1 # -*- coding: utf-8 -*-
2 ##############################################################################
4 # OpenERP, Open Source Management Solution
5 # Copyright (C) 2004-2011 OpenERP SA (<http://openerp.com>)
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 ##############################################################################
30 logging.getLogger('base_vat').warning("VAT validation partially unavailable because the `vatnumber` Python library cannot be found. "
31 "Install it to support more countries, for example with `easy_install vatnumber`.")
34 from osv import osv, fields
35 from tools.misc import ustr
36 from tools.translate import _
39 'be': 'BE0477472701', 'at': 'ATU12345675',
40 'bg': 'BG1234567892', 'cy': 'CY12345678F',
41 'cz': 'CZ12345679', 'de': 'DE123456788',
42 'dk': 'DK12345674', 'ee': 'EE123456780',
43 'es': 'ESA12345674', 'fi': 'FI12345671',
44 'fr': 'FR32123456789', 'gb': 'GB123456782',
45 'gr': 'GR12345670', 'hu': 'HU12345676',
46 'ie': 'IE1234567T', 'it': 'IT12345670017',
47 'lt': 'LT123456715', 'lu': 'LU12345613',
48 'lv': 'LV41234567891', 'mt': 'MT12345634',
49 'nl': 'NL123456782B90', 'pl': 'PL1234567883',
50 'pt': 'PT123456789', 'ro': 'RO1234567897',
51 'se': 'SE123456789701', 'si': 'SI12345679',
52 'sk': 'SK0012345675', 'el': 'EL12345670',
53 'mx': 'MXABC123456T1B', 'no': 'NO123456785',
54 'hr': 'HR01234567896', # Croatia, contributed by Milan Tribuson
57 class res_partner(osv.osv):
58 _inherit = 'res.partner'
60 def _split_vat(self, vat):
61 vat_country, vat_number = vat[:2].lower(), vat[2:].replace(' ', '')
62 return vat_country, vat_number
64 def simple_vat_check(self, cr, uid, country_code, vat_number, context=None):
66 Check the VAT number depending of the country.
67 http://sima-pc.com/nif.php
69 check_func_name = 'check_vat_' + country_code
70 check_func = getattr(self, check_func_name, None) or \
71 getattr(vatnumber, check_func_name, None)
73 # No VAT validation available, default to check that the country code exists
74 res_country = self.pool.get('res.country')
75 return bool(res_country.search(cr, uid, [('code', '=ilike', country_code)], context=context))
76 return check_func(vat_number)
78 def vies_vat_check(self, cr, uid, country_code, vat_number, context=None):
80 # Validate against VAT Information Exchange System (VIES)
81 # see also http://ec.europa.eu/taxation_customs/vies/
82 return vatnumber.check_vies(country_code.upper()+vat_number)
84 # see http://ec.europa.eu/taxation_customs/vies/checkVatService.wsdl
85 # Fault code may contain INVALID_INPUT, SERVICE_UNAVAILABLE, MS_UNAVAILABLE,
86 # TIMEOUT or SERVER_BUSY. There is no way we can validate the input
87 # with VIES if any of these arise, including the first one (it means invalid
88 # country code or empty VAT number), so we fall back to the simple check.
89 return self.simple_vat_check(cr, uid, country_code, vat_number, context=context)
91 def check_vat(self, cr, uid, ids, context=None):
92 user_company = self.pool.get('res.users').browse(cr, uid, uid).company_id
93 if user_company.vat_check_vies:
94 # force full VIES online check
95 check_func = self.vies_vat_check
97 # quick and partial off-line checksum validation
98 check_func = self.simple_vat_check
100 for partner in self.browse(cr, uid, ids, context=context):
103 vat_country, vat_number = self._split_vat(partner.vat)
104 if not check_func(cr, uid, vat_country, vat_number, context=context):
108 def vat_change(self, cr, uid, ids, value, context=None):
109 return {'value': {'vat_subjected': bool(value)}}
112 'vat_subjected': fields.boolean('VAT Legal Statement', help="Check this box if the partner is subjected to the VAT. It will be used for the VAT legal statement.")
115 def _construct_constraint_msg(self, cr, uid, ids, context=None):
116 def default_vat_check(cn, vn):
117 # by default, a VAT number is valid if:
118 # it starts with 2 letters
119 # has more than 3 characters
120 return cn[0] in string.ascii_lowercase and cn[1] in string.ascii_lowercase
121 vat_country, vat_number = self._split_vat(self.browse(cr, uid, ids)[0].vat)
122 vat_no = "'CC##' (CC=Country Code, ##=VAT Number)"
123 if default_vat_check(vat_country, vat_number):
124 vat_no = _ref_vat[vat_country] if vat_country in _ref_vat else vat_no
125 return '\n' + _('This VAT number does not seem to be valid.\nNote: the expected format is %s') % vat_no
127 _constraints = [(check_vat, _construct_constraint_msg, ["vat"])]
130 # Mexican VAT verification, contributed by <moylop260@hotmail.com>
131 # and Panos Christeas <p_christ@hol.gr>
132 __check_vat_mx_re = re.compile(r"(?P<primeras>[A-Za-z\xd1\xf1&]{3,4})" \
134 r"(?P<ano>[0-9]{2})(?P<mes>[01][0-9])(?P<dia>[0-3][0-9])" \
136 r"(?P<code>[A-Za-z0-9&\xd1\xf1]{3})$")
137 def check_vat_mx(self, vat):
138 ''' Mexican VAT verification
142 # we convert to 8-bit encoding, to help the regex parse only bytes
143 vat = ustr(vat).encode('iso8859-1')
144 m = self.__check_vat_mx_re.match(vat)
149 ano = int(m.group('ano'))
154 datetime.date(ano, int(m.group('mes')), int(m.group('dia')))
158 #Valid format and valid date
162 # Norway VAT validation, contributed by Rolv Råen (adEgo) <rora@adego.no>
163 def check_vat_no(self, vat):
165 Check Norway VAT number.See http://www.brreg.no/english/coordination/number.html
174 sum = (3 * int(vat[0])) + (2 * int(vat[1])) + \
175 (7 * int(vat[2])) + (6 * int(vat[3])) + \
176 (5 * int(vat[4])) + (4 * int(vat[5])) + \
177 (3 * int(vat[6])) + (2 * int(vat[7]))
179 check = 11 -(sum % 11)
183 # 10 is not a valid check digit for an organization number
185 return check == int(vat[8])
189 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: