Validating a serializer whose source is model data

[David Jackson]

I have a ModelSerializer that I wish to require certain fields, even though it is possible for the model it is based on to have null values for those fields.

However, I cannot instantiate a serializer like this:

`s = MySerializer(model_instance)`

and then call `s.is_valid()` since that method only works if I initialized the serializer with a dictionary.

If I just create the serializer and grab the data from it without attempting to call is_valid, it does not respect the constraints in the serializer itself.

Any suggestions on how to solve this problem?

Thanks!

[Lakshman Kumar]

sorry i didn't understand. could you please let me know what you want.