Question

我正在根据这里的教程实施虚荣URL：https://wesleyluyten.com/writing/vanity-urls-for-multiple-controllers-in-rails

为了使虚荣URL工作，我需要像这样使用机架式路由器：

class SlugRouter
  def self.to(action)
    new(action)
  end
  def initialize(action)
    @action = action
  end
  def call(env)
    params = env['action_dispatch.request.path_parameters']
    params[:action] = @action

    sluggable = Slug.where('lower(url) = ?', params[:slug].downcase).first
    model = sluggable.try(:sluggable_type)
    raise ActionController::RoutingError.new('Not Found') if !model

    controller = [model.pluralize.camelize,'Controller'].join
    params[:controller] = model.pluralize.downcase
    controller.constantize.action(params[:action]).call(env)
  end
end

问题在于raise ActionController::RoutingError.new('Not Found') if !model这不能正常处理路由错误。我怎样才能通过重定向到root来优雅地处理路由错误一个flash消息与现在发生的事情是rails显示错误页面w

ActionController::RoutingError (Not Found):
lib/slug_router.rb:14:in `call'

Answer 1

尝试：

redirect_to root_path, notice: 'Unknown Route' if !model

或者：

if !model
  params[:controller] = 'index'
  IndexController.action('index').call(env)
else
  ...
end

如何使用RoutingError ActionController :: RoutingError

1 个答案: