UniversalTestSoftware/client/libs/classes/mapper/InstructMapper.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.cbsd.universaltestsoftware_client.mapper.InstructMapper">





    <!-- 查找前一个兄弟 -->
    <select id="findPrevSibling" resultType="com.cbsd.universaltestsoftware_client.entity.Instruct">
        SELECT *
        FROM instruct
        WHERE sort &lt; #{sort}
        AND invocation_id = #{invocationId}
          AND parent_encoding= #{parentEncoding}
        ORDER BY sort DESC
            LIMIT 1
    </select>

    <!-- 查找后一个兄弟 -->
    <select id="findNextSibling" resultType="com.cbsd.universaltestsoftware_client.entity.Instruct">
        SELECT *
        FROM instruct
        WHERE sort > #{sort}
        AND invocation_id = #{invocationId}
          AND parent_encoding= #{parentEncoding}
        ORDER BY sort ASC
            LIMIT 1
    </select>


    <!-- 更新指令（至少更新 sort） -->
    <update id="updateSort">
        UPDATE instruct
        SET sort = #{sort}
        WHERE instruct_id = #{instructId}
    </update>


    <!-- 全局重排 -->
    <update id="reorderGlobalSortContinuous">
        UPDATE instruct t
            JOIN (
            SELECT instruct_id,
            (@rn := @rn + 1) AS rn
            FROM   (SELECT * FROM instruct WHERE invocation_id = #{invocationId} ORDER BY sort) tmp,
            (SELECT @rn := 0) init
            ) r ON t.instruct_id = r.instruct_id
            SET t.sort = r.rn
        WHERE t.invocation_id = #{invocationId}
    </update>


    <!-- 根据 ids + invocationId 查询 -->
    <select id="selectByIdsAndInvocation" resultType="com.cbsd.universaltestsoftware_client.entity.Instruct">
        SELECT * FROM instruct
        WHERE instruct_id IN
        <foreach collection="ids" item="id" open="(" separator="," close=")">
            #{id}
        </foreach>
        AND invocation_id = #{invocationId}
    </select>

    <!-- 置零 sort -->
    <update id="setSortZeroByIds">
        UPDATE instruct
        SET sort = 0
        WHERE instruct_id IN
        <foreach collection="ids" item="id" open="(" separator="," close=")">
            #{id}
        </foreach>
    </update>

    <!-- 整棵子树（多个前缀） -->
    <select id="listByInvocationAndEncodingPrefix" resultType="com.cbsd.universaltestsoftware_client.entity.Instruct">
        SELECT * FROM instruct
        WHERE invocation_id = #{invocationId}
        <foreach collection="encodings" item="enc" open="AND (" close=")" separator="OR">
            encoding LIKE CONCAT(#{enc},'%')
        </foreach>
        ORDER BY encoding
    </select>
    <select id="listByParentEncodingAndInvocation"
            resultType="com.cbsd.universaltestsoftware_client.entity.Instruct">
        SELECT * FROM instruct
        WHERE invocation_id   = #{invocationId}
          AND parent_encoding = #{parentCode}
        ORDER BY sort
    </select>


    <update id="shiftSortAfter">
        UPDATE instruct
        SET sort = sort + 1
        WHERE invocation_id = #{invocationId}
          AND sort >= #{sort} and instruct_id !=#{instructId}
    </update>
    <update id="minusSort">
        UPDATE instruct
        SET sort = sort - 1
        WHERE invocation_id = #{invocationId}
          AND sort &gt;= #{oldSort}
          AND sort &lt;= #{newSort}
          AND instruct_id != #{instructId}
    </update>
    <update id="plusSort">
        UPDATE instruct
        SET sort = sort + 1
        WHERE invocation_id = #{invocationId}
          AND sort &gt;= #{newSort}
          AND sort &lt;= #{oldSort}
          AND instruct_id != #{instructId}
    </update>


</mapper>