GeneralizedSql.php

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<?php
namespace Wikimedia\Rdbms;
 
class GeneralizedSql {
    private $rawSql;
    private $prefix;
 
    private $genericSql;
 
    public function __construct( $rawSql, $prefix ) {
        $this->rawSql = $rawSql;
        $this->prefix = $prefix;
    }
 
    public function stringify() {
        if ( $this->genericSql !== null ) {
            return $this->genericSql;
        }
 
        $this->genericSql = $this->prefix .
            substr( QueryBuilderFromRawSql::generalizeSQL( $this->rawSql ), 0, 255 );
 
        return $this->genericSql;
    }
 
    public function getRawSql() {
        return $this->rawSql;
    }
 
    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;
    }
}