created tabs, working on concat field lookups

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

@@ -56,11 +56,10 @@ export class RelationshipTypeService {
         /* Flatten the page so we can treat it like an observable */
         switchMap((typeListRD: RemoteData<PaginatedList<RelationshipType>>) => typeListRD.payload.page),
         switchMap((type: RelationshipType) => {
-          if (type.leftLabel === label) return this.checkType(type, firstType, secondType);
-          else if (type.rightLabel === label) return this.checkType(type, secondType, firstType);
+          if (type.rightLabel === label) return this.checkType(type, firstType, secondType);
+          else if (type.leftLabel === label) return this.checkType(type, secondType, firstType);
           else return [];
         }),
-        tap((t) => console.log(t))
       );
   }
 

src/app/core/dspace-rest-v2/mocks/mock-response-map.ts

@@ -6,5 +6,5 @@ export class MockResponseMap extends Map<string, any> {};
 export const MOCK_RESPONSE_MAP: InjectionToken<MockResponseMap> = new InjectionToken<MockResponseMap>('mockResponseMap');
 
 export const mockResponseMap: MockResponseMap = new Map([
-  [ '/config/submissionforms/traditionalpageone', mockSubmissionResponse ]
+  // [ '/config/submissionforms/traditionalpageone', mockSubmissionResponse ]
 ]);

src/app/shared/form/builder/ds-dynamic-form-ui/ds-dynamic-form-control-container.component.ts

@@ -4,7 +4,8 @@ import {
   ComponentFactoryResolver,
   ContentChildren,
   EventEmitter,
-  Input, NgZone,
+  Input,
+  NgZone,
   OnChanges,
   OnInit,
   Output,
@@ -69,7 +70,7 @@ import { DsDynamicFormArrayComponent } from './models/array-group/dynamic-form-a
 import { DsDynamicRelationGroupComponent } from './models/relation-group/dynamic-relation-group.components';
 import { DYNAMIC_FORM_CONTROL_TYPE_RELATION_GROUP } from './models/relation-group/dynamic-relation-group.model';
 import { DsDatePickerInlineComponent } from './models/date-picker-inline/dynamic-date-picker-inline.component';
-import { map, switchMap, take, tap } from 'rxjs/operators';
+import { map, switchMap, take } from 'rxjs/operators';
 import { SelectableListState } from '../../../object-list/selectable-list/selectable-list.reducer';
 import { Observable } from 'rxjs';
 import { SearchResult } from '../../../search/search-result.model';
@@ -81,14 +82,7 @@ import { DsDynamicDisabledComponent } from './models/disabled/dynamic-disabled.c
 import { DYNAMIC_FORM_CONTROL_TYPE_DISABLED } from './models/disabled/dynamic-disabled.model';
 import { DsDynamicLookupRelationModalComponent } from './relation-lookup-modal/dynamic-lookup-relation-modal.component';
 import { ItemViewMode } from '../../../items/item-type-decorator';
-import { MetadataRepresentationType } from '../../../../core/shared/metadata-representation/metadata-representation.model';
-import { MetadatumRepresentation } from '../../../../core/shared/metadata-representation/metadatum/metadatum-representation.model';
-import { relationship } from '../../../../core/cache/builders/build-decorators';
 import { ItemMetadataRepresentation } from '../../../../core/shared/metadata-representation/item/item-metadata-representation.model';
-import { RelationshipTypeService } from '../../../../core/data/relationship-type.service';
-import { RelationshipType } from '../../../../core/shared/item-relationships/relationship-type.model';
-import { RelationshipOptions } from '../models/relationship-options.model';
-import { DsDynamicInputModel } from './models/ds-dynamic-input.model';
 import { getSucceededRemoteData } from '../../../../core/shared/operators';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { Item } from '../../../../core/shared/item.model';

src/app/shared/form/builder/ds-dynamic-form-ui/models/ds-dynamic-concat.model.ts

@@ -2,6 +2,8 @@ import { DynamicFormControlLayout, DynamicFormGroupModel, DynamicFormGroupModelC
 import { isNotEmpty } from '../../../../empty.util';
 import { DsDynamicInputModel } from './ds-dynamic-input.model';
 import { FormFieldMetadataValueObject } from '../../models/form-field-metadata-value.model';
+import { WorkspaceItem } from '../../../../../core/submission/models/workspaceitem.model';
+import { RelationshipOptions } from '../../models/relationship-options.model';
 
