Add module second_ean13

pos_second_ean13/product.py

@@ -0,0 +1,47 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    POS Second EAN13 module for Odoo
+#    Copyright (C) 2016 Akretion (http://www.akretion.com)
+#    @author Alexis de Lattre <alexis.delattre@akretion.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from openerp import models, fields, api, _
+from openerp.exceptions import ValidationError
+from openerp.addons.product.product import check_ean
+
+
+class ProductProduct(models.Model):
+    _inherit = 'product.product'
+
+    second_ean13 = fields.Char(
+        string='Second EAN13 Barcode', size=13,
+        help='If the same product is available with two EAN13, you can enter '
+        'a second EAN13 in this field')
+
+    @api.multi
+    @api.constrains('second_ean13')
+    def _check_second_ean13(self):
+        for product in self:
+            if product.second_ean13:
+                if not product.ean13:
+                    raise ValidationError(_(
+                        "You should use the second EAN13 field only when "
+                        "there is already a value in the main EAN13 field"))
+                if not check_ean(product.second_ean13):
+                    raise ValidationError(_(
+                        "The second EAN13 barcode is invalid."))