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 325  
Class
- SelectComplexTest
 - Tests the Select query builder with more complex queries.
 
Namespace
Drupal\KernelTests\Core\DatabaseCode
public function testJoinTwice() {
  $query = $this->connection
    ->select('test')
    ->fields('test');
  $alias = $query->join('test', 'test', 'test.job = %alias.job');
  $query->addField($alias, 'name', 'othername');
  $query->addField($alias, 'job', 'otherjob');
  $query->where("{$alias}.name <> test.name");
  $crowded_job = $query->execute()
    ->fetch();
  $this->assertEqual($crowded_job->job, $crowded_job->otherjob, 'Correctly joined same table twice.');
  $this->assertNotEqual($crowded_job->name, $crowded_job->othername, 'Correctly joined same table twice.');
}
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