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Last active Dec 26, 2015
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import json
from django.shortcuts import _get_queryset
from django.http import HttpResponse
from app.exceptions.custom import JsonNotFound
# replacement for django.shortcuts.get_object_or_404()
# allows json to be returned with a 404 error
def get_object_or_json404(klass, *args, **kwargs):
queryset = _get_queryset(klass)
return queryset.get(*args, **kwargs)
except queryset.model.DoesNotExist:
raise JsonNotFound()
def render_to_json_response(context, **response_kwargs):
# returns a JSON response, transforming 'context' to make the payload
response_kwargs['content_type'] = 'application/json'
return HttpResponse(convert_context_to_json(context), **response_kwargs)
def convert_context_to_json(context):
# convert the context dictionary into a JSON object
# note: this is *EXTREMELY* naive; in reality, you'll need
# to do much more complex handling to ensure that arbitrary
# objects -- such as Django model instances or querysets
# -- can be serialized as JSON.
return json.dumps(context)
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