Initial commit: L10N_Europe packages

odoo-bringout-oca-ocb-l10n_de/l10n_de/models/res_company.py

@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import models, fields, api, _
+from odoo.exceptions import ValidationError
+import stdnum.de.stnr
+import stdnum.exceptions
+
+
+class ResCompany(models.Model):
+    _inherit = 'res.company'
+
+    l10n_de_stnr = fields.Char(string="St.-Nr.", help="Steuernummer. Scheme: ??FF0BBBUUUUP, e.g.: 2893081508152 https://de.wikipedia.org/wiki/Steuernummer")
+    l10n_de_widnr = fields.Char(string="W-IdNr.", help="Wirtschafts-Identifikationsnummer.")
+
+    @api.depends('country_code')
+    @api.constrains('state_id', 'l10n_de_stnr')
+    def _validate_l10n_de_stnr(self):
+        for record in self:
+            record.get_l10n_de_stnr_national()
+
+    def get_l10n_de_stnr_national(self):
+        self.ensure_one()
+        national_steuer_nummer = None
+
+        if self.l10n_de_stnr and self.country_code == 'DE':
+            try:
+                national_steuer_nummer = stdnum.de.stnr.to_country_number(self.l10n_de_stnr, self.state_id.name)
+            except stdnum.exceptions.InvalidComponent:
+                raise ValidationError(_("Your company's SteuerNummer is not compatible with your state"))
+            except stdnum.exceptions.InvalidFormat:
+                if stdnum.de.stnr.is_valid(self.l10n_de_stnr, self.state_id.name):
+                    national_steuer_nummer = self.l10n_de_stnr
+                else:
+                    raise ValidationError(_("Your company's SteuerNummer is not valid"))
+
+        elif self.l10n_de_stnr:
+            national_steuer_nummer = self.l10n_de_stnr
+
+        return national_steuer_nummer