<?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">
<!--
这个文件是自动生成的。
不要修改此文件。所有改动将在下次重新自动生成时丢失。
-->
<mapper namespace="com.ym.mec.biz.dal.dao.CourseHomeworkDao">
	
	<resultMap type="com.ym.mec.biz.dal.entity.CourseHomework" id="CourseHomework">
		<result column="id_" property="id" />
        <result column="group_type_" property="groupType" typeHandler="com.ym.mec.common.dal.CustomEnumTypeHandler"/>
		<result column="course_schedule_id_" property="courseScheduleId" />
		<result column="attachments_" property="attachments" />
		<result column="content_" property="content" />
		<result column="create_time_" property="createTime" />
		<result column="update_time_" property="updateTime" />
		<result column="music_group_id_" property="musicGroupId" />
		<result column="class_group_id_" property="classGroupId" />
		<result column="completed_num_" property="completedNum" />
		<result column="expect_num_" property="expectNum" />
		<result column="expiry_date_" property="expiryDate" />
	</resultMap>

	<resultMap type="com.ym.mec.biz.dal.dto.CourseHomeworkListDto" id="CourseHomeworkDto">
		<result column="id_" property="id" />
		<result column="course_schedule_id_" property="courseScheduleId" />
		<result column="content_" property="content" />
		<result column="create_time_" property="createTime" />
		<result column="start_class_time_" property="startClassTime" />
		<result column="music_group_id_" property="musicGroupId" />
		<result column="music_group_name_" property="musicGroupName" />
		<result column="class_group_id_" property="classGroupId" />
		<result column="class_group_name_" property="classGroupName" />
		<result column="completed_num_" property="completedNum" />
		<result column="expect_num_" property="expectNum" />
		<result column="expiry_date_" property="expiryDate" />
		<result column="remark_" property="remark" />
		<result column="status_" property="status" typeHandler="com.ym.mec.common.dal.CustomEnumTypeHandler"/>
		<result column="is_replied_" property="isReplied" typeHandler="com.ym.mec.common.dal.CustomEnumTypeHandler"/>
	</resultMap>
    
    <resultMap type="com.ym.mec.biz.dal.dto.Mapper" id="Mapper">
    	<result column="key_" property="key"/>
    	<result column="value_" property="value"/>
    </resultMap>
	
	<!-- 根据主键查询一条记录 -->
	<select id="get" resultMap="CourseHomework" >
		SELECT * FROM course_homework WHERE id_ = #{id} 
	</select>
	
	<!-- 全查询 -->
	<select id="findAll" resultMap="CourseHomework">
		SELECT * FROM course_homework ORDER BY id_
	</select>
	
	<!-- 向数据库增加一条记录 -->
	<insert id="insert" parameterType="com.ym.mec.biz.dal.entity.CourseHomework" useGeneratedKeys="true" keyColumn="id" keyProperty="id">
		<!--
		<selectKey resultClass="int" keyProperty="id" > 
		SELECT SEQ_WSDEFINITION_ID.nextval AS ID FROM DUAL 
		</selectKey>
		-->
		INSERT INTO course_homework (id_,group_type_,course_schedule_id_,attachments_,content_,create_time_,update_time_,music_group_id_,class_group_id_,completed_num_,expect_num_,expiry_date_) VALUES(#{id},#{groupType,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler},#{courseScheduleId},#{attachments},#{content},now(),now(),#{musicGroupId},#{classGroupId},#{completedNum},#{expectNum},#{expiryDate})
	</insert>
	
	<!-- 根据主键查询一条记录 -->
	<update id="update" parameterType="com.ym.mec.biz.dal.entity.CourseHomework">
		UPDATE course_homework
		<set>
			<if test="attachments != null">
				attachments_ = #{attachments},
			</if>
			<if test="id != null">
				id_ = #{id},
			</if>
			<if test="classGroupId != null">
				class_group_id_ = #{classGroupId},
			</if>
			<if test="courseScheduleId != null">
				course_schedule_id_ = #{courseScheduleId},
			</if>
			<if test="completedNum != null">
				completed_num_ = #{completedNum},
			</if>
			<if test="groupType != null">
				group_type_ = #{groupType,typeHandler=com.ym.mec.common.dal.CustomEnumTypeHandler},
			</if>

			<if test="expectNum != null">
				expect_num_ = #{expectNum},
			</if>
			<if test="content != null">
				content_ = #{content},
			</if>
			<if test="musicGroupId != null">
				music_group_id_ = #{musicGroupId},
			</if>
			<if test="expiryDate != null">
				expiry_date_ = #{expiryDate},
			</if>
			update_time_ = NOW()
		</set>
		WHERE id_ = #{id}
	</update>
	
	<!-- 根据主键删除一条记录 -->
	<delete id="delete" >
		DELETE FROM course_homework WHERE id_ = #{id} 
	</delete>

	<sql id="queryCondition">
		<where>
			(cs.del_flag_ != 1 OR cs.del_flag_ IS NULL)
			<if test="createTime != null">
				AND DATE_FORMAT(ch.create_time_,"%Y%m%d") = DATE_FORMAT(#{createTime},"%Y%m%d")
			</if>
			<if test="musicGroupId != null">
				and ch.music_group_id_ = #{musicGroupId}
			</if>
			<if test="classGroupId != null">
				and ch.class_group_id_ = #{classGroupId}
			</if>
			<if test="userId != null">
				and cs.actual_teacher_id_ = #{userId}
			</if>
		</where>
	</sql>
	
