Forest Bond wrote:
> On Sun, Jul 15, 2007 at 02:59:57PM -0500, Carl Karsten wrote:
>> How can I use a method as a view? (so that I can subclass and extend later.)
>>
>> foo works, the other 2 give errors:
>>
>> # msg/urls.py
>> from django.conf.urls.defaults import *
>> urlpatterns = patterns('msg.views',
>> (r'^detail/(?P<object_id>[-\w]+)/$', 'foo'),
>> (r'^detail/x/(?P<object_id>[-\w]+)/$', 'MsgViews.message_detail'),
>> (r'^detail/y/(?P<object_id>[-\w]+)/$', MsgViews.message_detail),
>> )
>
> Try this:
>
> --------------------------------------------------------------------------------
> from django.conf.urls.defaults import *
>
> msg_views = MsgViews()
>
> urlpatterns = patterns('msg.views',
> (r'^detail/(?P<object_id>[-\w]+)/$', 'foo'),
> (r'^detail/x/(?P<object_id>[-\w]+)/$', msg_views.message_detail),
> (r'^detail/y/(?P<object_id>[-\w]+)/$', msg_views.message_detail),
> )
That works,
Thanks.
> --------------------------------------------------------------------------------
>
> Alternatively, you can make message_detail a static method:
>
> --------------------------------------------------------------------------------
> class MsgViews(object):
>
> @static_method
> def message_detail(request, object_id=None):
> m=get_object_or_404(Message, pk=object_id)
> return render_to_response('message_detail.html', {'message': m})
> --------------------------------------------------------------------------------
>
> I'm not even sure if this sort of thing is possible, but it might be:
>
> --------------------------------------------------------------------------------
> class MsgViews(object):
>
> @static_method
> def __call__(request, object_id=None):
> m=get_object_or_404(Message, pk=object_id)
> return render_to_response('message_detail.html', {'message': m})
> --------------------------------------------------------------------------------
>
error: name 'static_method' is not defined
> The only reason I can think of for doing that is that you wouldn't have to
> import MsgViews in your urls.py, you could just specify a string.
>
> Now, after all that, I'm still a little confused as to why you would want to
> do
> all of this? You say so that you can extend your view functions, but classes
> are extensible because their methods can be replaced, and you already _can_
> replace plain view functions...
Classes also can call self.other method, and the code they are extending. Hmm,
now that I think about it, you may have a point. I'll leave it as is for now,
but if I have any more problems I will probably go back to module.function.
My overall goal is to figure out how to make components that can be moved
between django apps/sites. I kinda have models working, but im gonna burn for
using the same name for both parent and subclass.
# msg/model.py
from django.db import models
from django.contrib.auth.models import User
class Message(models.Model):
to = models.ForeignKey(User, related_name = "messages_received")
sender = models.ForeignKey(User, related_name = "messages_sent")
subject = models.CharField(maxlength=50)
sent = models.DateTimeField(auto_now_add=True)
recieved = models.DateTimeField(null=True)
read = models.BooleanField(default=False)
body = models.TextField()
def __str__(self):
return self.subject
# class Admin:
# list_display = ('sent', 'to', 'sender', 'subject')
class Meta:
db_table = 'message'
# core/models.py
import msg.models
class Message(msg.models.Message):
status = models.CharField(maxlength=1, blank=True)
class Admin:
list_display = ('sent', 'to', 'sender', 'subject')
Carl K
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