20160125124508_create_complaints.rb

class CreateComplaints < ActiveRecord::Migration[4.2]
  def change
    create_table :complaints do |t|
      t.text :description
      t.references :user
      t.references :complaintable, polymorphic: true, index: true
      t.references :complaint_reason

      t.timestamps null: false
    end
    add_foreign_key :complaints, :complaint_reasons, on_delete: :cascade
    add_foreign_key :complaints, :users
    add_index :complaints, [:user_id, :complaintable_id, :complaintable_type], unique: true, name: 'user_and_complaintable'
  end
end