Fix: use static object for activedisplayfields to prevent changes (#8120)

src-ui/src/app/services/document-list-view.service.spec.ts

@@ -599,14 +599,17 @@ describe('DocumentListViewService', () => {
   it('should not filter out custom fields if settings not initialized', () => {
     const customFields = ['custom_field_1', 'custom_field_2']
     documentListViewService.displayFields = customFields as any
-    settingsService.displayFieldsInitialized = false
     expect(documentListViewService.displayFields).toEqual(customFields)
     jest.spyOn(settingsService, 'allDisplayFields', 'get').mockReturnValue([
       { id: DisplayField.ADDED, name: 'Added' },
       { id: DisplayField.TITLE, name: 'Title' },
       { id: 'custom_field_1', name: 'Custom Field 1' },
     ] as any)
-    settingsService.displayFieldsInitialized = true
+    settingsService.displayFieldsInit.emit(true)
+    expect(documentListViewService.displayFields).toEqual(['custom_field_1'])
+
+    // will now filter on set
+    documentListViewService.displayFields = customFields as any
     expect(documentListViewService.displayFields).toEqual(['custom_field_1'])
   })
 })

src-ui/src/app/services/document-list-view.service.ts

@@ -20,6 +20,10 @@ import { paramsFromViewState, paramsToViewState } from '../utils/query-params'
 import { DocumentService, SelectionData } from './rest/document.service'
 import { SettingsService } from './settings.service'
 
+const LIST_DEFAULT_DISPLAY_FIELDS: DisplayField[] = DEFAULT_DISPLAY_FIELDS.map(
+  (f) => f.id
+).filter((f) => f !== DisplayField.ADDED)
+
 /**
  * Captures the current state of the list view.
  */
@@ -102,6 +106,8 @@ export class DocumentListViewService {
 
   private _activeSavedViewId: number = null
 
+  private displayFieldsInitialized: boolean = false
+
   get activeSavedViewId() {
     return this._activeSavedViewId
   }
@@ -134,6 +140,19 @@ export class DocumentListViewService {
         localStorage.removeItem(DOCUMENT_LIST_SERVICE.CURRENT_VIEW_CONFIG)
       }
     }
+
+    this.settings.displayFieldsInit.subscribe(() => {
+      this.displayFieldsInitialized = true
+      if (this.activeListViewState.displayFields) {
+        this.activeListViewState.displayFields =
+          this.activeListViewState.displayFields.filter(
+            (field) =>
+              this.settings.allDisplayFields.find((f) => f.id === field) !==
+              undefined
+          )
+        this.saveDocumentListView()
+      }
+    })
   }
 
   private defaultListViewState(): ListViewState {
@@ -415,23 +434,17 @@ export class DocumentListViewService {
   }
 
   get displayFields(): DisplayField[] {
-    let fields =
-      this.activeListViewState.displayFields ??
-      DEFAULT_DISPLAY_FIELDS.map((f) => f.id)
-    if (!this.activeListViewState.displayFields) {
-      fields = fields.filter((f) => f !== DisplayField.ADDED)
-    }
-    return this.settings.displayFieldsInitialized
-      ? fields.filter(
+    return this.activeListViewState.displayFields ?? LIST_DEFAULT_DISPLAY_FIELDS
+  }
+
+  set displayFields(fields: DisplayField[]) {
+    this.activeListViewState.displayFields = this.displayFieldsInitialized
+      ? fields?.filter(
           (field) =>
             this.settings.allDisplayFields.find((f) => f.id === field) !==
             undefined
         )
       : fields
-  }
-
-  set displayFields(fields: DisplayField[]) {
-    this.activeListViewState.displayFields = fields
     this.saveDocumentListView()
   }
 

src-ui/src/app/services/settings.service.ts

@@ -274,7 +274,7 @@ export class SettingsService {
   public get allDisplayFields(): Array<{ id: DisplayField; name: string }> {
     return this._allDisplayFields
   }
-  public displayFieldsInitialized: boolean = false
+  public displayFieldsInit: EventEmitter<boolean> = new EventEmitter()
 
   constructor(
     rendererFactory: RendererFactory2,
@@ -382,10 +382,10 @@ export class SettingsService {
             }
           })
         )
-        this.displayFieldsInitialized = true
+        this.displayFieldsInit.emit(true)
       })
     } else {
-      this.displayFieldsInitialized = true
+      this.displayFieldsInit.emit(true)
     }
   }