Merge pull request #606 from 4Science/#603_mydspace_fixes

#603 mydspace fixes

src/app/+my-dspace-page/my-dspace-page.component.html

@@ -19,7 +19,7 @@
           <ds-search-labels [inPlaceSearch]="inPlaceSearch"></ds-search-labels>
           <div class="row">
               <div id="search-body"
-                   class="row-offcanvas row-offcanvas-left"
+                   class="row-offcanvas row-offcanvas-left w-100"
                    [@pushInOut]="(isSidebarCollapsed() | async) ? 'collapsed' : 'expanded'">
                   <ds-search-sidebar *ngIf="(isXsOrSm$ | async)" class="col-12"
                                      id="search-sidebar-sm"

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

@@ -3,7 +3,7 @@ import { Injectable } from '@angular/core';
 import { Store } from '@ngrx/store';
 import { Observable } from 'rxjs/internal/Observable';
 import { map, switchMap } from 'rxjs/operators';
-import { hasValue } from '../../shared/empty.util';
+import { hasValue, isNotEmpty } from '../../shared/empty.util';
 import { NotificationsService } from '../../shared/notifications/notifications.service';
 import { FollowLinkConfig } from '../../shared/utils/follow-link-config.model';
 import { dataService } from '../cache/builders/build-decorators';
@@ -72,7 +72,7 @@ export class BitstreamDataService extends DataService<Bitstream> {
   public getThumbnailFor(item: Item): Observable<RemoteData<Bitstream>> {
     return this.bundleService.findByItemAndName(item, 'THUMBNAIL').pipe(
       switchMap((bundleRD: RemoteData<Bundle>) => {
-        if (hasValue(bundleRD.payload)) {
+        if (isNotEmpty(bundleRD.payload)) {
           return this.findAllByBundle(bundleRD.payload, { elementsPerPage: 1 }).pipe(
             map((bitstreamRD: RemoteData<PaginatedList<Bitstream>>) => {
               if (hasValue(bitstreamRD.payload) && hasValue(bitstreamRD.payload.page)) {
@@ -108,7 +108,7 @@ export class BitstreamDataService extends DataService<Bitstream> {
   public getMatchingThumbnail(item: Item, bitstreamInOriginal: Bitstream): Observable<RemoteData<Bitstream>> {
     return this.bundleService.findByItemAndName(item, 'THUMBNAIL').pipe(
       switchMap((bundleRD: RemoteData<Bundle>) => {
-        if (hasValue(bundleRD.payload)) {
+        if (isNotEmpty(bundleRD.payload)) {
           return this.findAllByBundle(bundleRD.payload, { elementsPerPage: Number.MAX_SAFE_INTEGER }).pipe(
             map((bitstreamRD: RemoteData<PaginatedList<Bitstream>>) => {
               if (hasValue(bitstreamRD.payload) && hasValue(bitstreamRD.payload.page)) {

src/app/core/eperson/group-data.service.ts

@@ -18,6 +18,8 @@ import { RemoteData } from '../data/remote-data';
 import { PaginatedList } from '../data/paginated-list';
 import { NotificationsService } from '../../shared/notifications/notifications.service';
 import { DSOChangeAnalyzer } from '../data/dso-change-analyzer.service';
+import { dataService } from '../cache/builders/build-decorators';
+import { GROUP } from './models/group.resource-type';
 
 /**
  * Provides methods to retrieve eperson group resources.
@@ -25,6 +27,7 @@ import { DSOChangeAnalyzer } from '../data/dso-change-analyzer.service';
 @Injectable({
   providedIn: 'root'
 })
+@dataService(GROUP)
 export class GroupDataService extends DataService<Group> {
   protected linkPath = 'groups';
   protected browseEndpoint = '';

src/app/core/shared/search/search.service.ts

@@ -2,7 +2,7 @@ import { combineLatest as observableCombineLatest, Observable, of as observableO
 import { Injectable, OnDestroy } from '@angular/core';
 import { NavigationExtras, Router } from '@angular/router';
 import { first, map, switchMap, tap } from 'rxjs/operators';
-import { followLink } from '../../../shared/utils/follow-link-config.model';
+import { followLink, FollowLinkConfig } from '../../../shared/utils/follow-link-config.model';
 import { LinkService } from '../../cache/builders/link.service';
 import { FacetConfigSuccessResponse, FacetValueSuccessResponse, SearchSuccessResponse } from '../../cache/response.models';
 import { PaginatedList } from '../../data/paginated-list';
@@ -107,10 +107,11 @@ export class SearchService implements OnDestroy {
    * Method to retrieve a paginated list of search results from the server
    * @param {PaginatedSearchOptions} searchOptions The configuration necessary to perform this search
    * @param responseMsToLive The amount of milliseconds for the response to live in cache
+   * @param linksToFollow List of {@link FollowLinkConfig} that indicate which {@link HALLink}s should be automatically resolved
    * @returns {Observable<RemoteData<PaginatedList<SearchResult<DSpaceObject>>>>} Emits a paginated list with all search results found
    */
-  search(searchOptions?: PaginatedSearchOptions, responseMsToLive?: number): Observable<RemoteData<PaginatedList<SearchResult<DSpaceObject>>>> {
+  search<T extends DSpaceObject>(searchOptions?: PaginatedSearchOptions, responseMsToLive?: number, ...linksToFollow: Array<FollowLinkConfig<T>>): Observable<RemoteData<PaginatedList<SearchResult<DSpaceObject>>>> {
-    return this.getPaginatedResults(this.searchEntries(searchOptions));
+    return this.getPaginatedResults<T>(this.searchEntries(searchOptions), ...linksToFollow);
   }
 
