Question

我对整个rails MVC概念都很陌生，我的任务是创建一个执行以下操作的表单：

取一个测试号
显示每次测试有多少部分（这是常数，总是4）
允许用户的区域输入他们对部分中每个问题的回答。每个部分的问题数量会根据他们获得的测试数量而变化。

我的观点如下：

  = form_for [@answer_sheet] do |f|
      =f.collection_select(:test_prep_number, Exam.find(:all),:test_prep_number, :test_prep_number, {:include_blank => 'Select your test prep number'})
      =f.fields_for :answer_sections do |section_form|
         =section_form.label :section
              .form-inline
             =f.label :A 
             =radio_button_tag 'answer', 'A'
             =f.label :B
             =radio_button_tag 'answer', 'B'
             =f.label :C
             =radio_button_tag 'answer', 'C'
             =f.label :D
             =radio_button_tag 'answer', 'D'
             =f.label :E
             =radio_button_tag 'answer', 'E'

我的控制器看起来像这样：

def index
    @answer_sheet = AnswerSheet.build_with_answer_sections
    @answer_section = AnswerSection.new
    @section_count = AnswerSection.where("exam_id = ?", params[:test_prep_number).count
end

我现在遇到的问题是我似乎无法围绕创建正确数量的单选按钮。到目前为止，我已经设法每个部分只生成一个问题。

我假设我需要一个for循环（这将需要一个查询来查找每个考试部分有多少问题）。

编辑：按要求添加模型

答题纸模型

class AnswerSheet < ActiveRecord::Base
  attr_accessible :date, :raw_score, :test_prep_number, :answer_sections, answer_sections_attributes
MAX = 101
validates :test_prep_number, :presence => true
validates :raw_score, :presence => true, :numericality => { :greater_than_or_equal_to => 0, :less_than_or_equal_to => MAX}
validates :date, :timeliness => {:on_or_before => lambda { Date.current }, :type => :date}, :presence => true
belongs_to :user
has_many :answer_sections

回答部分模型

class AnswerSection < ActiveRecord::Base
  MAX = 30

  attr_accessible :section_score, :answers, :answer_attributes
  has_many :answers, :dependent => :destroy
  belongs_to :answer_sheet
  accepts_nested_attributes_for :answers

  validates :section_score, :presence => true, :numericality => { :greater_than_or_equal_to => 0,
:less_than_or_equal_to => MAX }

Answer 1

我建议将模型调整为用户回答的选项：

class Test < ActiveRecord::Base
  belongs_to :user
  has_many :question

  attr_accessible :date, :test_prep_number

  validates :test_prep_number, :presence => true
  validates :date, :timeliness => {:on_or_before => lambda { Date.current }, :type => :date}, :presence => true
end

class Question < ActiveRecord::Base
  MAX = 30

  attr_accessible :question_text
  has_many :choices, :dependent => :destroy
  has_one :answer
  belongs_to :test
  accepts_nested_attributes_for :answers

end

class Choice < ActiveRecord::Base
  attr_accessible :question_id, :choice_text, :correct_choice
  belongs_to :question
end

class Answer < ActiveRecord::Base
  attr_accessible :choice_id
  belongs_to :user
  belongs_to :question 
end

rails动态生成表单

1 个答案: