Re: Choices as a callable.. but no parameters?

[Stephen J. Butler]

On Mon, Apr 20, 2015 at 9:45 PM, Vijay Khemlani  wrote:
> Overwrite the constructor of the form (__init__), pass the user or whatever
> parameters you may need and overwrite the choices of the field in the body
> of the method.

This is the same strategy I've used to filter ForeignKey fields on the
current user. If you're using class based views you should override
get_form_kwargs() to add the user parameter to the form's __init__().

It's a little trickier if you want to make this work in a ModelAdmin
subclass though. I don't see a similar method to override. What I've
done is to override ModelAdmin.get_form() like this:

def get_form(self, request, obj=None, **kwargs):
form_class = super(MyModelAdmin, self).get_form(request, obj, **kwargs)
class _Form(form_class):
def __init__(form_self, *args, **kwargs):
super(_Form, form_self).__init__(user=request.user, *args, **kwargs)
return _Form

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Re: Choices as a callable.. but no parameters?

[Vijay Khemlani]

Overwrite the constructor of the form (__init__), pass the user or whatever
parameters you may need and overwrite the choices of the field in the body
of the method.

On Mon, Apr 20, 2015 at 10:56 PM, Steve Hiemstra 
wrote:

> I am trying to build a form with dynamic choices. e.g., the choices should
> depend on the user.
>
> https://docs.djangoproject.com/en/1.8/ref/forms/fields/#choicefield
>
> Says choices may now be a callable, and sure enough it is called in `
> django/forms/fields.py(818)` – but without any parameters.
>
> How can I get access to the current user, view, or any bit of context.
>
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> .
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Choices as a callable.. but no parameters?

[Steve Hiemstra]

I am trying to build a form with dynamic choices. e.g., the choices should 
depend on the user.

https://docs.djangoproject.com/en/1.8/ref/forms/fields/#choicefield

Says choices may now be a callable, and sure enough it is called in `
django/forms/fields.py(818)` – but without any parameters.

How can I get access to the current user, view, or any bit of context.

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