LingandRX
8150192b1b
- 新增 Category、Collection、Comment 等实体类 - 实现笔记查询、分类、收藏、评论等功能 - 添加 Markdown 解析工具类 - 新增用户点赞和收藏功能 - 实现问题查询和统计功能
81 lines
3.2 KiB
XML
81 lines
3.2 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.example.copykamanotes.mapper.QuestionListItemMapper">
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<insert id="insert">
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INSERT INTO question_list_item (question_list_id, question_id, `rank`)
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VALUES (#{questionListId}, #{questionId}, #{rank})
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</insert>
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<resultMap id="QuestionListItemVOResultMap" type="com.example.copykamanotes.model.vo.questionListItem.QuestionListItemVO">
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<id property="questionListId" column="question_list_id"/>
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<id property="rank" column="rank"/>
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<association property="question"
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javaType="com.example.copykamanotes.model.vo.question.BaseQuestionVO">
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<id property="questionId" column="question.question_id"/>
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<result property="title" column="question.title"/>
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<result property="viewCount" column="question.view_count"/>
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<result property="examPoint" column="question.exam_point"/>
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<result property="difficulty" column="question.difficulty"/>
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<result property="categoryId" column="question.category_id"/>
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</association>
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</resultMap>
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<sql id="findByIdSelectClause">
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SELECT qli.question_list_id,
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qli.rank,
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q.question_id AS "question.question_id",
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q.title AS "question.title",
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q.view_count AS "question.view_count",
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q.exam_point AS "question.exam_point",
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q.difficulty AS "question.difficulty",
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q.category_id AS "question.category_id"
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FROM question_list_item qli
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LEFT JOIN question q
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ON qli.question_id = q.question_id
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WHERE qli.question_list_id = #{questionListId}
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ORDER BY qli.rank
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</sql>
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<select id="findByQuestionListId" resultMap="QuestionListItemVOResultMap">
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<include refid="findByIdSelectClause"/>
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</select>
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<select id="countByQuestionListId" resultType="int">
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SELECT COUNT(*)
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FROM question_list_item
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WHERE question_list_id = #{questionListId}
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</select>
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<select id="findByQuestionListIdPage" resultMap="QuestionListItemVOResultMap">
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<include refid="findByIdSelectClause" />
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LIMIT #{limit} OFFSET #{offset}
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</select>
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<delete id="deleteByQuestionListIdAndQuestionId">
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DELETE
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FROM question_list_item
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WHERE question_list_id = #{questionListId}
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AND question_id = #{questionId}
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</delete>
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<delete id="deleteByQuestionListId">
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DELETE
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FROM question_list_item
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WHERE question_list_id = #{questionListId}
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</delete>
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<select id="nextRank" resultType="int">
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SELECT COALESCE(MAX(`rank`), 0) + 1
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FROM `question_list_item`
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WHERE `question_list_id` = ${questionListId};
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</select>
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<update id="updateQuestionRank" parameterType="com.example.copykamanotes.model.entity.QuestionListItem">
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UPDATE `question_list_item`
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SET `rank` = #{rank}
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WHERE `question_list_id` = #{questionListId}
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AND `question_id` = #{questionId}
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</update>
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</mapper>
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