Add validation to sepa creditor identifier

issue5927
review28861002

INSTALL

@@ -12,6 +12,7 @@ Prerequisites
  * trytond_account_payment (http://www.tryton.org/)
  * trytond_bank (http://www.tryton.org/)
  * trytond_company (http://www.tryton.org/)
+ * python-stdnum (http://arthurdejong.org/python-stdnum/)
 
 Installation
 ------------

party.py

@@ -3,6 +3,9 @@
 from sql import Null, Literal
 from sql.functions import CurrentTimestamp
 
+import stdnum.eu.at_02 as sepa
+import stdnum.exceptions
+
 from trytond.pool import PoolMeta, Pool
 from trytond.model import fields
 from trytond.transaction import Transaction
@@ -59,6 +62,8 @@ class PartyIdentifier:
         cls._error_messages.update({
                 'unique_sepa': ('Party "%(party)s" has more than one '
                     'SEPA Creditor Identifier.'),
+                'sepa_invalid': ('The SEPA identifier "%(code)s" on party '
+                    '"%(party)s" is not valid.'),
                 })
 
     @classmethod
@@ -69,7 +74,6 @@ class PartyIdentifier:
 
     def check_code(self):
         super(PartyIdentifier, self).check_code()
-        # TODO validate identifier with python-stdnum
         if self.type == 'sepa':
             for identifier in self.party.identifiers:
                 if identifier.type == 'sepa' and self != identifier:
@@ -77,3 +81,23 @@ class PartyIdentifier:
                             'invalid_sepa': self.code,
                             'party': self.party.rec_name,
                             })
+            if not sepa.is_valid(self.code):
+                # Called from pre_validate so party may not be saved yet
+                if self.party and self.party.id > 0:
+                    party = self.party.rec_name
+                else:
+                    party = ''
+                self.raise_user_error('sepa_invalid', {
+                        'code': self.code,
+                        'party': party,
+                        })
+
+    @fields.depends('type', 'code')
+    def on_change_with_code(self):
+        code = super(PartyIdentifier, self).on_change_with_code()
+        if self.type == 'sepa':
+            try:
+                return sepa.compact(self.code)
+            except stdnum.exceptions.ValidationError:
+                pass
+        return code

setup.py

@@ -47,7 +47,7 @@ if minor_version % 2:
         'hg+http://hg.tryton.org/modules/%s#egg=%s-%s' % (
             name[8:], name, version))
 
-requires = ['Genshi', 'lxml', 'python-dateutil']
+requires = ['Genshi', 'lxml', 'python-dateutil', 'python-stdnum >= 1.0']
 for dep in info.get('depends', []):
     if not re.match(r'(ir|res)(\W|$)', dep):
         requires.append(get_require_version('trytond_%s' % dep))

tests/test_account_payment_sepa.py

@@ -32,7 +32,7 @@ def setup_environment():
 
     currency = create_currency('EUR')
     company = create_company(currency=currency)
-    sepa = Identifier(party=company.party, code='BE68539007547034',
+    sepa = Identifier(party=company.party, code='ES23ZZZ47690558N',
         type='sepa')
     sepa.save()
     bank_party = Party(name='European Bank')
@@ -257,15 +257,44 @@ class AccountPaymentSepaTestCase(ModuleTestCase):
 
         party = Party(name='test')
 
-        sepa = Identifier(party=party, code='BE68539007547034',
+        sepa = Identifier(party=party, code='ES23ZZZ47690558N',
             type='sepa')
         sepa.save()
 
-        sepa2 = Identifier(party=party, code='BE68539007547034',
+        sepa2 = Identifier(party=party, code='ES23ZZZ47690558N',
             type='sepa')
         with self.assertRaises(UserError):
             sepa2.save()
 
+    @with_transaction()
+    def test_sepa_identifier(self):
+        'Test sepa indentifier validation'
+        pool = Pool()
+        Party = pool.get('party.party')
+        Identifier = pool.get('party.identifier')
+
+        party = Party(name='test')
+        sepa = Identifier(party=party, code='BE68539007547034',
+            type='sepa')
+        with self.assertRaises(UserError):
+            sepa.save()
+
+        party2 = Party(name='test2')
+        sepa = Identifier(party=party2, code='007547034',
+            type='sepa')
+        with self.assertRaises(UserError):
+            sepa.save()
+
+        party3 = Party(name='test3')
+        sepa = Identifier(party=party3, code='ES23ZZZ47690558N',
+            type='sepa')
+        sepa.save()
+
+        party4 = Party(name='test4')
+        sepa = Identifier(party=party4, code='ES 23ZZZ 4769 055  8N',
+            type='sepa')
+        sepa.save()
+
     @with_transaction()
     def test_payment_sepa_bank_account_number(self):
         'Test Payment.sepa_bank_account_number'