/** * Drop all tasks that are in this list * * @access public * @param void * @return boolean */ function deleteHandins() { $q = DB::escapeField('rel_object_id') . ' = ' . DB::escape($this->getId()) . ' AND ' . DB::escapeField('rel_object_manager') . ' = ' . DB::escape(get_class($this->manager())); return ObjectHandins::delete($q); }