Use JSON field for document ids

src-ui/src/app/components/common/input/document-link/document-link.component.spec.ts

@@ -79,6 +79,21 @@ describe('DocumentLinkComponent', () => {
     component.documentsInput$.next('foo')
   })
 
+  it('should load values correctly', () => {
+    jest.spyOn(documentService, 'getCachedMany').mockImplementation((ids) => {
+      return of(documents.filter((d) => ids.includes(d.id)))
+    })
+    component.writeValue([12, 23])
+    expect(component.value).toEqual([12, 23])
+    expect(component.selectedDocuments).toEqual([documents[1], documents[2]])
+    component.writeValue(null)
+    expect(component.value).toEqual([])
+    expect(component.selectedDocuments).toEqual([])
+    component.writeValue([])
+    expect(component.value).toEqual([])
+    expect(component.selectedDocuments).toEqual([])
+  })
+
   it('should support unselect', () => {
     const getSpy = jest.spyOn(documentService, 'getCachedMany')
     getSpy.mockImplementation((ids) => {

src-ui/src/app/components/common/input/document-link/document-link.component.ts

@@ -52,15 +52,20 @@ export class DocumentLinkComponent
   }
 
   writeValue(documentIDs: number[]): void {
-    this.loading = true
-    this.documentsService
-      .getCachedMany(documentIDs)
-      .pipe(takeUntil(this.unsubscribeNotifier))
-      .subscribe((documents) => {
-        this.loading = false
-        this.selectedDocuments = documents
-        super.writeValue(documentIDs)
-      })
+    if (!documentIDs || documentIDs.length === 0) {
+      this.selectedDocuments = []
+      super.writeValue([])
+    } else {
+      this.loading = true
+      this.documentsService
+        .getCachedMany(documentIDs)
+        .pipe(takeUntil(this.unsubscribeNotifier))
+        .subscribe((documents) => {
+          this.loading = false
+          this.selectedDocuments = documents
+          super.writeValue(documentIDs)
+        })
+    }
   }
 
   private loadDocs() {