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33 lines
994 B
33 lines
994 B
from django import forms
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from django.core.exceptions import ValidationError
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import re
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from decimal import Decimal, InvalidOperation
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class CurrencyInput (forms.TextInput):
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def render(self, name, value, attrs=None):
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if value != '':
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try:
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value = u"%.2f" % value
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except TypeError:
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pass
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return super(CurrencyInput, self).render(name, value, attrs)
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class CurrencyField (forms.RegexField):
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""" Represents a currency field for django forms... or something. """
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widget = CurrencyInput
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currencyRe = re.compile(r'^(\+|-)?[0-9]{1,5}([,\.][0-9][0-9]?)?$')
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def __init__(self, *args, **kwargs):
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super(CurrencyField, self).__init__(
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self.currencyRe, None, None, *args, **kwargs)
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def to_python(self, value):
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try:
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value = Decimal(value.replace(",", "."))
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except (ValueError, TypeError, InvalidOperation):
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raise ValidationError("Bitte gib eine Zahl ein")
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return value
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def clean(self, value):
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value = super(CurrencyField, self).clean(value)
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return Decimal(value)
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