RankDictMapper.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.subsidy.mapper.RankDictMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.subsidy.model.RankDictDO">
        <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="rank" property="rank" />
    </resultMap>

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

    <select id="queryCourseRanks" parameterType="long" resultType="com.subsidy.model.RankDictDO">
        SELECT
            t2.*
        FROM
            course_rank_mapping t
            LEFT JOIN rank_dict t2 ON t.rank_id = t2.id
        WHERE
            t.delete_date IS NULL
            AND t2.delete_date IS NULL
            AND t.course_id = #{courseId}
    </select>

    <select id="queryCompanyRanks" parameterType="long" resultType="com.subsidy.model.RankDictDO">
        select * from rank_dict t where t.delete_date is null
        <if test="companyId!=null and companyId != ''">
            and t.company_id = #{companyId}
        </if>
        <if test="companyId == null">
            and t.company_id is null
        </if>
    </select>

</mapper>