GeneralizedSql.php
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GeneralizedSql.php
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	<?php
	/**
	* @license GPL-2.0-or-later
	* @file
	*/
	namespace Wikimedia\Rdbms;

	/**
	* Lazy-loaded wrapper for simplification and scrubbing of SQL queries for profiling
	*
	* @since 1.34
	* @ingroup Profiler
	* @ingroup Database
	*/
	class GeneralizedSql {
	/** @var string */
	private $rawSql;
	/** @var string */
	private $prefix;

	/** @var string\|null */
	private $genericSql;

	/**
	* @param string $rawSql
	* @param string $prefix
	*/
	public function __construct( $rawSql, $prefix ) {
	$this->rawSql = $rawSql;
	$this->prefix = $prefix;
	}

	/**
	* @return string
	*/
	public function stringify() {
	if ( $this->genericSql !== null ) {
	return $this->genericSql;
	}

	$this->genericSql = $this->prefix .
	substr( QueryBuilderFromRawSql::generalizeSQL( $this->rawSql ), 0, 255 );

	return $this->genericSql;
	}

	/**
	* @return string
	*/
	public function getRawSql() {
	return $this->rawSql;
	}

	/**
	* @param Query $query
	* @param string $prefix
	* @return self
	*/
	public static function newFromQuery( Query $query, $prefix ) {
	$generalizedSql = new self( $query->getSQL(), $prefix );

	$cleanedSql = $query->getCleanedSql();
	if ( $cleanedSql != '' ) {
	// Generalized SQL already provided; no need to use regexes
	$generalizedSql->genericSql = $prefix . $cleanedSql;
	}

	return $generalizedSql;
	}
	}