<?php

namespace Doctrine\Tests\ORM\Tools\Pagination;

use Doctrine\ORM\Query;
use Doctrine\ORM\Tools\Pagination\CountWalker;

class CountSqlWalkerTest extends PaginationTestCase
{
    public function testCountQuery()
    {
        $query = $this->entityManager->createQuery(
                        'SELECT p, c, a FROM Doctrine\Tests\ORM\Tools\Pagination\BlogPost p JOIN p.category c JOIN p.author a');
        $query->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, 'Doctrine\ORM\Tools\Pagination\CountSqlWalker');
        $query->setHint(CountWalker::HINT_DISTINCT, true);
        $query->setFirstResult(null)->setMaxResults(null);

        $this->assertEquals(
                "SELECT COUNT(*) AS _dctrn_count FROM (SELECT DISTINCT id0 FROM (SELECT b0_.id AS id0, c1_.id AS id1, a2_.id AS id2, a2_.name AS name3, b0_.author_id AS author_id4, b0_.category_id AS category_id5 FROM BlogPost b0_ INNER JOIN Category c1_ ON b0_.category_id = c1_.id INNER JOIN Author a2_ ON b0_.author_id = a2_.id) AS _dctrn_result) AS _dctrn_table", $query->getSql()
        );
    }

    public function testCountQuery_MixedResultsWithName()
    {
        $query = $this->entityManager->createQuery(
                        'SELECT a, sum(a.name) as foo FROM Doctrine\Tests\ORM\Tools\Pagination\Author a');
        $query->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, 'Doctrine\ORM\Tools\Pagination\CountSqlWalker');
        $query->setHint(CountWalker::HINT_DISTINCT, true);
        $query->setFirstResult(null)->setMaxResults(null);

        $this->assertEquals(
                "SELECT COUNT(*) AS _dctrn_count FROM (SELECT DISTINCT id0 FROM (SELECT a0_.id AS id0, a0_.name AS name1, sum(a0_.name) AS sclr2 FROM Author a0_) AS _dctrn_result) AS _dctrn_table", $query->getSql()
        );
    }

    public function testCountQuery_Having()
    {
        $query = $this->entityManager->createQuery(
                        'SELECT g, u, count(u.id) AS userCount FROM Doctrine\Tests\ORM\Tools\Pagination\Group g LEFT JOIN g.users u GROUP BY g.id HAVING userCount > 0');
        $query->setHint(Query::HINT_CUSTOM_OUTPUT_WALKER, 'Doctrine\ORM\Tools\Pagination\CountSqlWalker');
        $query->setFirstResult(null)->setMaxResults(null);

        $this->assertEquals(
                "SELECT COUNT(*) AS _dctrn_count FROM (SELECT DISTINCT id1 FROM (SELECT count(u0_.id) AS sclr0, g1_.id AS id1, u0_.id AS id2 FROM groups g1_ LEFT JOIN user_group u2_ ON g1_.id = u2_.group_id LEFT JOIN User u0_ ON u0_.id = u2_.user_id GROUP BY g1_.id HAVING sclr0 > 0) AS _dctrn_result) AS _dctrn_table", $query->getSql()
        );
    }
}