public ConditionAggregateInterface::exists($field, $function, $langcode = NULL)
Queries for the existence of a field.
Parameters
$field:
string $langcode:
Return value
ConditionInterface
See also
\Drupal\Core\Entity\Query\QueryInterface::exists()
File
core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php, line 41
Class
ConditionAggregateInterface Defines aggregated entity query conditions.
Namespace
Drupal\Core\Entity\Query
Code
public function exists($field, $function,