UUID as column type in create_join_table

21 Feb 2019

Rails 5 has started supporting UUID as a column type for primary key, so create_join_table should also support UUID as a column type instead of only integers.

class CreateJoinTableCustomerProduct < ActiveRecord::Migration[5.0]
  def change
    create_join_table(:customers, :products, column_options: {type: :uuid})
  end
end

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UUID as column type in create_join_table

“Meticulously pragmatic and exquisitely articulate, Practical Object Oriented Design in Ruby makes otherwise elusive knowledge available to an audience which desperately needs it. The prescriptions are appropriate both as rules for novices and as guidelines for experienced professionals.”

Essential Reading: Learn Rails 6