Doctrine 2 DQL MySQL equivalent to ROUND()?

Question

I know from the documentation at: http://docs.doctrine-project.org/en/2.1/reference/dql-doctrine-query-language.html#dql-functions that there is no ROUND function but is the

Answer 1

A bit cleaner approach would be using slightly modified @Ocramius code.

Put this piece of code in: src/YourNamespace/YourMainBundle/DoctrineFunctions/ directory as the Round.php filename:

getLexer();

        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);

        $this->arithmeticExpression = $parser->SimpleArithmeticExpression();

        $parser->match(Lexer::T_CLOSE_PARENTHESIS);
    }

    public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
    {
        return 'ROUND(' . $sqlWalker->walkSimpleArithmeticExpression($this->arithmeticExpression) . ')';
    }
}

Then put this in your app/config/config.yml:

doctrine:
    dql:
        numeric_functions:
            round: YourApp\YourMainBundle\DoctrineFunctions\Round

That would allow you to use the ROUND() function directly in your DQL SELECT queries; no matter if done with QueryBuilder or directly via createQuery()