我使用铁轨2.3.4、红宝石1.8.24、马克乌斯狮子和红宝石1.9.3。
我试图将xml转换到一个叫做发票的物体上。现在,我把发票与发票细节联系起来,所以在我的文件:xml I写道:
format.xml { render :xml => @invoice.to_xml(:include => :invoice_detail) }
发生错误 : 活动记录 : 声明无效 无效 列名称 发票_ id
我DB里没有发票单列, 现在我希望铁路能理解这一点。 我希望它能够查看清单DocId列, 而不是寻找不存在的发票单列。 我该怎么做呢? 非常感谢 。
当您创建您的发票范本时, 您必须指定外国密钥栏 :
class InvoiceDetail < ActiveRecord::Base
belongs_to :invoice, :foreign_key => "inventoryDocId"
end
您在此有属于您的选项 : < a href=" http://api.rubyonrails.org/class/ActiveRecord/Acience/Acsociations/Class Methods.html#method-i-belongs_to" rel="nofollow" >http://api.rubyonrails.org/clasmrecord/Acsociations/Class Methods.html#method-i-belongs_to < a>
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