MOBILE-2431 courses: Fix course options not available

src/core/course/providers/options-delegate.ts

@@ -395,7 +395,9 @@ export class CoreCourseOptionsDelegate extends CoreDelegate {
      * @return {Promise<void>} Promise resolved when done.
      */
     protected loadCourseOptions(course: any, refresh?: boolean): Promise<void> {
-        if (typeof course.navOptions == 'undefined' || typeof course.admOptions == 'undefined' || refresh) {
+        if (this.coursesProvider.canGetAdminAndNavOptions() &&
+                (typeof course.navOptions == 'undefined' || typeof course.admOptions == 'undefined' || refresh)) {
+
             return this.coursesProvider.getCoursesAdminAndNavOptions([course.id]).then((options) => {
                 course.navOptions = options.navOptions[course.id];
                 course.admOptions = options.admOptions[course.id];

src/core/courses/pages/my-courses/my-courses.ts

@@ -111,12 +111,14 @@ export class CoreCoursesMyCoursesPage implements OnDestroy {
                 }));
             }
 
+            if (this.coursesProvider.canGetAdminAndNavOptions()) {
                 promises.push(this.coursesProvider.getCoursesAdminAndNavOptions(courseIds).then((options) => {
                     courses.forEach((course) => {
                         course.navOptions = options.navOptions[course.id];
                         course.admOptions = options.admOptions[course.id];
                     });
                 }));
+            }
 
             return Promise.all(promises).then(() => {
                 this.courses = courses;

src/core/courses/pages/my-overview/my-overview.ts

@@ -223,6 +223,7 @@ export class CoreCoursesMyOverviewPage implements OnDestroy {
                 return course.id;
             });
 
+            if (this.coursesProvider.canGetAdminAndNavOptions()) {
                 // Load course options of the course.
                 promises.push(this.coursesProvider.getCoursesAdminAndNavOptions(courseIds).then((options) => {
                     courses.forEach((course) => {
@@ -230,6 +231,7 @@ export class CoreCoursesMyOverviewPage implements OnDestroy {
                         course.admOptions = options.admOptions[course.id];
                     });
                 }));
+            }
 
             this.courseIds = courseIds.join(',');
 

src/core/courses/providers/courses.ts

@@ -33,6 +33,16 @@ export class CoreCoursesProvider {
         this.logger = logger.getInstance('CoreCoursesProvider');
     }
 
+    /**
+     * Whether current site supports getting course options.
+     *
+     * @return {boolean} Whether current site supports getting course options.
+     */
+    canGetAdminAndNavOptions(): boolean {
+        return this.sitesProvider.wsAvailableInCurrentSite('core_course_get_user_navigation_options') &&
+                this.sitesProvider.wsAvailableInCurrentSite('core_course_get_user_administration_options');
+    }
+
     /**
      * Get categories. They can be filtered by id.
      *

src/core/user/providers/user-delegate.ts

@@ -213,21 +213,33 @@ export class CoreUserDelegate extends CoreDelegate {
      * @return {Subject<CoreUserProfileHandlerToDisplay[]>} Resolved with the handlers.
      */
     getProfileHandlersFor(user: any, courseId: number): Subject<CoreUserProfileHandlerToDisplay[]> {
-        const promises = [];
+        let promise,
+            navOptions,
+            admOptions;
 
-        this.userHandlers = [];
+        if (this.coursesProvider.canGetAdminAndNavOptions()) {
-
+            // Get course options.
-        // Retrieve course options forcing cache.
+            promise = this.coursesProvider.getUserCourses(true).then((courses) => {
-        this.coursesProvider.getUserCourses(true).then((courses) => {
                 const courseIds = courses.map((course) => {
                     return course.id;
                 });
 
                 return this.coursesProvider.getCoursesAdminAndNavOptions(courseIds).then((options) => {
                     // For backwards compatibility we don't modify the courseId.
-                const courseIdForOptions = courseId || this.sitesProvider.getCurrentSiteHomeId(),
+                    const courseIdForOptions = courseId || this.sitesProvider.getCurrentSiteHomeId();
-                    navOptions = options.navOptions[courseIdForOptions],
+
+                    navOptions = options.navOptions[courseIdForOptions];
                     admOptions = options.admOptions[courseIdForOptions];
+                });
+            });
+        } else {
+            promise = Promise.resolve();
+        }
+
+        this.userHandlers = [];
+
+        promise.then(() => {
+            const promises = [];
 
             for (const name in this.enabledHandlers) {
                 // Checks if the handler is enabled for the user.
@@ -258,7 +270,6 @@ export class CoreUserDelegate extends CoreDelegate {
                 this.loaded = true;
                 this.observableHandlers.next(this.userHandlers);
             });
-            });
         }).catch(() => {
             // Never fails.
             this.loaded = true;