CourseContentMapper.xml
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<?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.CourseContentMapper">
<!-- 通用查询映射结果 -->
<resultMap id="BaseResultMap" type="com.subsidy.model.CourseContentDO">
<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="course_id" property="courseId" />
<result column="content" property="content" />
<result column="order_no" property="orderNo" />
</resultMap>
<!-- 通用查询结果列 -->
<sql id="Base_Column_List">
create_date,
update_date,
delete_date,
id, course_id, content, order_no
</sql>
<select id="getCourseVods" parameterType="long" resultType="com.subsidy.model.VodDictDO">
SELECT
t2.id,
t2.content_id,
t2.vod_name,
t2.vod_length,
t2.vod_type,
t2.vod_size,
t2.vod_url,
t2.vod_code,
t2.teacher_name,
t2.cover_page
FROM
course_content t
LEFT JOIN vod_dict t2 ON t.id = t2.content_id
WHERE
t.delete_date IS NULL
AND t2.delete_date IS NULL
and t.course_id = #{courseId}
and t2.id is not null
</select>
<select id="contentVodProcess" resultType="com.subsidy.vo.member.MemberVodVO">
SELECT
t3.id,
t3.vod_url,
t3.vod_name,
t3.vod_type,
t3.vod_length,
t3.play_record,
IF
( t3.vod_length - t3.sumPlay > 0, t3.vod_length - t3.sumPlay, 0 ) AS leftLength,
round( t3.sumPlay * 100 / t3.vod_length, 0 ) AS percent
FROM
(
SELECT
t.id,
t.vod_url,
t.vod_name,
t.vod_type,
t.vod_length,
t.order_no,
ifnull( t2.sumPlay, 0 ) AS sumPlay,
t4.play_record
FROM
vod_dict t
LEFT JOIN (
SELECT
t.vod_id,
t.member_id,
sum( t.play_length ) AS sumPlay
FROM
vod_play_history t
WHERE
t.member_id = #{memberId}
GROUP BY
t.vod_id,
t.member_id
) t2 ON t.id = t2.vod_id
LEFT JOIN (
SELECT
t.member_id,
t.vod_id,
t2.play_record
FROM
(
SELECT
t.member_id,
t.vod_id,
max( t.create_date ) AS create_date
FROM
vod_play_history t
WHERE
t.delete_date IS NULL
AND t.member_id = #{memberId}
GROUP BY
t.member_id,
t.vod_id
) t
LEFT JOIN vod_play_history t2 ON t.vod_id = t2.vod_id
AND t.member_id = t2.member_id
AND t.create_date = t2.create_date
) t4 ON t2.vod_id = t4.vod_id
WHERE
t.content_id = #{contentId}
) t3
ORDER BY
t3.order_no
</select>
<select id="contentFiles" parameterType="long" resultType="com.subsidy.model.FileDictDO">
SELECT
t2.id,
t2.file_name,
t2.file_size,
t2.file_type,
t2.file_url
FROM
course_content t
LEFT JOIN file_dict t2 ON t.id = t2.content_id
WHERE
t.delete_date IS NULL
AND t2.delete_date IS NULL
AND t2.id IS NOT NULL
AND t.course_id = #{courseId}
ORDER BY
t.order_no,
t2.order_no
</select>
<select id="selectMaxOrderNo" parameterType="long" resultType="integer">
SELECT
max(t.order_no)
FROM
course_content t
WHERE
t.delete_date IS NULL
AND t.course_id = #{courseId}
</select>
</mapper>