class CreateEtransHistories < ActiveRecord::Migration def change create_table :etrans_histories do |t| t.references :order, index: true t.string :M t.string :R t.string :T t.string :A t.string :B t.string :C t.string :D t.string :E t.string :F t.string :G t.string :H t.string :I t.string :J t.string :K t.string :N t.string :O t.string :P t.string :Q t.string :S t.string :U t.string :W t.string :Y t.string :Z t.timestamps null: false end add_foreign_key :etrans_histories, :orders end end