settings: Remove `move_messages_between_streams_policy` setting.

Removed `move_messages_between_streams_policy` property, as the permission
to move messages between channels is now controlled by
`can_move_messages_between_channels_group` setting.

api_docs/changelog.md

@@ -27,6 +27,10 @@ format used by the Zulip server that they are interacting with.
   Added `can_move_messages_between_channels_group` realm setting which is a
   [group-setting value](/api/group-setting-values) describing the set of users
   with permission to move messages from one channel to another in the organization.
+* `PATCH /realm`, [`GET /events`](/api/get-events): Removed
+  `move_messages_between_streams_policy` property, as the permission to move
+  messages between channels in the organization is now controlled by
+  `can_move_messages_between_channels_group` setting.
 
 **Feature level 309**
 

zerver/migrations/0614_remove_realm_move_messages_between_streams_policy.py

@@ -0,0 +1,16 @@
+# Generated by Django 5.0.9 on 2024-10-15 09:51
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("zerver", "0613_alter_realm_can_move_messages_between_channels_group"),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name="realm",
+            name="move_messages_between_streams_policy",
+        ),
+    ]

zerver/models/realms.py

@@ -270,8 +270,6 @@ class Realm(models.Model):  # type: ignore[django-manager-missing] # django-stub
 
     EDIT_TOPIC_POLICY_TYPES = [field.value for field in EditTopicPolicyEnum]
 
-    MOVE_MESSAGES_BETWEEN_STREAMS_POLICY_TYPES = INVITE_TO_REALM_POLICY_TYPES
-
     DEFAULT_MOVE_MESSAGE_LIMIT_SECONDS = 7 * SECONDS_PER_DAY
 
     move_messages_within_stream_limit_seconds = models.PositiveIntegerField(
@@ -354,11 +352,6 @@ class Realm(models.Model):  # type: ignore[django-manager-missing] # django-stub
         default=CommonPolicyEnum.MEMBERS_ONLY
     )
 
-    # Who in the organization is allowed to move messages between streams.
-    move_messages_between_streams_policy = models.PositiveSmallIntegerField(
-        default=POLICY_MEMBERS_ONLY
-    )
-
     # UserGroup which is allowed to move messages between streams.
     can_move_messages_between_channels_group = models.ForeignKey(
         "UserGroup", on_delete=models.RESTRICT, related_name="+"
@@ -676,7 +669,6 @@ class Realm(models.Model):  # type: ignore[django-manager-missing] # django-stub
         move_messages_between_streams_limit_seconds=(int, type(None)),
         move_messages_within_stream_limit_seconds=(int, type(None)),
         message_retention_days=(int, type(None)),
-        move_messages_between_streams_policy=int,
         name=str,
         name_changes_disabled=bool,
         push_notifications_enabled=bool,

zerver/models/users.py

@@ -830,7 +830,6 @@ class UserProfile(AbstractBaseUser, PermissionsMixin, UserBaseSettings):
             "edit_topic_policy",
             "invite_to_stream_policy",
             "invite_to_realm_policy",
-            "move_messages_between_streams_policy",
         ]:
             raise AssertionError("Invalid policy")
 

zerver/openapi/zulip.yaml

@@ -4795,27 +4795,6 @@ paths:
                                         **Changes**: New in Zulip 7.0 (feature level 162). Previously, there was
                                         no time limit for moving messages between channels for users with permission
                                         to do so.
-                                    move_messages_between_streams_policy:
-                                      type: integer
-                                      description: |
-                                        The [policy][permission-level] for which users can move messages from
-                                        one channel to another.
-
-                                        - 1 = Members only
-                                        - 2 = Administrators only
-                                        - 3 = [Full members][calc-full-member] only
-                                        - 4 = Moderators only
-                                        - 6 = Nobody
-
-                                        See [`PATCH /messages/{message_id}`](/api/update-message) for details and
-                                        history of how message editing permissions work.
-
-                                        **Changes**: Nobody added as an option in Zulip 7.0 (feature level 159).
-
-                                        New in Zulip 4.0 (feature level 56).
-
-                                        [permission-level]: /api/roles-and-permissions#permission-levels
-                                        [calc-full-member]: /api/roles-and-permissions#determining-if-a-user-is-a-full-member
                                     name:
                                       type: string
                                       description: |
@@ -16879,29 +16858,6 @@ paths:
 
                           New in Zulip 5.0 (feature level 75).
 