 export const CONCAT_GROUP_SUFFIX = '_CONCAT_GROUP';
 export const CONCAT_FIRST_INPUT_SUFFIX = '_CONCAT_FIRST_INPUT';
@@ -9,12 +11,19 @@ export const CONCAT_SECOND_INPUT_SUFFIX = '_CONCAT_SECOND_INPUT';
 
 export interface DynamicConcatModelConfig extends DynamicFormGroupModelConfig {
   separator: string;
+  value?: any;
+  workspaceItem: WorkspaceItem;
+  relationship?: RelationshipOptions;
+  repeatable: boolean;
 }
 
 export class DynamicConcatModel extends DynamicFormGroupModel {
 
   @serializable() separator: string;
   @serializable() hasLanguages = false;
+  @serializable() workspaceItem: WorkspaceItem;
+  @serializable() relationship?: RelationshipOptions;
+  @serializable() repeatable?: boolean;
   isCustomGroup = true;
 
   constructor(config: DynamicConcatModelConfig, layout?: DynamicFormControlLayout) {
@@ -22,6 +31,9 @@ export class DynamicConcatModel extends DynamicFormGroupModel {
     super(config, layout);
 
     this.separator = config.separator + ' ';
+    this.relationship = config.relationship;
+    this.workspaceItem = config.workspaceItem;
+    this.repeatable = config.repeatable;
   }
 
   get value() {

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

@@ -5,77 +5,22 @@
         <span aria-hidden="true">&times;</span>
     </button>
 </div>
-<div class="modal-body" *ngVar="(resultsRD$ | async) as resultsRD">
-    <div class="row">
-        <ds-search-sidebar class="col-4" id="search-sidebar"
-                           [resultCount]="(resultsRD$ | async)?.payload?.totalElements"
-                           [inPlaceSearch]="true"></ds-search-sidebar>
-        <div class="col-8">
-            <form class="input-group mb-3" #queryForm="ngForm"
-                  (ngSubmit)="search(queryForm.value.query)">
-                <input type="text" class="form-control" name="query" [placeholder]="'submission.sections.describe.relationship-lookup.placeholder' | translate"
-                       [ngModel]="searchQuery">
-                <div class="input-group-append">
-                    <button class="btn btn-outline-secondary" type="submit">{{ ('submission.sections.describe.relationship-lookup.search' | translate) }}</button>
-                </div>
-            </form>
-            <div *ngIf="repeatable" class="position-absolute">
-                <div class="input-group mb-3">
-                    <div class="input-group-prepend">
-                        <div class="input-group-text">
-                            <!-- In theory we don't need separate checkboxes for this,
-                            but I wasn't able to get this to work correctly without them.
-                            Checkboxes that are in the indeterminate state always switch to checked when clicked
-                            This seemed like the cleanest and clearest solution to solve this issue for now.
-                            -->
-                            <input *ngIf="!allSelected && !(someSelected$ | async)"
-                                   type="checkbox"
-                                   [indeterminate]="false"
-                                   (change)="selectAll()">
-                            <input *ngIf="!allSelected && (someSelected$ | async)"
-                                   type="checkbox"
-                                   [indeterminate]="true"
-                                   (change)="deselectAll()">
-                            <input *ngIf="allSelected" type="checkbox"
-                                   [checked]="true"
-                                   (change)="deselectAll()">
-                        </div>
-                    </div>
-                    <div ngbDropdown class="input-group-append">
-                        <button *ngIf="selectAllLoading" type="button"
-                                class="btn btn-outline-secondary rounded-right">
-                            <span class="spinner-border spinner-border-sm" role="status"
-                              aria-hidden="true"></span>
-                            <span class="sr-only">{{ ('submission.sections.describe.relationship-lookup.loading' | translate) }}</span>
-                        </button>
-                        <button id="resultdropdown" type="button"
-                                ngbDropdownToggle
-                                class="btn btn-outline-secondary dropdown-toggle-split"
-                                data-toggle="dropdown" aria-haspopup="true"
-                                aria-expanded="false"
-                                [hidden]="selectAllLoading">
-                            <span class="sr-only">{{ ('submission.sections.describe.relationship-lookup.toggle-dropdown' | translate) }}</span>
-                        </button>
-                        <div ngbDropdownMenu aria-labelledby="resultdropdown">
-                            <button class="dropdown-item" (click)="selectPage(resultsRD?.payload?.page)">{{ ('submission.sections.describe.relationship-lookup.select-page' | translate) }}</button>
-                            <button class="dropdown-item" (click)="deselectPage(resultsRD?.payload?.page)">{{ ('submission.sections.describe.relationship-lookup.deselect-page' | translate) }}</button>
-                            <button class="dropdown-item" (click)="selectAll()">{{ ('submission.sections.describe.relationship-lookup.select-all' | translate) }}</button>
-                            <button class="dropdown-item" (click)="deselectAll()">{{ ('submission.sections.describe.relationship-lookup.deselect-all' | translate) }}</button>
-                        </div>
-                    </div>
-                </div>
-            </div>
-            <ds-search-results [searchResults]="resultsRD"
-                               [sortConfig]="this.searchConfig?.sort"
-                               [searchConfig]="this.searchConfig"
-                               [selectable]="true"
-                               [selectionConfig]="{ repeatable: repeatable, listId: listId }"
-                               (deselectObject)="deselect($event)"
-                               (selectObject)="select($event)"
-            >
-            </ds-search-results>
-        </div>
-    </div>
+<div class="modal-body">
+    <ngb-tabset>
+        <ngb-tab title="Search">
+            <ng-template ngbTabContent>
+                <ds-dynamic-lookup-relation-search-tab
+                        [label]="label"
+                        [itemRD$]="itemRD$"
+                        [selection$]="selection$"
+                        [listId]="listId"
+                        [relationship]="relationship"
+                        [repeatable]="repeatable">
+                </ds-dynamic-lookup-relation-search-tab>
+            </ng-template>
+        </ngb-tab>
+    </ngb-tabset>
+
 </div>
 <div class="modal-footer">
     <small>{{ ('submission.sections.describe.relationship-lookup.selected' | translate:{size: (selection$ | async)?.length || 0}) }}</small>

