public function QueryAggregateInterface::aggregate
public QueryAggregateInterface::aggregate($field, $function, $langcode = NULL, &$alias = NULL)
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 $alias: (optional) The key that will be used on the resultset.
Return value
\Drupal\Core\Entity\Query\QueryAggregateInterface The called object.
File
- core/lib/Drupal/Core/Entity/Query/QueryAggregateInterface.php, line 29
Class
- QueryAggregateInterface
- Defines a interface for aggregated entity queries.
Namespace
Drupal\Core\Entity\QueryCode
public function aggregate($field, $function, $langcode = NULL, &$alias = NULL);
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https://api.drupal.org/api/drupal/core!lib!Drupal!Core!Entity!Query!QueryAggregateInterface.php/function/QueryAggregateInterface::aggregate/8.1.x