Notification: add a counter for notifications

src/Bundle/ChillMainBundle/config/services/notification.yaml

@@ -22,3 +22,30 @@ services:
     Chill\MainBundle\Notification\Templating\NotificationTwigExtension: ~
 
     Chill\MainBundle\Notification\Templating\NotificationTwigExtensionRuntime: ~
+
+    Chill\MainBundle\Notification\Counter\NotificationByUserCounter:
+        autoconfigure: true
+        autowire: true
+        tags:
+            -
+                name: 'doctrine.orm.entity_listener'
+                event: 'preFlush'
+                entity: 'Chill\MainBundle\Entity\Notification'
+                # set the 'lazy' option to TRUE to only instantiate listeners when they are used
+                lazy: true
+                method: 'onPreFlushNotification'
+
+            -
+                name: 'doctrine.orm.entity_listener'
+                event: 'postUpdate'
+                entity: 'Chill\MainBundle\Entity\NotificationComment'
+                # set the 'lazy' option to TRUE to only instantiate listeners when they are used
+                lazy: true
+                method: 'onEditNotificationComment'
+            -
+                name: 'doctrine.orm.entity_listener'
+                event: 'postPersist'
+                entity: 'Chill\MainBundle\Entity\NotificationComment'
+                # set the 'lazy' option to TRUE to only instantiate listeners when they are used
+                lazy: true
+                method: 'onEditNotificationComment'