ActionableError

Some of the code used:

class MissingSeedsError < StandardError
  include ActiveSupport::ActionableError

  action "Run db:seeds" do
    Rails.application.load_seed
  end
end

ApplicationController < ActionController::Base
  before_action :check_db_seeds, if: -> { Rails.env.development? }

  def check_db_seeds
    raise MissingSeedsError if User.count.zero?
  end
end

ActiveSupport::ActionableError.dispatch(TestError, "Say Hello!")

ActiveSupport::ActionableError.actions(TestError)

ActiveSupport::ActionableError.actions(ActiveRecord::PendingMigrationError)