MOBILE-3320 wiki: Fix wiki links

src/addons/mod/wiki/pages/edit/edit.ts

@@ -42,8 +42,8 @@ export class AddonModWikiEditPage implements OnInit, OnDestroy, CanLeave {
 
     @ViewChild('editPageForm') formElement?: ElementRef;
 
-    cmId!: number; // Course module ID.
+    cmId?: number; // Course module ID.
-    courseId!: number; // Course the wiki belongs to.
+    courseId?: number; // Course the wiki belongs to.
     title?: string; // Title to display.
     pageForm?: FormGroup; // The form group.
     contentControl?: FormControl; // The FormControl for the page content.
@@ -77,8 +77,8 @@ export class AddonModWikiEditPage implements OnInit, OnDestroy, CanLeave {
      * @inheritdoc
      */
     async ngOnInit(): Promise<void> {
-        this.cmId = CoreNavigator.getRouteNumberParam('cmId')!;
+        this.cmId = CoreNavigator.getRouteNumberParam('cmId') || undefined;
-        this.courseId = CoreNavigator.getRouteNumberParam('courseId')!;
+        this.courseId = CoreNavigator.getRouteNumberParam('courseId') || undefined;
         this.subwikiId = CoreNavigator.getRouteNumberParam('subwikiId');
         this.wikiId = CoreNavigator.getRouteNumberParam('wikiId');
         this.pageId = CoreNavigator.getRouteNumberParam('pageId');
@@ -162,6 +162,8 @@ export class AddonModWikiEditPage implements OnInit, OnDestroy, CanLeave {
                 this.userId = pageContents.userid;
                 canEdit = pageContents.caneditpage;
 
+                await this.fetchModuleAndCourseId();
+
                 // Get subwiki files, needed to replace URLs for rich text editor.
                 this.subwikiFiles = await AddonModWiki.getSubwikiFiles(this.wikiId, {
                     groupId: this.groupId,
@@ -190,8 +192,10 @@ export class AddonModWikiEditPage implements OnInit, OnDestroy, CanLeave {
                 this.editing = false;
                 canEdit = !!this.blockId; // If no blockId, the user cannot edit the page.
 
-                // Make sure we have the wiki ID.
+                await this.fetchModuleAndCourseId();
-                if (!this.wikiId) {
+
+                // Try to get wikiId.
+                if (!this.wikiId && this.cmId && this.courseId) {
                     const module = await CoreCourse.getModule(this.cmId, this.courseId, undefined, true);
 
                     this.wikiId = module.instance;
@@ -248,6 +252,22 @@ export class AddonModWikiEditPage implements OnInit, OnDestroy, CanLeave {
         }
     }
 
+    /**
+     * Load cmId and courseId if they aren't set.
+     *
+     * @return Promise.
+     */
+    protected async fetchModuleAndCourseId(): Promise<void> {
+        if (!this.wikiId || (this.cmId && this.courseId)) {
+            return;
+        }
+
+        const module = await CoreCourse.getModuleBasicInfoByInstance(this.wikiId, 'wiki');
+
+        this.cmId = module.id;
+        this.courseId = module.course;
+    }
+
     /**
      * Force leaving the page, without checking for changes.
      */

src/addons/mod/wiki/services/handlers/create-link.ts

@@ -14,7 +14,6 @@
 
 import { Injectable } from '@angular/core';
 import { ActivatedRoute } from '@angular/router';
-import { CoreError } from '@classes/errors/error';
 import { CoreContentLinksHandlerBase } from '@features/contentlinks/classes/base-handler';
 import { CoreContentLinksAction } from '@features/contentlinks/services/contentlinks-delegate';
 import { CoreCourse } from '@features/course/services/course';
@@ -106,29 +105,27 @@ export class AddonModWikiCreateLinkHandlerService extends CoreContentLinksHandle
                     const route = CoreNavigator.getCurrentRoute({ pageComponent: AddonModWikiIndexPage });
                     const subwikiId = parseInt(params.swid, 10);
                     const wikiId = parseInt(params.wid, 10);
-                    let moduleId: number;
+                    let path = AddonModWikiModuleHandlerService.PAGE_NAME;
 
                     // Check if the link is inside the same wiki.
                     const isSameWiki = await this.currentStateIsSameWiki(route, subwikiId, siteId);
 
                     if (isSameWiki) {
                         // User is seeing the wiki, we can get the module from the wiki params.
-                        moduleId = route!.snapshot.params.cmId;
+                        path = path + `/${route!.snapshot.params.courseId}/${route!.snapshot.params.cmId}/edit`;
-                        courseId = route!.snapshot.params.courseId;
                     } else if (wikiId) {
                         // The URL specifies which wiki it belongs to. Get the module.
                         const module = await CoreCourse.getModuleBasicInfoByInstance(wikiId, 'wiki', siteId);
 
-                        moduleId = module.id;
+                        path = path + `/${module.course}/${module.id}/edit`;
-                        courseId = module.course;
                     } else {
-                        // Not enough data.
+                        // Cannot get module ID.
-                        throw new CoreError();
+                        path = path + `/${courseId || 0}/0/edit`;
                     }
 
                     // Open the page.
                     CoreNavigator.navigateToSitePath(
-                        AddonModWikiModuleHandlerService.PAGE_NAME + `/${courseId}/${moduleId}/edit`,
+                        path,
                         {
                             params: {
                                 pageTitle: params.title,

src/addons/mod/wiki/services/handlers/page-or-map-link.ts

@@ -70,6 +70,7 @@ export class AddonModWikiPageOrMapLinkHandlerService extends CoreContentLinksHan
                         AddonModWikiModuleHandlerService.PAGE_NAME + `/${courseId}/${module.id}/page/${hash}`,
                         {
                             params: {
+                                module,
                                 pageId: page.id,
                                 pageTitle: page.title,
                                 subwikiId: page.subwikiid,

src/addons/mod/wiki/services/wiki.ts

@@ -1216,8 +1216,8 @@ export type AddonModWikiPageCreatedData = {
  * Data about a page that was just edited.
  */
 export type AddonModWikiEditedPageData = {
-    cmId: number;
+    cmId?: number;
-    courseId: number;
+    courseId?: number;
     wikiId: number;
     pageTitle: string;
     subwikiId?: number;

src/core/services/utils/dom.ts

@@ -1409,7 +1409,11 @@ export class CoreDomUtilsProvider {
             errorMessage = CoreTextUtils.getErrorMessageFromError(error);
         }
 
-        return this.showErrorModal(typeof errorMessage == 'string' ? error! : defaultError, needsTranslate, autocloseTime);
+        return this.showErrorModal(
+            typeof errorMessage == 'string' && errorMessage ? error! : defaultError,
+            needsTranslate,
+            autocloseTime,
+        );
     }
 
     /**