I am a Django newbie working with Django CBVs and having difficulty setting
initial values for my ModelForm. To give an overview, I am trying to learn
by creating a simple messaging app.
Here is my code:
models.py
---------------------------------------------------------
import datetime
from django.contrib.auth.models import User
from django.db import models
from django.utils.translation import ugettext_lazy as _
from django.utils import timezone
class Message(models.Model):
subject = models.CharField(_("Subject"), max_length=100)
body = models.TextField(_("Body"))
sender = models.ForeignKey(User, db_index=True,
related_name='sent_messages')
recipient = models.ForeignKey(User, db_index=True,
related_name='received_messages')
parent_msg = models.ForeignKey('self', related_name='next_messages',
null=True, blank=True)
forms.py
---------------------------------------------------
from django.forms import ModelForm
from .models import Message
class MessageForm(ModelForm):
class Meta:
model = Message
exclude = ('sender', 'recipient', 'parent_msg',)
views.py
--------------------------------------------------
class MessageCreateView(CreateView):
form_class = MessageForm
model = Message
template_name = 'messages/compose.html'
def form_valid(self, form):
form.instance.sender = self.request.user
return super(MessageCreateView, self).form_valid(form)
urls.py
---------------------------------------------------------------------------
...
url(r'^compose/(?P<recipient>[\w.@+-]+)/$', MessageCreateView.as_view(),
name='messages_compose_to'),
...
As you can see from the urls.py file, I am using the 'recipient' parameter
as such: http://localhost:8000/members/compose/someusername
Now my problem is that I wish to open the compose message view, and
initialize the recipient field by getting the username from the URL, then
using the username from the url to get User with that particular username,
and instantiate the form with it.
Where do I do this, in the view itself or in the form? Unless their is a
better way of how to handle this.
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