How to pre-populate Django form with part of URL?

Question

I'm completely new to programming (Django), and I'm trying to pre-populate a django_messages form with a snippet of the URL.

For example, for a compose form at www.mywebsite.com/compose_root/Chris88, I want the "Recipient" field to be pre-populated with "Chris88".

Is there any way to do this? In urls.py, I have:

url(r'^compose_root/(<recipient>[\w.@+-]+)/$', compose, name='messages_compose_to'),

I already tried plugging in recipient as an initial in the "Recipient" form field, but it didn't work, so it might be easier just to pre-populate with an excerpt of the URL.

Help is much appreciated.

Can you post the code you were using to put recipient as initial data in the form? It should work if you use something like form = MyForm(initial={'Recipient':recipient}) — MBrizzle
– MBrizzle, Commented Aug 7, 2014 at 4:46
It gives me the NameError: name 'recipient' not defined, even though I have "recipient" in the Message model (which is imported). — user3916720
– user3916720, Commented Aug 7, 2014 at 5:24

Reiner Gerecke · Accepted Answer · 2014-08-07 13:25:36Z

1

Assuming you have a form that looks something like:

class New_form(Form.form):
    ... FormStuff
    recipient = Some Field

Add a view that looks like:

def compose_root(request,recipient):
     ...# View Stuff
     form = New_form(initial={"recipient": recipient})
     return render_to_response('form-template.html', {'form':form})

And in your form-template

{{form}}

edited Aug 7, 2014 at 13:25

Reiner Gerecke

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answered Aug 7, 2014 at 13:23

Adam W. Cooper

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Comments

jmark · Accepted Answer · 2023-04-09 06:02:29Z

0

Assuming you have a DjangoMessages Form class, you can modify the get_form(self) method. Get the form field and set its initial value to the url parameter recipient

class DjangoMessages(Form):

    def get_form(self):
        form = super().get_form()
        form.fields['recipient'].initial = self.kwargs['recipient']

edited Apr 9, 2023 at 6:02

answered Apr 9, 2023 at 6:00

jmark

12 bronze badges

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