merged from gramsrv upstream

deploy/migrations/20260901000022_channel_active_monoforum_invalidation.up.sql

@@ -0,0 +1,194 @@
+-- Extend the owner-scoped channel_active_memberships generation to every
+-- durable predicate used by ListActiveChannelIDsForUser. Ordinary memberships
+-- are covered by user_channel_member_index; these triggers cover monoforum
+-- subscriber message visibility, manager rights, and parent/mono enablement.
+
+CREATE OR REPLACE FUNCTION public.telesrv_bump_channel_active_membership_owner(p_user_id bigint)
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF COALESCE(p_user_id, 0) <= 0 THEN
+        RETURN;
+    END IF;
+    PERFORM public.telesrv_bump_read_model_version(
+        'channel_active_memberships', p_user_id, 'user', p_user_id
+    );
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION public.telesrv_notify_monoforum_message_visibility_read_model()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    old_owner bigint := 0;
+    new_owner bigint := 0;
+BEGIN
+    IF TG_OP <> 'INSERT'
+       AND OLD.saved_peer_type = 'user'
+       AND OLD.saved_peer_id > 0
+       AND NOT OLD.deleted
+    THEN
+        old_owner := OLD.saved_peer_id;
+    END IF;
+    IF TG_OP <> 'DELETE'
+       AND NEW.saved_peer_type = 'user'
+       AND NEW.saved_peer_id > 0
+       AND NOT NEW.deleted
+    THEN
+        new_owner := NEW.saved_peer_id;
+    END IF;
+
+    IF old_owner > 0 THEN
+        PERFORM public.telesrv_bump_channel_active_membership_owner(old_owner);
+    END IF;
+    IF new_owner > 0 AND new_owner IS DISTINCT FROM old_owner THEN
+        PERFORM public.telesrv_bump_channel_active_membership_owner(new_owner);
+    END IF;
+    RETURN NULL;
+END;
+$$;
+
+CREATE TRIGGER channel_messages_monoforum_active_membership_changed
+AFTER INSERT OR DELETE OR UPDATE OF channel_id, saved_peer_type, saved_peer_id, deleted
+ON public.channel_messages
+FOR EACH ROW EXECUTE FUNCTION public.telesrv_notify_monoforum_message_visibility_read_model();
+
+CREATE OR REPLACE FUNCTION public.telesrv_notify_monoforum_manager_visibility_read_model()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+BEGIN
+    IF OLD.role IS NOT DISTINCT FROM NEW.role
+       AND OLD.admin_rights IS NOT DISTINCT FROM NEW.admin_rights
+    THEN
+        RETURN NULL;
+    END IF;
+    IF EXISTS (
+        SELECT 1
+        FROM public.channels AS parent
+        WHERE parent.id = NEW.channel_id
+          AND parent.linked_monoforum_id <> 0
+          AND parent.broadcast_messages_allowed
+          AND NOT parent.deleted
+    ) THEN
+        PERFORM public.telesrv_bump_channel_active_membership_owner(NEW.user_id);
+    END IF;
+    RETURN NULL;
+END;
+$$;
+
+CREATE TRIGGER channel_members_monoforum_manager_visibility_changed
+AFTER UPDATE OF role, admin_rights ON public.channel_members
+FOR EACH ROW EXECUTE FUNCTION public.telesrv_notify_monoforum_manager_visibility_read_model();
+
+CREATE OR REPLACE FUNCTION public.telesrv_bump_monoforum_visibility_owners(
+    p_parent_id bigint,
+    p_monoforum_id bigint
+)
+RETURNS void
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    affected record;
+BEGIN
+    IF COALESCE(p_parent_id, 0) <= 0 OR COALESCE(p_monoforum_id, 0) <= 0 THEN
+        RETURN;
+    END IF;
+    FOR affected IN
+        SELECT DISTINCT owner_id
+        FROM (
+            SELECT member.user_id AS owner_id
+            FROM public.user_channel_member_index AS member
+            WHERE member.channel_id = p_parent_id
+              AND member.status = 'active'
+              AND NOT member.deleted
+              AND member.role IN ('creator', 'admin')
+            UNION
+            SELECT message.saved_peer_id AS owner_id
+            FROM public.channel_messages AS message
+            WHERE message.channel_id = p_monoforum_id
+              AND message.saved_peer_type = 'user'
+              AND message.saved_peer_id > 0
+              AND NOT message.deleted
+        ) AS owners
+        WHERE owner_id > 0
+        ORDER BY owner_id
+    LOOP
+        PERFORM public.telesrv_bump_channel_active_membership_owner(affected.owner_id);
+    END LOOP;
+END;
+$$;
+
+CREATE OR REPLACE FUNCTION public.telesrv_notify_monoforum_channel_visibility_read_model()
+RETURNS trigger
+LANGUAGE plpgsql
+AS $$
+DECLARE
+    old_parent_id bigint := 0;
+    old_monoforum_id bigint := 0;
+    new_parent_id bigint := 0;
+    new_monoforum_id bigint := 0;
+BEGIN
+    IF (OLD.broadcast_messages_allowed, OLD.linked_monoforum_id, OLD.deleted, OLD.monoforum)
+       IS NOT DISTINCT FROM
+       (NEW.broadcast_messages_allowed, NEW.linked_monoforum_id, NEW.deleted, NEW.monoforum)
+    THEN
+        RETURN NULL;
+    END IF;
+
+    IF OLD.linked_monoforum_id > 0 THEN
+        IF OLD.monoforum THEN
+            old_parent_id := OLD.linked_monoforum_id;
+            old_monoforum_id := OLD.id;
+        ELSE
+            old_parent_id := OLD.id;
+            old_monoforum_id := OLD.linked_monoforum_id;
+        END IF;
+    END IF;
+    IF NEW.linked_monoforum_id > 0 THEN
+        IF NEW.monoforum THEN
+            new_parent_id := NEW.linked_monoforum_id;
+            new_monoforum_id := NEW.id;
+        ELSE
+            new_parent_id := NEW.id;
+            new_monoforum_id := NEW.linked_monoforum_id;
+        END IF;
+    END IF;
+
+    IF old_parent_id > 0 THEN
+        PERFORM public.telesrv_bump_monoforum_visibility_owners(old_parent_id, old_monoforum_id);
+    END IF;
+    IF new_parent_id > 0
+       AND (new_parent_id, new_monoforum_id)
+           IS DISTINCT FROM (old_parent_id, old_monoforum_id)
+    THEN
+        PERFORM public.telesrv_bump_monoforum_visibility_owners(new_parent_id, new_monoforum_id);
+    END IF;
+    RETURN NULL;
+END;
+$$;
+
+CREATE TRIGGER channels_monoforum_active_membership_changed
+AFTER UPDATE OF broadcast_messages_allowed, linked_monoforum_id, deleted, monoforum
+ON public.channels
+FOR EACH ROW EXECUTE FUNCTION public.telesrv_notify_monoforum_channel_visibility_read_model();
+
+-- Existing monoforum owners need a fresh generation before any shared page can
+-- be populated under the expanded dependency contract.
+DO $$
+DECLARE
+    linked record;
+BEGIN
+    FOR linked IN
+        SELECT parent.id AS parent_id, parent.linked_monoforum_id AS monoforum_id
+        FROM public.channels AS parent
+        WHERE parent.linked_monoforum_id > 0
+    LOOP
+        PERFORM public.telesrv_bump_monoforum_visibility_owners(
+            linked.parent_id, linked.monoforum_id
+        );
+    END LOOP;
+END;
+$$;