路由全包时重定向并引发Flash消息 [英] Redirect and raise flash message when catch-all in routes

问题描述

我能够重定向使用在路由文件末尾的这一行：

  match'* a'=> redirect（'/'）
  

我想进行重定向并在其中传递警报消息 routes.rb 。

有点像（这里的语法错误）：

  match'* a'=> redirect（’/’），：alert =>  aaargh，您不想去＃{params [：a]} 
  

是

如果在视图/控制器中执行此操作，则可以使用 redirect_to 并在重定向页面上传递Flash消息（请参阅文档中重定向中的示例）。创建一个新的控制器方法并重定向到那里可以用，但是似乎不太好...这是推荐的方法吗？

解决方案

对 Jun的答案进行了细微调整使我可以这样做：

  match'* a'=>重定向{| p，req | req.flash [：error] = aaargh，您不想转到＃{p [：a]}; '/'} 
  

将无效页面重定向到'/' 以及所需的（动态）消息。

如果您访问 www.your_website / a_bad_place 会在'/'上传递消息：

aaargh，您不想转到 a_bad_place

。 / p>

您可以使用以下方法获取整个违规（无效）网址：

 ＃{req.env [ HTTP_HOST]}＃{req.env [ REQUEST_PATH]} 
  

并显示以下内容：

  match'* a'=>重定向{| p，req | req.flash [：error] = aaargh，您不想转到＃{req.env [ HTTP_HOST]}＃{req.env [ REQUEST_PATH]}}; '/'} 
  

，您会看到：

aaargh，您不想访问 www.yourwebsite / a_bad_place

I am able to redirect all (invalid) urls using this line at the end of the routes file:

match '*a' => redirect('/') 

I'd like to do the redirect and pass on an alert message in routes.rb.
Something like (the syntax is wrong here):

match '*a' => redirect('/'), :alert => "aaargh, you don't want to go to #{params[:a]}"

Is it possible to do this?

If I were doing this in a view/controller, I could use redirect_to and pass on a flash message on the redirected page (see examples in redirecting in the docs). Creating a new controller method and redirecting there would work, but it seems inelegant... is it the recommended way?

解决方案

A slight tweaking of Jun's answer allowed me to do this:

match '*a' => redirect { |p, req| req.flash[:error] = "aaargh, you don't want to go to #{p[:a]}"; '/' }

Which redirects invalid pages to '/' along with the desired (dynamic) message.

If you go to www.your_website/a_bad_place this passes the message on '/':

aaargh, you don't want to go to a_bad_place

.

You can grab the entire offending (invalid) url by using:

#{req.env["HTTP_HOST"]}#{req.env["REQUEST_PATH"]}

and display it with this:

match '*a' => redirect { |p, req| req.flash[:error] = "aaargh, you don't want to go to #{req.env["HTTP_HOST"]}#{req.env["REQUEST_PATH"]}"; '/' }

and you'll see:

aaargh, you don't want to go to www.yourwebsite/a_bad_place

这篇关于路由全包时重定向并引发Flash消息的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！