   /**
@@ -151,9 +152,10 @@ export class SearchService implements OnDestroy {
   /**
    * Method to convert the parsed responses into a paginated list of search results
    * @param searchEntries: The request entries from the search method
+   * @param linksToFollow List of {@link FollowLinkConfig} that indicate which {@link HALLink}s should be automatically resolved
    * @returns {Observable<RemoteData<PaginatedList<SearchResult<DSpaceObject>>>>} Emits a paginated list with all search results found
    */
-  getPaginatedResults(searchEntries: Observable<{ searchOptions: PaginatedSearchOptions, requestEntry: RequestEntry }>): Observable<RemoteData<PaginatedList<SearchResult<DSpaceObject>>>> {
+  getPaginatedResults<T extends DSpaceObject>(searchEntries: Observable<{ searchOptions: PaginatedSearchOptions, requestEntry: RequestEntry }>, ...linksToFollow: Array<FollowLinkConfig<T>>): Observable<RemoteData<PaginatedList<SearchResult<DSpaceObject>>>> {
     const requestEntryObs: Observable<RequestEntry> = searchEntries.pipe(
       map((entry) => entry.requestEntry),
     );
@@ -174,7 +176,7 @@ export class SearchService implements OnDestroy {
       }),
       // Send a request for each item to ensure fresh cache
       tap((reqs: RestRequest[]) => reqs.forEach((req: RestRequest) => this.requestService.configure(req))),
-      map((reqs: RestRequest[]) => reqs.map((req: RestRequest) => this.rdb.buildSingle(req.href))),
+      map((reqs: RestRequest[]) => reqs.map((req: RestRequest) => this.rdb.buildSingle(req.href, ...linksToFollow))),
       switchMap((input: Array<Observable<RemoteData<DSpaceObject>>>) => this.rdb.aggregate(input)),
     );
 

src/app/core/tasks/models/claimed-task-object.model.ts

@@ -1,6 +1,5 @@
 import { inheritSerialization } from 'cerialize';
-import { typedObject } from '../../cache/builders/build-decorators';
+import { inheritLinkAnnotations, typedObject } from '../../cache/builders/build-decorators';
-import { DSpaceObject } from '../../shared/dspace-object.model';
 import { CLAIMED_TASK } from './claimed-task-object.resource-type';
 import { TaskObject } from './task-object.model';
 
@@ -8,7 +7,8 @@ import { TaskObject } from './task-object.model';
  * A model class for a ClaimedTask.
  */
 @typedObject
-@inheritSerialization(DSpaceObject)
+@inheritSerialization(TaskObject)
+@inheritLinkAnnotations(TaskObject)
 export class ClaimedTask extends TaskObject {
   static type = CLAIMED_TASK;
 }

src/app/core/tasks/models/pool-task-object.model.ts

@@ -1,5 +1,5 @@
 import { inheritSerialization } from 'cerialize';
-import { typedObject } from '../../cache/builders/build-decorators';
+import { inheritLinkAnnotations, typedObject } from '../../cache/builders/build-decorators';
 import { POOL_TASK } from './pool-task-object.resource-type';
 import { TaskObject } from './task-object.model';
 
@@ -8,6 +8,7 @@ import { TaskObject } from './task-object.model';
  */
 @typedObject
 @inheritSerialization(TaskObject)
+@inheritLinkAnnotations(TaskObject)
 export class PoolTask extends TaskObject {
   static type = POOL_TASK;
 }

src/app/core/tasks/models/task-object.model.ts

@@ -12,6 +12,7 @@ import { DSpaceObject } from '../../shared/dspace-object.model';
 import { HALLink } from '../../shared/hal-link.model';
 import { WorkflowItem } from '../../submission/models/workflowitem.model';
 import { TASK_OBJECT } from './task-object.resource-type';
+import { WORKFLOWITEM } from '../../eperson/models/workflowitem.resource-type';
 
