Django form: what is the best way to modify posted data before validating?

Question

form = ContactForm(request.POST)

# how to change form fields\' values here?

if form.is_valid():
    message = form.cleaned_data[\'message\']

Is there

Answer 1

You could also try using request.query_params.

1. First, set the _mutable property of the query_params to True.

2. Change all the parameters you want.

   request.query_params._mutable = True
   request.quer_params['foo'] = 'foo'
   

The advantage here is you can avoid the overhead of using request.POST.copy().