MOBILE-4122 about: Check user role to hide survey

src/core/classes/site.ts

@@ -388,6 +388,16 @@ export class CoreSite {
         this.oauthId = oauthId;
     }
 
+    /**
+     * Check if current user is Admin.
+     * Works properly since v3.8. See more in: {@link} https://tracker.moodle.org/browse/MDL-65550
+     *
+     * @returns Whether the user is Admin.
+     */
+    isAdmin(): boolean {
+        return this.getInfo()?.userissiteadmin ?? false;
+    }
+
     /**
      * Check if the user authenticated in the site using an OAuth method.
      *

src/core/features/settings/pages/about/about.html

@@ -27,8 +27,8 @@
             <ion-icon name="fas-universal-access" slot="start" aria-hidden="true"></ion-icon>
             <ion-label>{{ 'core.settings.accessstatement' | translate }}</ion-label>
         </ion-item>
-        <ion-item *ngIf="currentSite && feedbackFormUrl" class="ion-text-wrap" button core-link [href]="feedbackFormUrl" detail="true"
+        <ion-item *ngIf="currentSite && feedbackFormUrl && showSurvey" class="ion-text-wrap" button core-link [href]="feedbackFormUrl"
-            detailIcon="open-outline">
+            detail="true" detailIcon="open-outline">
             <ion-icon name="fas-bullhorn" slot="start" aria-hidden="true"></ion-icon>
             <ion-label>{{ 'core.settings.helpusimprove' | translate }}</ion-label>
         </ion-item>

src/core/features/settings/pages/about/about.ts

@@ -35,6 +35,7 @@ export class CoreSettingsAboutPage {
     feedbackFormUrl = CoreConstants.CONFIG.feedbackFormUrl ?? 'https://feedback.moodle.org/mobileapp';
     a11yStatement = CoreConstants.CONFIG.a11yStatement ?? 'https://apps.moodle.com/admin/tool/policy/view.php?versionid=5';
     currentSite?: CoreSite;
+    showSurvey: boolean | undefined = false;
 
     constructor() {
         this.currentSite = CoreSites.getCurrentSite();
@@ -45,6 +46,7 @@ export class CoreSettingsAboutPage {
         // Calculate the privacy policy to use.
         this.privacyPolicy = (this.currentSite && (this.currentSite.getStoredConfig('tool_mobile_apppolicy') ||
         this.currentSite.getStoredConfig('sitepolicy'))) || CoreConstants.CONFIG.privacypolicy;
+        this.showSurvey = this.currentSite?.isAdmin();
     }
 
     /**