ActiveRecord::Schema.define do create_table :audits, force: true do |t| t.column :auditable_id, :integer t.column :auditable_type, :string t.column :user_id, :integer t.column :user_type, :string t.column :username, :string t.column :action, :string t.column :changes, :text t.column :version, :integer, default: 0 t.column :comment, :string t.column :created_at, :datetime end add_index :audits, [:auditable_id, :auditable_type], name: "auditable_index" add_index :audits, [:user_id, :user_type], name: "user_index" add_index :audits, :created_at end