Merge remote-tracking branch 'contributions/w2p-102415_Remote-lookup-…

…entity-on-admin-edit_contribute-7.4' into dspace-7.6

src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/dynamic-lookup-relation-modal.component.ts

@@ -29,6 +29,10 @@ import { RemoteDataBuildService } from '../../../../../core/cache/builders/remot
 import { getAllSucceededRemoteDataPayload } from '../../../../../core/shared/operators';
 import { followLink } from '../../../../utils/follow-link-config.model';
 import { RelationshipType } from '../../../../../core/shared/item-relationships/relationship-type.model';
+import { FindListOptions } from '../../../../../core/data/find-list-options.model';
+import { RequestParam } from '../../../../../core/cache/models/request-param.model';
+import { getFirstSucceededRemoteDataPayload } from '../../../../../core/shared/operators';
+import { PaginatedList } from '../../../../../core/data/paginated-list.model';
 
 @Component({
   selector: 'ds-dynamic-lookup-relation-modal',
@@ -173,6 +177,7 @@ export class DsDynamicLookupRelationModalComponent implements OnInit, OnDestroy
     if (!!this.currentItemIsLeftItem$) {
       this.currentItemIsLeftItem$.subscribe((isLeft) => {
         this.isLeft = isLeft;
+        this.label = this.relationshipType.leftwardType;
       });
     }
 
@@ -201,6 +206,19 @@ export class DsDynamicLookupRelationModalComponent implements OnInit, OnDestroy
       ).pipe(
         getAllSucceededRemoteDataPayload()
       );
+    } else {
+      const findListOptions = Object.assign({}, new FindListOptions(), {
+        elementsPerPage: 5,
+        currentPage: 1,
+        searchParams: [
+          new RequestParam('entityType', this.relationshipOptions.relationshipType)
+        ]
+      });
+      this.externalSourcesRD$ = this.externalSourceService.searchBy('findByEntityType', findListOptions,
+        true, true, followLink('entityTypes'))
+        .pipe(getFirstSucceededRemoteDataPayload(), map((r: PaginatedList<ExternalSource>) => {
+          return r.page;
+        }));
     }
 
     this.setTotals();