Rails 4 simple_form collection_select [英] Rails 4 simple_form collection_select

问题描述

如何将以下内容翻译成简单的形式?

How do I translate the following to simple form?

<%= 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.

I can't use a simple association because @locations is the result of a where query.

推荐答案

试试这个

<%= 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%>

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