Ruby on rails ActiveRecord:：提交表单时出现未知属性错误

提交表单后，我收到一个

ActiveRecord:：UnknownAttributeError

。错误是行

@question=@conversation.questions.new（params[：question]）上的
未知属性：conversation\u id

我在属性中添加了
conversation\u id
，但没有做任何更改。不确定错误还可能指向什么

问题:

  def create
    @conversation = Conversation.create
    @question = @conversation.questions.new(params[:question])
      if @question.save
        @message = current_user.messages.new(:subject => "You have a question from #{@question.sender_id}",
                               :body => @question.question)
        @question.message = @message
        @question.save
        redirect_to :back, notice: 'Your question was saved successfully. Thanks!'
      else
        render :new, alert: 'Sorry. There was a problem saving your question.'
      end
    end
  end

对话模式：

class Conversation < ActiveRecord::Base
  acts_as_messageable

  attr_accessible :answer, :question, :sender_id, :recipient_id, :conversation_id

  has_many :questions

end

class Question < ActiveRecord::Base
  attr_accessible :answer, :question, :sender_id, :recipient_id, :conversation_id
  belongs_to :user

  belongs_to :sender,:class_name => 'User',:foreign_key => 'sender_id'

  belongs_to :recipient,:class_name => 'User',:foreign_key => 'recipient_id'

  belongs_to :message

  belongs_to :conversation


  end

问题模式：

class Conversation < ActiveRecord::Base
  acts_as_messageable

  attr_accessible :answer, :question, :sender_id, :recipient_id, :conversation_id

  has_many :questions

end

class Question < ActiveRecord::Base
  attr_accessible :answer, :question, :sender_id, :recipient_id, :conversation_id
  belongs_to :user

  belongs_to :sender,:class_name => 'User',:foreign_key => 'sender_id'

  belongs_to :recipient,:class_name => 'User',:foreign_key => 'recipient_id'

  belongs_to :message

  belongs_to :conversation


  end

类问题'User'，：foreign\u-key=>'sender\u-id'
属于：收件人，：类名称=>'User'，：外键=>'recipient\u id'
属于：消息
属于：对话
结束
您将在下一行收到
ActiveRecord:：UnknownAttributeError-未知属性：对话id

@question = @conversation.questions.new(params[:question])

因为您没有在
questions
表中创建
conversation\u id
字段，这是必需的，因为您已经在
conversation
和
Question
模型之间建立了1-M关联

要解决此错误，您需要在
问题
表中添加
conversation\u id
字段。
您是否忘记在
问题
表中添加
conversation\u id
字段？函数中的参数散列是什么？@kirthorat啊，这是正确的！简单地看一下！谢谢