public function addMembers() { if ($this->members) { foreach (explode(',', $this->members) as $user_id) { $cgu = new ChatGroupUser(); $cgu->group_id = $this->id; $cgu->user_id = $user_id; $cgu->status = ChatGroupUser::STATUS_ACTIVE; $cgu->is_admin = 0; $cgu->save(); } } }