Question

我有模特展览，他有测验。在测验中，我们有问题和答案属于它。我使用了嵌套属性。

我犯了错误，因为现在在rake db：seed rails之后，我只在问题中添加了最后一行。这是我种子展示的一个例子

e1 = Exhibit.create(
title: 'TITLE', 
author:  'PICASOO',
date_of_origin: '300', 
description: 'LOREM IPSUM', 
ex_id: '1',
type: nil,
    questions_attributes:[
    content: "QUESTION 1?",
        answers_attributes:[
        content: "ANSWER 1",
        correct: true,
        content: "ANSWER 2",
        correct: false, # if it's correct answer i change this var.
        content: "ANSWER 3",
        correct: false]
    ])

展示模型：

has_many :questions, :dependent=> :destroy
  accepts_nested_attributes_for :questions, 
                                :reject_if => lambda { |a| a[:content].blank? }, 
                                :allow_destroy => true

问题模型：

 belongs_to :exhibit
      has_many :answers, :dependent=> :destroy
      accepts_nested_attributes_for :answers,
                                    :reject_if => lambda { |a| a[:content].blank? }, 
                                    :allow_destroy => true

答案模型：

class Answer < ActiveRecord::Base
  belongs_to :question
end

Answer 1

e1 = Exhibit.create(
title: 'TITLE', 
author:  'PICASOO',
date_of_origin: '300', 
description: 'LOREM IPSUM', 
ex_id: '1',
type: nil,
{ 
:questions_attributes => 
    { 0 => 
        { 
           content: "Q1",
           :answers_attributes => 
              { 0 =>
                  {
                      content: "ANSWER 1",
                      correct: true
                  },
                1 =>
                  {
                      content: "ANSWER 2",
                      correct: false
                  }
              }
        }  
    }  
}
)

或：

e1 = Exhibit.create(
title: 'TITLE', 
author:  'PICASOO',
date_of_origin: '300', 
description: 'LOREM IPSUM', 
ex_id: '1',
type: nil,
questions_attributes: [
  { 
     content: 'Q1',
     answers_attributes: [
       {content: "A1", correct: false},
       {content: "A2", correct: true}
     ]
   }
 ]
)

如何在种子文件Rails中添加嵌套属性

1 个答案: