[Solved]-Django rest framework serializer is valid always false

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26👍

After having the same problem I’d like to highlight the solution offered by @Andrea Corbellini in the comments section:

print(s.errors)

Will return a dictionary containing the fields: reason for fail. In my case this looked like:

{
'start_date': [ErrorDetail(string='Expected a date but got a datetime.', code='datetime')],
'end_date': [ErrorDetail(string='Expected a date but got a datetime.', code='datetime')],
'client': [ErrorDetail(string='Incorrect type. Expected pk value, received Client.', code='incorrect_type')]
}

I found this absolutely invaluable.

👤Preston

8👍

s = UserSerializer(data=u)

should be:

s = UserSerializer(data={"userId"="user", "email"="asd@gmail.com"})

The serialization process (from the Model to the dictionary) doesn’t require a call to is_valid:

s = UserSerializer(instance=u)
s.data

The deserialization process (from dict to Model) doesn’t accept Model:

s = UserSerializer(data={"userId"="user", "email"="asd@gmail.com"})
s.is_valid()
s.validated_data
👤Linovia

2👍

If you want to see exception details use raise_exception argument as True i.e

obj.is_valid(raise_exception=True)

👤Furkan Siddiqui

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