odoo-pos-addons/pos_restaurant_table_booking/models/restaurant_table_booking.py

# -*- coding: utf-8 -*-
from odoo import models, fields


class RestaurantTable_booking(models.Model):
    _name = 'restaurant.table_booking'
    _description = "Resaturant table booking"
    _order = 'datetime_start, datetime_stop, table_id'

    booking_id = fields.Many2one(comodel_name='restaurant.booking', string="Booking", required=True, ondelete='cascade')
    name = fields.Char(related='booking_id.name', store=True)
    count = fields.Integer(related='booking_id.count', store=True)
    datetime_start = fields.Datetime(related='booking_id.datetime_start', store=True)
    datetime_stop = fields.Datetime(related='booking_id.datetime_stop', store=True)
    duration = fields.Float(related='booking_id.duration')
    table_id = fields.Many2one(comodel_name='restaurant.table', string="Table", required=True)
    color = fields.Char(related='table_id.color', store=True)