 /**
  * An abstract model class for a TaskObject.
@@ -45,7 +46,7 @@ export class TaskObject extends DSpaceObject implements CacheableObject {
   @deserialize
   _links: {
     self: HALLink;
-    eperson: HALLink;
+    owner: HALLink;
     group: HALLink;
     workflowitem: HALLink;
   };
@@ -54,7 +55,7 @@ export class TaskObject extends DSpaceObject implements CacheableObject {
    * The EPerson for this task
    * Will be undefined unless the eperson {@link HALLink} has been resolved.
    */
-  @link(EPERSON)
+  @link(EPERSON, false, 'owner')
   eperson?: Observable<RemoteData<EPerson>>;
 
   /**
@@ -68,7 +69,7 @@ export class TaskObject extends DSpaceObject implements CacheableObject {
    * The WorkflowItem for this task
    * Will be undefined unless the workflowitem {@link HALLink} has been resolved.
    */
-  @link(WorkflowItem.type)
+  @link(WORKFLOWITEM)
   workflowitem?: Observable<RemoteData<WorkflowItem>> | WorkflowItem;
 
 }

src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.html

@@ -2,7 +2,7 @@
   <a [class.disabled]="!(object.workflowitem | async)?.hasSucceeded"
      class="btn btn-primary mt-1 mb-3"
      ngbTooltip="{{'submission.workflow.tasks.claimed.edit_help' | translate}}"
-     [routerLink]="['/workflowitems/' + (object.workflowitem | async)?.payload.id + '/edit']"
+     [routerLink]="['/workflowitems/' + (object?.workflowitem | async)?.payload?.id + '/edit']"
      role="button">
     <i class="fa fa-edit"></i> {{'submission.workflow.tasks.claimed.edit' | translate}}
   </a>

src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.html

@@ -1,8 +1,10 @@
-<ds-item-detail-preview *ngIf="workflowitem"
+<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
+  <ds-item-detail-preview *ngIf="workflowitem"
                           [item]="(workflowitem.item | async)?.payload"
                           [object]="object"
                           [showSubmitter]="showSubmitter"
                           [status]="status">
-</ds-item-detail-preview>
+  </ds-item-detail-preview>
 
-<ds-claimed-task-actions *ngIf="workflowitem" [object]="dso"></ds-claimed-task-actions>
+  <ds-claimed-task-actions *ngIf="workflowitem" [object]="dso"></ds-claimed-task-actions>
+</ng-container>

src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.spec.ts

@@ -11,6 +11,9 @@ import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspa
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
+import { VarDirective } from '../../../utils/var.directive';
+import { getMockLinkService } from '../../../mocks/mock-link-service';
+import { LinkService } from '../../../../core/cache/builders/link.service';
 
 let component: ClaimedTaskSearchResultDetailElementComponent;
 let fixture: ComponentFixture<ClaimedTaskSearchResultDetailElementComponent>;
@@ -53,12 +56,16 @@ const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem) });
+const linkService = getMockLinkService();
 
 describe('ClaimedTaskSearchResultDetailElementComponent', () => {
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [NoopAnimationsModule],
-      declarations: [ClaimedTaskSearchResultDetailElementComponent],
+      declarations: [ClaimedTaskSearchResultDetailElementComponent, VarDirective],
+      providers: [
+        { provide: LinkService, useValue: linkService }
+      ],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(ClaimedTaskSearchResultDetailElementComponent, {
       set: { changeDetection: ChangeDetectionStrategy.Default }
@@ -75,8 +82,12 @@ describe('ClaimedTaskSearchResultDetailElementComponent', () => {
     fixture.detectChanges();
   });
 
-  it('should init item properly', () => {
+  it('should init workflowitem properly', (done) => {
-    expect(component.workflowitem).toEqual(workflowitem);
+    component.workflowitemRD$.subscribe((workflowitemRD) => {
+      expect(linkService.resolveLink).toHaveBeenCalled();
+      expect(workflowitemRD.payload).toEqual(workflowitem);
+      done();
+    });
   });
 
   it('should have properly status', () => {

src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts

@@ -1,17 +1,17 @@
 import { Component } from '@angular/core';
 
 import { Observable } from 'rxjs';
-import { find } from 'rxjs/operators';
 
 import { RemoteData } from '../../../../core/data/remote-data';
 import { ViewMode } from '../../../../core/shared/view-mode.model';
-import { isNotUndefined } from '../../../empty.util';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
 import { SearchResultDetailElementComponent } from '../search-result-detail-element.component';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
+import { followLink } from '../../../utils/follow-link-config.model';
+import { LinkService } from '../../../../core/cache/builders/link.service';
 
 /**
  * This component renders claimed task object for the search result in the detail view.
@@ -38,25 +38,24 @@ export class ClaimedTaskSearchResultDetailElementComponent extends SearchResultD
   /**
    * The workflowitem object that belonging to the result object
    */
-  public workflowitem: WorkflowItem;
+  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+
+  constructor(protected linkService: LinkService) {
+    super();
+  }
 
