子类的不同视图 [英] Different views for subclasses

问题描述

我正在使用 STI 子类并希望针对不同的子类指向不同的视图.目前，我将子类主题路由到主类文章，如下所示:

I'm using STI subclasses and want to direct to different views for the different subclasses. At the moment I'm routing the subclass topic to the main class article like this:

 resources :topics, :controller => 'articles'

是否有一种简单的方法可以指向不同的视图?

Is there an easy way to direct to different views?

编辑

我发现的最好的方法是:

The best way I've found of doing this is:

  <% case%>
    <% when @article.type == 'Topic' %>
      <%= render 'topic' %>
    <% else %>
      <%= render 'article' %>
  <% end %>

推荐答案

如果你足够聪明地命名你的视图，你可以这样做

If you name your views smartly enough, you could just do

render @article.type

或

render :partial => @article.type

否则，您可以在所有 STI 子类中定义一个方法，该方法返回要显示的部分/页面的名称，这样您就可以避免控制器中的所有 if/else 逻辑.

Otherwise you could define a method in all your STI subclasses that returns the name of the partial/page to be display, that way you'll avoid all the if/else logic in your controller.

另一种方法是为不同的子类使用单独的控制器，但这不是一个好的设计.如果你要走这样一条路，那么 STI 可能毕竟不是最好的方法.

Another approach would be to have separate controllers for the different subclasses, but that is not a good design. If you were to take such a path, than maybe STI wasn't the best approach after all.

这篇关于子类的不同视图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！