Rails before_filter（Correct_user或Admin）

Question

我想允许正确的用户或管理员用户删除模型。我该如何设置？

控制器

  before_filter :correct_user,    only: [:edit, :update, :destroy]
  before_filter   :admin_user,    only: :destroy
  ...
  private
def signed_in_user
  unless signed_in?
    store_location
    redirect_to signin_path, notice: "Please sign in."
  end
end
def correct_user
  if (Event.find(params[:id]).user_id != current_user.id)
    redirect_to events_path, :notice => "You do not own this event"
  end
end
def admin_user
  redirect_to(root_path) unless current_user.admin?
end

目前，用户需要同时是模型的管理员和所有者。我想有一个或许可安排。