manHourHousekeeper/fhKeeper/formulahousekeeper/management-platform/src/main/resources/mapper/ProjectLeaderMapper.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.management.platform.mapper.ProjectLeaderMapper">

    <!-- 通用查询映射结果 -->
    <resultMap id="BaseResultMap" type="com.management.platform.entity.ProjectLeader">
        <id column="id" property="id" />
        <result column="project_id" property="projectId" />
        <result column="leader_id" property="leaderId" />
    </resultMap>

    <!-- 通用查询结果列 -->
    <sql id="Base_Column_List">
        id, project_id, leader_id
    </sql>

    <select id="selectCountIsLeader" resultType="java.lang.Integer">
        select count(*) from task t
                                 INNER JOIN project p on t.project_id=p.id
                                 INNER JOIN project_leader pl  on pl.project_id=p.id
        where t.id=#{taskId} and t.task_plan=1 and pl.leader_id=#{userId}
    </select>

</mapper>