wpdb = $wpdb; } public function run() { $result = false; $sql_get_st_table_name = "SHOW TABLES LIKE '{$this->wpdb->prefix}icl_strings'"; $sql_get_location_column_from_st = "SHOW COLUMNS FROM {$this->wpdb->prefix}icl_strings LIKE 'location'"; $st_table_exist = $this->wpdb->get_var( $sql_get_st_table_name ) === "{$this->wpdb->prefix}icl_strings"; $location_column_exists = $st_table_exist ? $this->wpdb->get_var( $sql_get_location_column_from_st ) === 'location' : false; if ( $st_table_exist && ! $location_column_exists ) { $sql = "ALTER TABLE {$this->wpdb->prefix}icl_strings ADD COLUMN `location` BIGINT unsigned NULL"; $result = $this->wpdb->query( $sql ); } return false !== $result; } public function run_ajax() { } public function run_frontend() { } /** * @return string */ public static function get_command_id() { return __CLASS__; } }