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

@@ -1,11 +1,3 @@
-.result-list-element {
-    flex: 1;
-}
-
 .modal-footer {
     justify-content: space-between;
 }
-
-.position-absolute {
-    right: $spacer;
-}

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

@@ -1,32 +1,14 @@
-import { Component, NgZone, OnDestroy, OnInit } from '@angular/core';
-import { PaginatedList } from '../../../../../core/data/paginated-list';
-import { SearchResult } from '../../../../search/search-result.model';
-import { RemoteData } from '../../../../../core/data/remote-data';
-import { from, Observable, ReplaySubject } from 'rxjs';
-import { SearchService } from '../../../../../core/shared/search/search.service';
-import { PaginatedSearchOptions } from '../../../../search/paginated-search-options.model';
-import { DSpaceObject } from '../../../../../core/shared/dspace-object.model';
-import { PaginationComponentOptions } from '../../../../pagination/pagination-component-options.model';
+import { Component, OnInit } from '@angular/core';
+import { Observable } from 'rxjs';
 import { NgbActiveModal } from '@ng-bootstrap/ng-bootstrap';
-import { hasValue, hasValueOperator, isNotEmpty } from '../../../../empty.util';
-import { concat, map, mergeMap, multicast, switchMap, take, takeWhile, tap } from 'rxjs/operators';
-import { Router } from '@angular/router';
+import { hasValue } from '../../../../empty.util';
+import { map } from 'rxjs/operators';
 import { SEARCH_CONFIG_SERVICE } from '../../../../../+my-dspace-page/my-dspace-page.component';
 import { SearchConfigurationService } from '../../../../../core/shared/search/search-configuration.service';
 import { SelectableListService } from '../../../../object-list/selectable-list/selectable-list.service';
 import { SelectableListState } from '../../../../object-list/selectable-list/selectable-list.reducer';
 import { ListableObject } from '../../../../object-collection/shared/listable-object.model';
-import { RouteService } from '../../../../services/route.service';
-import { getSucceededRemoteData } from '../../../../../core/shared/operators';
-import { RelationshipTypeService } from '../../../../../core/data/relationship-type.service';
-import { RelationshipType } from '../../../../../core/shared/item-relationships/relationship-type.model';
-import { RelationshipService } from '../../../../../core/data/relationship.service';
-import { Item } from '../../../../../core/shared/item.model';
 import { RelationshipOptions } from '../../models/relationship-options.model';
-import { Relationship } from '../../../../../core/shared/item-relationships/relationship.model';
-import { Store } from '@ngrx/store';
-import { AppState } from '../../../../../app.reducer';
-import { AddRelationshipAction, RemoveRelationshipAction } from './relationship.actions';
 
 @Component({
   selector: 'ds-dynamic-lookup-relation-modal',
@@ -40,172 +22,26 @@ import { AddRelationshipAction, RemoveRelationshipAction } from './relationship.
   ]
 })
 
