我如何在bootstrap中設置一個紅寶石選擇？

Question

我想在bootstrap中以選擇樣式包裝這行紅寶石，但每次執行它時都會打破並列出窗體之外的所有生成選項。

在這裏的代碼，我想包裝

<%= f.label :user_description_id %> 
<%= f.collection_select(:user_description_id, UserDescription.all, :id, :description, include_blank: true) %> 

Answer 1

你應該做的事端臨客此：

<%= f.label :user_description_id %> 
<%= f.collection_select(:user_description_id, UserDescription.all, :id, :description, {include_blank: true}, {class: "css-class"}) %> 

參考：http://api.rubyonrails.org/classes/ActionView/Helpers/FormOptionsHelper.html#method-i-collection_select