DRF Serializer throws KeyError

[Ajit Gauli]

Hey guys,

         I'm working on a  django project that I started as a branch of an existing one. The person working on the master branch made some changes on my app models, and migrated those changes to the db which I'm using as well. I updated those models and serializers on my project, but my api is choking on those newly added fields giving me KeyError. Here's the stack trace.

KeyError at /api/stampede/jobs/

'flops'
Request Method: GET
Request URL: http://129.114.7.126:8000/api/stampede/jobs/?user=madhavg
Django Version: 1.6.5
Exception Type: KeyError
Exception Value: 'flops'

Exception Location: /usr/lib/python2.7/site-packages/rest_framework/serializers.py in get_fields, line 246
Python Executable: /bin/python
Python Version: 2.7.5
Python Path: ['/home/agauli/tacc_stats/tacc_stats/site',
 '/home/rodeo/tacc_stats',
 '/usr/lib64/python27.zip',
 '/usr/lib64/python2.7',
 '/usr/lib64/python2.7/plat-linux2',
 '/usr/lib64/python2.7/lib-tk',
 '/usr/lib64/python2.7/lib-old',
 '/usr/lib64/python2.7/lib-dynload',
 '/root/.local/lib/python2.7/site-packages',
 '/usr/lib64/python2.7/site-packages',
 '/usr/lib64/python2.7/site-packages/gtk-2.0',
 '/usr/lib/python2.7/site-packages',
 '/home/agauli/tacc_stats/tacc_stats/site/tacc_stats_site',
 '/home/agauli/tacc_stats/tacc_stats/site/tacc_stats_site/../']

Please share your ideas if you have come across similar situation. Thanks in advance. 

Ajit Gauli

[Xavier Ordoquy]

Hi,

You need to check you serializer fields listed still exist on the model.

Regards,

Xavier Ordoquy,

Linovia.

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[Ajit Gauli]

Xavier,

              Thanks for the reply. My model is updated, and it has all the fields that I mention in the serializer. What else could be the reason?

Ajit 

[Xavier Ordoquy]

At this point I think a detailed stack trace as well as the model and serializer code would be required to help further.

Regards,

Xavier Ordoquy,

Linovia.

[Liao Feng]

assume we get a serializer named UserSerializer,

we can check the fields declared in UserSerializer this way:

serializer=UserSerializer()
serializer.get_fields()

check whether `flops` in the returned dictionary.

在 2014年10月24日星期五UTC+8上午4时52分19秒，Ajit Gauli写道：