-export class DsDynamicLookupRelationModalComponent implements OnInit, OnDestroy {
+export class DsDynamicLookupRelationModalComponent implements OnInit {
   label: string;
   relationship: RelationshipOptions;
   listId: string;
-  resultsRD$: Observable<RemoteData<PaginatedList<SearchResult<Item>>>>;
-  searchConfig: PaginatedSearchOptions;
-  repeatable: boolean;
-  searchQuery;
-  allSelected: boolean;
-  someSelected$: Observable<boolean>;
-  selectAllLoading: boolean;
-  subscription;
-  initialPagination = Object.assign(new PaginationComponentOptions(), {
-    id: 'submission-relation-list',
-    pageSize: 5
-  });
-  selection$: Observable<ListableObject[]>;
   itemRD$;
+  repeatable: boolean;
+  selection$: Observable<ListableObject[]>;
 
   constructor(
     public modal: NgbActiveModal,
-    private searchService: SearchService,
-    private router: Router,
     private selectableListService: SelectableListService,
-    private searchConfigService: SearchConfigurationService,
-    private routeService: RouteService,
-    private relationshipService: RelationshipService,
-    private relationshipTypeService: RelationshipTypeService,
-    private zone: NgZone,
-    private store: Store<AppState>
   ) {
   }
 
   ngOnInit(): void {
-    this.resetRoute();
-    this.routeService.setParameter('fixedFilterQuery', this.relationship.filter);
-    this.routeService.setParameter('configuration', this.relationship.searchConfiguration);
-
     this.selection$ = this.selectableListService.getSelectableList(this.listId).pipe(map((listState: SelectableListState) => hasValue(listState) && hasValue(listState.selection) ? listState.selection : []));
-    this.someSelected$ = this.selection$.pipe(map((selection) => isNotEmpty(selection)));
-    this.resultsRD$ = this.searchConfigService.paginatedSearchOptions.pipe(
-      map((options) => {
-        return Object.assign(new PaginatedSearchOptions({}), options, { fixedFilter: this.relationship.filter, configuration: this.relationship.searchConfiguration })
-      }),
-      switchMap((options) => {
-        this.searchConfig = options;
-        return this.searchService.search(options).pipe(
-          /* Make sure to only listen to the first x results, until loading is finished */
-          /* TODO: in Rxjs 6.4.0 and up, we can replace this by takeWhile(predicate, true) - see https://stackoverflow.com/a/44644237 */
-          multicast(
-            () => new ReplaySubject(1),
-            subject => subject.pipe(
-              takeWhile((rd: RemoteData<PaginatedList<SearchResult<DSpaceObject>>>) => rd.isLoading),
-              concat(subject.pipe(take(1))
-              )
-            )
-          ) as any
-        )
-      })
-    );
-
   }
 
-  search(query: string) {
-    this.allSelected = false;
-    this.searchQuery = query;
-    this.resetRoute();
-  }
 
