AI_Backend_Serve/education-business/src/main/resources/mapper/education/TestPaperInfoMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.education.business.mapper.education.TestPaperInfoMapper">

    <select id="selectPageList" resultType="testPaperInfoDto">
        select paper.*, subject.name subject_name, grade.name gradeInfoName from test_paper_info paper
        left join grade_info grade on paper.grade_info_id = grade.id
        left join subject_info subject on paper.subject_id = subject.id
        <where>

            <if test="testPaperInfo.gradeInfoId != null">
                and paper.grade_info_id = #{testPaperInfo.gradeInfoId}
            </if>

            <if test="testPaperInfo.name != null and testPaperInfo.name != ''">
                <bind name="name" value="'%' + testPaperInfo.name+ '%'"/>
                and paper.name like #{name}
            </if>

            <if test="testPaperInfo.subjectId != null">
                and paper.subject_id = #{testPaperInfo.subjectId}
            </if>

            <if test="testPaperInfo.publishFlag != null and testPaperInfo.publishFlag">
                and paper.publish_flag = 1
            </if>
        </where>
        order by paper.id desc
    </select>


    <!-- 试卷试题列表 -->
    <select id="selectPaperQuestionList" resultType="testPaperQuestionDto">
        select
          b.id, a.id question_info_id, a.content, b.sort, b.mark,

          <if test="testPaperQuestionRequest.showAnswer">
              a.answer,
          </if>
          b.test_paper_info_id, a.question_type, a.options
          from question_info a inner join test_paper_question_info b
        on a.id = b.question_info_id inner join test_paper_info c
        on b.test_paper_info_id = c.id where c.id = #{testPaperQuestionRequest.testPaperInfoId}
        <if test="testPaperQuestionRequest.questionType != null">
            and a.question_type = #{testPaperQuestionRequest.questionType}
        </if>

        <if test="testPaperQuestionRequest.content != null and testPaperQuestionRequest.content != ''">
            <bind name="content" value="'%' + testPaperQuestionRequest.content + '%'"/>
            and a.content like #{content}
        </if>
        order by b.sort asc
    </select>

</mapper>