Same name and namespace in other branches

1. 8.9.x core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php \Drupal\Core\Entity\Query\ConditionAggregateInterface::exists()
2. 10 core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php \Drupal\Core\Entity\Query\ConditionAggregateInterface::exists()
3. 11.x core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php \Drupal\Core\Entity\Query\ConditionAggregateInterface::exists()

Queries for the existence of a field.

Parameters

string $field: The field to query for existence.

string $function: The function.

string $langcode: (optional) For which language the entity should be prepared, defaults to the current content language.

Return value

\Drupal\Core\Entity\Query\ConditionInterface

See also

\Drupal\Core\Entity\Query\QueryInterface::exists()

1 method overrides ConditionAggregateInterface::exists()

ConditionAggregate::exists in core/lib/Drupal/Core/Entity/Query/Sql/ConditionAggregate.php

Queries for the existence of a field.

File

core/lib/Drupal/Core/Entity/Query/ConditionAggregateInterface.php, line 55

Class

ConditionAggregateInterface

Defines aggregated entity query conditions.

Namespace

Drupal\Core\Entity\Query

Code

public function exists($field, $function, $langcode = NULL);

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