.. _ref-contrib-localflavor:

==========================
The "local flavor" add-ons
==========================

.. module:: django.contrib.localflavor
    :synopsis: A collection of various Django snippets that are useful only for
               a particular country or culture.

Following its "batteries included" philosophy, Django comes with assorted
pieces of code that are useful for particular countries or cultures. These are
called the "local flavor" add-ons and live in the
:mod:`django.contrib.localflavor` package.

Inside that package, country- or culture-specific code is organized into
subpackages, named using `ISO 3166 country codes`_.

Most of the ``localflavor`` add-ons are localized form components deriving
from the :ref:`forms <topics-forms-index>` framework -- for example, a
:class:`~django.contrib.localflavor.us.forms.USStateField` that knows how to
validate U.S. state abbreviations, and a
:class:`~django.contrib.localflavor.fi.forms.FISocialSecurityNumber` that
knows how to validate Finnish social security numbers.

To use one of these localized components, just import the relevant subpackage.
For example, here's how you can create a form with a field representing a
French telephone number::

    from django import forms
    from django.contrib.localflavor.fr.forms import FRPhoneNumberField

    class MyForm(forms.Form):
        my_french_phone_no = FRPhoneNumberField()

Supported countries
===================

Countries currently supported by :mod:`~django.contrib.localflavor` are:

    * Argentina_
    * Australia_
    * Austria_
    * Brazil_
    * Canada_
    * Chile_
    * Czech_
    * Finland_
    * France_
    * Germany_
    * Iceland_
    * India_
    * Italy_
    * Japan_
    * Mexico_
    * `The Netherlands`_
    * Norway_
    * Peru_
    * Poland_
    * Romania_
    * Slovakia_
    * `South Africa`_
    * Spain_
    * Switzerland_
    * `United Kingdom`_
    * `United States of America`_

The ``django.contrib.localflavor`` package also includes a ``generic`` subpackage,
containing useful code that is not specific to one particular country or culture.
Currently, it defines date, datetime and split datetime input fields based on
those from :ref:`forms <topics-forms-index>`, but with non-US default formats.
Here's an example of how to use them::

    from django import forms
    from django.contrib.localflavor import generic

    class MyForm(forms.Form):
        my_date_field = generic.forms.DateField()

.. _ISO 3166 country codes: http://www.iso.org/iso/country_codes/iso_3166_code_lists/english_country_names_and_code_elements.htm
.. _Argentina: `Argentina (ar)`_
.. _Australia: `Australia (au)`_
.. _Austria: `Austria (at)`_
.. _Brazil: `Brazil (br)`_
.. _Canada: `Canada (ca)`_
.. _Chile: `Chile (cl)`_
.. _Czech: `Czech (cz)`_
.. _Finland: `Finland (fi)`_
.. _France: `France (fr)`_
.. _Germany: `Germany (de)`_
.. _The Netherlands: `The Netherlands (nl)`_
.. _Iceland: `Iceland (is\_)`_
.. _India: `India (in\_)`_
.. _Italy: `Italy (it)`_
.. _Japan: `Japan (jp)`_
.. _Mexico: `Mexico (mx)`_
.. _Norway: `Norway (no)`_
.. _Peru: `Peru (pe)`_
.. _Poland: `Poland (pl)`_
.. _Romania: `Romania (ro)`_
.. _Slovakia: `Slovakia (sk)`_
.. _South Africa: `South Africa (za)`_
.. _Spain: `Spain (es)`_
.. _Switzerland: `Switzerland (ch)`_
.. _United Kingdom: `United Kingdom (uk)`_
.. _United States of America: `United States of America (us)`_

Adding flavors
==============

We'd love to add more of these to Django, so please `create a ticket`_ with
any code you'd like to contribute. One thing we ask is that you please use
Unicode objects (``u'mystring'``) for strings, rather than setting the encoding
in the file. See any of the existing flavors for examples.

.. _create a ticket: http://code.djangoproject.com/simpleticket

Argentina (``ar``)
=============================================

.. class:: ar.forms.ARPostalCodeField

    A form field that validates input as either a classic four-digit Argentinian
    postal code or a CPA_.

