reservation_1: id: 1 statistic_profile_id: 7 message: created_at: 2012-03-12 11:03:31.651441000 Z updated_at: 2012-03-12 11:03:31.651441000 Z reservable_id: 3 reservable_type: Training nb_reserve_places: reservation_2: id: 2 statistic_profile_id: 3 message: created_at: 2015-06-10 11:20:01.341130000 Z updated_at: 2015-06-10 11:20:01.341130000 Z reservable_id: 2 reservable_type: Machine nb_reserve_places: