MemberTrainPositionsMapper.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.laowu.mapper.MemberTrainPositionsMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.laowu.model.MemberTrainPositionsDO">
        <id column="id" property="id" />
        <result column="create_date" property="createDate" />
        <result column="update_date" property="updateDate" />
        <result column="delete_date" property="deleteDate" />
        <result column="member_train_id" property="memberTrainId" />
        <result column="position_id" property="positionId" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        create_date,
        update_date,
        delete_date,
        id, member_train_id, position_id
    </sql>

    <select id="positionIds" parameterType="long" resultType="long">
        SELECT
            t.position_id
        FROM
            member_train_positions t
        WHERE
            t.delete_date IS NULL
            AND t.member_train_id = #{memberTrainId}
    </select>

    <select id="positions" parameterType="long" resultType="com.laowu.model.PositionDictDO">
      SELECT
            t2.*
        FROM
            member_train_positions t
            left join position_dict t2 on t.position_id = t2.id
        WHERE
            t.delete_date IS NULL
            and t2.delete_date is null
            AND t.member_train_id = #{memberTrainId}
    </select>

</mapper>