mec/mec-biz/src/main/resources/config/mybatis/LessonCoursewareMapper.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.ym.mec.biz.dal.mapper.LessonCoursewareMapper">

    <sql id="selectPageSql">
        <where>
            <if test="param.studentId != null">
                AND (lc.student_range_type_ == 'ALL' OR (lcum.user_id_ = #{param.studentId} AND lcum.user_type_ = 'STUDENT'))
            </if>
            <if test="param.teacherId != null">
                AND (lc.teacher_range_type_ == 'ALL' OR (lcum.user_id_ = #{param.teacherId} AND lcum.user_type_ = 'TEACHER'))
            </if>
            <if test="param.lessonCoursewareIds != null">
                and lc.lesson_course_id_ IN
                <foreach collection="param.lessonCoursewareIds" item="lessonCoursewareId" open="(" close=")" separator=",">
                    #{lessonCoursewareId}
                </foreach>
            </if>
            <if test="param.subjectId != null">
                and lc.id_subject_id_ = #{param.subjectId}
            </if>
            <if test="param.studentRangeType != null and param.studentRangeType != ''">
                and lc.student_range_type_ = #{param.studentRangeType}
            </if>
            <if test="param.teacherRangeType != null and param.teacherRangeType != ''">
                and lc.teacher_range_type_ = #{param.teacherRangeType}
            </if>
            <if test="param.enable != null">
                and lc.id_enable_ = #{param.enable}
            </if>
        </where>
    </sql>
    <select id="selectPage" resultType="com.ym.mec.biz.dal.wrapper.LessonCoursewareWrapper$LessonCoursewareDto">
        select lc.id_ id, lc.subject_id_ subjectId, lc.lesson_course_id_ lessonCoursewareId, lc.enable_ enable,
               lc.student_range_type_ studentRangeType, lc.teacher_range_type_ teacherRangeType
        from lesson_courseware lc
        left join lesson_courseware_user_mapper lcum ON lcum.lesson_courseware_id_ = lc.id_
        <include refid="selectPageSql"/>
        GROUP BY lc.id_
        order by lc.create_time_ desc
	</select>
    <select id="selectList" resultType="com.ym.mec.biz.dal.wrapper.LessonCoursewareWrapper$LessonCoursewareDto">
        select lc.id_ id, lc.subject_id_ subjectId, lc.lesson_course_id_ lessonCoursewareId, lc.enable_ enable from lesson_courseware lc
        left join lesson_courseware_user_mapper lcum ON lcum.lesson_courseware_id_ = lc.id_
        <include refid="selectPageSql"/>
        GROUP BY lc.id_
        order by lc.create_time_ desc
	</select>
    <select id="getLessonCoursewareSubjectList" resultMap="com.ym.mec.biz.dal.dao.SubjectDao.Subject">
        select s.* from lesson_courseware lc
        left join subject s on s.id_ = lc.subject_id_
        where lc.subject_id_ IS NOT NULL
        group by lc.subject_id_
    </select>
</mapper>