Skip to content
Permalink
master
Go to file
 
 
Cannot retrieve contributors at this time
83 lines (69 sloc) 2.39 KB
<?php
namespace DoctrineExtensions\Query\Mysql;
use Doctrine\ORM\Query\AST\Functions\FunctionNode;
use Doctrine\ORM\Query\AST\Literal;
use Doctrine\ORM\Query\AST\Node;
use Doctrine\ORM\Query\Lexer;
use Doctrine\ORM\Query\Parser;
use Doctrine\ORM\Query\QueryException;
use Doctrine\ORM\Query\SqlWalker;
/**
* "CAST" "(" "$fieldIdentifierExpression" "AS" "$castingTypeExpression" ")"
*
* @example
* SELECT CAST(foo.bar AS SIGNED) FROM dual;
*
* @link https://www.doctrine-project.org/projects/doctrine-orm/en/2.6/cookbook/dql-user-defined-functions.html#conclusion
* @link https://dev.mysql.com/doc/refman/5.6/en/cast-functions.html#function_cast
*/
class Cast extends FunctionNode
{
/** @var Node */
protected $fieldIdentifierExpression;
/** @var string */
protected $castingTypeExpression;
/**
* @param Parser $parser
*
* @throws QueryException
*/
public function parse(Parser $parser)
{
$parser->match(Lexer::T_IDENTIFIER);
$parser->match(Lexer::T_OPEN_PARENTHESIS);
$this->fieldIdentifierExpression = $parser->SimpleArithmeticExpression();
$parser->match(Lexer::T_AS);
$parser->match(Lexer::T_IDENTIFIER);
$type = $parser->getLexer()->token['value'];
if ($parser->getLexer()->isNextToken(Lexer::T_OPEN_PARENTHESIS)) {
$parser->match(Lexer::T_OPEN_PARENTHESIS);
/** @var Literal $parameter */
$parameter = $parser->Literal();
$parameters = [$parameter->value];
if ($parser->getLexer()->isNextToken(Lexer::T_COMMA)) {
while ($parser->getLexer()->isNextToken(Lexer::T_COMMA)) {
$parser->match(Lexer::T_COMMA);
$parameter = $parser->Literal();
$parameters[] = $parameter->value;
}
}
$parser->match(Lexer::T_CLOSE_PARENTHESIS);
$type .= '('.implode(', ', $parameters).')';
}
$this->castingTypeExpression = $type;
$parser->match(Lexer::T_CLOSE_PARENTHESIS);
}
/**
* @param SqlWalker $sqlWalker
*
* @return string
*/
public function getSql(SqlWalker $sqlWalker)
{
return sprintf(
'CAST(%s AS %s)',
$sqlWalker->walkSimpleArithmeticExpression($this->fieldIdentifierExpression),
$this->castingTypeExpression
);
}
}
You can’t perform that action at this time.