gistfile1.txt

class Verifier
  attr_accessor :object, :user

  def initialize(object, user)
    @object = object
    @user = user
  end

  def access_allowed?
    if @user.class == Run
      @object.user == @user
    elsif @user.class == User
      @object == @user
    end
  end
end

v = Verifier.new(run, current_user)
v.access_allowed?