   /**
    * Initialize all instance variables
    */
   ngOnInit() {
     super.ngOnInit();
-    this.initWorkflowItem(this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>);
+    this.linkService.resolveLink(this.dso, followLink(
-  }
+      'workflowitem',
-
+      null,
-  /**
+      followLink('item', null, followLink('bundles')),
-   * Retrieve workflow item from result object
+      followLink('submitter')
-   */
+    ));
-  initWorkflowItem(wfi$: Observable<RemoteData<WorkflowItem>>) {
+    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
-    wfi$.pipe(
-      find((rd: RemoteData<WorkflowItem>) => (rd.hasSucceeded && isNotUndefined(rd.payload)))
-    ).subscribe((rd: RemoteData<WorkflowItem>) => {
-      this.workflowitem = rd.payload;
-    });
   }
 
 }

src/app/shared/object-detail/my-dspace-result-detail-element/item-detail-preview/item-detail-preview.component.html

@@ -10,9 +10,9 @@
     <div class="row mb-1">
       <div class="col-xs-12 col-md-4">
         <ds-metadata-field-wrapper>
-          <ds-thumbnail [thumbnail]="thumbnail$ | async"></ds-thumbnail>
+          <ds-thumbnail [thumbnail]="getThumbnail() | async"></ds-thumbnail>
         </ds-metadata-field-wrapper>
-        <ng-container *ngVar="(bitstreams$ | async) as bitstreams">
+        <ng-container *ngVar="(getFiles() | async) as bitstreams">
           <ds-metadata-field-wrapper [label]="('item.page.files' | translate)">
             <div *ngIf="bitstreams?.length > 0" class="file-section">
               <button class="btn btn-link" *ngFor="let file of bitstreams; let last=last;" (click)="downloadBitstreamFile(file?.uuid)">

src/app/shared/object-detail/my-dspace-result-detail-element/item-detail-preview/item-detail-preview.component.spec.ts

@@ -5,8 +5,8 @@ import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { Store } from '@ngrx/store';
 import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
 
-import { of as observableOf } from 'rxjs';
+import { Observable, of as observableOf } from 'rxjs';
-import { Observable } from 'rxjs/internal/Observable';
+
 import { RemoteDataBuildService } from '../../../../core/cache/builders/remote-data-build.service';
 import { ObjectCacheService } from '../../../../core/cache/object-cache.service';
 import { BitstreamDataService } from '../../../../core/data/bitstream-data.service';
@@ -28,7 +28,6 @@ import { HALEndpointServiceStub } from '../../../testing/hal-endpoint-service-st
 import { createSuccessfulRemoteDataObject$ } from '../../../testing/utils';
 import { FileSizePipe } from '../../../utils/file-size-pipe';
 import { FollowLinkConfig } from '../../../utils/follow-link-config.model';
-
 import { TruncatePipe } from '../../../utils/truncate.pipe';
 import { VarDirective } from '../../../utils/var.directive';
 import { ItemDetailPreviewFieldComponent } from './item-detail-preview-field/item-detail-preview-field.component';
@@ -127,8 +126,17 @@ describe('ItemDetailPreviewComponent', () => {
 
   }));
 
-  it('should init thumbnail and bitstreams on init', () => {
+  it('should get item thumbnail', (done) => {
-    expect(component.thumbnail$).toBeDefined();
+    component.getThumbnail().subscribe((thumbnail) => {
-    expect(component.bitstreams$).toBeDefined();
+      expect(thumbnail).toBeDefined();
+      done();
+    });
+  });
+
+  it('should get item bitstreams', (done) => {
+    component.getFiles().subscribe((bitstreams) => {
+      expect(bitstreams).toBeDefined();
+      done();
+    })
   });
 });

src/app/shared/object-detail/my-dspace-result-detail-element/item-detail-preview/item-detail-preview.component.ts

@@ -1,17 +1,13 @@
 import { Component, Input } from '@angular/core';
 
 import { Observable } from 'rxjs';
-import { first, map } from 'rxjs/operators';
+import { first } from 'rxjs/operators';
 import { BitstreamDataService } from '../../../../core/data/bitstream-data.service';
-import { RemoteData } from '../../../../core/data/remote-data';
 
 import { Item } from '../../../../core/shared/item.model';
 import {
-  getAllSucceededRemoteListPayload,
   getFirstSucceededRemoteDataPayload,
-  getFirstSucceededRemoteListPayload,
+  getFirstSucceededRemoteListPayload
-  getRemoteDataPayload,
-  getSucceededRemoteData
 } from '../../../../core/shared/operators';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { fadeInOut } from '../../../animations/fade';
@@ -71,20 +67,13 @@ export class ItemDetailPreviewComponent {
    *
    * @param {FileService} fileService
    * @param {HALEndpointService} halService
+   * @param {BitstreamDataService} bitstreamDataService
    */
   constructor(private fileService: FileService,
               private halService: HALEndpointService,
               private bitstreamDataService: BitstreamDataService) {
   }
 
