QueryDict instance is immutable

[Grupo Django]

Hi!
I have created a form using newforms, and one field is author which I
want to fill using the current username, I did this:
request.POST['author']="Username I want"
and I got this error:
"QueryDict instance is immutable"
Ok, what should I do? I thought about create a hidden widget for this
field, but that's not secure enough.
Is there a way to do what I want?

Thank you!

[Mike Axiak]

Hello,

That particular QueryDict instance is immutable, so you won't get what
you want.
Try the following:
new_data = request.POST.copy()
new_data['author'] = "Username I want"

This will create a mutable instance and fill it with the correct data.
You can then use new_data in whatever context you were using
request.POST.

Cheers,
Michael Axiak

[limodou]

You can do like this:

old = request.POST._mutable
request.POST._mutable = True
for k, v in args.items():
request.POST[k] = v
request.POST._mutable = old

But except you have strong idea, I don't suggest that you do like
above. You can copy() it and the new instance can be changed.

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