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doctrine2/lib/Doctrine/ORM/Query/AST/Functions/SubstringFunction.php

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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Query\AST\Functions;
use Doctrine\ORM\Query\Lexer;
/**
* "SUBSTRING" "(" StringPrimary "," SimpleArithmeticExpression "," SimpleArithmeticExpression ")"
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.doctrine-project.org
* @since 2.0
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class SubstringFunction extends FunctionNode
{
public $stringPrimary;
public $firstSimpleArithmeticExpression;
public $secondSimpleArithmeticExpression = null;
/**
* @override
*/
public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
{
$optionalSecondSimpleArithmeticExpression = null;
if ($this->secondSimpleArithmeticExpression !== null) {
$optionalSecondSimpleArithmeticExpression = $sqlWalker->walkSimpleArithmeticExpression($this->secondSimpleArithmeticExpression);
}
return $sqlWalker->getConnection()->getDatabasePlatform()->getSubstringExpression(
$sqlWalker->walkStringPrimary($this->stringPrimary),
$sqlWalker->walkSimpleArithmeticExpression($this->firstSimpleArithmeticExpression),
$optionalSecondSimpleArithmeticExpression
);
}
/**
* @override
*/
public function parse(\Doctrine\ORM\Query\Parser $parser)
{
$parser->match(Lexer::T_IDENTIFIER);
$parser->match(Lexer::T_OPEN_PARENTHESIS);
$this->stringPrimary = $parser->StringPrimary();
$parser->match(Lexer::T_COMMA);
$this->firstSimpleArithmeticExpression = $parser->SimpleArithmeticExpression();
$lexer = $parser->getLexer();
if ($lexer->isNextToken(Lexer::T_COMMA)) {
$parser->match(Lexer::T_COMMA);
$this->secondSimpleArithmeticExpression = $parser->SimpleArithmeticExpression();
}
$parser->match(Lexer::T_CLOSE_PARENTHESIS);
}
}