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Fixed #3866 -- Added Italian Social Security and VAT input fields to …

…localflavor. Thanks, Massimiliano Ravelli.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@5018 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit e9b66ce1d3b6964fb05874c3f86541b54c1f1adf 1 parent c5f0895
Russell Keith-Magee freakboy3742 authored
1  AUTHORS
View
@@ -174,6 +174,7 @@ answer newbie questions, and generally made Django that much better:
J. Rademaker
Michael Radziej <mir@noris.de>
ramiro
+ Massimiliano Ravelli <massimiliano.ravelli@gmail.com>
Brian Ray <http://brianray.chipy.org/>
remco@diji.biz
rhettg@gmail.com
48 django/contrib/localflavor/it/forms.py
View
@@ -5,13 +5,15 @@
from django.newforms import ValidationError
from django.newforms.fields import Field, RegexField, Select, EMPTY_VALUES
from django.utils.translation import gettext
+from django.utils.encoding import smart_unicode
+from django.contrib.localflavor.it.util import ssn_check_digit, vat_number_check_digit
import re
class ITZipCodeField(RegexField):
def __init__(self, *args, **kwargs):
super(ITZipCodeField, self).__init__(r'^\d{5}$',
max_length=None, min_length=None,
- error_message=gettext(u'Enter a zip code in the format XXXXX.'),
+ error_message=gettext(u'Enter a valid zip code.'),
*args, **kwargs)
class ITRegionSelect(Select):
@@ -29,3 +31,47 @@ class ITProvinceSelect(Select):
def __init__(self, attrs=None):
from it_province import PROVINCE_CHOICES # relative import
super(ITProvinceSelect, self).__init__(attrs, choices=PROVINCE_CHOICES)
+
+class ITSocialSecurityNumberField(RegexField):
+ """
+ A form field that validates Italian Social Security numbers (codice fiscale).
+ For reference see http://www.agenziaentrate.it/ and search for
+ 'Informazioni sulla codificazione delle persone fisiche'.
+ """
+ err_msg = gettext(u'Enter a valid Social Security number.')
+ def __init__(self, *args, **kwargs):
+ super(ITSocialSecurityNumberField, self).__init__(r'^\w{3}\s*\w{3}\s*\w{5}\s*\w{5}$',
+ max_length=None, min_length=None, error_message=self.err_msg,
+ *args, **kwargs)
+
+ def clean(self, value):
+ value = super(ITSocialSecurityNumberField, self).clean(value)
+ if value == u'':
+ return value
+ value = re.sub('\s', u'', value).upper()
+ try:
+ check_digit = ssn_check_digit(value)
+ except ValueError:
+ raise ValidationError(self.err_msg)
+ if not value[15] == check_digit:
+ raise ValidationError(self.err_msg)
+ return value
+
+class ITVatNumberField(Field):
+ """
+ A form field that validates Italian VAT numbers (partita IVA).
+ """
+ def clean(self, value):
+ value = super(ITVatNumberField, self).clean(value)
+ if value == u'':
+ return value
+ err_msg = gettext(u'Enter a valid VAT number.')
+ try:
+ vat_number = int(value)
+ except ValueError:
+ raise ValidationError(err_msg)
+ vat_number = str(vat_number).zfill(11)
+ check_digit = vat_number_check_digit(vat_number[0:10])
+ if not vat_number[10] == check_digit:
+ raise ValidationError(err_msg)
+ return smart_unicode(vat_number)
40 django/contrib/localflavor/it/util.py
View
@@ -0,0 +1,40 @@
+def ssn_check_digit(value):
+ "Calculate Italian social security number check digit."
