If the administrator forgot to add a room for the shift, he has to go to the Rooms route and add the room. Redirecting to that page, all of the Create Shifts' form input is lost. Also in the Add Room form, if the administrator has not added an event in the system, he then has to go to Events route to add the event. Here also the form input is lost from the Add Rooms' form.
Attempt to create a shift.