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

2 votes292 views1 answer
Open applications by python
Python
4 votes291 views1 answer
Flask image
Python Flask
9 votes300 views2 answers
Make string numeric pandas
Python
15 votes318 views4 answers
Float to int in python
Python
0 vote293 views1 answer
Python read column from csv
Python
0 vote335 views2 answers
Python suppress exponential notation
Python
4 votes292 views1 answer
How to make a custom icon for pygame
Python
0 vote329 views1 answer
Get current url with parameters url django
Python Django
0 vote281 views1 answer
"api_view" is not definedPylance
Python
0 vote275 views1 answer
How to skip the first line of a csv file
Python