-  /**
-   * Initialize all instance variables
-   */
-  ngOnInit() {
-    this.thumbnail$ = this.getThumbnail();
-    this.bitstreams$ = this.getFiles();
-  }
-
   /**
    * Perform bitstream download
    */
@@ -98,14 +87,14 @@ export class ItemDetailPreviewComponent {
   }
 
   // TODO refactor this method to return RemoteData, and the template to deal with loading and errors
-  getThumbnail(): Observable<Bitstream> {
+  public getThumbnail(): Observable<Bitstream> {
     return this.bitstreamDataService.getThumbnailFor(this.item).pipe(
       getFirstSucceededRemoteDataPayload()
     );
   }
 
   // TODO refactor this method to return RemoteData, and the template to deal with loading and errors
-  getFiles(): Observable<Bitstream[]> {
+  public getFiles(): Observable<Bitstream[]> {
     return this.bitstreamDataService
       .findAllByItemAndBundleName(this.item, 'ORIGINAL', { elementsPerPage: Number.MAX_SAFE_INTEGER })
       .pipe(

src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.html

@@ -1,7 +1,9 @@
-<ds-item-detail-preview *ngIf="workflowitem"
+<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-                        [item]="(workflowitem.item | async)?.payload"
+  <ds-item-detail-preview *ngIf="workflowitem"
+                          [item]="(workflowitem?.item | async)?.payload"
                           [object]="object"
                           [showSubmitter]="showSubmitter"
                           [status]="status"></ds-item-detail-preview>
 
-<ds-pool-task-actions *ngIf="workflowitem" [object]="dso"></ds-pool-task-actions>
+  <ds-pool-task-actions *ngIf="workflowitem" [object]="dso"></ds-pool-task-actions>
+</ng-container>

src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.spec.ts

@@ -11,6 +11,9 @@ import { WorkflowItem } from '../../../../core/submission/models/workflowitem.mo
 import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 import { PoolSearchResultDetailElementComponent } from './pool-search-result-detail-element.component';
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
+import { VarDirective } from '../../../utils/var.directive';
+import { LinkService } from '../../../../core/cache/builders/link.service';
+import { getMockLinkService } from '../../../mocks/mock-link-service';
 
 let component: PoolSearchResultDetailElementComponent;
 let fixture: ComponentFixture<PoolSearchResultDetailElementComponent>;
@@ -53,15 +56,17 @@ const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
+const linkService = getMockLinkService();
 
 describe('PoolSearchResultDetailElementComponent', () => {
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [NoopAnimationsModule],
-      declarations: [PoolSearchResultDetailElementComponent],
+      declarations: [PoolSearchResultDetailElementComponent, VarDirective],
       providers: [
         { provide: 'objectElementProvider', useValue: (mockResultObject) },
-        { provide: 'indexElementProvider', useValue: (compIndex) }
+        { provide: 'indexElementProvider', useValue: (compIndex) },
+        { provide: LinkService, useValue: linkService }
       ],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(PoolSearchResultDetailElementComponent, {
@@ -79,8 +84,12 @@ describe('PoolSearchResultDetailElementComponent', () => {
     fixture.detectChanges();
   });
 
-  it('should init item properly', () => {
+  it('should init workflowitem properly', (done) => {
-    expect(component.workflowitem).toEqual(workflowitem);
+    component.workflowitemRD$.subscribe((workflowitemRD) => {
+      expect(linkService.resolveLink).toHaveBeenCalled();
+      expect(workflowitemRD.payload).toEqual(workflowitem);
+      done();
+    });
   });
 
   it('should have properly status', () => {

src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts

@@ -1,9 +1,7 @@
 import { Component } from '@angular/core';
 
 import { Observable } from 'rxjs';
-import { find } from 'rxjs/operators';
 import { RemoteData } from '../../../../core/data/remote-data';
-import { isNotUndefined } from '../../../empty.util';
 import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
 import { SearchResultDetailElementComponent } from '../search-result-detail-element.component';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
@@ -11,6 +9,8 @@ import { WorkflowItem } from '../../../../core/submission/models/workflowitem.mo
 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
+import { followLink } from '../../../utils/follow-link-config.model';
+import { LinkService } from '../../../../core/cache/builders/link.service';
 
 /**
  * This component renders pool task object for the search result in the detail view.
@@ -37,25 +37,24 @@ export class PoolSearchResultDetailElementComponent extends SearchResultDetailEl
   /**
    * The workflowitem object that belonging to the result object
    */
-  public workflowitem: WorkflowItem;
+  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+
+  constructor(protected linkService: LinkService) {
+    super();
+  }
 
