Remove ChatMessage

openslides/core/access_permissions.py

@@ -23,14 +23,6 @@ class TagAccessPermissions(BaseAccessPermissions):
     """
 
 
-class ChatMessageAccessPermissions(BaseAccessPermissions):
-    """
-    Access permissions container for ChatMessage and ChatMessageViewSet.
-    """
-
-    base_permission = "core.can_use_chat"
-
-
 class ProjectorMessageAccessPermissions(BaseAccessPermissions):
     """
     Access permissions for ProjectorMessage.

openslides/core/apps.py

@@ -2,7 +2,7 @@ import os
 import sys
 from collections import OrderedDict
 from operator import attrgetter
-from typing import Any, Dict, List, Set
+from typing import Any, Dict, List
 
 from django.apps import AppConfig
 from django.conf import settings
@@ -28,7 +28,6 @@ class CoreAppConfig(AppConfig):
             post_permission_creation,
         )
         from .views import (
-            ChatMessageViewSet,
             ConfigViewSet,
             CountdownViewSet,
             HistoryViewSet,
@@ -45,7 +44,6 @@ class CoreAppConfig(AppConfig):
             ListenToProjectors,
             PingPong,
         )
-        from ..utils.access_permissions import required_user
         from ..utils.rest_api import router
         from ..utils.websocket import register_client_message
 
@@ -81,9 +79,6 @@ class CoreAppConfig(AppConfig):
             self.get_model("Projectiondefault").get_collection_string(),
             ProjectionDefaultViewSet,
         )
-        router.register(
-            self.get_model("ChatMessage").get_collection_string(), ChatMessageViewSet
-        )
         router.register(self.get_model("Tag").get_collection_string(), TagViewSet)
         router.register(
             self.get_model("ConfigStore").get_collection_string(),
@@ -112,11 +107,6 @@ class CoreAppConfig(AppConfig):
         register_client_message(ListenToProjectors())
         register_client_message(PingPong())
 
-        # register required_users
-        required_user.add_collection_string(
-            self.get_model("ChatMessage").get_collection_string(), required_users
-        )
-
     def get_config_variables(self):
         from .config_variables import get_config_variables
 
@@ -130,7 +120,6 @@ class CoreAppConfig(AppConfig):
         for model_name in (
             "Projector",
             "ProjectionDefault",
-            "ChatMessage",
             "Tag",
             "ProjectorMessage",
             "Countdown",
@@ -205,13 +194,6 @@ def call_save_default_values(**kwargs):
     config.save_default_values()
 
 
-def required_users(element: Dict[str, Any]) -> Set[int]:
-    """
-    Returns all user ids that are displayed as chatters.
-    """
-    return set((element["user_id"],))
-
-
 def startup():
     """
     Runs commands that are needed at startup.

openslides/core/migrations/0022_remove_chatmessage.py

@@ -0,0 +1,21 @@
+# Generated by Django 2.1.7 on 2019-03-29 06:45
+
+from django.contrib.auth.models import Permission
+from django.contrib.contenttypes.models import ContentType
+from django.db import migrations
+
+
+def remove_chatmessage_permissions(apps, schema_editor):
+    content_type = ContentType.objects.filter(model="chatmessage", app_label="core")
+    Permission.objects.filter(content_type__in=content_type).delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [("core", "0021_auto_20190415_0942")]
+
+    operations = [
+        migrations.RunPython(remove_chatmessage_permissions),
+        migrations.RemoveField(model_name="chatmessage", name="user"),
+        migrations.DeleteModel(name="ChatMessage"),
+    ]

openslides/core/models.py

@@ -6,13 +6,8 @@ from jsonfield import JSONField
 
 from ..utils.autoupdate import Element
 from ..utils.cache import element_cache, get_element_id
-from ..utils.models import (
+from ..utils.models import SET_NULL_AND_AUTOUPDATE, RESTModelMixin
-    CASCADE_AND_AUTOUODATE,
-    SET_NULL_AND_AUTOUPDATE,
-    RESTModelMixin,
-)
 from .access_permissions import (
-    ChatMessageAccessPermissions,
     ConfigAccessPermissions,
     CountdownAccessPermissions,
     HistoryAccessPermissions,
@@ -185,33 +180,6 @@ class ConfigStore(RESTModelMixin, models.Model):
         return "core/config"
 
