如何在Django中序列化dict？

Question

I can't figure out how to serialize cleaned_data of some form. The problem probably is, that this cleaned_data contains model objects . I didn't find anything touching this problem so I'm asking here.

Exception Value:
'dict' object has no attribute '_meta'

Is there some simple way or Django built-in function?

My cleaned_data:

{'notes': u'dsads', 'language_from': <Language: Slovak>, 'file': None, 'short_description': u'dsadsad', 'text_to_translate': u'dsads', 'delivery_date': datetime.date(1930, 1, 1)}

This is a formset cleaned_data:

[{'language': <Language: Magyar>, 'level': <Level: Standard level>}, 
 {'language': <Language: Russian>, 'level': <Level: Standard level>}, {}, {}, {}]

serializer.serialize(cleaned_data) does not works because there are models inside the cleaned_data .

Only way I probably figured out is to change all objects to it's primary keys and after deserialize get them from the database.

I want to serialize cleaned_data because I sending them to another view.

Answer 1

The Django way to do this is to use model_to_dict . This will serialize the model instance as a dictionary. Call this on each model instance respectively in you cleanded_data

from django.forms.models import model_to_dict

model_to_dict(model_instance)