Edit section in sidebar menu: edit page of selected item / collection / community does not refresh

src/app/collection-page/collection-form/collection-form.component.ts

@@ -1,4 +1,4 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { ChangeDetectorRef, Component, Input, OnChanges, OnInit, SimpleChange, SimpleChanges } from '@angular/core';
 
 import { Observable } from 'rxjs';
 import { TranslateService } from '@ngx-translate/core';
@@ -31,7 +31,7 @@ import { NONE_ENTITY_TYPE } from '../../core/shared/item-relationships/item-type
   styleUrls: ['../../shared/comcol/comcol-forms/comcol-form/comcol-form.component.scss'],
   templateUrl: '../../shared/comcol/comcol-forms/comcol-form/comcol-form.component.html'
 })
-export class CollectionFormComponent extends ComColFormComponent<Collection> implements OnInit {
+export class CollectionFormComponent extends ComColFormComponent<Collection> implements OnInit, OnChanges {
   /**
    * @type {Collection} A new collection when a collection is being created, an existing Input collection when a collection is being edited
    */
@@ -61,12 +61,23 @@ export class CollectionFormComponent extends ComColFormComponent<Collection> imp
                      protected dsoService: CommunityDataService,
                      protected requestService: RequestService,
                      protected objectCache: ObjectCacheService,
-                     protected entityTypeService: EntityTypeDataService) {
+                     protected entityTypeService: EntityTypeDataService,
+                     protected chd: ChangeDetectorRef) {
     super(formService, translate, notificationsService, authService, requestService, objectCache);
   }
 
-  ngOnInit() {
+  /**
+   * Detect changes to the dso and initialize the form,
+   * if the dso changes, exists and it is not the first change
+   */
+  ngOnChanges(changes: SimpleChanges) {
+    const dsoChange: SimpleChange = changes.dso;
+    if (this.dso && dsoChange && !dsoChange.isFirstChange()) {
+      this.initializeForm();
+    }
+  }
 
+  initializeForm() {
     let currentRelationshipValue: MetadataValue[];
     if (this.dso && this.dso.metadata) {
       currentRelationshipValue = this.dso.metadata['dspace.entity.type'];
@@ -96,6 +107,7 @@ export class CollectionFormComponent extends ComColFormComponent<Collection> imp
         this.formModel = [...collectionFormModels, this.entityTypeSelection];
 
         super.ngOnInit();
+        this.chd.detectChanges();
     });
 
   }

src/app/collection-page/edit-collection-page/collection-metadata/collection-metadata.component.spec.ts

@@ -4,7 +4,7 @@ import { SharedModule } from '../../../shared/shared.module';
 import { CommonModule } from '@angular/common';
 import { RouterTestingModule } from '@angular/router/testing';
 import { CollectionDataService } from '../../../core/data/collection-data.service';
-import { ActivatedRoute, Router } from '@angular/router';
+import { ActivatedRoute, NavigationEnd, Router } from '@angular/router';
 import { of as observableOf } from 'rxjs';
 import { NO_ERRORS_SCHEMA } from '@angular/core';
 import { CollectionMetadataComponent } from './collection-metadata.component';
@@ -52,6 +52,11 @@ describe('CollectionMetadataComponent', () => {
     setStaleByHrefSubstring: {}
   });
 
+  const routerMock = {
+    events: observableOf(new NavigationEnd(1, 'url', 'url')),
+    navigate: jasmine.createSpy('navigate'),
+  };
+
   beforeEach(waitForAsync(() => {
     TestBed.configureTestingModule({
       imports: [TranslateModule.forRoot(), SharedModule, CommonModule, RouterTestingModule],
@@ -62,6 +67,7 @@ describe('CollectionMetadataComponent', () => {
         { provide: ActivatedRoute, useValue: { parent: { data: observableOf({ dso: createSuccessfulRemoteDataObject(collection) }) } } },
         { provide: NotificationsService, useValue: notificationsService },
         { provide: RequestService, useValue: requestService },
+        { provide: Router, useValue: routerMock}
       ],
       schemas: [NO_ERRORS_SCHEMA]
     }).compileComponents();
@@ -70,8 +76,11 @@ describe('CollectionMetadataComponent', () => {
   beforeEach(() => {
     fixture = TestBed.createComponent(CollectionMetadataComponent);
     comp = fixture.componentInstance;
-    router = (comp as any).router;
     itemTemplateService = (comp as any).itemTemplateService;
+    spyOn(comp, 'ngOnInit');
+    spyOn(comp, 'initTemplateItem');
+
+    routerMock.events = observableOf(new NavigationEnd(1, 'url', 'url'));
     fixture.detectChanges();
   });
 
@@ -83,9 +92,8 @@ describe('CollectionMetadataComponent', () => {
 
   describe('addItemTemplate', () => {
     it('should navigate to the collection\'s itemtemplate page', () => {
-      spyOn(router, 'navigate');
       comp.addItemTemplate();
-      expect(router.navigate).toHaveBeenCalledWith([getCollectionItemTemplateRoute(collection.uuid)]);
+      expect(routerMock.navigate).toHaveBeenCalledWith([getCollectionItemTemplateRoute(collection.uuid)]);
     });
   });
 

src/app/collection-page/edit-collection-page/collection-metadata/collection-metadata.component.ts

