Django model subclassing: get the subclass by querying the superclass?

The only way to do this is to explicitly store on the base model what type it is. So have a derived_type (or whatever) field on BaseMedium, and set it on save. Then you can have a get_derived_type method.

Thanks mr. Roseman for your reply. I developed your idea a bit further. Here is what I came up with.

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