<?php

namespace Chill\MainBundle\Doctrine\DQL;

use Doctrine\ORM\Query\Lexer;
use Doctrine\ORM\Query\Parser;
use Doctrine\ORM\Query\SqlWalker;

class StrictWordSimilarityOPS extends \Doctrine\ORM\Query\AST\Functions\FunctionNode
{
    private $firstPart;

    private $secondPart;

    public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
    {
        return $this->firstPart->dispatch($sqlWalker).
            ' <<% ' . $this->secondPart->dispatch($sqlWalker);
    }

    public function parse(\Doctrine\ORM\Query\Parser $parser)
    {
        $parser->match(Lexer::T_IDENTIFIER);
        $parser->match(Lexer::T_OPEN_PARENTHESIS);

        $this->firstPart = $parser->StringPrimary();

        $parser->match(Lexer::T_COMMA);

        $this->secondPart = $parser->StringPrimary();

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