/**
* Get the event name for the loop depending of the event name and the loop name.
*
* This function also checks if there are services that listen to this event.
* If not the function returns null.
*
* @param string $eventName the event name (`TheliaEvents::LOOP_EXTENDS_ARG_DEFINITIONS`,
* `TheliaEvents::LOOP_EXTENDS_INITIALIZE_ARGS`, ...)
* @return null|string The event name for the loop if listeners exist, otherwise null is returned
*/
protected function getDispatchEventName($eventName)
{
$customEventName = TheliaEvents::getLoopExtendsEvent($eventName, $this->loopName);
if (!isset(self::$dispatchCache[$customEventName])) {
self::$dispatchCache[$customEventName] = $this->dispatcher->hasListeners($customEventName);
}
return self::$dispatchCache[$customEventName] ? $customEventName : null;
}
/**
* Returns an array of event names this subscriber wants to listen to.
*
* @return array The event names to listen to
*
* @api
*/
public static function getSubscribedEvents()
{
return [TheliaEvents::getLoopExtendsEvent(TheliaEvents::LOOP_EXTENDS_BUILD_MODEL_CRITERIA, 'customer') => ['extendCustomerLoop', 128], TheliaEvents::getLoopExtendsEvent(TheliaEvents::LOOP_EXTENDS_BUILD_MODEL_CRITERIA, 'order') => ['extendOrderLoop', 128], TheliaEvents::getLoopExtendsEvent(TheliaEvents::LOOP_EXTENDS_INITIALIZE_ARGS, 'order') => ['changeLimit', 128], TheliaEvents::getLoopExtendsEvent(TheliaEvents::LOOP_EXTENDS_BUILD_MODEL_CRITERIA, 'product') => ['extendProductBuildModelCriteria', 120]];
}
