flash [：alert]不起作用，但是flash [：notice]在重定向时显示消息 [英] flash[:alert] not working, but flash[:notice] displays the message on redirect

问题描述

我正在使用rails_admin gem，配置如下

I am using rails_admin gem and the configuration is as follows

config.authorize_with do
  if current_user.nil? || current_user.role != 'admin'
    redirect_to main_app.root_path
    flash[:alert] = "Sorry you are not authorized!"
  end
end

当我使用 flash [ ：notice] ，我可以在root_path上看到该消息，但是如果将其更改为 flash [：alert] ，则不会显示该消息想法为什么以及什么解决方案？

When I use flash[:notice], I can see the message on the root_path, but if I change it to flash[:alert] it does not display, any ideas why and what would be the solution?

我只想使用：alert ，因为更改了通知颜色

I want to use :alert only, since changing the notice color will result it displaying red font for all other notices.

推荐答案

您可能没有输出flash [：alert] ]散列到您的页面上。

It is likely that you're not outputting the flash[:alert] hash out onto your page.

在视图中查找将flash [：notice]输出到何处（可能在app / views / layouts / application.html.erb中（或类似内容），然后复制该行以发出提醒。

Look in your views for where you output flash[:notice] (probably in app/views/layouts/application.html.erb (or similar) and copy the line for your notice to alert. It should look something like this:

<% if flash[:alert] %>
      <div id="alert">
         <%= flash[:alert] %> 
      </div>
<% end %>

如果不存在类似的东西（或者您找不到），将其添加到您的视图（或布局）

If something like that doesn't exist (or you can't find it), add it to your view (or layout)

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