function SelectComplexTest::testJoinTwice

Confirms we can join on a single table twice with a dynamic alias.

File

core/tests/Drupal/KernelTests/Core/Database/SelectComplexTest.php, line 335

Class

SelectComplexTest

Tests the Select query builder with more complex queries.

Namespace

Code

public function testJoinTwice() {
    $query = $this->connection
        ->select('test')
        ->fields('test');
    $alias = $query->join('test', 'test', '[test].[job] = [%alias].[job]');
    $query->addField($alias, 'name', 'other_name');
    $query->addField($alias, 'job', 'other_job');
    $query->where("[{$alias}].[name] <> [test].[name]");
    $crowded_job = $query->execute()
        ->fetch();
    $this->assertEquals($crowded_job->other_job, $crowded_job->job, 'Correctly joined same table twice.');
    $this->assertNotEquals($crowded_job->other_name, $crowded_job->name, 'Correctly joined same table twice.');
}