Django MongoDB, create models based on other model

Question

I have one model Foo, it will have a field lets call it "parameters_names". I want to save this model then create a new model with those paramaters_names as fields of the new model.

so for example Foo:

parameters: "Name, Surname, ID_number"

NEW MODEL: 
name = CharField()
surname = CharField()
id_number = CharField()

So the new models might always be different.

Answer 1

How about this?

model FooParams:
    foo = ForeignKey(Foo)
    param = CharField()
    value = CharField()