Today I wanted to use one of Django SVN's new features: A newforms's forum for a model instance that only uses a subset of its fields (For example if a model has the fields a, b and c, you could easily create a form that only handles a and b).
But I found a small problem: You can use such a form, to also write the data back to the database and in the process use the model's data validation and integrity checks. For some reason, only the validation is actually performed, while integrity problems still raise an IntegrityError which you'll have to deal by yourself.
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