How do I turn MongoDB query into a JSON?

Question

for p in db.collection.find({\"test_set\":\"abc\"}):
    posts.append(p)
thejson = json.dumps({\'results\':posts})
return  HttpResponse(thejson, mimetype=\"application/j         


        

Answer 1

It's pretty easy to write a custom serializer which copes with the ObjectIds. Django already includes one which handles decimals and dates, so you can extend that:

from django.core.serializers.json import DjangoJSONEncoder
from bson import objectid

class MongoAwareEncoder(DjangoJSONEncoder):
    """JSON encoder class that adds support for Mongo objectids."""
    def default(self, o):
        if isinstance(o, objectid.ObjectId):
            return str(o)
        else:
            return super(MongoAwareEncoder, self).default(o)

Now you can just tell json to use your custom serializer:

thejson = json.dumps({'results':posts}, cls=MongoAwareEncoder)