ruby-on-rails - Rails 4 simple_form collection_select

Question

如何将以下内容翻译成简单的形式？

<%= form_for(@bill) do |f| %>

<%= f.label :location_id %>
<%= f.collection_select(:location_id, @locations, :id, :location_name, 
      {:selected => @bill.location_id}) %>

我不能使用简单的关联，因为 @locations 是 where 查询的结果。

Answer 1

尝试这个

<%= simple_form_for @bill do |f| %>
   <%= f.input :location,:collection => @locations,:label_method => :location_name,:value_method => :id,:label => "Location" ,:include_blank => false %>
   <%= f.button :submit %>
<%end%>

希望这有帮助