Documentation & API reference
public function ConditionAggregateInterface::exists
Queries for the existence of a field.
Parameters
$field:
string $langcode:
Return value
See also
\Drupal\Core\Entity\Query\QueryInterface::exists()
1 method overrides ConditionAggregateInterface::exists()
- ConditionAggregate::exists in drupal/
core/ modules/ field_sql_storage/ lib/ Drupal/ field_sql_storage/ Entity/ ConditionAggregate.php - Implements \Drupal\Core\Entity\Query\ConditionInterface::exists().
File
- drupal/
core/ lib/ Drupal/ Core/ Entity/ Query/ ConditionAggregateInterface.php, line 46 - Contains \Drupal\Core\Entity\Query\ConditionAggregateInterface.
Class
- ConditionAggregateInterface
- Defines aggregated entity query conditions.
Namespace
Drupal\Core\Entity\QueryCode
public function exists($field, $function, $langcode = NULL);