Captured URL parameters in form

Question

I am using Userena and I am trying to capture URL parameters and get them to my form but I\'m lost how to do this.

What I would like to do in my template is:

Answer 1

You can access the url in your template using -

{% request.get_full_path %}

(see the docs for more info).

However if you just want to get the planslug variable then pass it from the view to the template and access it in the template (it's available in the view because it's a named parameter in the url) -

def signup(request, planslug=None):
    #
    render(request, 'your_template.html', {'planslug':planslug}

and then in your template you get it with -

{% planslug %}

If you're using class based views then you'll need to override get_context_data to add the planslug variable to your context before you pass it to the template-

def get_context_data(self, *args, **kwargs):
    context = super(get_context_data, self).get_context_data(*args, **kwargs)
    context['planslug'] = self.kwargs['planslug']
    return context

Answer 2

If you use class based views, you can overwrite the def get_form_kwargs() method of the FormMixin class. Here you can pass any parameters you need to your form class.

in urls.py:

url(r'^create/something/(?P<foo>.*)/$', MyCreateView.as_view(), name='my_create_view'),

in views.py:

class MyCreateView(CreateView):
    form_class = MyForm
    model = MyModel

    def get_form_kwargs(self):
        kwargs = super( MyCreateView, self).get_form_kwargs()
        # update the kwargs for the form init method with yours
        kwargs.update(self.kwargs)  # self.kwargs contains all url conf params
        return kwargs

in forms.py:

class MyForm(forms.ModelForm):

    def __init__(self, foo=None, *args, **kwargs)
        # we explicit define the foo keyword argument, cause otherwise kwargs will 
        # contain it and passes it on to the super class, who fails cause it's not
        # aware of a foo keyword argument.
        super(MyForm, self).__init__(*args, **kwargs)
        print foo  # prints the value of the foo url conf param

hope this helps :-)