public static function ExpressionContainerBase::sortByWeightProperty in Rules 8.3

Sorts an array of expressions by 'weight' property.

Callback for uasort().

Parameters

\Drupal\rules\Engine\ExpressionInterface $a: First item for comparison.

\Drupal\rules\Engine\ExpressionInterface $b: Second item for comparison.

Return value

int The comparison result for uasort().

File

src/Engine/ExpressionContainerBase.php, line 54

Class

ExpressionContainerBase

Common base class for action and condition expression containers.

Namespace

Drupal\rules\Engine

Code

public static function sortByWeightProperty(ExpressionInterface $a, ExpressionInterface $b) {
  $a_weight = $a
    ->getWeight();
  $b_weight = $b
    ->getWeight();
  if ($a_weight == $b_weight) {
    return 0;
  }
  return $a_weight < $b_weight ? -1 : 1;
}