Django snippet 800

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

Source: djangosnippets.org

Similar codes

0 vote238 views1 answer
Dynamic footer in django
Python Django
1 vote213 views1 answer
Django login redirect
Python Django
0 vote240 views1 answer
Django sign up
Python Django
2 votes230 views1 answer
Django flush database
Python Django
1 vote244 views1 answer
Django model query join
Python Django
0 vote236 views1 answer
Static files not loading 404 error django
Python Django
1 vote321 views1 answer
Backup django db from one database to another
Python Django
0 vote233 views3 answers
How to create a User and User profile in django rest framework
Python Django
0 vote252 views2 answers
Extract email address using expression in django
Python Django
2 votes179 views2 answers
Django admin actions
Python Django