MOBILE-3475 core: Prevent errors when calling isVersionGreaterEqualThan

src/addon/block/myoverview/providers/block-handler.ts

@@ -37,7 +37,7 @@ export class AddonBlockMyOverviewHandler extends CoreBlockBaseHandler {
      * @return Whether or not the handler is enabled on a site level.
      */
     isEnabled(): boolean | Promise<boolean> {
-        return this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.6') ||
+        return (this.sitesProvider.getCurrentSite() && this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.6')) ||
             !this.coursesProvider.isMyCoursesDisabledInSite();
     }
 

src/addon/block/timeline/providers/block-handler.ts

@@ -41,7 +41,9 @@ export class AddonBlockTimelineHandler extends CoreBlockBaseHandler {
      */
     isEnabled(): boolean | Promise<boolean> {
         return this.timelineProvider.isAvailable().then((enabled) => {
-            return enabled && (this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.6') ||
+            const currentSite = this.sitesProvider.getCurrentSite();
+
+            return enabled && ((currentSite && currentSite.isVersionGreaterEqualThan('3.6')) ||
                 !this.coursesProvider.isMyCoursesDisabledInSite());
         });
     }

src/addon/calendar/providers/calendar.ts

@@ -393,7 +393,7 @@ export class AddonCalendarProvider {
         site = site || this.sitesProvider.getCurrentSite();
 
         // The WS to create/edit events requires a fix that was integrated in 3.7.1.
-        return site.isVersionGreaterEqualThan('3.7.1');
+        return site && site.isVersionGreaterEqualThan('3.7.1');
     }
 
     /**

src/addon/filter/multilang/providers/handler.ts

@@ -83,6 +83,6 @@ export class AddonFilterMultilangHandler extends CoreFilterDefaultHandler {
      */
     shouldBeApplied(options: CoreFilterFormatTextOptions, site?: CoreSite): boolean {
         // The filter should be applied if site is older than 3.7 or the WS didn't filter the text.
-        return options.wsNotFiltered || !site.isVersionGreaterEqualThan('3.7');
+        return options.wsNotFiltered || (site && !site.isVersionGreaterEqualThan('3.7'));
     }
 }

src/addon/mod/assign/components/index/index.ts

@@ -207,9 +207,10 @@ export class AddonModAssignIndexComponent extends CoreCourseModuleMainActivityCo
 
                     // Check if groupmode is enabled to avoid showing wrong numbers.
                     return this.groupsProvider.getActivityGroupInfo(this.assign.cmid, false).then((groupInfo) => {
+                        const currentSite = this.sitesProvider.getCurrentSite();
                         this.groupInfo = groupInfo;
                         this.showNumbers = groupInfo.groups.length == 0 ||
-                            this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.5');
+                            (currentSite && currentSite.isVersionGreaterEqualThan('3.5'));
 
                         return this.setGroup(this.groupsProvider.validateGroupId(this.group, groupInfo));
                     });
@@ -258,8 +259,10 @@ export class AddonModAssignIndexComponent extends CoreCourseModuleMainActivityCo
                 }
             }
 
+            const currentSite = this.sitesProvider.getCurrentSite();
+
             this.needsGradingAvalaible = response.gradingsummary && response.gradingsummary.submissionsneedgradingcount > 0 &&
-                    this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
+                    currentSite && currentSite.isVersionGreaterEqualThan('3.2');
         });
     }
 

src/addon/mod/assign/submission/onlinetext/providers/handler.ts

@@ -225,7 +225,7 @@ export class AddonModAssignSubmissionOnlineTextHandler implements AddonModAssign
         // Bug was fixed in 3.1.1 minor release and in 3.2.
         const currentSite = this.sitesProvider.getCurrentSite();
 
-        return currentSite.isVersionGreaterEqualThan('3.1.1') || currentSite.checkIfAppUsesLocalMobile();
+        return currentSite && (currentSite.isVersionGreaterEqualThan('3.1.1') || currentSite.checkIfAppUsesLocalMobile());
     }
 
     /**

src/addon/mod/forum/providers/forum.ts

@@ -291,7 +291,8 @@ export class AddonModForumProvider {
      * @return True if fixed, false otherwise.
      */
     isAllParticipantsFixed(): boolean {
-        return this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan(['3.1.5', '3.2.2']);
+        return this.sitesProvider.getCurrentSite() &&
+                this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan(['3.1.5', '3.2.2']);
     }
 
     /**
@@ -543,7 +544,7 @@ export class AddonModForumProvider {
     isDiscussionListSortingAvailable(site?: CoreSite): boolean {
         site = site || this.sitesProvider.getCurrentSite();
 
-        return site.isVersionGreaterEqualThan('3.7');
+        return site && site.isVersionGreaterEqualThan('3.7');
     }
 
     /**

src/addon/mod/forum/providers/prefetch-handler.ts

@@ -87,7 +87,8 @@ export class AddonModForumPrefetchHandler extends CoreCourseActivityPrefetchHand
      */
     protected getPostsFiles(posts: any[]): any[] {
         let files = [];
-        const getInlineFiles = this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
+        const getInlineFiles = this.sitesProvider.getCurrentSite() &&
+                this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
 
         posts.forEach((post) => {
             if (post.attachments && post.attachments.length) {

src/addon/mod/glossary/providers/prefetch-handler.ts

@@ -86,7 +86,8 @@ export class AddonModGlossaryPrefetchHandler extends CoreCourseActivityPrefetchH
      */
     protected getFilesFromGlossaryAndEntries(module: any, glossary: any, entries: any[]): any[] {
         let files = this.getIntroFilesFromInstance(module, glossary);
-        const getInlineFiles = this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
+        const getInlineFiles = this.sitesProvider.getCurrentSite() &&
+                this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
 