	<!-- 分页查询 -->
	<select id="queryPage" resultMap="CourseHomeworkDto" parameterType="map">
		SELECT
			ch.*,
			mg.name_ music_group_name_,
			cg.name_ class_group_name_,
			temp.next_class_date_
		FROM course_homework ch
		LEFT JOIN course_schedule cs ON ch.course_schedule_id_=cs.id_
		LEFT JOIN music_group mg ON ch.music_group_id_=mg.id_
		LEFT JOIN class_group cg ON ch.class_group_id_=cg.id_
		LEFT JOIN (SELECT
					class_group_id_,
					MIN(CONCAT( class_date_, ' ', start_class_time_ )) next_class_date_
					FROM
					course_schedule
					WHERE CONCAT( class_date_, ' ', start_class_time_ )>now()
					GROUP BY class_group_id_) temp ON ch.class_group_id_=temp.class_group_id_
		<include refid="queryCondition"/>
		ORDER BY ch.id_
		<include refid="global.limit"/>
	</select>
	
	<!-- 查询当前表的总记录数 -->
	<select id="queryCount" resultType="int">
		SELECT COUNT(*) FROM course_homework
	</select>

	<resultMap id="teacherHomeworkListDto" type="com.ym.mec.biz.dal.dto.TeacherHomeworkListDto">
		<result property="courseScheduleId" column="course_homework_id_"/>
		<result property="content" column="content_"/>
		<result property="expectNum" column="expect_num_"/>
		<result property="completedNum" column="completed_num_"/>
		<result property="courseScheduleName" column="course_schedule_name_"/>
		<result property="totalClassTimes" column="total_class_times_"/>
		<result property="currentClassTimes" column="current_class_times_"/>
		<result property="musicGroupId" column="music_group_id_"/>
		<result property="musicGroupName" column="music_group_name_"/>
		<result property="createTime" column="create_time_"/>
		<result property="day" column="day_"/>
		<result property="startClassTime" column="start_class_time_"/>
	</resultMap>

	<select id="findByClassGroupAndTeacher" resultMap="teacherHomeworkListDto">
		SELECT
			cs.id_ course_homework_id_,
			ch.content_,
			ch.create_time_,
			DATE_FORMAT(cs.class_date_,'%Y-%m-%d') 'day_',
			CONCAT( class_date_, ' ', start_class_time_ ) start_class_time_,
			ch.expect_num_,
			ch.completed_num_,
			cs.name_ course_schedule_name_,
			cg.total_class_times_,
			cg.current_class_times_,
			cg.music_group_id_,
			IF(cs.group_type_='MUSIC',mg.name_,NULL) music_group_name_
		FROM
			course_homework ch
			LEFT JOIN course_schedule cs ON ch.course_schedule_id_=cs.id_
			LEFT JOIN course_schedule_teacher_salary csts ON ch.course_schedule_id_=csts.course_schedule_id_
			LEFT JOIN class_group cg ON ch.class_group_id_=cg.id_
			LEFT JOIN music_group mg ON cg.music_group_id_=mg.id_
			WHERE
			(cs.del_flag_ != 1 OR cs.del_flag_ IS NULL)
			AND csts.user_id_=#{userId}
			<if test="classGroupId!=null">
				AND ch.class_group_id_=#{classGroupId}
			</if>
			<if test="createTime!=null">
				AND DATE_FORMAT(class_date_, '%Y-%m')=DATE_FORMAT(#{createTime}, '%Y-%m')
			</if>
		  ORDER BY ch.id_ DESC
	</select>
	<select id="countByClassGroupAndTeacher" resultType="int">
		SELECT
			COUNT(*)
		FROM
			course_homework ch
			LEFT JOIN course_schedule cs ON ch.course_schedule_id_=cs.id_
			LEFT JOIN course_schedule_teacher_salary csts ON ch.course_schedule_id_=csts.course_schedule_id_
			WHERE csts.user_id_=#{userId}
			<if test="classGroupId!=null">
				AND ch.class_group_id_=#{classGroupId}
			</if>
			<if test="createTime!=null">
				AND DATE_FORMAT(class_date_, '%Y-%m')=DATE_FORMAT(#{createTime}, '%Y-%m')
			</if>
	</select>
	<select id="findByTeacherAndCourseHomewok" resultMap="CourseHomework">
		SELECT
			ch.*
		FROM
			course_homework ch
			LEFT JOIN course_schedule_teacher_salary csts ON ch.course_schedule_id_=csts.course_schedule_id_
			WHERE ch.id_=#{courseHomeworkId} AND csts.user_id_=#{userId}
	</select>
	<select id="findByCourseSchedule" resultMap="CourseHomework">
		SELECT
			ch.*
		FROM
			course_homework ch
			WHERE ch.course_schedule_id_=#{courseScheduleId}
	</select>
	
	<select id="queryTeacerNoReplyNum" resultMap="Mapper">
		select cs.actual_teacher_id_ key_,count(1) value_ from student_course_homework sch
		left join course_schedule cs on sch.course_schedule_id_ = cs.id_
		where cs.del_flag_ = 0 AND cs.actual_teacher_id_ IS NOT NULL
		AND sch.is_replied_ = 0 group by cs.actual_teacher_id_
	</select>
	
	<delete id="delByCourseScheduleId" >
		DELETE FROM course_homework WHERE course_schedule_id_ = #{courseScheduleId} 
	</delete>
	
	<delete id="batchDelByCourseScheduleId" >
		DELETE FROM course_homework WHERE course_schedule_id_ IN
		<foreach collection="courseScheduleIdList" item="courseScheduleId" open="(" close=")" separator=",">
			#{courseScheduleId}
		</foreach>
	</delete>
</mapper>
