snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

zilencer/management/commands/mark_all_messages_unread.py

@@ -0,0 +1,22 @@
+from typing import Any
+
+import bmemcached
+from django.conf import settings
+from django.core.cache import cache
+from django.db.models import F
+from typing_extensions import override
+
+from zerver.lib.management import ZulipBaseCommand
+from zerver.models import UserMessage
+
+
+class Command(ZulipBaseCommand):
+    help = """Script to mark all messages as unread."""
+
+    @override
+    def handle(self, *args: Any, **options: Any) -> None:
+        assert settings.DEVELOPMENT
+        UserMessage.objects.all().update(flags=F("flags").bitand(~UserMessage.flags.read))
+        _cache = cache._cache  # type: ignore[attr-defined] # not in stubs
+        assert isinstance(_cache, bmemcached.Client)
+        _cache.flush_all()