81 lines
2.5 KiB
XML
81 lines
2.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.sqx.modules.course.dao.CourseCollectDao">
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<select id="selectCourseByCollect" resultType="com.sqx.modules.course.entity.Course">
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SELECT
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MAX(u.update_time) AS produceEndTime,
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c.*,
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d1.course_details_name AS courseDetailsName,
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d1.course_details_id AS courseDetailsId,
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COUNT(d2.course_details_id) AS courseDetailsCount
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FROM
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course_collect u
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LEFT JOIN
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course c ON u.course_id = c.course_id
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LEFT JOIN
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course_collect cc1 ON cc1.course_id = u.course_id
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AND cc1.classify = 3
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AND cc1.user_id = #{userId}
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LEFT JOIN
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course_details d1 ON cc1.course_details_id = d1.course_details_id
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LEFT JOIN
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course_details d2 ON d2.course_id = c.course_id
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WHERE
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u.user_id = #{userId}
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AND c.course_id IS NOT NULL
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AND u.classify = #{classify}
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GROUP BY
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u.course_id, c.course_id
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ORDER BY
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produceEndTime DESC;
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<!-- SELECT
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MAX( u.update_time ) AS produceEndTime,
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c.*,
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(
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SELECT
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d.course_details_name
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FROM
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course_collect cc
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LEFT JOIN course_details d ON cc.course_details_id = d.course_details_id
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WHERE
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d.course_id = u.course_id
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AND cc.classify = 3 and cc.user_id=#{userId}
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ORDER BY
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cc.update_time DESC
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LIMIT 1
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) AS courseDetailsName,
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(
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SELECT
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d.course_details_id
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FROM
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course_collect cc
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LEFT JOIN course_details d ON cc.course_details_id = d.course_details_id
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WHERE
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d.course_id = u.course_id
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AND cc.classify = 3 and cc.user_id=#{userId}
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ORDER BY
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cc.update_time DESC
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LIMIT 1
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) AS courseDetailsId,
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( SELECT count(*) FROM course_details d WHERE d.course_id = c.course_id ) AS courseDetailsCount
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FROM
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course_collect u
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LEFT JOIN course c ON u.course_id = c.course_id
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WHERE
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u.user_id = #{userId}
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AND c.course_id IS NOT NULL
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AND u.classify = #{classify}
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GROUP BY
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u.course_id
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ORDER BY
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produceEndTime DESC
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-->
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</select>
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</mapper>
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