public function ConditionInterface::isNull

Sets a condition that the specified field be NULL.

Parameters

$field: The name of the field to check.

Return value

Drupal\Core\Database\Query\ConditionInterface The called object.

6 methods override ConditionInterface::isNull()

File

drupal/core/lib/Drupal/Core/Database/Query/ConditionInterface.php, line 70
Definition of Drupal\Core\Database\Query\ConditionInterface

Class

ConditionInterface
Interface for a conditional clause in a query.

Namespace

Drupal\Core\Database\Query

Code

public function isNull($field);