From 8fe3e09e9bdd2dbb3d39fe48a8fddbb441b86e87 Mon Sep 17 00:00:00 2001
From: Albert Gasset <albertgasset@fsfe.org>
Date: Tue, 5 Mar 2019 10:59:02 +0100
Subject: [PATCH] MOBILE-2486 forum: Invalidate discussion when a rating is
 updated

---
 .../mod/forum/components/post/addon-mod-forum-post.html  | 2 +-
 src/addon/mod/forum/components/post/post.ts              | 7 +++++++
 src/core/rating/components/rate/rate.ts                  | 9 +++++++--
 3 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/src/addon/mod/forum/components/post/addon-mod-forum-post.html b/src/addon/mod/forum/components/post/addon-mod-forum-post.html
index 253e7208a..19a55682d 100644
--- a/src/addon/mod/forum/components/post/addon-mod-forum-post.html
+++ b/src/addon/mod/forum/components/post/addon-mod-forum-post.html
@@ -23,7 +23,7 @@
         </ng-container>
     </div>
 </ion-card-content>
-<core-rating-rate *ngIf="forum && ratingInfo" [ratingInfo]="ratingInfo" contextLevel="module" [instanceId]="componentId" [itemId]="post.id" [itemSetId]="discussionId" [courseId]="courseId" [aggregateMethod]="forum.assessed" [scaleId]="forum.scale" [userId]="post.userid"></core-rating-rate>
+<core-rating-rate *ngIf="forum && ratingInfo" [ratingInfo]="ratingInfo" contextLevel="module" [instanceId]="componentId" [itemId]="post.id" [itemSetId]="discussionId" [courseId]="courseId" [aggregateMethod]="forum.assessed" [scaleId]="forum.scale" [userId]="post.userid" (onUpdate)="ratingUpdated()"></core-rating-rate>
 <core-rating-aggregate *ngIf="forum && ratingInfo" [ratingInfo]="ratingInfo" contextLevel="module" [instanceId]="componentId" [itemId]="post.id" [courseId]="courseId" [aggregateMethod]="forum.assessed" [scaleId]="forum.scale"></core-rating-aggregate>
 <ion-item no-padding text-end *ngIf="post.id && post.canreply" class="addon-forum-reply-button">
     <button ion-button icon-left clear small (click)="showReply()" [attr.aria-controls]="'addon-forum-reply-edit-form-' + uniqueId" [attr.aria-expanded]="replyData.replyingTo === post.id">
diff --git a/src/addon/mod/forum/components/post/post.ts b/src/addon/mod/forum/components/post/post.ts
index e1d542e3e..d245ddff0 100644
--- a/src/addon/mod/forum/components/post/post.ts
+++ b/src/addon/mod/forum/components/post/post.ts
@@ -307,6 +307,13 @@ export class AddonModForumPostComponent implements OnInit, OnDestroy {
         });
     }
 
+    /**
+     * Function called when rating is updated online.
+     */
+    ratingUpdated(): void {
+        this.forumProvider.invalidateDiscussionPosts(this.discussionId);
+    }
+
     /**
      * Component being destroyed.
      */
diff --git a/src/core/rating/components/rate/rate.ts b/src/core/rating/components/rate/rate.ts
index d2407543f..1a214bfc0 100644
--- a/src/core/rating/components/rate/rate.ts
+++ b/src/core/rating/components/rate/rate.ts
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-import { Component, Input, OnChanges, SimpleChange } from '@angular/core';
+import { Component, EventEmitter, Input, OnChanges, Output, SimpleChange  } from '@angular/core';
 import { TranslateService } from '@ngx-translate/core';
 import { CoreRatingProvider, CoreRatingInfo, CoreRatingInfoItem, CoreRatingScale } from '@core/rating/providers/rating';
 import { CoreDomUtilsProvider } from '@providers/utils/dom';
@@ -35,13 +35,16 @@ export class CoreRatingRateComponent implements OnChanges {
     @Input() aggregateMethod: number;
     @Input() scaleId: number;
     @Input() userId: number;
+    @Output() onUpdate: EventEmitter<void>; // Event emitted when the rating is updated online.
 
     item: CoreRatingInfoItem;
     scale: CoreRatingScale;
     rating: number;
 
     constructor(private domUtils: CoreDomUtilsProvider, private translate: TranslateService,
-            private ratingProvider: CoreRatingProvider, private ratingOffline: CoreRatingOfflineProvider) {}
+            private ratingProvider: CoreRatingProvider, private ratingOffline: CoreRatingOfflineProvider) {
+        this.onUpdate = new EventEmitter<void>();
+    }
 
     /**
      * Detect changes on input properties.
@@ -96,6 +99,8 @@ export class CoreRatingRateComponent implements OnChanges {
                 .then((response) => {
             if (response == null) {
                 this.domUtils.showToast('core.datastoredoffline', true, 3000);
+            } else {
+                this.onUpdate.emit();
             }
         }).catch((error) => {
             this.domUtils.showErrorModal(error);