@@ -1,8 +1,8 @@
-import { Component } from '@angular/core';
+import { ChangeDetectorRef, Component, OnInit } from '@angular/core';
 import { ComcolMetadataComponent } from '../../../shared/comcol/comcol-forms/edit-comcol-page/comcol-metadata/comcol-metadata.component';
 import { Collection } from '../../../core/shared/collection.model';
 import { CollectionDataService } from '../../../core/data/collection-data.service';
-import { ActivatedRoute, Router } from '@angular/router';
+import { ActivatedRoute, NavigationEnd, Router, Scroll } from '@angular/router';
 import { ItemTemplateDataService } from '../../../core/data/item-template-data.service';
 import { combineLatest as combineLatestObservable, Observable } from 'rxjs';
 import { RemoteData } from '../../../core/data/remote-data';
@@ -23,7 +23,7 @@ import { hasValue } from '../../../shared/empty.util';
   selector: 'ds-collection-metadata',
   templateUrl: './collection-metadata.component.html',
 })
-export class CollectionMetadataComponent extends ComcolMetadataComponent<Collection> {
+export class CollectionMetadataComponent extends ComcolMetadataComponent<Collection> implements OnInit {
   protected frontendURL = '/collections/';
   protected type = Collection.type;
 
@@ -40,13 +40,27 @@ export class CollectionMetadataComponent extends ComcolMetadataComponent<Collect
     protected notificationsService: NotificationsService,
     protected translate: TranslateService,
     protected requestService: RequestService,
+    protected chd: ChangeDetectorRef
   ) {
     super(collectionDataService, router, route, notificationsService, translate);
   }
 
+  /**
+   * Cheking if the navigation is done and if so, initialize the collection's item template,
+   * to ensure that the item template is always up to date.
+   * Check when a NavigationEnd event (URL change) or a Scroll event followed by a NavigationEnd event (refresh event), occurs
+   */
   ngOnInit(): void {
-    super.ngOnInit();
-    this.initTemplateItem();
+    this.router.events.subscribe((event) => {
+      if (
+        event instanceof NavigationEnd ||
+        (event instanceof Scroll && event.routerEvent instanceof NavigationEnd)
+      ) {
+        super.ngOnInit();
+        this.initTemplateItem();
+        this.chd.detectChanges();
+      }
+    });
   }
 
   /**

src/app/community-page/community-form/community-form.component.ts

@@ -1,4 +1,4 @@
-import { Component, Input } from '@angular/core';
+import { Component, Input, OnChanges, SimpleChange, SimpleChanges } from '@angular/core';
 import {
   DynamicFormControlModel,
   DynamicFormService,
@@ -23,7 +23,7 @@ import { environment } from '../../../environments/environment';
   styleUrls: ['../../shared/comcol/comcol-forms/comcol-form/comcol-form.component.scss'],
   templateUrl: '../../shared/comcol/comcol-forms/comcol-form/comcol-form.component.html'
 })
-export class CommunityFormComponent extends ComColFormComponent<Community> {
+export class CommunityFormComponent extends ComColFormComponent<Community> implements OnChanges {
   /**
    * @type {Community} A new community when a community is being created, an existing Input community when a community is being edited
    */
@@ -81,4 +81,11 @@ export class CommunityFormComponent extends ComColFormComponent<Community> {
                      protected objectCache: ObjectCacheService) {
     super(formService, translate, notificationsService, authService, requestService, objectCache);
   }
+
+  ngOnChanges(changes: SimpleChanges) {
+    const dsoChange: SimpleChange = changes.dso;
+    if (this.dso && dsoChange && !dsoChange.isFirstChange()) {
+       super.ngOnInit();
+    }
+  }
 }

src/app/item-page/edit-item-page/item-status/item-status.component.ts

@@ -3,7 +3,7 @@ import { fadeIn, fadeInOut } from '../../../shared/animations/fade';
 import { Item } from '../../../core/shared/item.model';
 import { ActivatedRoute } from '@angular/router';
 import { ItemOperation } from '../item-operation/itemOperation.model';
-import { distinctUntilChanged, first, map, mergeMap, switchMap, toArray } from 'rxjs/operators';
+import { distinctUntilChanged, map, mergeMap, switchMap, toArray } from 'rxjs/operators';
 import { BehaviorSubject, Observable, Subscription } from 'rxjs';
 import { RemoteData } from '../../../core/data/remote-data';
 import { getItemEditRoute, getItemPageRoute } from '../../item-page-routing-paths';
@@ -82,7 +82,6 @@ export class ItemStatusComponent implements OnInit {
   ngOnInit(): void {
     this.itemRD$ = this.route.parent.data.pipe(map((data) => data.dso));
     this.itemRD$.pipe(
-      first(),
       map((data: RemoteData<Item>) => data.payload)
     ).subscribe((item: Item) => {
       this.statusData = Object.assign({

src/app/shared/comcol/comcol-forms/comcol-form/comcol-form.component.ts

@@ -127,39 +127,41 @@ export class ComColFormComponent<T extends Collection | Community> implements On
   }
 
   ngOnInit(): void {
-    this.formModel.forEach(
-      (fieldModel: DynamicInputModel) => {
-        fieldModel.value = this.dso.firstMetadataValue(fieldModel.name);
-      }
-    );
-    this.formGroup = this.formService.createFormGroup(this.formModel);
+    if (hasValue(this.formModel)) {
+      this.formModel.forEach(
+        (fieldModel: DynamicInputModel) => {
+          fieldModel.value = this.dso.firstMetadataValue(fieldModel.name);
+        }
+      );
+      this.formGroup = this.formService.createFormGroup(this.formModel);
 