   close() {
     this.modal.close();
   }
-
-  resetRoute() {
-    this.router.navigate([], {
-      queryParams: Object.assign({}, { page: 1, query: this.searchQuery, pageSize: this.initialPagination.pageSize }),
-    });
-  }
-
-  selectPage(page: SearchResult<Item>[]) {
-    this.selection$
-      .pipe(take(1))
-      .subscribe((selection: SearchResult<Item>[]) => {
-        const filteredPage = page.filter((pageItem) => selection.findIndex((selected) => selected.equals(pageItem)) < 0)
-        this.select(...filteredPage);
-      });
-    this.selectableListService.select(this.listId, page);
-  }
-
-  deselectPage(page: SearchResult<Item>[]) {
-    this.allSelected = false;
-    this.selection$
-      .pipe(take(1))
-      .subscribe((selection: SearchResult<Item>[]) => {
-        const filteredPage = page.filter((pageItem) => selection.findIndex((selected) => selected.equals(pageItem)) >= 0)
-        this.deselect(...filteredPage);
-      });
-    this.selectableListService.deselect(this.listId, page);
-  }
-
-  selectAll() {
-    this.allSelected = true;
-    this.selectAllLoading = true;
-    const fullPagination = Object.assign(new PaginationComponentOptions(), {
-      query: this.searchQuery,
-      currentPage: 1,
-      pageSize: 9999
-    });
-    const fullSearchConfig = Object.assign(this.searchConfig, { pagination: fullPagination });
-    const results$ = this.searchService.search(fullSearchConfig) as Observable<RemoteData<PaginatedList<SearchResult<Item>>>>;
-    results$.pipe(
-      getSucceededRemoteData(),
-      map((resultsRD) => resultsRD.payload.page),
-      tap(() => this.selectAllLoading = false),
-    ).subscribe((results) => {
-        this.selection$
-          .pipe(take(1))
-          .subscribe((selection: SearchResult<Item>[]) => {
-            const filteredResults = results.filter((pageItem) => selection.findIndex((selected) => selected.equals(pageItem)) < 0);
-            this.select(...filteredResults);
-          });
-        this.selectableListService.select(this.listId, results);
-      }
-    );
-  }
-
-  deselectAll() {
-    this.allSelected = false;
-    this.selection$
-      .pipe(take(1))
-      .subscribe((selection: SearchResult<Item>[]) => this.deselect(...selection));
-    this.selectableListService.deselectAll(this.listId);
-  }
-
-
-  select(...selectableObjects: SearchResult<Item>[]) {
-    this.zone.runOutsideAngular(
-      () => this.itemRD$
-        .pipe(
-          getSucceededRemoteData(),
-          tap((itemRD: RemoteData<Item>) => {
-            return selectableObjects.forEach((object) =>
-              this.store.dispatch(new AddRelationshipAction(itemRD.payload, object.indexableObject, this.relationship.relationshipType))
-            );
-          })
-        ).subscribe());
-  }
-
-
-  deselect(...selectableObjects: SearchResult<Item>[]) {
-    this.zone.runOutsideAngular(
-      () => this.itemRD$.pipe(
-        getSucceededRemoteData(),
-        tap((itemRD: RemoteData<Item>) => {
-          return selectableObjects.forEach((object) =>
-            this.store.dispatch(new RemoveRelationshipAction(itemRD.payload, object.indexableObject, this.relationship.relationshipType))
-          );
-        })
-      ).subscribe()
-    );
-  }
-
-  ngOnDestroy(): void {
-    if (hasValue(this.subscription)
-    ) {
-      this.subscription.unsubscribe();
-    }
-  }
 }

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

@@ -69,21 +69,22 @@ export class RelationshipEffects {
 
 
   private createIdentifier(item1: Item, item2: Item, relationshipType: string): string {
-    return `${item1.uuid}-${item2.uuid}-${relationshipType}$`;
+    return `${item1.uuid}-${item2.uuid}-${relationshipType}`;
   }
 
 
   private addRelationship(item1: Item, item2: Item, relationshipType: string) {
-    const type1: string = item1.firstMetadataValue('relationship.type');
+    // const type1: string = item1.firstMetadataValue('relationship.type');
+    const type1: string = 'JournalVolume';
     const type2: string = item2.firstMetadataValue('relationship.type');
     return this.relationshipTypeService.getRelationshipTypeByLabelAndTypes(relationshipType, type1, type2)
       .pipe(
         mergeMap((type: RelationshipType) => {
-            const isSwitched = type.rightLabel === relationshipType;
+            const isSwitched = type.leftLabel === relationshipType;
             if (isSwitched) {
-              return this.relationshipService.addRelationship(type.id, cloneDeep(item2), cloneDeep(item1));
+              return this.relationshipService.addRelationship(type.id, item2, item1);
             } else {
-              return this.relationshipService.addRelationship(type.id, cloneDeep(item1), cloneDeep(item2));
+              return this.relationshipService.addRelationship(type.id, item1, item2);
             }
           }
         )

src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/dynamic-lookup-relation-search-tab.component.html

