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我有一个模型资源。它与分配有关联。我正在使用 Simple_form_for gem 。我想显示资源名称和他的角色以在 myu resource_vteam_allocation 表单中唯一标识它。我已经在资源中定义了标题方法，希望资源将使用标题值但徒劳无功。所以请告诉我在这个语句中我需要什么样的改变<%= f.association :resource, :required=>:true,:collection=>@selected_resource %>来显示与资源类型相关的资源值

class Resource < ActiveRecord::Base
  belongs_to :resource_type
  has_many :resource_vteam_allocation, :dependent => :destroy
  has_many :vteams, :through => :resource_vteam_allocation
  accepts_nested_attributes_for :resource_vteam_allocation, :allow_destroy => true
  def title
    "#{name} #{resource_type.title}"
  end
end

类 ResourceVteamAllocation < ActiveRecord::Base belongs_to :resource

结尾

<%= simple_form_for([@resource_vteam_allocation.vteam, @resource_vteam_allocation],:remote=>true, :html=>{:multipart=>true}) do |f| %>
  <%= f.error_notification %>
  <div class="inputs">
      <%= f.association :resource, :required=>:true,:collection=>@selected_resource %>
      <%= f.input :resource_type, :required=>:true, :label=>"Joining As" %>
      <%= f.association :resource_billing_type, :required=>:true, :label=>"Billing Type"  %>
  </div>
  <div class="actions" >
    <%= f.button :submit, :class=>'button big' %> <span style="vertical-align: bottom">or</span> <%= link_to "Cancel", "#", :id=>'new-xdoc-cancel' %>
  <% end %>
</div>
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1 回答 1

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:label_method =>:title是我的问题标题方法的解决方案已在模型中定义

<%= f.association :resource, :required=>:true,:collection=>@selected_resource, :label_method=>:title %>
于 2011-04-04T15:37:33.357 回答