//Create the form according to the FormType created previously.
                //And give the proper parameters
                $form = $this->createForm('Rapsys\AirBundle\Form\CalendarType', ['calendar' => $this->config['calendar']['calendar'], 'prefix' => $this->config['calendar']['prefix']], [
                //Create the form according to the FormType created previously.
                //And give the proper parameters
                $form = $this->createForm('Rapsys\AirBundle\Form\CalendarType', ['calendar' => $this->config['calendar']['calendar'], 'prefix' => $this->config['calendar']['prefix']], [