- June 13, 2008
- serialize json serializer
- 2 (after 2 ratings)
The Django JSON encoder already extends the
simplejson encoder a little; this extends it more and gives an example of how to go about further extension.
newserializers (see the community aggregator today) will supercede this, but until then, it's useful.
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from django.core.serializers.json import DjangoJSONEncoder from django.db.models.query import QuerySet def maybe_call(x): if callable(x): return x() return x class JSONEncoder(DjangoJSONEncoder): '''An extended JSON encoder to handle some additional cases. The Django encoder already deals with date/datetime objects. Additionally, this encoder uses an 'as_dict' or 'as_list' attribute or method of an object, if provided. It also makes lists from QuerySets. ''' def default(self, obj): if hasattr(obj, 'as_dict'): return maybe_call(obj.as_dict) elif hasattr(obj, 'as_list'): return maybe_call(obj.as_list) elif isinstance(obj, QuerySet): return list(obj) return super(JSONEncoder, self).default(obj) json_encode = JSONEncoder().encode
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