/**
* Evaluate all the transitions of an action and determine whether we should
* follow any of them yet.
*
* @param WorkflowActionInstance $action
* @return WorkflowTransition
*/
protected function checkTransitions(WorkflowActionInstance $action)
{
$transitions = $action->getValidTransitions();
// if there's JUST ONE transition, then we need should
// immediately follow it.
if ($transitions && $transitions->count() == 1) {
return $transitions->First();
}
}
/**
* When deleting an action from a workflow definition, make sure that workflows currently paused on that action
* are deleted
* Also removes all outbound transitions
*/
public function onAfterDelete()
{
parent::onAfterDelete();
$wfActionInstances = WorkflowActionInstance::get()->leftJoin("WorkflowInstance", '"WorkflowInstance"."ID" = "WorkflowActionInstance"."WorkflowID"')->where(sprintf('"BaseActionID" = %d AND ("WorkflowStatus" IN (\'Active\',\'Paused\'))', $this->ID));
foreach ($wfActionInstances as $wfActionInstance) {
$wfInstances = WorkflowInstance::get()->filter('CurrentActionID', $wfActionInstance->ID);
foreach ($wfInstances as $wfInstance) {
$wfInstance->Groups()->removeAll();
$wfInstance->Users()->removeAll();
$wfInstance->delete();
}
$wfActionInstance->delete();
}
// Delete outbound transitions
$transitions = WorkflowTransition::get()->filter('ActionID', $this->ID);
foreach ($transitions as $transition) {
$transition->Groups()->removeAll();
$transition->Users()->removeAll();
$transition->delete();
}
}
