Django default value for form

Question

I have a following model:

class Question(models.Model):
    section = models.ForeignKey(Section)
    description = models.TextField()
    answer = models.TextField(blank=True, null=True)
    author = models.ForeignKey(settings.AUTH_USER_MODEL)

Corresponding form is

class QuestionForm(forms.ModelForm):
    class Meta:
        model = Question
        fields = ('description', 'section', 'author')

My question is how can I pass to the form value of author? Author is currently logged user (request.user is not accessible).

Thank you.

pleasedontbelong · Accepted Answer · 2013-08-23 13:37:15Z

3

You could pass the user from the view to the form and ovewrite the __init__ method on form to change the initial value of your field:

view.py (using CBV) something like:

class SomethingView(FormView):
    def get_form_kwargs(self, *args, **kwargs):
        return dict(
            super(SomethingView, self).get_form_kwargs(*args, **kwargs),
            **{'user': self.request.user}
        )

forms.py something like:

class SomethingForm(forms.modelForm):
    def __init__(self, *args, **kwargs):
        self.user = kwargs.pop('user', None)
        self.fields['user'].initial = self.user.id
        super(SomethingForm, self).__init__(*args, **kwargs)

answered Aug 23, 2013 at 13:37

pleasedontbelong

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2 Comments

pleasedontbelong Over a year ago

this is if you want to change the initial value of a field... but since the user reference is stored in self.user, you can now use it everywhere on the form

Paul R Over a year ago

Thanks. This worked. Just needed to place super(SomethingForm, self).__init__(*args, **kwargs) before self.fields['user'].initial = self.user.id

Daniel Rosenthal · Accepted Answer · 2013-08-23 13:29:31Z

0

In your view you can pass an initial value to the form when you instantiate it. You can read more about it here: https://docs.djangoproject.com/en/dev/ref/forms/api/#dynamic-initial-values

answered Aug 23, 2013 at 13:29

Daniel Rosenthal

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Comments

kubus · Accepted Answer · 2013-08-23 13:53:44Z

0

If you don't want to allow user to set any other user as author of this question, you should set this field in a view and remove 'author' from form fields.

For example, if you use generic class based views:

class CreateQuestionView(generic.CreateView):
    model = Question
    form_class = QuestionForm

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super(CreateQuestionView, self).form_valid(form)

edited Aug 23, 2013 at 13:53

answered Aug 23, 2013 at 13:32

kubus

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