Ruby on rails NoMethodError（对于[]：数组，未定义方法`gsub'；）：

我有下一个带有数组字段的模型：

Class Invitation
 include Mongoid::Document
 include Mongoid::Timestamps::Created
 include Sunspot::Mongo

 # this is the relation. Is not a field
 has_many :recipients, :class_name => 'Invitation', :foreign_key => :recipient_id
 attr_accessible :recipients

 searchable do
  string :recipients, :multiple => true do
    recipients.map { |r| r.recipients.to_s }
  end
end

我的控制器中有：

def recipients

 @invitation = Invitation.find(params[:id])
 @search = Invitation.search do |s|
 s.fulltext params[:search]
 s.with(:recipients, @invitation.recipients)
 end

@recipients = @search.results
  respond_to do |format|
   format.html
  end

end

不正确的行是

@search=Invitation.search do|s

我得到下一个错误：

NoMethodError (undefined method `gsub' for ["#<Invitation:0x9a1c6e8>"]:Array):

NoMethodError（用于[“#”]：数组的未定义方法“gsub”）：

如何解决此问题

---

谢谢你

你能完整地回溯一下吗？@shingara我用ajax加载了我在控制台日志中看不到完整回溯的内容。如何在控制台日志中获取完整跟踪？我已编辑了以下问题：关系是

有多个：收件人，：class\u name=>“邀请”，：foreign\u key=>：收件人id

。您说错误在

@search=Pin.search do |

，但该行不存在。我认为错误的行是

@search=Invitation.search do | s |

对不起@t假设错误在

@search=Invitation.search do | s |