appointment.py

# -*- coding: utf-8 -*-

from trytond.model import ModelView, ModelSQL, fields, Workflow
from trytond.pyson import Eval, Not, Equal

__all__ = ['Appointment']

class Appointment(Workflow, ModelSQL, ModelView):
    'Add Calendar to the Appointment'
    __name__ = 'gnuhealth.appointment'

    physician = fields.Many2One('gnuhealth.physician', 'Physician',
        select=True, help='Physician\'s Name')

    service = fields.Many2One('product.product', 'Service',
        domain=[('id', 'in', Eval('physician.services'))],
        depends=['physician'],
        select=True,)