Added supplementary check for CUIT number of ar localflavor

Thanks Kevin Schaul for the initial patch.

1 files changed, 3 insertions, 0 deletions

diff --git a/django/contrib/localflavor/ar/forms.py b/django/contrib/localflavor/ar/forms.py
index ffc2d177c0..dc4235f9dd 100644
--- a/django/contrib/localflavor/ar/forms.py
+++ b/django/contrib/localflavor/ar/forms.py
@@ -81,6 +81,7 @@ class ARCUITField(RegexField):
     default_error_messages = {
         'invalid': _('Enter a valid CUIT in XX-XXXXXXXX-X or XXXXXXXXXXXX format.'),
         'checksum': _("Invalid CUIT."),
+        'legal_type': _('Invalid legal type. Type must be 27, 20, 23 or 30.'),
     }
 
     def __init__(self, max_length=None, min_length=None, *args, **kwargs):
@@ -96,6 +97,8 @@ class ARCUITField(RegexField):
         if value in EMPTY_VALUES:
             return ''
         value, cd = self._canon(value)
+        if not value[:2] in ['27', '20', '23', '30']:
+            raise ValidationError(self.error_messages['legal_type'])
         if self._calc_cd(value) != cd:
             raise ValidationError(self.error_messages['checksum'])
         return self._format(value, cd)