Phuria\QueryBuilder\QueryCompiler\QueryCompiler

Complexity

Total Complexity

6

Size/Duplication

Total Lines	50
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

81.25%

Importance

Changes	1
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	7	1
A	addCompiler()	0	6	1
A	canHandleQuery()	0	4	1
A	compile()	0	10	3

<?php

/**
 * This file is part of Phuria SQL Builder package.
 *
 * Copyright (c) 2016 Beniamin Jonatan Šimko
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Phuria\QueryBuilder\QueryCompiler;

use Phuria\QueryBuilder\QueryBuilder;

/**
 * @author Beniamin Jonatan Šimko <spam@simko.it>
 */
class QueryCompiler implements QueryCompilerInterface
{
    /**
     * @var \SplPriorityQueue|QueryCompilerInterface[] $compilers
     */
    private $compilers = [];

    public function __construct()
    {
        $this->compilers = new \SplPriorityQueue();

        $this->addCompiler(new SelectQueryCompiler());
        $this->addCompiler(new UpdateQueryCompiler());
    }

    /**
     * @param QueryCompilerInterface $compiler
     * @param int                    $priority
     *
     * @return $this
     */
    public function addCompiler(QueryCompilerInterface $compiler, $priority = 0)
    {
        $this->compilers->insert($compiler, $priority);

        return $this;
    }

    /**
     * @inheritdoc
     */
    public function canHandleQuery(QueryBuilder $qb)
    {
        return true;
    }

    /**
     * @inheritdoc
     */
    public function compile(QueryBuilder $qb)
    {
        foreach ($this->compilers as $compiler) {
            if ($compiler->canHandleQuery($qb)) {
                return $compiler->compile($qb);
            }
        }

        return null;
    }
}