Using dynamic Choice Field in Django

choicefield, django, dynamic

Solution

You can populate them dynamically by overriding the init, basically the code will look like:

class NewForm(forms.Form):
    def __init__(self, choices, *args, **kwargs):
        super(NewForm, self).__init__(*args, **kwargs)
        self.fields["choices"] = forms.ChoiceField(choices=choices)

`NewForm(my_actual_choices)` or `NewForm(my_actual_choices, request.POST, request.FILES)` etc.

Problem

I have a `choiceField` in order to create a select field with some options. Something like this: ``` forms.py class NewForm(forms.Form): title = forms.CharField(max_length=69) parent = forms.ChoiceField(choices = CHOICE) ``` But I want to be able to create the options without having a predefined tuple (which is required by `ChoiceField`). Basically, I need to have access to request.user to fill some options tags according to each user, but I don't know if there is any way to use request in classes of forms.Form. An alternative would be to prepopulate the instance of `NewForm` via: ``` views.py form = NewForm(initial={'choices': my_actual_choices}) ``` but I have to add a dummy CHOICE to create NewForm and my_actual_choices doesn't seem to work anyway. I think a third way to solve this is to create a subclass of ChoiceField and redefined `save()` but I'm not sure how to go about doing this.

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