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Implementing subscriber detaching

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This commit is contained in:
Jose Lorenzo Rodriguez 2011-12-13 23:29:36 -04:30
parent adf95a7ac6
commit bb62f05890
2 changed files with 47 additions and 0 deletions
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25
lib/Cake/Event/CakeEventManager.php
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@ -88,6 +88,9 @@ class CakeEventManager {
* @return void
*/
public function detach($callable, $eventKey = null) {
if ($callable instanceof CakeEventListener) {
return $this->_detachSubscriber($callable, $eventKey);
}
if (empty($eventKey)) {
foreach (array_keys($this->_listeners) as $eventKey) {
$this->detach($callable, $eventKey);
@ -107,6 +110,28 @@ class CakeEventManager {
}
}
/**
* Auxiliary function to help detach all listeners provided by an object implementing CakeEventListener
*
* @param CakeEventListener $subscriber the subscriber to be detached
* @param string $eventKey optional event key name to unsubscribe the listener from
* @return void
*/
protected function _detachSubscriber(CakeEventListener $subscriber, $eventKey = null) {
$events = $subscriber->implementedEvents();
if (!empty($eventKey) && empty($events[$eventKey])) {
return;
} else if (!empty($eventKey)) {
$events = array($eventKey => $events[$eventKey]);
}
foreach ($events as $key => $function) {
if (is_array($function)) {
$function = $function['callable'];
}
$this->detach(array($subscriber, $function), $key);
}
}
/**
* Dispatches a new event to all configured listeners
*

22
lib/Cake/Test/Case/Event/CakeEventManagerTest.php
View file

@ -251,4 +251,26 @@ class CakeEventManagerTest extends CakeTestCase {
$event = new CakeEvent('another.event', $this, array('some' => 'data'));
$manager->dispatch($event);
}
/**
* Tests subscribing a listener object and firing the events it subscribed to
*
* @return void
*/
public function testDetachSubscriber() {
$manager = new CakeEventManager;
$listener = $this->getMock('CustomTestEventListerner', array('secondListenerFunction'));
$manager->attach($listener);
$expected = array(
array('callable' => array($listener, 'secondListenerFunction'), 'passParams' => true)
);
$this->assertEquals($expected, $manager->listeners('another.event'));
$expected = array(
array('callable' => array($listener, 'listenerFunction'), 'passParams' => false)
);
$this->assertEquals($expected, $manager->listeners('fake.event'));
$manager->detach($listener);
$this->assertEquals(array(), $manager->listeners('fake.event'));
$this->assertEquals(array(), $manager->listeners('another.event'));
}
}