+ ssn_even_chars = {
+ '0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9,
+ 'A': 0, 'B': 1, 'C': 2, 'D': 3, 'E': 4, 'F': 5, 'G': 6, 'H': 7, 'I': 8, 'J': 9,
+ 'K': 10, 'L': 11, 'M': 12, 'N': 13, 'O': 14, 'P': 15, 'Q': 16, 'R': 17, 'S': 18,
+ 'T': 19, 'U': 20, 'V': 21, 'W': 22, 'X': 23, 'Y': 24, 'Z': 25
+ }
+ ssn_odd_chars = {
+ '0': 1, '1': 0, '2': 5, '3': 7, '4': 9, '5': 13, '6': 15, '7': 17, '8': 19, '9': 21,
+ 'A': 1, 'B': 0, 'C': 5, 'D': 7, 'E': 9, 'F': 13, 'G': 15, 'H': 17, 'I': 19, 'J': 21,
+ 'K': 2, 'L': 4, 'M': 18, 'N': 20, 'O': 11, 'P': 3, 'Q': 6, 'R': 8, 'S': 12,
+ 'T': 14, 'U': 16, 'V': 10, 'W': 22, 'X': 25, 'Y': 24, 'Z': 23
+ }
+ # Chars from 'A' to 'Z'
+ ssn_check_digits = [chr(x) for x in range(65, 91)]
+
+ ssn = value.upper()
+ total = 0
+ for i in range(0,15):
+ try:
+ if i % 2 == 0:
+ total += ssn_odd_chars[ssn[i]]
+ else:
+ total += ssn_even_chars[ssn[i]]
+ except KeyError:
+ msg = "Character '%(char)s' is not allowed." % {'char': ssn[i]}
+ raise ValueError(msg)
+ return ssn_check_digits[total % 26]
+
+def vat_number_check_digit(vat_number):
+ "Calculate Italian VAT number check digit."
+ normalized_vat_number = str(vat_number).zfill(10)
+ total = 0
+ for i in range(0, 10, 2):
+ total += int(normalized_vat_number[i])
+ for i in range(1, 11, 2):
+ quotient , remainder = divmod(int(normalized_vat_number[i]) * 2, 10)
+ total += quotient + remainder
+ return str((10 - total % 10) % 10)
42 tests/regressiontests/forms/localflavor.py
View
@@ -633,7 +633,7 @@
>>> f.clean(' 00100')
Traceback (most recent call last):
...
-ValidationError: [u'Enter a zip code in the format XXXXX.']
+ValidationError: [u'Enter a valid zip code.']
# ITRegionSelect #############################################################
@@ -642,6 +642,46 @@
>>> w.render('regions', 'PMN')
u'<select name="regions">\n<option value="ABR">Abruzzo</option>\n<option value="BAS">Basilicata</option>\n<option value="CAL">Calabria</option>\n<option value="CAM">Campania</option>\n<option value="EMR">Emilia-Romagna</option>\n<option value="FVG">Friuli-Venezia Giulia</option>\n<option value="LAZ">Lazio</option>\n<option value="LIG">Liguria</option>\n<option value="LOM">Lombardia</option>\n<option value="MAR">Marche</option>\n<option value="MOL">Molise</option>\n<option value="PMN" selected="selected">Piemonte</option>\n<option value="PUG">Puglia</option>\n<option value="SAR">Sardegna</option>\n<option value="SIC">Sicilia</option>\n<option value="TOS">Toscana</option>\n<option value="TAA">Trentino-Alto Adige</option>\n<option value="UMB">Umbria</option>\n<option value="VAO">Valle d\u2019Aosta</option>\n<option value="VEN">Veneto</option>\n</select>'
+# ITSocialSecurityNumberField #################################################
+
+>>> from django.contrib.localflavor.it.forms import ITSocialSecurityNumberField
+>>> f = ITSocialSecurityNumberField()
+>>> f.clean('LVSGDU99T71H501L')
+u'LVSGDU99T71H501L'
+>>> f.clean('LBRRME11A01L736W')
+u'LBRRME11A01L736W'
+>>> f.clean('lbrrme11a01l736w')
+u'LBRRME11A01L736W'
+>>> f.clean('LBR RME 11A01 L736W')
+u'LBRRME11A01L736W'
+>>> f.clean('LBRRME11A01L736A')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid Social Security number.']
+>>> f.clean('%BRRME11A01L736W')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid Social Security number.']
+
+# ITVatNumberField ###########################################################
+
+>>> from django.contrib.localflavor.it.forms import ITVatNumberField
+>>> f = ITVatNumberField()
+>>> f.clean('07973780013')
+u'07973780013'
+>>> f.clean('7973780013')
+u'07973780013'
+>>> f.clean(7973780013)
+u'07973780013'
+>>> f.clean('07973780014')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid VAT number.']
+>>> f.clean('A7973780013')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid VAT number.']
+
# FIZipCodeField #############################################################
FIZipCodeField validates that the data is a valid FI zipcode.
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