-                          [permission-level]: /api/roles-and-permissions#permission-levels
-                          [calc-full-member]: /api/roles-and-permissions#determining-if-a-user-is-a-full-member
-                      realm_move_messages_between_streams_policy:
-                        type: integer
-                        description: |
-                          Present if `realm` is present in `fetch_event_types`.
-
-                          The [policy][permission-level] for which users can move messages
-                          from one channel to another.
-
-                          - 1 = Members only
-                          - 2 = Administrators only
-                          - 3 = [Full members][calc-full-member] only
-                          - 4 = Moderators only
-                          - 6 = Nobody
-
-                          See [`PATCH /messages/{message_id}`](/api/update-message) for details
-                          and history of how message editing permissions work.
-
-                          **Changes**: Nobody added as an option in Zulip 7.0 (feature level 159).
-
-                          New in Zulip 4.0 (feature level 56).
-
                           [permission-level]: /api/roles-and-permissions#permission-levels
                           [calc-full-member]: /api/roles-and-permissions#determining-if-a-user-is-a-full-member
                       realm_message_content_edit_limit_seconds:

zerver/tests/test_events.py

@@ -3714,7 +3714,6 @@ class RealmPropertyActionTest(BaseAction):
             default_code_block_language=["python", "javascript"],
             message_content_delete_limit_seconds=[1000, 1100, 1200],
             invite_to_realm_policy=Realm.INVITE_TO_REALM_POLICY_TYPES,
-            move_messages_between_streams_policy=Realm.MOVE_MESSAGES_BETWEEN_STREAMS_POLICY_TYPES,
             edit_topic_policy=Realm.EDIT_TOPIC_POLICY_TYPES,
             message_content_edit_limit_seconds=[1000, 1100, 1200, None],
             move_messages_within_stream_limit_seconds=[1000, 1100, 1200],

zerver/tests/test_home.py

@@ -185,7 +185,6 @@ class HomeTest(ZulipTestCase):
         "realm_message_content_edit_limit_seconds",
         "realm_message_retention_days",
         "realm_move_messages_between_streams_limit_seconds",
-        "realm_move_messages_between_streams_policy",
         "realm_move_messages_within_stream_limit_seconds",
         "realm_name",
         "realm_name_changes_disabled",

zerver/tests/test_realm.py

@@ -850,7 +850,6 @@ class RealmTest(ZulipTestCase):
             message_content_delete_limit_seconds=-10,
             wildcard_mention_policy=10,
             invite_to_realm_policy=10,
-            move_messages_between_streams_policy=10,
             edit_topic_policy=10,
             message_content_edit_limit_seconds=0,
             move_messages_within_stream_limit_seconds=0,
@@ -1699,7 +1698,6 @@ class RealmAPITest(ZulipTestCase):
             ],
             message_content_delete_limit_seconds=[1000, 1100, 1200],
             invite_to_realm_policy=Realm.INVITE_TO_REALM_POLICY_TYPES,
-            move_messages_between_streams_policy=Realm.MOVE_MESSAGES_BETWEEN_STREAMS_POLICY_TYPES,
             edit_topic_policy=Realm.EDIT_TOPIC_POLICY_TYPES,
             message_content_edit_limit_seconds=[1000, 1100, 1200],
             move_messages_within_stream_limit_seconds=[1000, 1100, 1200],

zerver/views/realm.py

@@ -54,7 +54,6 @@ from zerver.models.realms import (
     DigestWeekdayEnum,
     EditTopicPolicyEnum,
     InviteToRealmPolicyEnum,
-    MoveMessagesBetweenStreamsPolicyEnum,
     OrgTypeEnum,
     WildcardMentionPolicyEnum,
 )
@@ -149,7 +148,6 @@ def update_realm(
     direct_message_initiator_group: Json[GroupSettingChangeRequest] | None = None,
     direct_message_permission_group: Json[GroupSettingChangeRequest] | None = None,
     invite_to_stream_policy: Json[CommonPolicyEnum] | None = None,
-    move_messages_between_streams_policy: Json[MoveMessagesBetweenStreamsPolicyEnum] | None = None,
     wildcard_mention_policy: Json[WildcardMentionPolicyEnum] | None = None,
     video_chat_provider: Json[int] | None = None,
     jitsi_server_url_raw: Annotated[