您在Flash消息中嵌入链接的方法是什么？

The ability to have flash messages (notice, error, warning, etc) with embedded links is nice from a user interaction standpoint. However, embedding an anchor tag inside a flash message from the controller is dirty.

从用户交互的角度来看，具有嵌入式链接的闪存消息（通知，错误，警告等）的能力是很好的。但是，在来自控制器的flash消息中嵌入锚标记很脏。

Let's assume that a flash message like this is good for usability*:

让我们假设这样的flash消息对可用性有好处*：

Example Flash Message Notice with an Embedded Link http://img.skitch.com/20090826-xbsa4tb3sjq4fig9nmatakthx3.png (borrowed from DailyMile.com)

嵌入式链接示例Flash消息通知http://img.skitch.com/20090826-xbsa4tb3sjq4fig9nmatakthx3.png（从DailyMile.com借来）

What tactic would you take between the controller and view to employ something like this cleanly?

在控制器和视图之间采取什么策略来干净利用这样的东西？

4 个解决方案

#1

Just thought I would share this, since found answer I was looking for elsewhere:

只是想我会分享这个，因为找到的答案我在其他地方寻找：

Works on rails 3.1

适用于轨道3.1

flash[:notice] = "Proceed to #{view_context.link_to('login page', login_path)}".html_safe

#2

Glenn Gillen has an approach that he calls Useful Flash Messages in Rails.

Glenn Gillen有一种方法，他称之为Rails中的有用Flash消息。

I modified his code snippets to be a little more idiomatic (for me at least).

我将他的代码片段修改为更加惯用（至少对我来说）。

The controller fills the flash like this:

控制器像这样填充闪光灯：

flash[:notice]      = "Your profile was updated. %s"
flash[:notice_item] = ["Edit again?", edit_profile_path(@profile)]

You then might have helpers that look something like this:

然后你可能会有这样的帮助：

def render_flash_messages(*keys)
  messages = keys.collect do |key|
    content_tag(:p, flash_message_with_item(key), :class => "flash #{key}") if flash[key]
  end.join
  content_tag(:div, messages, :id => "flash_messages") unless messages.blank?
end

def flash_message_with_item(key)
  item = flash["#{key}_item".to_sym]
  substitution = item.is_a?(Array) ? link_to(*item) : item
  flash[key] % substitution
end

The view looks simply like this:

视图看起来像这样：

<%= render_flash_messages(:error, :notice, :warning) %>

The view (via the flash_message_with_item helper) is responsible for creating the anchor tag, but the controller manages what goes into the flash message including an optional resource for further action.

视图（通过flash_message_with_item帮助程序）负责创建锚标记，但控制器管理进入flash消息的内容，包括用于进一步操作的可选资源。

#3

You could create a helper method to render out partials based on the value passed back in the flash message.

您可以创建一个辅助方法，根据flash消息中传回的值渲染部分内容。

#4

This is similar to link_to() in Rails flash

这类似于Rails flash中的link_to（）

# In your controller
flash[:error] = render_to_string(:partial => "sessions/login_failed_message")

# In sessions/_login_failed_message.html.erb
Login failed.  If you have forgotten your password, you can #{link_to('reset it', reset_path)}

#1