.. _CPA: http://www.correoargentino.com.ar/consulta_cpa/home.php

.. class:: ar.forms.ARDNIField

    A form field that validates input as a Documento Nacional de Identidad (DNI)
    number.

.. class:: ar.forms.ARCUITField

    A form field that validates input as a Codigo Unico de Identificacion
    Tributaria (CUIT) number.

.. class:: ar.forms.ARProvinceSelect

    A ``Select`` widget that uses a list of Argentina's provinces and autonomous
    cities as its choices.

Australia (``au``)
=============================================

.. class:: au.forms.AUPostCodeField

    A form field that validates input as an Australian postcode.

.. class:: au.forms.AUPhoneNumberField

    A form field that validates input as an Australian phone number. Valid numbers
    have ten digits.

.. class:: au.forms.AUStateSelect

    A ``Select`` widget that uses a list of Australian states/territories as its
    choices.

Austria (``at``)
================

.. class:: at.forms.ATZipCodeField

    A form field that validates its input as an Austrian zip code.

.. class:: at.forms.ATStateSelect

    A ``Select`` widget that uses a list of Austrian states as its choices. 

.. class:: at.forms.ATSocialSecurityNumberField

    A form field that validates its input as an Austrian social security number.

Brazil (``br``)
===============

.. class:: br.forms.BRPhoneNumberField

    A form field that validates input as a Brazilian phone number, with the format
    XX-XXXX-XXXX.

.. class:: br.forms.BRZipCodeField

    A form field that validates input as a Brazilian zip code, with the format
    XXXXX-XXX.

.. class:: br.forms.BRStateSelect

    A ``Select`` widget that uses a list of Brazilian states/territories as its
    choices.

Canada (``ca``)
===============

.. class:: ca.forms.CAPhoneNumberField

    A form field that validates input as a Canadian phone number, with the format
    XXX-XXX-XXXX.

.. class:: ca.forms.CAPostalCodeField

    A form field that validates input as a Canadian postal code, with the format
    XXX XXX.

.. class:: ca.forms.CAProvinceField

    A form field that validates input as a Canadian province name or abbreviation.

.. class:: ca.forms.CASocialInsuranceNumberField

    A form field that validates input as a Canadian Social Insurance Number (SIN).
    A valid number must have the format XXX-XXX-XXX and pass a `Luhn mod-10
    checksum`_.

.. _Luhn mod-10 checksum: http://en.wikipedia.org/wiki/Luhn_algorithm

.. class:: ca.forms.CAProvinceSelect

    A ``Select`` widget that uses a list of Canadian provinces and territories as
    its choices.

Chile (``cl``)
==============

.. class:: cl.forms.CLRutField

    A form field that validates input as a Chilean national identification number
    ('Rol Unico Tributario' or RUT). The valid format is XX.XXX.XXX-X.

.. class:: cl.forms.CLRegionSelect

    A ``Select`` widget that uses a list of Chilean regions (Regiones) as its
    choices.

Czech (``cz``)
==============

.. class:: cz.forms.CZPostalCodeField

    A form field that validates input as a Czech postal code. Valid formats
    are XXXXX or XXX XX, where X is a digit.

.. class:: cz.forms.CZBirthNumberField

    A form field that validates input as a Czech Birth Number.
    A valid number must be in format XXXXXX/XXXX (slash is optional).

.. class:: cz.forms.CZICNumberField

    A form field that validates input as a Czech IC number field.

.. class:: cz.forms.CZRegionSelect

    A ``Select`` widget that uses a list of Czech regions as its choices.

Finland (``fi``)
================

.. class:: fi.forms.FISocialSecurityNumber

    A form field that validates input as a Finnish social security number.

.. class:: fi.forms.FIZipCodeField

    A form field that validates input as a Finnish zip code. Valid codes
    consist of five digits.

.. class:: fi.forms.FIMunicipalitySelect

    A ``Select`` widget that uses a list of Finnish municipalities as its
    choices.

