我正在尝试制作rails测验应用程序并遇到问题。 我正在使用nested_forms gem,我通常可以创建测验。 以下是创建测验的代码:
_form.html.erb:
<%= nested_form_for @quiz do |f| %>
<%= f.text_field :name %>
<%= f.fields_for :questions do |question_form| %>
<h5>Question</h5>
<%= question_form.text_field :question %>
<%= question_form.text_field :option1 %>
<%= question_form.radio_button :trueoption, 1 %>
<%= question_form.text_field :option2 %>
<%= question_form.radio_button :trueoption, 2 %>
<%= question_form.text_field :option3 %>
<%= question_form.radio_button :trueoption, 3 %>
<%= question_form.link_to_remove "Remove" %>
<% end %>
<%= f.link_to_add "Add a question", :questions %>
<%= f.submit "I'm Done!", class: "button" %>
<% end %>
这很有效,测验被创建并保存。 但是当试图解决测验时,问题就出现了。 当我进行测验的展示视图(如测验/ 8)时,我正在通过这个显示测验:
<%= nested_form_for @result do |f| %>
<% @quiz.questions.each do |question| %>
<%= f.fields_for question do |q| %>
<div class="panel">
<h2><%= question.question %></h2>
<h5><%= q.radio_button :trueoption, 1, id: question.id %><%= label :trueoption_option1, question.id %></h5>
<h5><%= q.radio_button :trueoption, 2, id: question.id %><%= label :trueoption_option2, question.id %></h5>
<h5><%= q.radio_button :trueoption, 3, id: question.id %><%= label :trueoption_option3, question.id %></h5>
</div>
<% end %>
<% end %>
<%= f.submit %>
<% end %>
它会正常显示每个问题,就像它应该的那样。但是什么不起作用的是单选按钮;它们就像它们一样,只有1个可以检出。有什么问题?
以下是控制器:
quizzes_controller.rb:
class QuizzesController < ApplicationController
def index
@quizzes = Quiz.all
end
def new
@quiz = Quiz.new
3.times do
question = @quiz.questions.build
end
end
def create
@quiz = Quiz.create(params[:quiz])
if @quiz.save
redirect_to @quiz
else
render :action => :new
end
end
def show
@quiz = Quiz.find(params[:id])
@result = Result.new
end
end
结果控制器:
class ResultsController < ApplicationController
def new
@result = Result.new
end
def create
@result = Result.create(params[:result])
if @result.save
redirect_to @result
else
render action: :new
end
end
def show
@result = Result.find(params[:id])
end
end
模特:
Quiz.rb
class Quiz < ActiveRecord::Base
attr_accessible :name, :questions_attributes
has_many :questions
accepts_nested_attributes_for :questions, allow_destroy: true
end
Question.rb
class Question < ActiveRecord::Base
attr_accessible :option1, :option2, :option3, :trueoption, :quiz_id, :question
belongs_to :quiz
has_many :answers
end
Result.rb
class Result < ActiveRecord::Base
attr_accessible :question_id, :trueoption, :question_attributes
belongs_to :question
accepts_nested_attributes_for :question
end
所以基本上,它的作用是只保存1个结果而不是每个结果(嵌套形式),但它应该特别为每个问题保存结果。
提前致谢
答案 0 :(得分:0)
在您的模型中,您已定义Result belongs to Question
,因此只会为您的结果存储一个问题。
更新您的关系:
result has_many question
question belongs_to result