   /**
    * Initialize all instance variables
    */
   ngOnInit() {
     super.ngOnInit();
-    this.initWorkflowItem(this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>);
+    this.linkService.resolveLink(this.dso, followLink(
-  }
+      'workflowitem',
-
+      null,
-  /**
+      followLink('item', null, followLink('bundles')),
-   * Retrieve workflowitem from result object
+      followLink('submitter')
-   */
+    ));
-  initWorkflowItem(wfi$: Observable<RemoteData<WorkflowItem>>) {
+    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
-    wfi$.pipe(
-      find((rd: RemoteData<WorkflowItem>) => (rd.hasSucceeded && isNotUndefined(rd.payload)))
-    ).subscribe((rd: RemoteData<WorkflowItem>) => {
-      this.workflowitem = rd.payload;
-    });
   }
 
 }

src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.html

@@ -1,7 +1,10 @@
-<ds-item-list-preview *ngIf="workflowitem"
+<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-                      [item]="(workflowitem.item | async)?.payload"
+  <ds-item-list-preview *ngIf="workflowitem"
+                        [item]="(workflowitem?.item | async)?.payload"
                         [object]="object"
                         [showSubmitter]="showSubmitter"
                         [status]="status"></ds-item-list-preview>
 
-<ds-claimed-task-actions *ngIf="workflowitem" [object]="dso"></ds-claimed-task-actions>
+  <ds-claimed-task-actions *ngIf="workflowitem" [object]="dso"></ds-claimed-task-actions>
+</ng-container>
+

src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.spec.ts

@@ -12,6 +12,9 @@ import { WorkflowItem } from '../../../../core/submission/models/workflowitem.mo
 import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
 import { TruncatableService } from '../../../truncatable/truncatable.service';
+import { VarDirective } from '../../../utils/var.directive';
+import { LinkService } from '../../../../core/cache/builders/link.service';
+import { getMockLinkService } from '../../../mocks/mock-link-service';
 
 let component: ClaimedSearchResultListElementComponent;
 let fixture: ComponentFixture<ClaimedSearchResultListElementComponent>;
@@ -54,14 +57,16 @@ const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem) });
+const linkService = getMockLinkService();
 
 describe('ClaimedSearchResultListElementComponent', () => {
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [NoopAnimationsModule],
-      declarations: [ClaimedSearchResultListElementComponent],
+      declarations: [ClaimedSearchResultListElementComponent, VarDirective],
       providers: [
         { provide: TruncatableService, useValue: {} },
+        { provide: LinkService, useValue: linkService }
       ],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(ClaimedSearchResultListElementComponent, {
@@ -79,8 +84,12 @@ describe('ClaimedSearchResultListElementComponent', () => {
     fixture.detectChanges();
   });
 
-  it('should init item properly', () => {
+  it('should init workflowitem properly', (done) => {
-    expect(component.workflowitem).toEqual(workflowitem);
+    component.workflowitemRD$.subscribe((workflowitemRD) => {
+      expect(linkService.resolveLink).toHaveBeenCalled();
+      expect(workflowitemRD.payload).toEqual(workflowitem);
+      done();
+    });
   });
 
   it('should have properly status', () => {

src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts

@@ -2,17 +2,18 @@ import { Component } from '@angular/core';
 import { Location, LocationStrategy, PathLocationStrategy } from '@angular/common';
 
 import { Observable } from 'rxjs';
-import { find } from 'rxjs/operators';
 
 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { RemoteData } from '../../../../core/data/remote-data';
-import { isNotUndefined } from '../../../empty.util';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
 import { SearchResultListElementComponent } from '../../search-result-list-element/search-result-list-element.component';
+import { followLink } from '../../../utils/follow-link-config.model';
+import { LinkService } from '../../../../core/cache/builders/link.service';
+import { TruncatableService } from '../../../truncatable/truncatable.service';
 
 /**
  * This component renders claimed task object for the search result in the list view.
@@ -40,24 +41,26 @@ export class ClaimedSearchResultListElementComponent extends SearchResultListEle
   /**
    * The workflowitem object that belonging to the result object
    */
-  public workflowitem: WorkflowItem;
+  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+
+  constructor(
+    protected linkService: LinkService,
+    protected truncatableService: TruncatableService
+  ) {
+    super(truncatableService);
+  }
 
   /**
    * Initialize all instance variables
    */
   ngOnInit() {
     super.ngOnInit();
-    this.initWorkflowItem(this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>);
+    this.linkService.resolveLink(this.dso, followLink(
-  }
+      'workflowitem',
-
+      null,
-  /**
+      followLink('item'),
-   * Retrieve workflowitem from result object
+      followLink('submitter')
-   */
+    ));
-  initWorkflowItem(wfi$: Observable<RemoteData<WorkflowItem>>) {
+    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
-    wfi$.pipe(
-      find((rd: RemoteData<WorkflowItem>) => (rd.hasSucceeded && isNotUndefined(rd.payload)))
-    ).subscribe((rd: RemoteData<WorkflowItem>) => {
-      this.workflowitem = rd.payload;
-    });
   }
 }

src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.html

@@ -1,7 +1,9 @@
-<ds-item-list-preview *ngIf="workflowitem"
+<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-                      [item]="(workflowitem.item | async)?.payload"
+  <ds-item-list-preview *ngIf="workflowitem"
+                        [item]="(workflowitem?.item | async)?.payload"
                         [object]="object"
                         [showSubmitter]="showSubmitter"
                         [status]="status"></ds-item-list-preview>
 
