Hi there. i want to create a qweb report that takes data from multiple models.

3 models are 

class Reservation(models.Model):

     _name = 'hotel.reservation'

     checkout_date = fields.Datetime()

     #other fields

class RoomServiuce(models.model):

   _name = 'hotel.room_service'

   name = fields.Char(string='service name')

  #other fields

class RoomServiceUsed(models.Model)

    _name = 'hotel.use_room_services'

   res_id = fields.Many2one('hotel.reservation')

   rs_id = fields.Many2one('hotel.room_services')

Now, i want to be able to display all the room services used ( from room_service model and reservation model) on my custom qweb report.

I don't know if am getting it all wrong. Will appreciate your response and your approach.

Thanks