/**
* {@inheritdoc}
*/
public static function sort(ConfigEntityInterface $a, ConfigEntityInterface $b)
{
// Sort the entities using the entity class's sort() method.
// See \Drupal\Core\Config\Entity\ConfigEntityBase::sort().
/* @var $a WorkflowTransitionInterface */
/* @var $b WorkflowTransitionInterface */
if (!$a->getFromSid() || !$b->getFromSid()) {
return 0;
}
// First sort on From-State.
$from_state_a = $a->getFromState();
$from_state_b = $b->getFromState();
if ($from_state_a->weight < $from_state_b->weight) {
return -1;
}
if ($from_state_a->weight > $from_state_b->weight) {
return +1;
}
// Then sort on To-State.
$to_state_a = $a->getToState();
$to_state_b = $b->getToState();
if ($to_state_a->weight < $to_state_b->weight) {
return -1;
}
if ($to_state_a->weight > $to_state_b->weight) {
return +1;
}
return 0;
}