-<ds-pool-task-actions [object]="dso"></ds-pool-task-actions>
+  <ds-pool-task-actions *ngIf="workflowitem" [object]="dso"></ds-pool-task-actions>
+</ng-container>

src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.spec.ts

@@ -12,6 +12,9 @@ import { WorkflowItem } from '../../../../core/submission/models/workflowitem.mo
 import { createSuccessfulRemoteDataObject } from '../../../testing/utils';
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
 import { TruncatableService } from '../../../truncatable/truncatable.service';
+import { VarDirective } from '../../../utils/var.directive';
+import { LinkService } from '../../../../core/cache/builders/link.service';
+import { getMockLinkService } from '../../../mocks/mock-link-service';
 
 let component: PoolSearchResultListElementComponent;
 let fixture: ComponentFixture<PoolSearchResultListElementComponent>;
@@ -54,14 +57,16 @@ const rdItem = createSuccessfulRemoteDataObject(item);
 const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdItem) });
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
+const linkService = getMockLinkService();
 
 describe('PoolSearchResultListElementComponent', () => {
   beforeEach(async(() => {
     TestBed.configureTestingModule({
       imports: [NoopAnimationsModule],
-      declarations: [PoolSearchResultListElementComponent],
+      declarations: [PoolSearchResultListElementComponent, VarDirective],
       providers: [
         { provide: TruncatableService, useValue: {} },
+        { provide: LinkService, useValue: linkService }
       ],
       schemas: [NO_ERRORS_SCHEMA]
     }).overrideComponent(PoolSearchResultListElementComponent, {
@@ -79,8 +84,12 @@ describe('PoolSearchResultListElementComponent', () => {
     fixture.detectChanges();
   });
 
-  it('should init item properly', () => {
+  it('should init workflowitem properly', (done) => {
-    expect(component.workflowitem).toEqual(workflowitem);
+    component.workflowitemRD$.subscribe((workflowitemRD) => {
+      expect(linkService.resolveLink).toHaveBeenCalled();
+      expect(workflowitemRD.payload).toEqual(workflowitem);
+      done();
+    });
   });
 
   it('should have properly status', () => {

src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts

@@ -1,11 +1,9 @@
 import { Component, OnInit } from '@angular/core';
 
 import { Observable } from 'rxjs';
-import { find } from 'rxjs/operators';
 
 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { RemoteData } from '../../../../core/data/remote-data';
-import { isNotUndefined } from '../../../empty.util';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
@@ -13,6 +11,8 @@ import { listableObjectComponent } from '../../../object-collection/shared/lista
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
 import { SearchResultListElementComponent } from '../../search-result-list-element/search-result-list-element.component';
 import { TruncatableService } from '../../../truncatable/truncatable.service';
+import { followLink } from '../../../utils/follow-link-config.model';
+import { LinkService } from '../../../../core/cache/builders/link.service';
 
 /**
  * This component renders pool task object for the search result in the list view.
@@ -39,14 +39,17 @@ export class PoolSearchResultListElementComponent extends SearchResultListElemen
   /**
    * The workflowitem object that belonging to the result object
    */
-  public workflowitem: WorkflowItem;
+  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
 
   /**
    * The index of this list element
    */
   public index: number;
 
-  constructor(protected truncatableService: TruncatableService) {
+  constructor(
+    protected linkService: LinkService,
+    protected truncatableService: TruncatableService
+  ) {
     super(truncatableService);
   }
 
@@ -55,17 +58,12 @@ export class PoolSearchResultListElementComponent extends SearchResultListElemen
    */
   ngOnInit() {
     super.ngOnInit();
-    this.initWorkflowItem(this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>);
+    this.linkService.resolveLink(this.dso, followLink(
-  }
+      'workflowitem',
-
+      null,
-  /**
+      followLink('item'),
-   * Retrieve workflowitem from result object
+      followLink('submitter')
-   */
+    ));
-  initWorkflowItem(wfi$: Observable<RemoteData<WorkflowItem>>) {
+    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
-    wfi$.pipe(
-      find((rd: RemoteData<WorkflowItem>) => (rd.hasSucceeded && isNotUndefined(rd.payload)))
-    ).subscribe((rd: RemoteData<WorkflowItem>) => {
-      this.workflowitem = rd.payload;
-    });
   }
 }

