Demo site 500

[elena]

Following links on demo site return Server Error 500:
http://json-api.jerel.co/

       "blogs": "http://json-api.jerel.co/blogs",
       "entries": "http://json-api.jerel.co/entries",

Note other links work:

        "authors": "http://json-api.jerel.co/authors",
        "comments": "http://json-api.jerel.co/comments"

Cheers.

[mblayman]

Thanks, @elena. I believe this runs on the personal website of @jerel. If I had to venture a guess, the site is probably missing some database migrations that were recently added the demo project.

[jerel]

It's running on a private server. I'll try to take a look, probably an issue with the reset script or migrations

[jerel]

So, it's throwing ImportError: No module named polymorphic. Merely installing django-polymorphic doesn't fix it. Evidently there's a package missing from the requirements file. But does, or should, the demo even use polymorphism out of the box?

[mblayman]

@jerel, I believe that the polymorphic branch that was merged did update the demo project to use polymorphic models in some locations. I'm surprised (saddened?) that installing django-polymorphic doesn't solve the problem.

Do you have any details on what it is reporting after you install django-polymorphic? Did you get past the ImportError?

[jerel]

So, I've worked with this a bit and found the demo hadn't applied migrations correctly. The /blogs endpoint is working fine but /entries is throwing Could not resolve URL for hyperlinked relationship using view name "entry-relationships".

I'm out of time for the moment but hopefully that gets somebody else pointed in the right direction. You can replicate by checking out the develop branch and running django-admin.py runserver --settings=example.settings

[mblayman]

@leo-naeka or @astronouth7303, something is wrong with the demo site and I'm guessing it's related to the polymorphic changes. Could one of you take a quick look and see if you could figure out the problem? I'd hope to see the demo site working again before a release goes out.

[AstraLuma]

I have found a few bugs:

1. The example now requires packaging (example/serializers.py). I'm guessing this is the actual cause of the bug.
2. /entries produces ImproperlyConfigured at /entries: Could not resolve URL for hyperlinked relationship using view name "entry-relationships".
3. /projects produces AttributeError at /projects: 'list' object has no attribute '_meta'

[AstraLuma]

From @leo-naeka:

Actually the ImproperlyConfigured at /entries: Could not resolve URL for hyperlinked relationship using view name "entry-relationships". bug was introduced before the polymorphic feature merge: occurs in 629d1d6.