@@ -0,0 +1,70 @@
+<div class="row" *ngVar="(resultsRD$ | async) as resultsRD">
+    <ds-search-sidebar class="col-4" id="search-sidebar"
+                       [resultCount]="(resultsRD$ | async)?.payload?.totalElements"
+                       [inPlaceSearch]="true"></ds-search-sidebar>
+    <div class="col-8">
+        <form class="input-group mb-3" #queryForm="ngForm"
+              (ngSubmit)="search(queryForm.value.query)">
+            <input type="text" class="form-control" name="query" [placeholder]="'submission.sections.describe.relationship-lookup.placeholder' | translate"
+                   [ngModel]="searchQuery">
+            <div class="input-group-append">
+                <button class="btn btn-outline-secondary" type="submit">{{ ('submission.sections.describe.relationship-lookup.search' | translate) }}</button>
+            </div>
+        </form>
+        <div *ngIf="repeatable" class="position-absolute">
+            <div class="input-group mb-3">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">
+                        <!-- In theory we don't need separate checkboxes for this,
+                        but I wasn't able to get this to work correctly without them.
+                        Checkboxes that are in the indeterminate state always switch to checked when clicked
+                        This seemed like the cleanest and clearest solution to solve this issue for now.
+                        -->
+                        <input *ngIf="!allSelected && !(someSelected$ | async)"
+                               type="checkbox"
+                               [indeterminate]="false"
+                               (change)="selectAll()">
+                        <input *ngIf="!allSelected && (someSelected$ | async)"
+                               type="checkbox"
+                               [indeterminate]="true"
+                               (change)="deselectAll()">
+                        <input *ngIf="allSelected" type="checkbox"
+                               [checked]="true"
+                               (change)="deselectAll()">
+                    </div>
+                </div>
+                <div ngbDropdown class="input-group-append">
+                    <button *ngIf="selectAllLoading" type="button"
+                            class="btn btn-outline-secondary rounded-right">
+                            <span class="spinner-border spinner-border-sm" role="status"
+                                  aria-hidden="true"></span>
+                        <span class="sr-only">{{ ('submission.sections.describe.relationship-lookup.loading' | translate) }}</span>
+                    </button>
+                    <button id="resultdropdown" type="button"
+                            ngbDropdownToggle
+                            class="btn btn-outline-secondary dropdown-toggle-split"
+                            data-toggle="dropdown" aria-haspopup="true"
+                            aria-expanded="false"
+                            [hidden]="selectAllLoading">
+                        <span class="sr-only">{{ ('submission.sections.describe.relationship-lookup.toggle-dropdown' | translate) }}</span>
+                    </button>
+                    <div ngbDropdownMenu aria-labelledby="resultdropdown">
+                        <button class="dropdown-item" (click)="selectPage(resultsRD?.payload?.page)">{{ ('submission.sections.describe.relationship-lookup.select-page' | translate) }}</button>
+                        <button class="dropdown-item" (click)="deselectPage(resultsRD?.payload?.page)">{{ ('submission.sections.describe.relationship-lookup.deselect-page' | translate) }}</button>
+                        <button class="dropdown-item" (click)="selectAll()">{{ ('submission.sections.describe.relationship-lookup.select-all' | translate) }}</button>
+                        <button class="dropdown-item" (click)="deselectAll()">{{ ('submission.sections.describe.relationship-lookup.deselect-all' | translate) }}</button>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <ds-search-results [searchResults]="resultsRD"
+                           [sortConfig]="this.searchConfig?.sort"
+                           [searchConfig]="this.searchConfig"
+                           [selectable]="true"
+                           [selectionConfig]="{ repeatable: repeatable, listId: listId }"
+                           (deselectObject)="deselect($event)"
+                           (selectObject)="select($event)"
+        >
+        </ds-search-results>
+    </div>
+</div>

src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/dynamic-lookup-relation-search-tab.component.scss

