Question

我刚开始在rails上学习ruby，我正在使用这段代码来获取问题模型的json表示

post "api/quizzes/addquestion/#{@quiz.id}",
        { question: 
        { text: "Question Text Example", mark: 2, choices:["a","b","c","d"], right_answer: "a" }    
        }.to_json

我得到了：选择：[]，空数组我不知道其原因，因为所有其他属性都是成功发送的。这个问题的解决方案是什么

我在测试以下方法时使用它：

def add_question
            question = Question.new(question_params)
            quiz = Quiz.find(params[:quiz_id])
            if question.save
                quiz.questions << question
                render json: { success: true, data:{:question => question}, info:{} }, status: 201
            else
                render json: { success: false, data:{}, :info => question.errors }, status: 422
            end
        end
def question_params
            params.require(:question).permit(:text, :mark, :choice, :right_answer)
        end

测试：

class AddingQuestionsTest < ActionDispatch::IntegrationTest 
    setup {@quiz = Quiz.create(name: 'Quiz1', subject: 'physics', duration: 10, no_of_MCQ: 5, no_of_rearrangeQ: 5)}
    setup {@question = Question.create(text: "Question Text Example", mark: 2, choices:["a","b","c","d"], right_answer: "a")}   

    test 'successes to add question to a quiz' do       
        post "api/quizzes/addquestion/#{@quiz.id}",
        { question: 
        { text: "Question Text Example", mark: 2, choices:["a","b","c","d"], right_answer: "a" }    
        }.to_json,
        { 'Accept' => Mime::JSON, 'Content-Type' => Mime::JSON.to_s }       
        question_response = json(response.body)
        assert_equal 201, response.status   
        assert_equal @quiz.questions.first, @question
        assert_equal publish_response[:success], true
    end         
end

这是问题模型： class Question＆lt;的ActiveRecord :: Base的 serialize：choices，Array belongs_to：测验结束当我运行测试时，我失败了：assert_equal @ quiz.questions.first，@ items 选择：[] 选择：[“a”，“b”，“c”，“d”]

Answer 1

我们需要改变

def question_params
            params.require(:question).permit(:text, :mark, :choice, :right_answer)
        end
to
def question_params
            params.require(:question).permit(:text, :mark, :right_answer, :choice => [])
        end

使用to_json时处理数组

1 个答案: