class CreateAdminActionLogs < ActiveRecord::Migration[5.1] def change create_table :admin_action_logs do |t| t.belongs_to :account, foreign_key: { on_delete: :cascade } t.string :action, null: false, default: '' t.references :target, polymorphic: true, index: { name: 'index_admin_action_logs_on_target_type_and_target_id' } t.text :recorded_changes, null: false, default: '' t.timestamps end end end