public function Condition::exists
public Condition::exists($field, $langcode = NULL)
Queries for the existence of a field.
Parameters
$field:
string $langcode:
Return value
ConditionInterface
Overrides ConditionInterface::exists
See also
\Drupal\Core\Entity\Query\QueryInterface::exists()
File
- core/lib/Drupal/Core/Entity/Query/Null/Condition.php, line 21
Class
- Condition
- Defines the condition class for the null entity query.
Namespace
Drupal\Core\Entity\Query\NullCode
public function exists($field, $langcode = NULL) { return $this->condition($field, NULL, 'IS NOT NULL', $langcode); }
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Entity!Query!Null!Condition.php/function/Condition::exists/8.1.x