Re: errors while trying to add extra context (detailview, __getitem__)

On Fri, Feb 26, 2016 at 6:38 PM, Malik Rumi <malik.a.rumi@gmail.com> wrote:

OK, so maybe....MAYBE I've got this figured out. The problem is here:

https://docs.djangoproject.com/en/1.9/ref/urls/#django.conf.urls.url

I knew this, but note the examples still use the parens()

https://docs.djangoproject.com/en/1.9/ref/urls/#patterns

but that's what patterns is. It is a function. So it should have the parens. The problem is not the parens, but patterns() itself.

HOWEVER, I still have issues, if there are any night owls or people on the other side of the world who can help:

error msg:

Generic detail view CodeDetail must be called with either an object pk or a slug.

but I copied this straight out of the docs! All I did was changed the app names! See https://docs.djangoproject.com/en/1.9/topics/class-based-views/mixins/ 

"We'll rely on the default implementation of get_object() to fetch the correct Publisher object. However, we need to explicitly pass a queryset argument because otherwise the default implementation of get_object() would call get_queryset() which we have overridden to return Book objects instead of Publisher ones. " 

SingleObjectMixin looks for URL kwargs named 'pk' or 'slug' by default. There's been a fair bit of cross-talk about which URL's are actually the problem, but you only have one that would work for the view you are trying to call: url(r'^code/(?P<slug>[\w-]+)/$', CodeDetailView.as_view(), name='family'),

At this point I can't tell which URL you are talking about, so I don't know if you are executing/matching the right one. The error would indicate that you are matching just r'code/' without the (?P<slug>), so the view has no way to look up the correct object to return. 

-James

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