public function QueryAggregate::existsAggregate in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Entity/Query/Sql/QueryAggregate.php \Drupal\Core\Entity\Query\Sql\QueryAggregate::existsAggregate()
2. 10 core/lib/Drupal/Core/Entity/Query/Sql/QueryAggregate.php \Drupal\Core\Entity\Query\Sql\QueryAggregate::existsAggregate()

Queries for the existence of a field.

Parameters

string $field: The name of the field.

string $function: The aggregate function.

$langcode: (optional) The language code.

Return value

$this The called object.

Overrides QueryAggregateInterface::existsAggregate

File

core/lib/Drupal/Core/Entity/Query/Sql/QueryAggregate.php, line 57

Class

QueryAggregate

The SQL storage entity query aggregate class.

Namespace

Drupal\Core\Entity\Query\Sql

Code

public function existsAggregate($field, $function, $langcode = NULL) {
  return $this->conditionAggregate
    ->exists($field, $function, $langcode);
}