@@ -0,0 +1,3 @@
+.position-absolute {
+    right: $spacer;
+}

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

@@ -0,0 +1,204 @@
+import { Component, Input, NgZone, OnDestroy, OnInit } from '@angular/core';
+import { SEARCH_CONFIG_SERVICE } from '../../../../../../+my-dspace-page/my-dspace-page.component';
+import { SearchConfigurationService } from '../../../../../../core/shared/search/search-configuration.service';
+import { Item } from '../../../../../../core/shared/item.model';
+import { PaginatedSearchOptions } from '../../../../../search/paginated-search-options.model';
+import { SearchResult } from '../../../../../search/search-result.model';
+import { PaginatedList } from '../../../../../../core/data/paginated-list';
+import { RemoteData } from '../../../../../../core/data/remote-data';
+import { Observable, ReplaySubject } from 'rxjs';
+import { RelationshipOptions } from '../../../models/relationship-options.model';
+import { PaginationComponentOptions } from '../../../../../pagination/pagination-component-options.model';
+import { ListableObject } from '../../../../../object-collection/shared/listable-object.model';
+import { SearchService } from '../../../../../../core/shared/search/search.service';
+import { Router } from '@angular/router';
+import { SelectableListService } from '../../../../../object-list/selectable-list/selectable-list.service';
+import { RouteService } from '../../../../../services/route.service';
+import { RelationshipService } from '../../../../../../core/data/relationship.service';
+import { RelationshipTypeService } from '../../../../../../core/data/relationship-type.service';
+import { Store } from '@ngrx/store';
+import { AppState } from '../../../../../../app.reducer';
+import { SelectableListState } from '../../../../../object-list/selectable-list/selectable-list.reducer';
+import { hasValue, isNotEmpty } from '../../../../../empty.util';
+import { concat, map, multicast, switchMap, take, takeWhile, tap } from 'rxjs/operators';
+import { DSpaceObject } from '../../../../../../core/shared/dspace-object.model';
+import { getSucceededRemoteData } from '../../../../../../core/shared/operators';
+import { AddRelationshipAction, RemoveRelationshipAction } from '../relationship.actions';
+
+@Component({
+  selector: 'ds-dynamic-lookup-relation-search-tab',
+  styleUrls: ['./dynamic-lookup-relation-search-tab.component.scss'],
+  templateUrl: './dynamic-lookup-relation-search-tab.component.html',
+  providers: [
+    {
+      provide: SEARCH_CONFIG_SERVICE,
+      useClass: SearchConfigurationService
+    }
+  ]
+})
+
+export class DsDynamicLookupRelationSearchTabComponent implements OnInit, OnDestroy {
+  @Input() label: string;
+  @Input() relationship: RelationshipOptions;
+  @Input() listId: string;
+  @Input() itemRD$;
+  @Input() repeatable: boolean;
+  @Input() selection$: Observable<ListableObject[]>;
+
+  resultsRD$: Observable<RemoteData<PaginatedList<SearchResult<Item>>>>;
+  searchConfig: PaginatedSearchOptions;
+  searchQuery;
+  allSelected: boolean;
+  someSelected$: Observable<boolean>;
+  selectAllLoading: boolean;
+  subscription;
+  initialPagination = Object.assign(new PaginationComponentOptions(), {
+    id: 'submission-relation-list',
+    pageSize: 5
+  });
+
+  constructor(
+    private searchService: SearchService,
+    private router: Router,
+    private selectableListService: SelectableListService,
+    private searchConfigService: SearchConfigurationService,
+    private routeService: RouteService,
+    private relationshipService: RelationshipService,
+    private relationshipTypeService: RelationshipTypeService,
+    private zone: NgZone,
+    private store: Store<AppState>
+  ) {
+  }
+
+  ngOnInit(): void {
+    this.resetRoute();
+    this.routeService.setParameter('fixedFilterQuery', this.relationship.filter);
+    this.routeService.setParameter('configuration', this.relationship.searchConfiguration);
+
+    this.selection$ = this.selectableListService.getSelectableList(this.listId).pipe(map((listState: SelectableListState) => hasValue(listState) && hasValue(listState.selection) ? listState.selection : []));
+    this.someSelected$ = this.selection$.pipe(map((selection) => isNotEmpty(selection)));
+    this.resultsRD$ = this.searchConfigService.paginatedSearchOptions.pipe(
+      map((options) => {
+        return Object.assign(new PaginatedSearchOptions({}), options, { fixedFilter: this.relationship.filter, configuration: this.relationship.searchConfiguration })
+      }),
+      switchMap((options) => {
+        this.searchConfig = options;
+        return this.searchService.search(options).pipe(
+          /* Make sure to only listen to the first x results, until loading is finished */
+          /* TODO: in Rxjs 6.4.0 and up, we can replace this with takeWhile(predicate, true) - see https://stackoverflow.com/a/44644237 */
+          multicast(
+            () => new ReplaySubject(1),
+            subject => subject.pipe(
+              takeWhile((rd: RemoteData<PaginatedList<SearchResult<DSpaceObject>>>) => rd.isLoading),
+              concat(subject.pipe(take(1))
+              )
+            )
+          ) as any
+        )
+      })
+    );
+
+  }
+
+  search(query: string) {
+    this.allSelected = false;
+    this.searchQuery = query;
+    this.resetRoute();
+  }
+
+  resetRoute() {
+    this.router.navigate([], {
+      queryParams: Object.assign({}, { page: 1, query: this.searchQuery, pageSize: this.initialPagination.pageSize }),
+    });
+  }
+
+  selectPage(page: SearchResult<Item>[]) {
+    this.selection$
+      .pipe(take(1))
+      .subscribe((selection: SearchResult<Item>[]) => {
+        const filteredPage = page.filter((pageItem) => selection.findIndex((selected) => selected.equals(pageItem)) < 0)
+        this.select(...filteredPage);
+      });
+    this.selectableListService.select(this.listId, page);
+  }
+
+  deselectPage(page: SearchResult<Item>[]) {
+    this.allSelected = false;
+    this.selection$
+      .pipe(take(1))
+      .subscribe((selection: SearchResult<Item>[]) => {
+        const filteredPage = page.filter((pageItem) => selection.findIndex((selected) => selected.equals(pageItem)) >= 0)
+        this.deselect(...filteredPage);
+      });
+    this.selectableListService.deselect(this.listId, page);
+  }
+
+  selectAll() {
+    this.allSelected = true;
+    this.selectAllLoading = true;
+    const fullPagination = Object.assign(new PaginationComponentOptions(), {
+      query: this.searchQuery,
+      currentPage: 1,
+      pageSize: 9999
+    });
+    const fullSearchConfig = Object.assign(this.searchConfig, { pagination: fullPagination });
+    const results$ = this.searchService.search(fullSearchConfig) as Observable<RemoteData<PaginatedList<SearchResult<Item>>>>;
+    results$.pipe(
+      getSucceededRemoteData(),
+      map((resultsRD) => resultsRD.payload.page),
+      tap(() => this.selectAllLoading = false),
+    ).subscribe((results) => {
+        this.selection$
+          .pipe(take(1))
+          .subscribe((selection: SearchResult<Item>[]) => {
+            const filteredResults = results.filter((pageItem) => selection.findIndex((selected) => selected.equals(pageItem)) < 0);
+            this.select(...filteredResults);
+          });
+        this.selectableListService.select(this.listId, results);
+      }
+    );
+  }
+
+  deselectAll() {
+    this.allSelected = false;
+    this.selection$
+      .pipe(take(1))
+      .subscribe((selection: SearchResult<Item>[]) => this.deselect(...selection));
+    this.selectableListService.deselectAll(this.listId);
+  }
+
+
+  select(...selectableObjects: SearchResult<Item>[]) {
+    this.zone.runOutsideAngular(
+      () => this.itemRD$
+        .pipe(
+          getSucceededRemoteData(),
+          tap((itemRD: RemoteData<Item>) => {
+            return selectableObjects.forEach((object) =>
+              this.store.dispatch(new AddRelationshipAction(itemRD.payload, object.indexableObject, this.relationship.relationshipType))
+            );
+          })
+        ).subscribe());
+  }
+
+
+  deselect(...selectableObjects: SearchResult<Item>[]) {
+    this.zone.runOutsideAngular(
+      () => this.itemRD$.pipe(
+        getSucceededRemoteData(),
+        tap((itemRD: RemoteData<Item>) => {
+          return selectableObjects.forEach((object) =>
+            this.store.dispatch(new RemoveRelationshipAction(itemRD.payload, object.indexableObject, this.relationship.relationshipType))
+          );
+        })
+      ).subscribe()
+    );
+  }
+
+  ngOnDestroy(): void {
+    if (hasValue(this.subscription)
+    ) {
+      this.subscription.unsubscribe();
+    }
+  }
+}