France (``fr``)
===============

.. class:: fr.forms.FRPhoneNumberField

    A form field that validates input as a French local phone number. The
    correct format is 0X XX XX XX XX. 0X.XX.XX.XX.XX and 0XXXXXXXXX validate
    but are corrected to 0X XX XX XX XX.

.. class:: fr.forms.FRZipCodeField

    A form field that validates input as a French zip code. Valid codes
    consist of five digits.

.. class:: fr.forms.FRDepartmentSelect

    A ``Select`` widget that uses a list of French departments as its choices.

Germany (``de``)
================

.. class:: de.forms.DEIdentityCardNumberField

    A form field that validates input as a German identity card number
    (Personalausweis_). Valid numbers have the format
    XXXXXXXXXXX-XXXXXXX-XXXXXXX-X, with no group consisting entirely of zeroes.

.. _Personalausweis: http://de.wikipedia.org/wiki/Personalausweis

.. class:: de.forms.DEZipCodeField

    A form field that validates input as a German zip code. Valid codes
    consist of five digits.

.. class:: de.forms.DEStateSelect

    A ``Select`` widget that uses a list of German states as its choices.

The Netherlands (``nl``)
========================

.. class:: nl.forms.NLPhoneNumberField

    A form field that validates input as a Dutch telephone number.

.. class:: nl.forms.NLSofiNumberField

    A form field that validates input as a Dutch social security number
    (SoFI/BSN).

.. class:: nl.forms.NLZipCodeField

    A form field that validates input as a Dutch zip code.

.. class:: nl.forms.NLProvinceSelect

    A ``Select`` widget that uses a list of Dutch provinces as its list of
    choices.

Iceland (``is_``)
=================

.. class:: is_.forms.ISIdNumberField

    A form field that validates input as an Icelandic identification number
    (kennitala). The format is XXXXXX-XXXX.

.. class:: is_.forms.ISPhoneNumberField

    A form field that validates input as an Icelandtic phone number (seven
    digits with an optional hyphen or space after the first three digits).

.. class:: is_.forms.ISPostalCodeSelect

    A ``Select`` widget that uses a list of Icelandic postal codes as its
    choices.

India (``in_``)
===============

.. class:: in.forms.INStateField

    A form field that validates input as an Indian state/territory name or
    abbreviation. Input is normalized to the standard two-letter vehicle
    registration abbreviation for the given state or territory.

.. class:: in.forms.INZipCodeField

    A form field that validates input as an Indian zip code, with the
    format XXXXXXX.

.. class:: in.forms.INStateSelect

    A ``Select`` widget that uses a list of Indian states/territories as its
    choices.

Italy (``it``)
==============

.. class:: it.forms.ITSocialSecurityNumberField

    A form field that validates input as an Italian social security number
    (`codice fiscale`_).

.. _codice fiscale: http://www.agenziaentrate.it/ilwwcm/connect/Nsi/Servizi/Codice+fiscale+-+tessera+sanitaria/NSI+Informazioni+sulla+codificazione+delle+persone+fisiche

.. class:: it.forms.ITVatNumberField

    A form field that validates Italian VAT numbers (partita IVA).

.. class:: it.forms.ITZipCodeField

    A form field that validates input as an Italian zip code. Valid codes
    must have five digits.

.. class:: it.forms.ITProvinceSelect

    A ``Select`` widget that uses a list of Italian provinces as its choices.

.. class:: it.forms.ITRegionSelect

    A ``Select`` widget that uses a list of Italian regions as its choices.

Japan (``jp``)
==============

.. class:: jp.forms.JPPostalCodeField

    A form field that validates input as a Japanese postcode. It accepts seven
    digits, with or without a hyphen.

.. class:: jp.forms.JPPrefectureSelect

    A ``Select`` widget that uses a list of Japanese prefectures as its choices.

Mexico (``mx``)
===============

.. class:: mx.forms.MXStateSelect

    A ``Select`` widget that uses a list of Mexican states as its choices.

Norway (``no``)
===============

.. class:: no.forms.NOSocialSecurityNumber

    A form field that validates input as a Norwegian social security number
    (personnummer_).

