Fixed #16202 -- Added a Slovenian localflavor. Thanks to Jure Cuhalev…

… < gandalf@owca.info>, Gasper Zejn and Domen Kozar for the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16706 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/localflavor/si/forms.py

@@ -0,0 +1,164 @@
+"""
+Slovenian specific form helpers.
+"""
+
+import datetime
+import re
+
+from django.forms.fields import CharField, Select, ChoiceField
+from django.core.validators import EMPTY_VALUES
+from django.forms import ValidationError
+from django.utils.translation import ugettext_lazy as _
+
+
+class SIEMSOField(CharField):
+    """A form for validating Slovenian personal identification number.
+
+    Additionally stores gender, nationality and birthday to self.info dictionary.
+    """
+
+    default_error_messages = {
+        'invalid': _(u'This field should contain exactly 13 digits.'),
+        'date': _(u'The first 7 digits of the EMSO must represent a valid past date.'),
+        'checksum': _(u'The EMSO is not valid.'),
+    }
+    emso_regex = re.compile('^(\d{2})(\d{2})(\d{3})(\d{2})(\d{3})(\d)$')
+
+    def clean(self, value):
+        super(SIEMSOField, self).clean(value)
+        if value in EMPTY_VALUES:
+            return u''
+
+        value = value.strip()
+
+        m = self.emso_regex.match(value)
+        if m is None:
+            raise ValidationError(self.default_error_messages['invalid'])
+
+        # Validate EMSO
+        s = 0
+        int_values = [int(i) for i in value]
+        for a, b in zip(int_values, range(7, 1, -1) * 2):
+            s += a * b
+        chk = s % 11
+        if chk == 0:
+            K = 0
+        else:
+            K = 11 - chk
+
+        if K == 10 or int_values[-1] != K:
+            raise ValidationError(self.default_error_messages['checksum'])
+
+        # Extract extra info in the identification number
+        day, month, year, nationality, gender, chksum = [int(i) for i in m.groups()]
+
+        if year < 890:
+            year += 2000
+        else:
+            year += 1000
+
+        # validate birthday
+        try:
+            birthday = datetime.date(year, month, day)
+        except ValueError:
+            raise ValidationError(self.error_messages['date'])
+        if datetime.date.today() < birthday:
+            raise ValidationError(self.error_messages['date'])
+
+        self.info = {
+            'gender': gender < 500 and 'male' or 'female',
+            'birthdate': birthday,
+            'nationality': nationality,
+        }
+        return value
+
+
+class SITaxNumberField(CharField):
+    """Slovenian tax number field.
+
+    Valid input is SIXXXXXXXX or XXXXXXXX where X is a number.
+    """
+
+    default_error_messages = {
+        'invalid': _(u'Enter a valid tax number in form SIXXXXXXXX'),
+    }
+    sitax_regex = re.compile('^(?:SI)?([1-9]\d{7})$')
+
+    def clean(self, value):
+        super(SITaxNumberField, self).clean(value)
+        if value in EMPTY_VALUES:
+            return u''
+
+        value = value.strip()
+
+        m = self.sitax_regex.match(value)
+        if m is None:
+            raise ValidationError(self.default_error_messages['invalid'])
+        value = m.groups()[0]
+
+        # Validate Tax number
+        s = 0
+        int_values = [int(i) for i in value]
+        for a, b in zip(int_values, range(8, 1, -1)):
+            s += a * b
+        chk = 11 - (s % 11)
+        if chk == 10:
+            chk = 0
+
+        if int_values[-1] != chk:
+            raise ValidationError(self.default_error_messages['invalid'])
+
+        return value
+
+
+class SIPostalCodeField(ChoiceField):
+    """Slovenian post codes field.
+    """
+
+    def __init__(self, *args, **kwargs):
+        from si_postalcodes import SI_POSTALCODES_CHOICES
+        kwargs.setdefault('choices', SI_POSTALCODES_CHOICES)
+        super(SIPostalCodeField, self).__init__(*args, **kwargs)
+
+
+class SIPostalCodeSelect(Select):
+    """A Select widget that uses Slovenian postal codes as its choices.
+    """
+    def __init__(self, attrs=None):
+        from si_postalcodes import SI_POSTALCODES_CHOICES
+        super(SIPostalCodeSelect, self).__init__(attrs,
+            choices=SI_POSTALCODES_CHOICES)
+
+
+class SIPhoneNumberField(CharField):
+    """Slovenian phone number field.
+
+    Phone number must contain at least local area code.
+    Country code can be present.
+
+    Examples:
+
+    * +38640XXXXXX
+    * 0038640XXXXXX
+    * 040XXXXXX
+    * 01XXXXXX
+    * 0590XXXXX
+
+    """
+
+    default_error_messages = {
+        'invalid': _(u'Enter phone number in form +386XXXXXXXX or 0XXXXXXXX.'),
+    }
+    phone_regex = re.compile('^(?:(?:00|\+)386|0)(\d{7,8})$')
+
+    def clean(self, value):
+        super(SIPhoneNumberField, self).clean(value)
+        if value in EMPTY_VALUES:
+            return u''
+
+        value = value.replace(' ', '').replace('-', '').replace('/', '')
+        m = self.phone_regex.match(value)
+
+        if m is None:
+            raise ValidationError(self.default_error_messages['invalid'])
+        return m.groups()[0]