mn_name; } $name .= \sprintf( '_%s', $column_str ); return $name; } /** * Returns the type of a query. * * @param string $query The query to run. * * @return int The query type. */ private function determine_query_type( $query ) { $query = \strtolower( \trim( $query ) ); $match = []; \preg_match( '/^(\\w)*/i', $query, $match ); $type = $match[0]; switch ( $type ) { case 'select': return Constants::SQL_SELECT; case 'update': return Constants::SQL_UPDATE; case 'delete': return Constants::SQL_DELETE; case 'insert': return Constants::SQL_INSERT; case 'alter': return Constants::SQL_ALTER; case 'drop': return Constants::SQL_DROP; case 'create': return Constants::SQL_CREATE; case 'show': return Constants::SQL_SHOW; case 'rename': return Constants::SQL_RENAME; case 'set': return Constants::SQL_SET; default: return Constants::SQL_UNKNOWN_QUERY_TYPE; } } /** * Detect whether or not the string represents a function call and if so * do not wrap it in single-quotes, otherwise do wrap in single quotes. * * @param string $text The string. * * @return bool Whether or not it's a SQL function call. */ private function is_sql_method_call( $text ) { $text = \trim( $text ); if ( \substr( $text, -2, 2 ) === '()' ) { return true; } return false; } /** * Checks if a transaction is active. * * @return bool */ private function in_transaction() { return $this->in_transaction; } /** * Starts a transaction. * * @return void * * @throws Exception If a transaction was already started. */ private function begin_transaction() { global $wpdb; if ( $this->in_transaction === true ) { throw new Exception( 'Transaction already started' ); } $wpdb->query( 'START TRANSACTION' ); $this->in_transaction = true; } /** * Commits a transaction. * * @return void * * @throws Exception If no transaction was strated. */ private function commit() { global $wpdb; if ( $this->in_transaction === false ) { throw new Exception( 'Transaction not started' ); } $wpdb->query( 'COMMIT' ); $this->in_transaction = false; } /** * Rollbacks a transaction. * * @return void * * @throws Exception If no transaction was started. */ private function rollback() { global $wpdb; if ( $this->in_transaction === false ) { throw new Exception( 'Transaction not started' ); } $wpdb->query( 'ROLLBACK' ); $this->in_transaction = false; } } ووردبريس › خطأ

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