         // Get entries files.
         entries.forEach((entry) => {

src/addon/mod/quiz/providers/prefetch-handler.ts

@@ -110,8 +110,9 @@ export class AddonModQuizPrefetchHandler extends CoreCourseActivityPrefetchHandl
      */
     protected getAttemptsFeedbackFiles(quiz: any, attempts: any[]): Promise<any[]> {
         // We have quiz data, now we'll get specific data for each attempt.
-        const promises = [],
-            getInlineFiles = this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
+        const promises = [];
+        const getInlineFiles = this.sitesProvider.getCurrentSite() &&
+                this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.2');
         let files = [];
 
         attempts.forEach((attempt) => {

src/addon/mod/resource/providers/helper.ts

@@ -104,8 +104,10 @@ export class AddonModResourceHelperProvider {
      * @return Whether the resource should be displayed embeded.
      */
     isDisplayedEmbedded(module: any, display: number): boolean {
+        const currentSite = this.sitesProvider.getCurrentSite();
+
         if ((!module.contents.length && !module.contentsinfo) || !this.fileProvider.isAvailable() ||
-                (!this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7') && this.isNextcloudFile(module))) {
+                (currentSite && !currentSite.isVersionGreaterEqualThan('3.7') && this.isNextcloudFile(module))) {
             return false;
         }
 

src/addon/mod/resource/providers/prefetch-handler.ts

@@ -147,7 +147,7 @@ export class AddonModResourcePrefetchHandler extends CoreCourseResourcePrefetchH
      * @return Promise resolved with true if downloadable, resolved with false otherwise.
      */
     isDownloadable(module: any, courseId: number): Promise<boolean> {
-        if (this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
+        if (this.sitesProvider.getCurrentSite() && this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
             // Nextcloud files are downloadable from 3.7 onwards.
             return Promise.resolve(true);
         }

src/core/course/providers/course.ts

@@ -122,7 +122,7 @@ export class CoreCourseProvider {
     canGetCourseBlocks(site?: CoreSite): boolean {
         site = site || this.sitesProvider.getCurrentSite();
 
-        return site.isVersionGreaterEqualThan('3.7') && site.wsAvailable('core_block_get_course_blocks');
+        return site && site.isVersionGreaterEqualThan('3.7') && site.wsAvailable('core_block_get_course_blocks');
     }
 
     /**
@@ -135,7 +135,7 @@ export class CoreCourseProvider {
     canRequestStealthModules(site?: CoreSite): boolean {
         site = site || this.sitesProvider.getCurrentSite();
 
-        return site.isVersionGreaterEqualThan(['3.4.6', '3.5.3']);
+        return site && site.isVersionGreaterEqualThan(['3.4.6', '3.5.3']);
     }
 
     /**

src/core/course/providers/sync.ts

@@ -197,7 +197,9 @@ export class CoreCourseSyncProvider extends CoreSyncBaseProvider {
             if (result.updated) {
                 // Update data.
                 return this.courseProvider.invalidateSections(courseId, siteId).then(() => {
-                    if (this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.6')) {
+                    const currentSite = this.sitesProvider.getCurrentSite();
+
+                    if (currentSite && currentSite.isVersionGreaterEqualThan('3.6')) {
                         return this.courseProvider.getSections(courseId, false, true, undefined, siteId);
                     } else {
                         return this.courseProvider.getActivitiesCompletionStatus(courseId, siteId);

src/core/courses/pages/course-preview/course-preview.ts

@@ -235,7 +235,7 @@ export class CoreCoursesCoursePreviewPage implements OnDestroy {
                 });
             });
         }).finally(() => {
-            if (!this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
+            if (this.sitesProvider.getCurrentSite() && !this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
                 return this.coursesProvider.isGetCoursesByFieldAvailableInSite().then((available) => {
                     if (available) {
                         return this.coursesProvider.getCourseByField('id', this.course.id).then((course) => {
@@ -402,7 +402,7 @@ export class CoreCoursesCoursePreviewPage implements OnDestroy {
         promises.push(this.coursesProvider.invalidateCourse(this.course.id));
         promises.push(this.coursesProvider.invalidateCourseEnrolmentMethods(this.course.id));
         promises.push(this.courseOptionsDelegate.clearAndInvalidateCoursesOptions(this.course.id));
-        if (this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
+        if (this.sitesProvider.getCurrentSite() && !this.sitesProvider.getCurrentSite().isVersionGreaterEqualThan('3.7')) {
             promises.push(this.coursesProvider.invalidateCoursesByField('id', this.course.id));
         }
         if (this.guestInstanceId) {

src/core/courses/providers/helper.ts

@@ -114,7 +114,7 @@ export class CoreCoursesHelperProvider {
             promises = [],
             colors = [];
 
-        if (site.isVersionGreaterEqualThan('3.8')) {
+        if (site && site.isVersionGreaterEqualThan('3.8')) {
             promises.push(site.getConfig().then((configs) => {
                 for (let x = 0; x < 10; x++) {
                     colors[x] = configs['core_admin_coursecolor' + (x + 1)] || null;

src/directives/format-text.ts

@@ -711,7 +711,7 @@ export class CoreFormatTextDirective implements OnChanges {
                 }
 
                 // Width and height parameters are required in 3.6 and older sites.
-                if (!site.isVersionGreaterEqualThan('3.7')) {
+                if (site && !site.isVersionGreaterEqualThan('3.7')) {
                     newUrl += '&width=' + width + '&height=' + height;
                 }
                 iframe.src = newUrl;