Changeset 0.21.1.1 (#87)

server/store/postgres/channel.go

@@ -266,3 +266,24 @@ func (s *ChannelStore) UserOwns(ctx context.Context, channelID, userID string) (
 		channelID, userID).Scan(&exists)
 	return exists, err
 }
+
+// ResolveWorkspaceID returns the effective workspace for a channel.
+// Resolution: channel.workspace_id > project.workspace_id.
+// Returns empty string if no workspace is bound.
+func (s *ChannelStore) ResolveWorkspaceID(ctx context.Context, channelID string) (string, error) {
+	var wsID sql.NullString
+	err := DB.QueryRowContext(ctx, `
+		SELECT COALESCE(c.workspace_id, p.workspace_id)
+		FROM channels c
+		LEFT JOIN project_channels pc ON pc.channel_id = c.id
+		LEFT JOIN projects p ON p.id = pc.project_id
+		WHERE c.id = $1
+		LIMIT 1`, channelID).Scan(&wsID)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return "", nil
+		}
+		return "", err
+	}
+	return NullableString(wsID), nil
+}