fields.py

# -*- coding: utf-8 -*-

from django.core.exceptions import ValidationError
from django.forms.fields import Field, CharField, IntegerField
from jcconv import *

class HiraganaFiled(CharField):
    """
    >>> h = HiraganaFiled()
    >>> 'ひらがなはんかく' == h.to_python('ヒラガナﾊﾝｶｸ')
    True
    >>> h.validate('ひらがな')
    >>> try:
    ...     h.validate('ひら123がな')
    ... except:
    ...     print 'ok'
    ok
    >>> 'ひらがなぜんかく' == h.clean('ヒラガナｾﾞﾝｶｸ')
    True
    """
    def to_python(self, value):
        value = kata2hira(value)
        value = half2hira(value)
        return value

    def validate(self, value):
        if not check_hira(value):
            raise ValidationError(u'ひらがなで入力する必要があります。')

class KatakanaFiled(CharField):
    """
    >>> k = KatakanaFiled()
    >>> 'カタカナハンカク' == k.to_python('かたかなﾊﾝｶｸ')
    True
    >>> k.validate('カタカナ')
    >>> try:
    ...     k.validate('カタabcカナ')
    ... except:
    ...     print 'ok'
    ok
    >>> 'カタカナゼンカク' == k.clean('かたかなｾﾞﾝｶｸ')
    True
    """
    def to_python(self, value):
        value = hira2kata(value)
        value = half2kata(value)
        return value

    def validate(self, value):
        if not check_kata(value):
            raise ValidationError(u'カタカナで入力する必要があります。')

class HalfCharFiled(CharField):
    """
    >>> c = HalfCharFiled()
    >>> 'ほげ123Abc' == c.to_python('ほげ１２３Ａｂｃ')
    True
    >>> 'ほげ123Abc' == c.clean('ほげ１２３Ａｂｃ')
    True
    """
    def to_python(self, value):
        value = wide2half(value)
        return value

class HalfIntegerField(IntegerField):
    """
    >>> i = HalfIntegerField()
    >>> '123' == i.to_python('１２３')
    True
    >>> '123' == i.clean('１２３')
    True
    """
    def to_python(self, value):
        value = wide2half(value)
        return value


if __name__ == "__main__":
    import doctest
    doctest.testmod()