 
-class ChatMessage(RESTModelMixin, models.Model):
-    """
-    Model for chat messages.
-
-    At the moment we only have one global chat room for managers.
-    """
-
-    access_permissions = ChatMessageAccessPermissions()
-    can_see_permission = "core.can_use_chat"
-
-    message = models.TextField()
-
-    timestamp = models.DateTimeField(auto_now_add=True)
-
-    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=CASCADE_AND_AUTOUODATE)
-
-    class Meta:
-        default_permissions = ()
-        permissions = (
-            ("can_use_chat", "Can use the chat"),
-            ("can_manage_chat", "Can manage the chat"),
-        )
-
-    def __str__(self):
-        return f"Message {self.timestamp}"
-
-
 class ProjectorMessage(RESTModelMixin, models.Model):
     """
     Model for ProjectorMessages.

openslides/core/serializers.py

@@ -10,7 +10,6 @@ from ..utils.rest_api import (
 )
 from ..utils.validate import validate_html
 from .models import (
-    ChatMessage,
     ConfigStore,
     Countdown,
     History,
@@ -141,17 +140,6 @@ class ConfigSerializer(ModelSerializer):
         fields = ("id", "key", "value")
 
 
-class ChatMessageSerializer(ModelSerializer):
-    """
-    Serializer for core.models.ChatMessage objects.
-    """
-
-    class Meta:
-        model = ChatMessage
-        fields = ("id", "message", "timestamp", "user")
-        read_only_fields = ("user",)
-
-
 class ProjectorMessageSerializer(ModelSerializer):
     """
     Serializer for core.models.ProjectorMessage objects.

openslides/core/signals.py

@@ -42,8 +42,6 @@ def get_permission_change_data(sender, permissions, **kwargs):
             elif permission.codename == "can_manage_projector":
                 yield core_app.get_model("ProjectorMessage")
                 yield core_app.get_model("Countdown")
-            elif permission.codename == "can_use_chat":
-                yield core_app.get_model("ChatMessage")
 
 
 def autoupdate_for_many_to_many_relations(sender, instance, **kwargs):

openslides/core/views.py

@@ -35,7 +35,6 @@ from ..utils.rest_api import (
     list_route,
 )
 from .access_permissions import (
-    ChatMessageAccessPermissions,
     ConfigAccessPermissions,
     CountdownAccessPermissions,
     HistoryAccessPermissions,
@@ -47,7 +46,6 @@ from .access_permissions import (
 from .config import config
 from .exceptions import ConfigError, ConfigNotFound
 from .models import (
-    ChatMessage,
     ConfigStore,
     Countdown,
     History,
@@ -396,64 +394,6 @@ class ConfigViewSet(ModelViewSet):
         return Response({"key": key, "value": value})
 
 
-class ChatMessageViewSet(ModelViewSet):
-    """
-    API endpoint for chat messages.
-
-    There are the following views: metadata, list, retrieve and create.
-    The views partial_update, update and destroy are disabled.
-    """
-
-    access_permissions = ChatMessageAccessPermissions()
-    queryset = ChatMessage.objects.all()
-
-    def check_view_permissions(self):
-        """
-        Returns True if the user has required permissions.
-        """
-        if self.action in ("list", "retrieve"):
-            result = self.get_access_permissions().check_permissions(self.request.user)
-        elif self.action in ("metadata", "create"):
-            # We do not want anonymous users to use the chat even the anonymous
-            # group has the permission core.can_use_chat.
-            result = self.request.user.is_authenticated and has_perm(
-                self.request.user, "core.can_use_chat"
-            )
-        elif self.action == "clear":
-            result = has_perm(self.request.user, "core.can_use_chat") and has_perm(
-                self.request.user, "core.can_manage_chat"
-            )
-        else:
-            result = False
-        return result
-
-    def perform_create(self, serializer):
-        """
-        Customized method to inject the request.user into serializer's save
-        method so that the request.user can be saved into the model field.
-        """
-        serializer.save(user=self.request.user)
-        # Send chatter via autoupdate because users without permission
-        # to see users may not have it but can get it now.
-        inform_changed_data([self.request.user])
-
-    @list_route(methods=["post"])
-    def clear(self, request):
-        """
-        Deletes all chat messages.
-        """
-        # Collect all chat messages with their collection_string and id
-        chatmessages = ChatMessage.objects.all()
-        args = []
-        for chatmessage in chatmessages:
-            args.append((chatmessage.get_collection_string(), chatmessage.pk))
-        chatmessages.delete()
-        # Trigger autoupdate and setup response.
-        if args:
-            inform_deleted_data(args)
-        return Response({"detail": "All chat messages deleted successfully."})
-
-
 class ProjectorMessageViewSet(ModelViewSet):
     """
     API endpoint for messages.

