public function ConditionInterface::isNull

public ConditionInterface::isNull($field)

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.

File

core/lib/Drupal/Core/Database/Query/ConditionInterface.php, line 77

Class

ConditionInterface

Interface for a conditional clause in a query.

Namespace

Drupal\Core\Database\Query

Code

public function isNull($field);