src/app/shared/object-list/object-list.component.ts

@@ -116,7 +116,6 @@ export class ObjectListComponent {
     if (value) {
       this.selectionService.selectSingle(this.selectionConfig.listId, object);
       this.selectObject.emit(object);
-
     } else {
       this.selectionService.deselectSingle(this.selectionConfig.listId, object);
       this.deselectObject.emit(object);
@@ -139,7 +138,5 @@ export class ObjectListComponent {
         this.selectObject.emit(object);
       }
     });
-
-
   }
 }

src/app/shared/shared.module.ts

@@ -160,6 +160,7 @@ import { SearchFacetRangeOptionComponent } from './search/search-filters/search-
 import { SearchSwitchConfigurationComponent } from './search/search-switch-configuration/search-switch-configuration.component';
 import { SearchAuthorityFilterComponent } from './search/search-filters/search-filter/search-authority-filter/search-authority-filter.component';
 import { DsDynamicDisabledComponent } from './form/builder/ds-dynamic-form-ui/models/disabled/dynamic-disabled.component';
+import { DsDynamicLookupRelationSearchTabComponent } from './form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/dynamic-lookup-relation-search-tab.component';
 
 const MODULES = [
   // Do NOT include UniversalModule, HttpModule, or JsonpModule here
@@ -360,7 +361,8 @@ const ENTRY_COMPONENTS = [
   SearchFacetOptionComponent,
   SearchFacetSelectedOptionComponent,
   SearchFacetRangeOptionComponent,
-  SearchAuthorityFilterComponent
+  SearchAuthorityFilterComponent,
+  DsDynamicLookupRelationSearchTabComponent
 ];
 
 const SHARED_ITEM_PAGE_COMPONENTS = [