function SelectComplexTest::testLeftOuterJoin

Tests LEFT OUTER joins.

File

core/tests/Drupal/KernelTests/Core/Database/SelectComplexTest.php, line 53

Class

SelectComplexTest

Tests the Select query builder with more complex queries.

Namespace

Code

public function testLeftOuterJoin() : void {
  $query = $this->connection
    ->select('test', 'p');
  $people_alias = $query->leftJoin('test_task', 't', '[t].[pid] = [p].[id]');
  $name_field = $query->addField('p', 'name', 'name');
  $query->addField($people_alias, 'task', 'task');
  $query->addField($people_alias, 'priority', 'priority');
  $query->orderBy($name_field);
  $result = $query->execute();
  $num_records = 0;
  $last_name = '0';
  // Verify that the results are returned in the correct order.
  foreach ($result as $record) {
    $num_records++;
    $this->assertGreaterThanOrEqual(0, strcmp($record->{$name_field}, $last_name));
  }
  $this->assertEquals(8, $num_records, 'Returned the correct number of rows.');
}