没有STI的Rails多态关联

Question

This post describes my problem very well, but the answer to that post assumes that you use Single Table Inheritance (STI) for subclasses. In my case the subclasses of SomeProf has their own tables and since the _type column is storing the class name of the superclass, this is not working. In my equivalent to SomeDeepProf1 I have declared that self.table_name = 'some_other_table' and I would not like to use STI since the subclasses of my equivalent to SomeProf have very different attributes.

Any suggestion of how to solve this?

Answer 1

现在，我正在使用以下解决方法在SomeDeepProf1类中解决此问题： before_create :set_poly_type_to_class_name ... def set_poly_type_to_class_name self.profile_type = self.profile.class.name end