| 1 | <?php |
||
| 21 | class LdapUserPhotoSubscriber extends BaseSubscriber implements EventSubscriberInterface |
||
| 22 | { |
||
| 23 | /** |
||
| 24 | * Get event listeners. |
||
| 25 | * |
||
| 26 | * @static |
||
| 27 | * |
||
| 28 | * @return array |
||
| 29 | */ |
||
| 30 | public static function getSubscribedEvents() |
||
| 36 | |||
| 37 | /** |
||
| 38 | * Save the user profile photo from LDAP to the object storage. |
||
| 39 | * |
||
| 40 | * @param UserProfileSyncEvent $event |
||
| 41 | */ |
||
| 42 | public function syncUserPhoto(UserProfileSyncEvent $event) |
||
| 54 | } |
||
| 55 |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: