# #Does the user have all roles given? #You can use hash values
  # :any=>[role,role] and :all=>[role,role]cto change how this operates. If both
  # :all and :any are present it processes vit as Does user have at least one of
  # the roles in :any roles and has every role in of :all roles #If user has the
  # roles "admin" this method returns true regardless of #the arguments passed.
  # Use :check_admin => false to disable this.
  def roles?(*roles)
    roles.flatten!

    options={}
    options.merge! roles.delete_at(-1) if roles[-1].instance_of?(Hash)

    unless options.fetch(:check_admin, nil)
      return true if role?('admin')
    end
    return false unless options.fetch(:any, []).any do |r| has_role?(r) end
    return false unless options.fetch(:all, []).all do |r| has_role?(r) end
    return true if roles.empty?
    return roles.all do |r| has_role?(r) end
  end

##Notes
#The ruby method {}.fetch("key","default") is similar to the code below
#Assume: array={}
if array.has_key?("key")
  return array["key"]
else
  return "default"
end