Feature: Implement custom fields for documents (#4502)

Adds custom fields of certain data types, attachable to documents and searchable

Co-Authored-By: Trenton H <797416+stumpylog@users.noreply.github.com>

src-ui/src/app/components/manage/custom-fields/custom-fields.component.ts

@@ -0,0 +1,98 @@
+import { Component, OnInit } from '@angular/core'
+import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
+import { Subject, takeUntil } from 'rxjs'
+import {
+  DATA_TYPE_LABELS,
+  PaperlessCustomField,
+} from 'src/app/data/paperless-custom-field'
+import { PermissionsService } from 'src/app/services/permissions.service'
+import { CustomFieldsService } from 'src/app/services/rest/custom-fields.service'
+import { ToastService } from 'src/app/services/toast.service'
+import { ConfirmDialogComponent } from '../../common/confirm-dialog/confirm-dialog.component'
+import { CustomFieldEditDialogComponent } from '../../common/edit-dialog/custom-field-edit-dialog/custom-field-edit-dialog.component'
+import { EditDialogMode } from '../../common/edit-dialog/edit-dialog.component'
+import { ComponentWithPermissions } from '../../with-permissions/with-permissions.component'
+
+@Component({
+  selector: 'pngx-custom-fields',
+  templateUrl: './custom-fields.component.html',
+  styleUrls: ['./custom-fields.component.scss'],
+})
+export class CustomFieldsComponent
+  extends ComponentWithPermissions
+  implements OnInit
+{
+  public fields: PaperlessCustomField[] = []
+
+  private unsubscribeNotifier: Subject<any> = new Subject()
+  constructor(
+    private customFieldsService: CustomFieldsService,
+    public permissionsService: PermissionsService,
+    private modalService: NgbModal,
+    private toastService: ToastService
+  ) {
+    super()
+  }
+
+  ngOnInit() {
+    this.reload()
+  }
+
+  reload() {
+    this.customFieldsService
+      .listAll()
+      .pipe(takeUntil(this.unsubscribeNotifier))
+      .subscribe((r) => {
+        this.fields = r.results
+      })
+  }
+
+  editField(field: PaperlessCustomField) {
+    const modal = this.modalService.open(CustomFieldEditDialogComponent)
+    modal.componentInstance.dialogMode = field
+      ? EditDialogMode.EDIT
+      : EditDialogMode.CREATE
+    modal.componentInstance.object = field
+    modal.componentInstance.succeeded
+      .pipe(takeUntil(this.unsubscribeNotifier))
+      .subscribe((newField) => {
+        this.toastService.showInfo($localize`Saved field "${newField.name}".`)
+        this.customFieldsService.clearCache()
+        this.reload()
+      })
+    modal.componentInstance.failed
+      .pipe(takeUntil(this.unsubscribeNotifier))
+      .subscribe((e) => {
+        this.toastService.showError($localize`Error saving field.`, e)
+      })
+  }
+
+  deleteField(field: PaperlessCustomField) {
+    const modal = this.modalService.open(ConfirmDialogComponent, {
+      backdrop: 'static',
+    })
+    modal.componentInstance.title = $localize`Confirm delete field`
+    modal.componentInstance.messageBold = $localize`This operation will permanently delete this field.`
+    modal.componentInstance.message = $localize`This operation cannot be undone.`
+    modal.componentInstance.btnClass = 'btn-danger'
+    modal.componentInstance.btnCaption = $localize`Proceed`
+    modal.componentInstance.confirmClicked.subscribe(() => {
+      modal.componentInstance.buttonsEnabled = false
+      this.customFieldsService.delete(field).subscribe({
+        next: () => {
+          modal.close()
+          this.toastService.showInfo($localize`Deleted field`)
+          this.customFieldsService.clearCache()
+          this.reload()
+        },
+        error: (e) => {
+          this.toastService.showError($localize`Error deleting field.`, e)
+        },
+      })
+    })
+  }
+
+  getDataType(field: PaperlessCustomField): string {
+    return DATA_TYPE_LABELS.find((l) => l.id === field.data_type).name
+  }
+}