Ruby on Rails Single Table Inheritance Custom inheritance column
Example
By default STI model class name is stored in a column named type. But its name can be changed by overriding inheritance_column value in a base class. E.g.:
class User < ActiveRecord::Base
self.inheritance_column = :entity_type # can be string as well
end
class Admin < User; end
Migration in this case will look as follows:
class CreateUsers < ActiveRecord::Migration
def change
create_table :users do |t|
t.string :name
t.string :password
t.string :entity_type
t.timestamps
end
end
end
When you do Admin.create, this record will be saved in the users table with entity_type = "Admin"
