Django newbie - NoReverseMatch errors
Just started with Django, but hit the wall a bit - I decided to experiment with writing a simple blog mechanism by accessing the django-basic-apps library.
In the blog /urls.py I have this post to map an actual post by date, eg. Blog / 2009 / Aug / 01 / test post
urlpatterns = patterns('',
url(r'^(?P<year>\d{4})/(?P<month>\w{3})/(?P<day>\d{1,2})/(?P<slug>[-\w]+)/$', 'blog.views.post_detail'),
...
And the view for rendering the message:
def post_detail(request, slug, year, month, day, **kwargs):
return date_based.object_detail(
request,
year = year,
month = month,
day = day,
date_field = 'created_at',
slug = slug,
queryset = Content.objects.filter(published=True),
**kwargs
)
In the model, I have implemented so that on the blog homepage I can click on the post title to view it: get_absolute_url
class Content(models.Model):
...
@permalink
def get_absolute_url(self):
return ('blog.views.post_detail', (), {
'slug': self.slug,
'year': self.created_at.year,
'month': self.created_at.strftime('%b').lower(),
'day': self.created_at.day
})
Finally, the post list on the homepage assumes that the permalink will be inserted in the header:
{% for content in object_list %}
<div class="content_list">
<h3 class="content_title"><a href="{{ content.get_absolute_url }}">{{ content.title }}</a></h3>
<p class="content_date">{{ content.published_at|date:"Y F d"}}</p>
<p class="content_body">{{ content.body }}</p>
<p class="content_footer">updated by {{ content.author }} at {{ content.updated_at|timesince }} ago</p>
</div>
{% endfor %}
However, the link shows up as empty and when I try to call content.get_absolute_url()
from django shell the error occurs:
NoReverseMatch: Reverse for '<function post_detail at 0xa3d59cc>' with arguments '()' and keyword arguments '{'year': 2009, 'slug': u'another_test', 'day': 15, 'month': 'aug'}' not found.
Edit: Turns out this is a Python namespace issue (see below). But anyway, was my urls.py as shown above wrong?
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Googling for other newbies to the Django tutorials and got the idea of putting all urls in the parent urls.py folder and that seems to fix the problem. :) So at the end my main urls.py now has:
from djangoblog.blog import views
urlpatterns = patterns('',
(r'^blog/(?P<year>\d{4})/(?P<month>\w{3})/(?P<day>\d{1,2})/(?P<slug>[-\w]+)/$',
views.post_detail),
(r'^blog/(?P<year>\d{4})/(?P<month>\w{3})/(?P<day>\d{1,2})/$',
views.post_archive_day),
...
Edit: Edit: After 2 days of random hacking, I luckily realize that URLconfs + django looks much better. :) I moved the templates back to blog / urls.py, got rid of all custom date based views and called them from urls.py instead and correctly named templates for elements to be relabeled.
urls.py with named template:
from blog import views
...
(r'(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d{1,2})/(?P<slug>[-\w]+)/$',
'object_detail', dict(info_dict, slug_field='slug', month_format='%m'),
'post_detail'),
...
(r'category/(?P<slug>[-\w]+)/$', views.category_detail),
models.py:
class Post:
@permalink
def get_absolute_url(self):
return ('post_detail', (), {
....
class Category:
@permalink
def get_absolute_url(self):
return ('blog.views.category_detail', (), {'slug': self.slug})
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