.. _personnummer: http://no.wikipedia.org/wiki/Personnummer

.. class:: no.forms.NOZipCodeField

    A form field that validates input as a Norwegian zip code. Valid codes
    have four digits.

.. class:: no.forms.NOMunicipalitySelect

    A ``Select`` widget that uses a list of Norwegian municipalities (fylker) as
    its choices.

Peru (``pe``)
=============

.. class:: pt.forms.PEDNIField

    A form field that validates input as a DNI (Peruvian national identity)
    number.

.. class:: pt.forms.PERUCField

    A form field that validates input as an RUC (Registro Unico de
    Contribuyentes) number. Valid RUC numbers have 11 digits.

.. class:: pt.forms.PEDepartmentSelect

    A ``Select`` widget that uses a list of Peruvian Departments as its choices.

Poland (``pl``)
===============

.. class:: pl.forms.PLNationalIdentificationNumberField

    A form field that validates input as a Polish national identification number
    (PESEL_).

.. _PESEL: http://en.wikipedia.org/wiki/PESEL

.. class:: pl.forms.PLNationalBusinessRegisterField

    A form field that validates input as a Polish National Official Business
    Register Number (REGON_), having either seven or nine digits. The checksum
    algorithm used for REGONs is documented at
    http://wipos.p.lodz.pl/zylla/ut/nip-rego.html.

.. _REGON: http://www.stat.gov.pl/bip/regon_ENG_HTML.htm

.. class:: pl.forms.PLPostalCodeField

    A form field that validates input as a Polish postal code. The valid format
    is XX-XXX, where X is a digit.

.. class:: pl.forms.PLTaxNumberField

    A form field that validates input as a Polish Tax Number (NIP). Valid
    formats are XXX-XXX-XX-XX or XX-XX-XXX-XXX. The checksum algorithm used
    for NIPs is documented at http://wipos.p.lodz.pl/zylla/ut/nip-rego.html.

.. class:: pl.forms.PLAdministrativeUnitSelect

    A ``Select`` widget that uses a list of Polish administrative units as its
    choices.

.. class:: pl.forms.PLVoivodeshipSelect

    A ``Select`` widget that uses a list of Polish voivodeships (administrative
    provinces) as its choices.

Romania (``ro``)
================

.. class:: ro.forms.ROCIFField

    A form field that validates Romanian fiscal identification codes (CIF). The
    return value strips the leading RO, if given.

.. class:: ro.forms.ROCNPField

    A form field that validates Romanian personal numeric codes (CNP).

.. class:: ro.forms.ROCountyField

    A form field that validates its input as a Romanian county (judet) name or
    abbreviation. It normalizes the input to the standard vehicle registration
    abbreviation for the given county. This field will only accept names written
    with diacritics; consider using ROCountySelect as an alternative.

.. class:: ro.forms.ROCountySelect

    A ``Select`` widget that uses a list of Romanian counties (judete) as its
    choices.

.. class:: ro.forms.ROIBANField

    A form field that validates its input as a Romanian International Bank 
    Account Number (IBAN). The valid format is ROXX-XXXX-XXXX-XXXX-XXXX-XXXX,
    with or without hyphens.

.. class:: ro.forms.ROPhoneNumberField

    A form field that validates Romanian phone numbers, short special numbers
    excluded.

.. class:: ro.forms.ROPostalCodeField

    A form field that validates Romanian postal codes.

Slovakia (``sk``)
=================

.. class:: sk.forms.SKPostalCodeField

    A form field that validates input as a Slovak postal code. Valid formats
    are XXXXX or XXX XX, where X is a digit.

.. class:: sk.forms.SKDistrictSelect

    A ``Select`` widget that uses a list of Slovak districts as its choices.

.. class:: sk.forms.SKRegionSelect

    A ``Select`` widget that uses a list of Slovak regions as its choices.

South Africa (``za``)
=====================

.. class:: za.forms.ZAIDField

    A form field that validates input as a South African ID number. Validation
    uses the Luhn checksum and a simplistic (i.e., not entirely accurate) check
    for birth date.

.. class:: za.forms.ZAPostCodeField

    A form field that validates input as a South African postcode. Valid
    postcodes must have four digits.

