Added thumbnail followLinks for ds-edit-relationship-list

src/app/core/data/relationship-data.service.ts

@@ -525,14 +525,14 @@ export class RelationshipDataService extends IdentifiableDataService<Relationshi
         {
           fieldName: 'relatedItem',
           fieldValue: itemId,
-        },
+        }
       );
     });
 
     return this.searchBy(
       'byItemsAndType',
       {
-        searchParams: searchParams,
+        searchParams: searchParams
       },
     ) as Observable<RemoteData<PaginatedList<Relationship>>>;
 

src/app/item-page/edit-item-page/item-relationships/edit-relationship-list/edit-relationship-list.component.spec.ts

@@ -31,6 +31,7 @@ import { SearchConfigurationServiceStub } from '../../../../shared/testing/searc
 import { ConfigurationProperty } from '../../../../core/shared/configuration-property.model';
 import { Router } from '@angular/router';
 import { RouterMock } from '../../../../shared/mocks/router.mock';
+import { APP_CONFIG } from '../../../../../config/app-config.interface';
 
 let comp: EditRelationshipListComponent;
 let fixture: ComponentFixture<EditRelationshipListComponent>;
@@ -201,6 +202,12 @@ describe('EditRelationshipListComponent', () => {
       }))
     });
 
+    const environmentUseThumbs = {
+      browseBy: {
+        showThumbnails: true
+      }
+    };
+
     TestBed.configureTestingModule({
       imports: [SharedModule, TranslateModule.forRoot()],
       declarations: [EditRelationshipListComponent],
@@ -217,6 +224,7 @@ describe('EditRelationshipListComponent', () => {
         { provide: LinkHeadService, useValue: linkHeadService },
         { provide: ConfigurationDataService, useValue: configurationDataService },
         { provide: SearchConfigurationService, useValue: new SearchConfigurationServiceStub() },
+        { provide: APP_CONFIG, useValue: environmentUseThumbs }
       ], schemas: [
         NO_ERRORS_SCHEMA
       ]
@@ -259,9 +267,11 @@ describe('EditRelationshipListComponent', () => {
 
       const callArgs = relationshipService.getItemRelationshipsByLabel.calls.mostRecent().args;
       const findListOptions = callArgs[2];
-
+      const linksToFollow = callArgs[5];
       expect(findListOptions.elementsPerPage).toEqual(paginationOptions.pageSize);
       expect(findListOptions.currentPage).toEqual(paginationOptions.currentPage);
+      expect(linksToFollow.linksToFollow[0].name).toEqual('thumbnail');
+
     });
 
     describe('when the publication is on the left side of the relationship', () => {

src/app/item-page/edit-item-page/item-relationships/edit-relationship-list/edit-relationship-list.component.ts

@@ -1,4 +1,4 @@
-import { Component, EventEmitter, Input, OnDestroy, OnInit, Output } from '@angular/core';
+import { Component, EventEmitter, Inject, Input, OnDestroy, OnInit, Output } from '@angular/core';
 import { NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { ObjectUpdatesService } from '../../../../core/data/object-updates/object-updates.service';
@@ -29,7 +29,7 @@ import { DsDynamicLookupRelationModalComponent } from '../../../../shared/form/b
 import { RelationshipOptions } from '../../../../shared/form/builder/models/relationship-options.model';
 import { SelectableListService } from '../../../../shared/object-list/selectable-list/selectable-list.service';
 import { SearchResult } from '../../../../shared/search/models/search-result.model';
-import { followLink } from '../../../../shared/utils/follow-link-config.model';
+import { followLink, FollowLinkConfig } from '../../../../shared/utils/follow-link-config.model';
 import { PaginatedList } from '../../../../core/data/paginated-list.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { Collection } from '../../../../core/shared/collection.model';
@@ -39,6 +39,7 @@ import { RelationshipTypeDataService } from '../../../../core/data/relationship-
 import { FieldUpdate } from '../../../../core/data/object-updates/field-update.model';
 import { FieldUpdates } from '../../../../core/data/object-updates/field-updates.model';
 import { FieldChangeType } from '../../../../core/data/object-updates/field-change-type.model';
+import { APP_CONFIG, AppConfig } from '../../../../../config/app-config.interface';
 
