function QueryAggregateInterface::aggregate
Specifies a field and a function to aggregate on.
Available functions: SUM, AVG, MIN, MAX and COUNT.
@todo What about GROUP_CONCAT support?
Parameters
string $field: The name of the field to aggregate by.
string $function: The aggregation function, for example COUNT or MIN.
string $langcode: (optional) The language code.
string $alias: (optional) The key that will be used on the resultset.
Return value
$this The called object.
File
-
core/
lib/ Drupal/ Core/ Entity/ Query/ QueryAggregateInterface.php, line 29
Class
- QueryAggregateInterface
- Defines an interface for aggregated entity queries.
Namespace
Drupal\Core\Entity\QueryCode
public function aggregate($field, $function, $langcode = NULL, &$alias = NULL);