function ConditionInterface::exists

Same name in this branch

11.1.x core/lib/Drupal/Core/Database/Query/ConditionInterface.php \Drupal\Core\Database\Query\ConditionInterface::exists()

Queries for the existence of a field.

Parameters

string $field: The field to query for existence.

string $langcode: (optional) For which language the entity should be prepared, defaults to the current content language.

Return value

$this

See also

\Drupal\Core\Entity\Query\QueryInterface::exists()

3 methods override ConditionInterface::exists()

Condition::exists in core/lib/Drupal/Core/Entity/Query/Null/Condition.php: Queries for the existence of a field.
Condition::exists in core/lib/Drupal/Core/Entity/Query/Sql/Condition.php: Queries for the existence of a field.
Condition::exists in core/lib/Drupal/Core/Config/Entity/Query/Condition.php: Queries for the existence of a field.

File

core/lib/Drupal/Core/Entity/Query/ConditionInterface.php, line 58

Class

ConditionInterface: Defines the entity query condition interface.

Namespace

Drupal\Core\Entity\Query

Code

public function exists($field, $langcode = NULL);