 @Component({
   selector: 'ds-edit-relationship-list',
@@ -138,6 +139,10 @@ export class EditRelationshipListComponent implements OnInit, OnDestroy {
    */
   modalRef: NgbModalRef;
 
+  /**
+   * Determines whether to ask for the embedded item thumbnail.
+   */
+  embedThumbnail: boolean;
 
   constructor(
     protected objectUpdatesService: ObjectUpdatesService,
@@ -147,7 +152,9 @@ export class EditRelationshipListComponent implements OnInit, OnDestroy {
     protected modalService: NgbModal,
     protected paginationService: PaginationService,
     protected selectableListService: SelectableListService,
+    @Inject(APP_CONFIG) protected appConfig: AppConfig
   ) {
+    this.embedThumbnail = this.appConfig.browseBy.showThumbnails;
   }
 
   /**
@@ -484,6 +491,17 @@ export class EditRelationshipListComponent implements OnInit, OnDestroy {
       tap(() => this.loading$.next(true))
     );
 
+    // this adds thumbnail images when required by configuration
+    let linksToFollow: FollowLinkConfig<Relationship>[];
+    if (this.embedThumbnail) {
+      linksToFollow = [
+        followLink('leftItem',{}, followLink('thumbnail')),
+        followLink('rightItem',{}, followLink('thumbnail')),
+        followLink('relationshipType') ];
+    } else {
+      linksToFollow = [followLink('leftItem'), followLink('rightItem'), followLink('relationshipType')];
+    }
+
     this.subs.push(
       observableCombineLatest([
         currentPagination$,
@@ -496,12 +514,11 @@ export class EditRelationshipListComponent implements OnInit, OnDestroy {
             currentItemIsLeftItem ? this.relationshipType.leftwardType : this.relationshipType.rightwardType,
             {
               elementsPerPage: currentPagination.pageSize,
-              currentPage: currentPagination.currentPage,
+              currentPage: currentPagination.currentPage
             },
             false,
             true,
-            followLink('leftItem'),
+            ...linksToFollow
-            followLink('rightItem'),
           )),
       ).subscribe((rd: RemoteData<PaginatedList<Relationship>>) => {
         this.relationshipsRd$.next(rd);

src/app/item-page/simple/related-items/related-items-component.ts

@@ -1,4 +1,4 @@
-import { Component, ElementRef, Input } from '@angular/core';
+import { Component, ElementRef, Inject, Input } from '@angular/core';
 import { Item } from '../../../core/shared/item.model';
 import { Observable } from 'rxjs';
 import { RemoteData } from '../../../core/data/remote-data';
@@ -8,6 +8,7 @@ import { RelationshipDataService } from '../../../core/data/relationship-data.se
 import { AbstractIncrementalListComponent } from '../abstract-incremental-list/abstract-incremental-list.component';
 import { FindListOptions } from '../../../core/data/find-list-options.model';
 import { setPlaceHolderFontSize } from '../../../shared/utils/object-list-utils';
+import { APP_CONFIG, AppConfig } from '../../../../config/app-config.interface';
 
 @Component({
   selector: 'ds-related-items',
@@ -55,8 +56,17 @@ export class RelatedItemsComponent extends AbstractIncrementalListComponent<Obse
    */
   viewMode = ViewMode.ListElement;
 
-  constructor(public relationshipService: RelationshipDataService,  protected elementRef: ElementRef) {
+  /**
+   * Determines whether to request embedded thumbnail.
+   */
+  embedThumbnail: boolean;
+
+  constructor(public relationshipService: RelationshipDataService,
+              protected elementRef: ElementRef,
+              @Inject(APP_CONFIG) protected appConfig: AppConfig
+              ) {
     super();
+    this.embedThumbnail = this.appConfig.browseBy.showThumbnails;
   }
 
   ngOnInit(): void {
@@ -70,6 +80,7 @@ export class RelatedItemsComponent extends AbstractIncrementalListComponent<Obse
    * @param page  The page to fetch
    */
   getPage(page: number): Observable<RemoteData<PaginatedList<Item>>> {
-    return this.relationshipService.getRelatedItemsByLabel(this.parentItem, this.relationType, Object.assign(this.options, { elementsPerPage: this.incrementBy, currentPage: page, embedThumbnail: true }));
+    return this.relationshipService.getRelatedItemsByLabel(this.parentItem, this.relationType, Object.assign(this.options,
+      { elementsPerPage: this.incrementBy, currentPage: page, embedThumbnail: this.embedThumbnail }));
   }
 }

