añadido product_secuence y product_code_unique para crear secuencias de productos por categoría

related 6

product_sequence/models/res_company.py

@@ -0,0 +1,17 @@
+# Copyright 2004 Tiny SPRL
+# Copyright 2016 Sodexis
+# Copyright 2018 Eficent Business and IT Consulting Services S.L.
+#   (http://www.eficent.com)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class Company(models.Model):
+    _inherit = 'res.company'
+
+    use_parent_categories_to_determine_prefix = fields.Boolean(
+        string="Use parent categories to determine the prefix",
+        help="Use parent categories to determine the prefix "
+             "if the category has no settings for the prefix.",
+    )