ducduong / polymorphic_association
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Description: An implementation of polymorphic association for Ruby on Rails
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Clone URL: git://github.com/ducduong/polymorphic_association.git
polymorphic_association / migrate / 20080706212038_create_associations.rb
100644 13 lines (11 sloc) 0.27 kb
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class CreateAssociations < ActiveRecord::Migration
  def self.up
    create_table :associations do |t|
      t.references :first, :polymorphic => true
      t.references :second, :polymorphic => true
    end
  end
 
  def self.down
    drop_table :associations
  end
end