I'm currently having a problem with DetailView based views and
querysets being cached.
If I use a custom manager function for the DetailView queryset, such
as SampleModel.objects.published() below, the first request caches the
queryset and any objects added after are inaccessible - the queryset
gets cached and any new entries result in a 404.
Changing queryset to SampleModel.objects.all() results in no queryset
caching, new objects are immediately visible without having to reload
the webserver.
Is there something I'm missing here?
### models.py:
from django.db import models
import datetime
class SampleModelManager(models.Manager):
def published(self):
return self.get_query_set().filter(published=True,
date__lte=datetime.datetime.now())
class SampleModel(models.Model):
title = models.CharField(max_length=100, db_index=True)
date = models.DateTimeField(default=datetime.datetime.now,
db_index=True)
published = models.BooleanField(default=True, db_index=True)
objects = SampleModelManager()
def __unicode__(self):
return self.title
@models.permalink
def get_absolute_url(self):
return ('sample-model-detail', (), {
'pk': str(self.pk),
})
### urls.py:
from django.conf.urls.defaults import *
import views
urlpatterns = patterns('',
url(r'^(?P<pk>\d+)/$',
views.SampleModelDetailView.as_view(),
name='sample-model-detail'),
)
###views.py:
from django.views.generic import DetailView
from models import SampleModel
class SampleModelDetailView(DetailView):
queryset = SampleModel.objects.published()
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