//Set defaults
                $this->created = new \DateTime('now');
                $this->updated = new \DateTime('now');
+
+               //Set collections
                $this->applications = new ArrayCollection();
                $this->users = new ArrayCollection();
        }
         * {@inheritdoc}
         */
        public function preUpdate(PreUpdateEventArgs $eventArgs) {
-               //Check that we have an session instance
+               //Check that we have a dance instance
                if (($dance = $eventArgs->getEntity()) instanceof Dance) {
                        //Set updated value
                        $dance->setUpdated(new \DateTime('now'));