rails order example

gistfile1.txt

def index
  default_order = "created_at"
  case current_user.role
  when User::Roles[:admin] # 1
    default_order = "campo1"
  when User::Roles[:other] # 2
    default_order = "campo2"
  else
    default_order = "campon"
  end

  @users = User.where(...).order(default_order)
end