src/app/submission/sections/form/section-form.component.spec.ts

@@ -43,9 +43,6 @@ import { SubmissionSectionError } from '../../objects/submission-objects.reducer
 import { DynamicFormControlEvent, DynamicFormControlEventType } from '@ng-dynamic-forms/core';
 import { JsonPatchOperationPathCombiner } from '../../../core/json-patch/builder/json-patch-operation-path-combiner';
 import { FormRowModel } from '../../../core/config/models/config-submission-form.model';
-import { WorkspaceitemDataService } from '../../../core/submission/workspaceitem-data.service';
-import { RemoteData } from '../../../core/data/remote-data';
-import { WorkspaceItem } from '../../../core/submission/models/workspaceitem.model';
 
 function getMockSubmissionFormsConfigService(): SubmissionFormsConfigService {
   return jasmine.createSpyObj('FormOperationsService', {
@@ -183,7 +180,6 @@ describe('SubmissionSectionformComponent test suite', () => {
         { provide: 'collectionIdProvider', useValue: collectionId },
         { provide: 'sectionDataProvider', useValue: sectionObject },
         { provide: 'submissionIdProvider', useValue: submissionId },
-        { provide: WorkspaceitemDataService, useValue: {findById: () => observableOf(new RemoteData(false, false, true, null, new WorkspaceItem()))}},
         ChangeDetectorRef,
         SubmissionSectionformComponent
       ],

src/app/submission/sections/form/section-form.component.ts

@@ -15,10 +15,7 @@ import { hasValue, isNotEmpty, isUndefined } from '../../../shared/empty.util';
 import { ConfigData } from '../../../core/config/config-data';
 import { JsonPatchOperationPathCombiner } from '../../../core/json-patch/builder/json-patch-operation-path-combiner';
 import { SubmissionFormsModel } from '../../../core/config/models/config-submission-forms.model';
-import {
+import { SubmissionSectionError, SubmissionSectionObject } from '../../objects/submission-objects.reducer';
-  SubmissionSectionError,
-  SubmissionSectionObject
-} from '../../objects/submission-objects.reducer';
 import { FormFieldPreviousValueObject } from '../../../shared/form/builder/models/form-field-previous-value-object';
 import { GLOBAL_CONFIG } from '../../../../config';
 import { GlobalConfig } from '../../../../config/global-config.interface';
@@ -31,11 +28,7 @@ import { NotificationsService } from '../../../shared/notifications/notification
 import { SectionsService } from '../sections.service';
 import { difference } from '../../../shared/object.util';
 import { WorkspaceitemSectionFormObject } from '../../../core/submission/models/workspaceitem-section-form.model';
-import { WorkspaceItem } from '../../../core/submission/models/workspaceitem.model';
 import { WorkspaceitemDataService } from '../../../core/submission/workspaceitem-data.service';
-import { combineLatest as combineLatestObservable } from 'rxjs';
-import { getSucceededRemoteData } from '../../../core/shared/operators';
-import { RemoteData } from '../../../core/data/remote-data';
 
 /**
  * This component represents a section that contains a Form.
@@ -108,7 +101,6 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
    */
   protected subs: Subscription[] = [];
 
-  protected workspaceItem: WorkspaceItem;
   /**
    * The FormComponent reference
    */
@@ -140,7 +132,6 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
               protected sectionService: SectionsService,
               protected submissionService: SubmissionService,
               protected translate: TranslateService,
-              protected workspaceItemDataService: WorkspaceitemDataService,
               @Inject(GLOBAL_CONFIG) protected EnvConfig: GlobalConfig,
               @Inject('collectionIdProvider') public injectedCollectionId: string,
               @Inject('sectionDataProvider') public injectedSectionData: SectionDataObject,
@@ -157,16 +148,11 @@ export class SubmissionSectionformComponent extends SectionModelComponent {
     this.formConfigService.getConfigByHref(this.sectionData.config).pipe(
       map((configData: ConfigData) => configData.payload),
       tap((config: SubmissionFormsModel) => this.formConfig = config),
-      flatMap(() =>
+      flatMap(() => this.sectionService.getSectionData(this.submissionId, this.sectionData.id)),
-        combineLatestObservable(
-          this.sectionService.getSectionData(this.submissionId, this.sectionData.id),
-          this.workspaceItemDataService.findById(this.submissionId).pipe(getSucceededRemoteData(), map((wsiRD: RemoteData<WorkspaceItem>) => wsiRD.payload))
-        )),
       take(1))
-      .subscribe(([sectionData, workspaceItem]: [WorkspaceitemSectionFormObject, WorkspaceItem]) => {
+      .subscribe((sectionData: WorkspaceitemSectionFormObject) => {
         if (isUndefined(this.formModel)) {
           this.sectionData.errors = [];
-          this.workspaceItem = workspaceItem;
           // Is the first loading so init form
           this.initForm(sectionData);
           this.sectionData.data = sectionData;