prefix . $this->table_name_slug; $t = "INSERT INTO $table_name (attach_id) VALUES(%d)"; $query = $wpdb->prepare( $t, $attach_id ); $result = $wpdb->query( $query ); if( $result === false ){ die( 'Error DB!' ); } return true; } public function aitas_item_delete( $detach_id ) { global $wpdb; $table_name = $wpdb->prefix . $this->table_name_slug; $t = "DELETE FROM $table_name WHERE attach_id='%d'"; $query = $wpdb->prepare($t, $detach_id); $result = $wpdb->query($query); if( $result === false ){ die( 'Error DB!' ); } return true; } }