disable caching for reverse relations

client/src/app/core/core-services/relation-manager.service.ts

@@ -98,6 +98,17 @@ export class RelationManagerService {
         viewModel: BaseViewModel,
         relation: RelationDefinition
     ): any {
+        // No cache for reverse relations.
+        // The issue: we cannot invalidate the cache, if a new object is created (The
+        // following example is for a O2M foreign relation):
+        // There is no possibility to detect the create case: The target does not update,
+        // all related models does not update. The autoupdate does not provide the created-
+        // information. So we may check, if the relaten has changed in length every time. But
+        // this is the same as just resolving the relation every time it is requested. So no cache here.
+        if (isReverseRelationDefinition(relation)) {
+            return this.handleRelation(model, viewModel, relation) as BaseViewModel | BaseViewModel[];
+        }
+
         let result: any;
 
         const cacheProperty = '__' + property;

client/src/app/shared/components/search-value-selector/search-value-selector.component.ts

@@ -78,14 +78,18 @@ export class SearchValueSelectorComponent extends BaseFormControlComponent<Selec
         if (!value) {
             return;
         }
-        this.subscriptions.push(
+        if (Array.isArray(value)) {
-            value.pipe(auditTime(10)).subscribe(items => {
+            this.selectableItems = value;
-                this.selectableItems = items;
+        } else {
-                if (this.contentForm) {
+            this.subscriptions.push(
-                    this.disabled = !items || (!!items && !items.length);
+                value.pipe(auditTime(10)).subscribe(items => {
-                }
+                    this.selectableItems = items;
-            })
+                    if (this.contentForm) {
-        );
+                        this.disabled = !items || (!!items && !items.length);
+                    }
+                })
+            );
+        }
     }
 
     public searchValue: FormControl;

client/src/app/site/assignments/components/assignment-poll-dialog/assignment-poll-dialog.component.ts

@@ -27,11 +27,6 @@ type OptionsObject = { user_id: number; user: ViewUser }[];
     styleUrls: ['./assignment-poll-dialog.component.scss']
 })
 export class AssignmentPollDialogComponent extends BasePollDialogComponent implements OnInit {
-    /**
-     * The actual poll data to work on
-     */
-    public poll: AssignmentPoll;
-
     /**
      * The summary values that will have fields in the dialog
      */

openslides/core/migrations/0027_projector_size_1.py

@@ -6,7 +6,7 @@ from django.db import migrations, models
 class Migration(migrations.Migration):
 
     dependencies = [
-        ("core", "0025_projector_color"),
+        ("core", "0026_remove_history_restricted"),
     ]
 
     operations = [

openslides/core/migrations/0028_projector_size_2.py

@@ -37,7 +37,7 @@ def calculate_aspect_ratios(apps, schema_editor):
 class Migration(migrations.Migration):
 
     dependencies = [
-        ("core", "0026_projector_size_1"),
+        ("core", "0027_projector_size_1"),
     ]
 
     operations = [

openslides/core/migrations/0029_projector_size_3.py

@@ -6,7 +6,7 @@ from django.db import migrations
 class Migration(migrations.Migration):
 
     dependencies = [
-        ("core", "0027_projector_size_2"),
+        ("core", "0028_projector_size_2"),
     ]
 
     operations = [

openslides/core/models.py

@@ -8,6 +8,7 @@ from jsonfield import JSONField
 
 from openslides.utils.autoupdate import AutoupdateElement
 from openslides.utils.cache import element_cache, get_element_id
+from openslides.utils.locking import locking
 from openslides.utils.manager import BaseManager
 from openslides.utils.models import SET_NULL_AND_AUTOUPDATE, RESTModelMixin
 

openslides/utils/consumers.py

@@ -9,7 +9,6 @@ from mypy_extensions import TypedDict
 from ..utils.websocket import WEBSOCKET_CHANGE_ID_TOO_HIGH
 from . import logging
 from .auth import UserDoesNotExist, async_anonymous_is_enabled
-from .autoupdate import AutoupdateFormat
 from .cache import ChangeIdTooLowError, element_cache, split_element_id
 from .utils import get_worker_id
 from .websocket import ProtocollAsyncJsonWebsocketConsumer

tests/integration/users/test_viewset.py

@@ -134,7 +134,7 @@ class UserCreate(TestCase):
         self.assertEqual(response.status_code, status.HTTP_201_CREATED)
         user = User.objects.get(username="test_name_Thimoo2ho7ahreighio3")
         self.assertEqual(user.about_me, "<p>&lt;foo&gt;bar&lt;/foo&gt;</p>")
-        
+
     def test_double_username(self):
         for field in ("last_name", "username"):
             response = self.client.post(reverse("user-list"), {"username": "admin"})