#..Rails 4的未定义方法`model_name_question’
我在提交表单后收到此错误:(在索引页面中）
3, :style => "width:80%", :placeholder => "enter your question." %> 我有question模型：
class Question < ActiveRecord::Base validates :question, presence: true belongs_to :category belongs_to :questioner end
和问题控制器：
class QuestionsController < ApplicationController def index @quiz = Question.new @questioner = Questioner.new end def new @quiz = Question.new(quiz_params) end def show @quiz = Question.find(params[:id]) end def edit @quiz = find(params[:id]) raise "Question Not edited!" unless @quiz end def create @quiz = Question.new(quiz_params) if @quiz.save flash[:success] = 'You have successfully posted the questions!' redirect_to questions_path else flash[:error] = "Please review the problems below." # render 'new' redirect_to questions_path end end private def quiz_params params.require(:question).permit(:content, :answered, :questioner_id, :category_id) end end
这可能是什么问题？ 在rails服务器中我有这个：
Completed 500 Internal Server Error in 5ms NoMethodError - undefined method `question' for #: activemodel (4.0.2) lib/active_model/attribute_methods.rb:439:in `method_missing'
该问题可能与此validation行有关
validates :question, presence: true
它假设您的问题模型具有:question属性。 换句话说，确保questions数据库表中有一个正确的question数据库列。
如果不是这种情况，请相应地修复表或validation。