On Wed, Jan 4, 2012 at 5:25 PM, sassman <[email protected]> wrote:
> Hi,
>
> i'm using Django Version 1.3.1, can anyone say me why is the value
> function in BoundField (FormField) makes a check if the value is
> callable?
>
>    def value(self):
>        """
>        Returns the value for this BoundField, using the initial value
> if
>        the form is not bound or the data otherwise.
>        """
>        if not self.form.is_bound:
>            data = self.form.initial.get(self.name,
> self.field.initial)
>            if callable(data):
>                data = data()
>
>
> I have a Field that encapsulates a Python Class, and this leads into a
> problem because the value (a class definition) will be instatiated at
> this time. But for a Dropdown field (wrapped by the TypedChoiceField
> Field) this is not a neccessary action.
>
> Can anyone say me what is the reason for having a datavalue callable
> and call it on a field?
>
> BR Sven
>

It is documented here:

https://docs.djangoproject.com/en/1.3/ref/forms/fields/#django.forms.Field.initial

Cheers

Tom

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