src/app/item-page/simple/related-items/related-items.component.spec.ts

@@ -10,6 +10,7 @@ import { TranslateModule } from '@ngx-translate/core';
 import { VarDirective } from '../../../shared/utils/var.directive';
 import { of as observableOf } from 'rxjs';
 import { createPaginatedList } from '../../../shared/testing/utils.test';
+import { APP_CONFIG } from '../../../../config/app-config.interface';
 
 const parentItem: Item = Object.assign(new Item(), {
   bundles: createSuccessfulRemoteDataObject$(createPaginatedList([])),
@@ -30,6 +31,18 @@ const mockItems = [mockItem1, mockItem2];
 const relationType = 'isItemOfItem';
 let relationshipService: RelationshipDataService;
 
+const environmentUseThumbs = {
+  browseBy: {
+    showThumbnails: true
+  }
+};
+
+const enviromentNoThumbs = {
+  browseBy: {
+    showThumbnails: false
+  }
+};
+
 describe('RelatedItemsComponent', () => {
   let comp: RelatedItemsComponent;
   let fixture: ComponentFixture<RelatedItemsComponent>;
@@ -45,7 +58,8 @@ describe('RelatedItemsComponent', () => {
       imports: [TranslateModule.forRoot()],
       declarations: [RelatedItemsComponent, VarDirective],
       providers: [
-        { provide: RelationshipDataService, useValue: relationshipService }
+        { provide: RelationshipDataService, useValue: relationshipService },
+        { provide: APP_CONFIG, useValue: environmentUseThumbs }
       ],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(RelatedItemsComponent, {
@@ -82,9 +96,11 @@ describe('RelatedItemsComponent', () => {
     it('should call relationship-service\'s getRelatedItemsByLabel with the correct arguments (second page)', () => {
       expect(relationshipService.getRelatedItemsByLabel).toHaveBeenCalledWith(parentItem, relationType, Object.assign(comp.options, {
         elementsPerPage: comp.incrementBy,
-        currentPage: 2
+        currentPage: 2,
+        embedThumbnail: true
       }));
     });
+
   });
 
   describe('when decrease is called', () => {
@@ -100,3 +116,42 @@ describe('RelatedItemsComponent', () => {
   });
 
 });
+describe('RelatedItemsComponent', () => {
+  let comp: RelatedItemsComponent;
+  let fixture: ComponentFixture<RelatedItemsComponent>;
+
+  beforeEach(waitForAsync(() => {
+    relationshipService = jasmine.createSpyObj('relationshipService',
+      {
+        getRelatedItemsByLabel: createSuccessfulRemoteDataObject$(createPaginatedList(mockItems)),
+      }
+    );
+
+    TestBed.configureTestingModule({
+      imports: [TranslateModule.forRoot()],
+      declarations: [RelatedItemsComponent, VarDirective],
+      providers: [
+        {provide: RelationshipDataService, useValue: relationshipService},
+        {provide: APP_CONFIG, useValue: enviromentNoThumbs}
+      ],
+      schemas: [NO_ERRORS_SCHEMA]
+    }).overrideComponent(RelatedItemsComponent, {
+      set: {changeDetection: ChangeDetectionStrategy.Default}
+    }).compileComponents();
+  }));
+
+  beforeEach(waitForAsync(() => {
+    fixture = TestBed.createComponent(RelatedItemsComponent);
+    comp = fixture.componentInstance;
+    comp.parentItem = parentItem;
+    comp.relationType = relationType;
+    fixture.detectChanges();
+  }));
+  it('should call relationship-service\'s getRelatedItemsByLabel with the correct arguments (second page)', () => {
+    expect(relationshipService.getRelatedItemsByLabel).toHaveBeenCalledWith(parentItem, relationType, Object.assign(comp.options, {
+      elementsPerPage: comp.incrementBy,
+      currentPage: 2,
+      embedThumbnail: false
+    }));
+  });
+});