ruby-on-rails - 如何使用渲染部分传递选项

Question

有没有办法通过渲染部分传递选项？或者也许我需要设置一些本地人并检查他们？我很困惑。我正在寻找这样的东西:

views/articles/_post.html.erb

<%= render partial: "shared/info" %>
<%#= SILLY GUESS: render partial: "shared/info", locals: { from_articles: true } %>

views/stories/_post.html.erb

<%= render partial: "shared/info" %>
<%#= SILLY GUESS: render partial: "shared/info", locals: { from_stories: true } %>

我该如何做这样的事情？

views/shared/_info.html.erb

<% if called from views/articles/_post.html.erb %>
  <p>Foo</p>
<% elsif called from views/stories/_post.html.erb %>
  <p>Bar</p>
<% end %>

Answer 1

params 哈希将始终包含 :controller 和 :action 键，但您应该使用方法 controller_name 和 action_name 而不是访问这些值。您有两种选择，但第二种是更好的做法。

<% if params[:controller] == articles %>
  <p>Foo</p>
<% elsif params[:controller] == stories %>
  <p>Bar</p>
<% end %>

或

<% if controller_name == articles %>
  <p>Foo</p>
<% elsif controller_name == stories %>
  <p>Bar</p>
<% end %>