partner-contact/base_location/models/partner.py

# -*- coding: utf-8 -*-
# Copyright 2016 Nicolas Bessi, Camptocamp SA
# Copyright 2018 Tecnativa - Pedro M. Baeza
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).

from odoo import models, fields, api


class ResPartner(models.Model):
    _inherit = 'res.partner'
    zip_id = fields.Many2one('res.better.zip', 'City/Location')

    @api.onchange('zip_id')
    def onchange_zip_id(self):
        if self.zip_id:
            self.zip = self.zip_id.name
            self.city = self.zip_id.city
            self.state_id = self.zip_id.state_id
            self.country_id = self.zip_id.country_id

    @api.onchange('state_id')
    def onchange_state_id(self):
        if self.state_id.country_id:
            self.country_id = self.state_id.country_id.id