openslides/users/signals.py

@@ -46,11 +46,9 @@ def create_builtin_groups_and_admin(**kwargs):
         "core.can_manage_logos_and_fonts",
         "core.can_manage_projector",
         "core.can_manage_tags",
-        "core.can_manage_chat",
         "core.can_see_frontpage",
         "core.can_see_history",
         "core.can_see_projector",
-        "core.can_use_chat",
         "mediafiles.can_manage",
         "mediafiles.can_see",
         "mediafiles.can_see_hidden",
@@ -141,7 +139,6 @@ def create_builtin_groups_and_admin(**kwargs):
         permission_dict["core.can_see_projector"],
         permission_dict["core.can_manage_projector"],
         permission_dict["core.can_manage_tags"],
-        permission_dict["core.can_use_chat"],
         permission_dict["mediafiles.can_see"],
         permission_dict["mediafiles.can_manage"],
         permission_dict["mediafiles.can_upload"],

tests/integration/core/test_viewset.py

@@ -4,7 +4,7 @@ from rest_framework import status
 from rest_framework.test import APIClient
 
 from openslides.core.config import config
-from openslides.core.models import ChatMessage, Projector, Tag
+from openslides.core.models import Projector, Tag
 from openslides.users.models import User
 from openslides.utils.autoupdate import inform_changed_data
 from openslides.utils.test import TestCase
@@ -26,19 +26,6 @@ def test_projector_db_queries():
     assert count_queries(Projector.get_elements) == 2
 
 
-@pytest.mark.django_db(transaction=False)
-def test_chat_message_db_queries():
-    """
-    Tests that only the following db queries are done:
-    * 1 requests to get the list of all chatmessages.
-    """
-    user = User.objects.get(username="admin")
-    for index in range(10):
-        ChatMessage.objects.create(user=user)
-
-    assert count_queries(ChatMessage.get_elements) == 1
-
-
 @pytest.mark.django_db(transaction=False)
 def test_tag_db_queries():
     """
@@ -200,21 +187,3 @@ class Projection(TestCase):
         self.assertEqual(self.projector.elements, [])
         self.assertEqual(self.projector.elements_preview, elements)
         self.assertEqual(self.projector.elements_history, [])
-
-
-class ChatMessageViewSet(TestCase):
-    """
-    Tests requests to deal with chat messages.
-    """
-
-    def setUp(self):
-        admin = User.objects.get(username="admin")
-        self.client.force_login(admin)
-        ChatMessage.objects.create(
-            message="test_message_peechiel8IeZoohaem9e", user=admin
-        )
-
-    def test_clear_chat(self):
-        response = self.client.post(reverse("chatmessage-clear"))
-        self.assertEqual(response.status_code, status.HTTP_200_OK)
-        self.assertEqual(ChatMessage.objects.all().count(), 0)

tests/integration/users/test_viewset.py

@@ -514,10 +514,8 @@ class GroupUpdate(TestCase):
             "core.can_manage_config",
             "core.can_manage_projector",
             "core.can_manage_tags",
-            "core.can_manage_chat",
             "core.can_see_frontpage",
             "core.can_see_projector",
-            "core.can_use_chat",
             "mediafiles.can_manage",
             "mediafiles.can_see",
             "mediafiles.can_see_hidden",