Promise<any[]> {
-        const promises = [];
+        // Get all courses one by one.
-        let groups = [];
+        const promises = courses.map((course) => {
-
-        courses.forEach((course) => {
             const courseId = typeof course == 'object' ? course.id : course;
-            promises.push(this.getUserGroupsInCourse(courseId, siteId, userId).then((courseGroups) => {
+
-                groups = groups.concat(courseGroups);
+            return this.getUserGroupsInCourse(courseId, siteId, userId);
-            }));
         });
 
-        return Promise.all(promises).then(() => {
+        return Promise.all(promises).then((courseGroups) => {
-            return groups;
+            return [].concat(...courseGroups);
         });
     }
 
     /**
      * Get user groups in a course.
      *
-     * @param {number} courseId ID of the course.
+     * @param {number} courseId ID of the course. 0 to get all enrolled courses groups (Moodle version > 3.6).
      * @param {string} [siteId] Site to get the groups from. If not defined, use current site.
      * @param {number} [userId] ID of the user. If not defined, use ID related to siteid.
      * @return {Promise<any[]>} Promise resolved when the groups are retrieved.
      */
     getUserGroupsInCourse(courseId: number, siteId?: string, userId?: number): Promise<any[]> {
         return this.sitesProvider.getSite(siteId).then((site) => {
+            userId = userId || site.getUserId();
             const data = {
-                    userid: userId || site.getUserId(),
+                    userid: userId,
                     courseid: courseId
                 },
                 preSets = {
@@ -256,6 +278,15 @@ export class CoreGroupsProvider {
         });
     }
 
+    /**
+     * Get prefix cache key for  user groups in course WS calls.
+     *
+     * @return {string} Prefix Cache key.
+     */
+    protected getUserGroupsInCoursePrefixCacheKey(): string {
+        return this.ROOT_CACHE_KEY + 'courseGroups:';
+    }
+
     /**
      * Get cache key for user groups in course WS calls.
      *
@@ -264,7 +295,7 @@ export class CoreGroupsProvider {
      * @return {string} Cache key.
      */
     protected getUserGroupsInCourseCacheKey(courseId: number, userId: number): string {
-        return this.ROOT_CACHE_KEY + 'courseGroups:' + courseId + ':' + userId;
+        return this.getUserGroupsInCoursePrefixCacheKey() + courseId + ':' + userId;
     }
 
     /**
@@ -312,6 +343,22 @@ export class CoreGroupsProvider {
         return Promise.all(promises);
     }
 
+    /**
+     * Invalidates user groups in all user enrolled courses.
+     *
+     * @param {string} [siteId] Site ID. If not defined, current site.
+     * @return {Promise<any>} Promise resolved when the data is invalidated.
+     */
+    invalidateAllUserGroups(siteId?: string): Promise<any> {
+        return this.sitesProvider.getSite(siteId).then((site) => {
+            if (site.isVersionGreaterEqualThan('3.6')) {
+                return this.invalidateUserGroupsInCourse(0, siteId);
+            }
+
+            return site.invalidateWsCacheForKeyStartingWith(this.getUserGroupsInCoursePrefixCacheKey());
+        });
+    }
+
     /**
      * Invalidates user groups in courses.
      *
@@ -322,13 +369,12 @@ export class CoreGroupsProvider {
      */
     invalidateUserGroups(courses: any[], siteId?: string, userId?: number): Promise<any> {
         return this.sitesProvider.getSite(siteId).then((site) => {
-            const promises = [];
-
             userId = userId || site.getUserId();
 
-            courses.forEach((course) => {
+            const promises = courses.map((course) => {
                 const courseId = typeof course == 'object' ? course.id : course;
-                promises.push(this.invalidateUserGroupsInCourse(courseId, site.id, userId));
+
+                return this.invalidateUserGroupsInCourse(courseId, site.id, userId);
             });
 
             return Promise.all(promises);
@@ -338,7 +384,7 @@ export class CoreGroupsProvider {
     /**
      * Invalidates user groups in course.
      *
-     * @param {number} courseId Course ID.
+     * @param {number} courseId ID of the course. 0 to get all enrolled courses groups (Moodle version > 3.6).
      * @param {string} [siteId] Site ID. If not defined, current site.
      * @param {number} [userId] User ID. If not defined, use current user.
      * @return {Promise<any>} Promise resolved when the data is invalidated.