# -*- coding: utf-8 -*- # Part of Odoo. See LICENSE file for full copyright and licensing details. from odoo import fields, models, api, _ from odoo.exceptions import ValidationError class PosPrinter(models.Model): _inherit = 'pos.printer' printer_type = fields.Selection(selection_add=[('epson_epos', 'Use an Epson printer')]) epson_printer_ip = fields.Char(string='Epson Printer IP Address', help="Local IP address of an Epson receipt printer.", default="0.0.0.0") @api.constrains('epson_printer_ip') def _constrains_epson_printer_ip(self): for record in self: if record.printer_type == 'epson_epos' and not record.epson_printer_ip: raise ValidationError(_("Epson Printer IP Address cannot be empty."))