Rails：更改由fields_for生成的div類

Question

Rails將fields_for（嵌套屬性）生成的表單輸入始終封裝爲<div class="fields">...</div>。我需要將課程更改爲「col-md-4」或至少添加到它。我將如何做到這一點？

<%= form.fields_for :products_colors do |pc| %> 
    <%= render 'products_color', :pc => pc %> 
<% end %> 

Answer 1

的文檔：

http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#method-i-fields_for

fields_for(record_name, record_object = nil, options = {}, &block) 

您可以添加到classoptions，像這樣：

fields_for(:products_color, nil, { :class => 'col-md-4' }) do ...