8.2.x Condition.php public Condition::exists(SelectInterface $select)
8.2.x Condition.php public Condition::exists($field, $langcode = NULL)
8.2.x Condition.php public Condition::exists($field, $langcode = NULL)
8.2.x Condition.php public Condition::exists($field, $langcode = NULL)
8.0.x Condition.php public Condition::exists(SelectInterface $select)
8.0.x Condition.php public Condition::exists($field, $langcode = NULL)
8.0.x Condition.php public Condition::exists($field, $langcode = NULL)
8.0.x Condition.php public Condition::exists($field, $langcode = NULL)
8.1.x Condition.php public Condition::exists(SelectInterface $select)
8.1.x Condition.php public Condition::exists($field, $langcode = NULL)
8.1.x Condition.php public Condition::exists($field, $langcode = NULL)
8.1.x Condition.php public Condition::exists($field, $langcode = NULL)
8.3.x Condition.php public Condition::exists(SelectInterface $select)
8.3.x Condition.php public Condition::exists($field, $langcode = NULL)
8.3.x Condition.php public Condition::exists($field, $langcode = NULL)
8.3.x Condition.php public Condition::exists($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/Sql/Condition.php, line 62

Class

Condition
Implements entity query conditions for SQL databases.

Namespace

Drupal\Core\Entity\Query\Sql

Code

public function exists($field, $langcode = NULL) {
  return $this->condition($field, NULL, 'IS NOT NULL', $langcode);
}