Spain (``es``)
==============

.. class:: es.forms.ESIdentityCardNumberField

    A form field that validates input as a Spanish NIF/NIE/CIF (Fiscal
    Identification Number) code.

.. class:: es.forms.ESCCCField

    A form field that validates input as a Spanish bank account number (Codigo
    Cuenta Cliente or CCC). A valid CCC number has the format
    EEEE-OOOO-CC-AAAAAAAAAA, where the E, O, C and A digits denote the entity,
    office, checksum and account, respectively. The first checksum digit
    validates the entity and office. The second checksum digit validates the
    account. It is also valid to use a space as a delimiter, or to use no
    delimiter.

.. class:: es.forms.ESPhoneNumberField

    A form field that validates input as a Spanish phone number. Valid numbers
    have nine digits, the first of which is 6, 8 or 9.

.. class:: es.forms.ESPostalCodeField

    A form field that validates input as a Spanish postal code. Valid codes
    have five digits, the first two being in the range 01 to 52, representing
    the province.

.. class:: es.forms.ESProvinceSelect

    A ``Select`` widget that uses a list of Spanish provinces as its choices.

.. class:: es.forms.ESRegionSelect

    A ``Select`` widget that uses a list of Spanish regions as its choices.

Switzerland (``ch``)
====================

.. class:: ch.forms.CHIdentityCardNumberField

    A form field that validates input as a Swiss identity card number.
    A valid number must confirm to the X1234567<0 or 1234567890 format and
    have the correct checksums -- see http://adi.kousz.ch/artikel/IDCHE.htm.

.. class:: ch.forms.CHPhoneNumberField

    A form field that validates input as a Swiss phone number. The correct
    format is 0XX XXX XX XX. 0XX.XXX.XX.XX and 0XXXXXXXXX validate but are
    corrected to 0XX XXX XX XX.

.. class:: ch.forms.CHZipCodeField

    A form field that validates input as a Swiss zip code. Valid codes
    consist of four digits.

.. class:: ch.forms.CHStateSelect

    A ``Select`` widget that uses a list of Swiss states as its choices.

United Kingdom (``uk``)
=======================

.. class:: uk.forms.UKPostcodeField

    A form field that validates input as a UK postcode. The regular
    expression used is sourced from the schema for British Standard BS7666
    address types at http://www.govtalk.gov.uk/gdsc/schemas/bs7666-v2-0.xsd.

.. class:: uk.forms.UKCountySelect

    A ``Select`` widget that uses a list of UK counties/regions as its choices.

.. class:: uk.forms.UKNationSelect

    A ``Select`` widget that uses a list of UK nations as its choices.

United States of America (``us``)
=================================

.. class:: us.forms.USPhoneNumberField

    A form field that validates input as a U.S. phone number.

.. class:: us.forms.USSocialSecurityNumberField

    A form field that validates input as a U.S. Social Security Number (SSN).
    A valid SSN must obey the following rules:

        * Format of XXX-XX-XXXX
        * No group of digits consisting entirely of zeroes
        * Leading group of digits cannot be 666
        * Number not in promotional block 987-65-4320 through 987-65-4329
        * Number not one known to be invalid due to widespread promotional
          use or distribution (e.g., the Woolworth's number or the 1962
          promotional number)

.. class:: us.forms.USStateField

    A form field that validates input as a U.S. state name or abbreviation. It
    normalizes the input to the standard two-letter postal service abbreviation
    for the given state.

.. class:: us.forms.USZipCodeField

    A form field that validates input as a U.S. ZIP code. Valid formats are
    XXXXX or XXXXX-XXXX.

.. class:: us.forms.USStateSelect

    A form ``Select`` widget that uses a list of U.S. states/territories as its
    choices.

.. class:: us.models.PhoneNumberField

    A :class:`CharField` that checks that the value is a valid U.S.A.-style phone
    number (in the format ``XXX-XXX-XXXX``).

.. class:: us.models.USStateField

    A model field that forms represent as a ``forms.USStateField`` field and
    stores the two-letter U.S. state abbreviation in the database.
