Hi Knut,
Actually, what would help you here is custom model field + form field
+ widget.
For example, the following combination based on Babel (http://
babel.edgewall.org/) could be used:
class DecimalWidget(forms.TextInput):
def render(self, name, value, attrs=None):
locale=get_current_language()
if value is None: value = ""
if value and isinstance(value, basestring):
try:
value = parse_decimal(value, locale=locale)
except NumberFormatError:
pass
if value is not "" and not isinstance(value, basestring):
value = format_decimal(value, self.format, locale=locale)
return super(type(self), self).render(name, value, attrs)
class FloatField(forms.FloatField):
widget = DecimalWidget
def __init__(self, format=None, *args, **kwargs):
super(type(self), self).__init__(*args, **kwargs)
self.format = self.widget.format = format
def clean(self, value):
locale=get_current_language()
if value != "":
try:
value = force_unicode(parse_decimal(value,
locale=locale))
except NumberFormatError:
raise forms.ValidationError(self.error_messages
['invalid'])
return super(type(self), self).clean(value)
class LocalizedFloatField(models.FloatField):
def formfield(self, **kwargs):
defaults = {'form_class': FloatField}
defaults.update(kwargs)
return super(FloatField, self).formfield(**defaults)
Regards,
Aidas Bendoraitis
On Apr 17, 9:04 am, Knut Nesheim <knut.nesh...@mtab.se> wrote:
> Hi all,
>
> I have a model with several FloatFields. Based on this, ModelForm
> creates some form.FloatFields.These fields require the user to type
> '3.2' instead of '3,2', which is the custom here(Sweden). We need to
> allow the comma somehow, for obvious usability reasons.
>
> My first thought was to write a custom clean method on the form, which
> would do a string replace, but this isn't working. The FloatFields
> clean method is run before any custom method. If there's a comma in
> the field, that method will raise an exception and my custom method
> never gets called.
>
> Any ideas for a solution would be welcome.
>
> Thanks,
> Knut
> --
> Knut Nesheim | MTAB Transport & Spedition AB
> Box 20164 | SE-161 02 Bromma | Visiting address: Ranhammarsvägen 26
> Phone: +46 8 54 600 153
> E-mail: knut.nesh...@mtab.se | Web:www.mtab.se
>
> Vi utför alla uppdrag på grundval av NSAB 2000.
> All transactions are carried out according to our standard conditions
> covered by NSAB2000
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