method

inheritance_column

Importance_3
v2.2.1 - Show latest stable - 2 notes - Class: ActiveRecord::Base
inheritance_column() public

Defines the column name for use with single table inheritance — can be set in subclasses like so: self.inheritance_column = "type_id"

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January 11, 2011
5 thanks

Disable STI

I had to add “self.inheritance_column” as opposed to simply “inheritance_column” to get this to work.

Code example 

class MyModel < ActiveRecord::Base
  # disable STI
  self.inheritance_column = :_type_disabled
end
January 26, 2009
5 thanks

two ways to disable single table inheritance

  1. Don’t use the column name ‘type’

  2. Or if the first is no option for you: Tell Rails to look for a not existing column like:

class MyModel < ActiveRecord::Base

  # disable STI
  inheritance_column = :_type_disabled
end