public function SelectExtender::exists in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Database/Query/SelectExtender.php \Drupal\Core\Database\Query\SelectExtender::exists()

Sets a condition that the specified subquery returns values.

Parameters

\Drupal\Core\Database\Query\SelectInterface $select: The subquery that must contain results.

Return value

$this The called object.

Overrides ConditionInterface::exists

File

core/lib/Drupal/Core/Database/Query/SelectExtender.php, line 463

Class

SelectExtender

The base extender class for Select queries.

Namespace

Drupal\Core\Database\Query

Code

public function exists(SelectInterface $select) {
  $this->query
    ->exists($select);
  return $this;
}