protected function LoopExpression::allowsMetadataAssertions in Rules 8.3

Determines whether child-expressions are allowed to assert metadata.

Return value

bool Whether child-expressions are allowed to assert metadata.

Overrides ExpressionContainerBase::allowsMetadataAssertions

See also

\Drupal\rules\Engine\ExpressionInterface::prepareExecutionMetadataState()

File

src/Plugin/RulesExpression/LoopExpression.php, line 103

Class

LoopExpression

Holds a set of actions that are executed over the iteration of a list.

Namespace

Drupal\rules\Plugin\RulesExpression

Code

protected function allowsMetadataAssertions() {

  // As the list can be empty, we cannot ensure child expressions are
  // executed at all - thus no assertions can be added.
  return FALSE;
}