-    this.updateFieldTranslations();
-    this.translate.onLangChange
-      .subscribe(() => {
-        this.updateFieldTranslations();
-      });
+      this.updateFieldTranslations();
+      this.translate.onLangChange
+        .subscribe(() => {
+          this.updateFieldTranslations();
+        });
 
-    if (hasValue(this.dso.id)) {
-      this.subs.push(
-        observableCombineLatest([
-          this.dsoService.getLogoEndpoint(this.dso.id),
-          this.dso.logo
-        ]).subscribe(([href, logoRD]: [string, RemoteData<Bitstream>]) => {
-          this.uploadFilesOptions.url = href;
-          this.uploadFilesOptions.authToken = this.authService.buildAuthHeader();
-          // If the object already contains a logo, send out a PUT request instead of POST for setting a new logo
-          if (hasValue(logoRD.payload)) {
-            this.uploadFilesOptions.method = RestRequestMethod.PUT;
-          }
-          this.initializedUploaderOptions.next(true);
-        })
-      );
-    } else {
-      // Set a placeholder URL to not break the uploader component. This will be replaced once the object is created.
-      this.uploadFilesOptions.url = 'placeholder';
-      this.uploadFilesOptions.authToken = this.authService.buildAuthHeader();
-      this.initializedUploaderOptions.next(true);
+      if (hasValue(this.dso.id)) {
+        this.subs.push(
+          observableCombineLatest([
+            this.dsoService.getLogoEndpoint(this.dso.id),
+            this.dso.logo
+          ]).subscribe(([href, logoRD]: [string, RemoteData<Bitstream>]) => {
+            this.uploadFilesOptions.url = href;
+            this.uploadFilesOptions.authToken = this.authService.buildAuthHeader();
+            // If the object already contains a logo, send out a PUT request instead of POST for setting a new logo
+            if (hasValue(logoRD.payload)) {
+              this.uploadFilesOptions.method = RestRequestMethod.PUT;
+            }
+            this.initializedUploaderOptions.next(true);
+          })
+        );
+      } else {
+        // Set a placeholder URL to not break the uploader component. This will be replaced once the object is created.
+        this.uploadFilesOptions.url = 'placeholder';
+        this.uploadFilesOptions.authToken = this.authService.buildAuthHeader();
+        this.initializedUploaderOptions.next(true);
+      }
     }
   }
 

src/app/shared/comcol/comcol-forms/edit-comcol-page/comcol-metadata/comcol-metadata.component.ts

@@ -3,7 +3,7 @@ import { DSpaceObject } from '../../../../../core/shared/dspace-object.model';
 import { Observable } from 'rxjs';
 import { RemoteData } from '../../../../../core/data/remote-data';
 import { ActivatedRoute, Router } from '@angular/router';
-import { first, map, take } from 'rxjs/operators';
+import { map, take } from 'rxjs/operators';
 import { getFirstCompletedRemoteData, getFirstSucceededRemoteData } from '../../../../../core/shared/operators';
 import { hasValue, isEmpty } from '../../../../empty.util';
 import { ResourceType } from '../../../../../core/shared/resource-type';
@@ -42,7 +42,7 @@ export class ComcolMetadataComponent<TDomain extends Community | Collection> imp
   }
 
   ngOnInit(): void {
-    this.dsoRD$ = this.route.parent.data.pipe(first(), map((data) => data.dso));
+    this.dsoRD$ = this.route.parent.data.pipe(map((data) => data.dso));
   }
 
   /**

src/app/shared/comcol/comcol-forms/edit-comcol-page/edit-comcol-page.component.ts

@@ -1,7 +1,7 @@
 import { Component, OnInit } from '@angular/core';
 
 import { Observable } from 'rxjs';
-import { first, map } from 'rxjs/operators';
+import { map } from 'rxjs/operators';
 
 import { ActivatedRoute, Router } from '@angular/router';
 import { RemoteData } from '../../../../core/data/remote-data';
@@ -53,7 +53,7 @@ export class EditComColPageComponent<TDomain extends DSpaceObject> implements On
     this.pages = this.route.routeConfig.children
       .map((child: any) => child.path)
       .filter((path: string) => isNotEmpty(path)); // ignore reroutes
-    this.dsoRD$ = this.route.data.pipe(first(), map((data) => data.dso));
+    this.dsoRD$ = this.route.data.pipe(map((data) => data.dso));
   }
 
   /**