<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
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"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.tcm.training.admin.live.mapper.HealthCourseFavoriteRecordMapper">
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<select id="selectAppFavoriteCourses" resultType="com.tcm.training.admin.live.row.AppHealthCourseFavoriteRow">
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SELECT
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latest.course_id AS courseId,
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c.title AS title,
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c.cover_img AS coverImage,
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lc.name AS levelName,
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dc.name AS difficultyName,
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e.name AS teacherName,
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e.avatar AS teacherAvatar,
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c.learn_user_count AS learnUserCount,
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c.studying_count AS studyingCount,
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latest.action_time AS favoritedAt
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FROM (
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SELECT r.course_id, r.action_time, r.id
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FROM tcm_health_course_favorite_record r
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INNER JOIN (
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SELECT course_id, MAX(id) AS max_id
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FROM tcm_health_course_favorite_record
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WHERE app_user_id = #{appUserId}
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GROUP BY course_id
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) latest_record ON latest_record.max_id = r.id
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WHERE r.app_user_id = #{appUserId}
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AND r.action_type = 'FAVORITE'
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) latest
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INNER JOIN tcm_health_course c ON c.id = latest.course_id
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AND c.deleted = 0
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AND c.status = 1
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LEFT JOIN tcm_live_course_category lc ON lc.id = c.level_category_id AND lc.deleted = 0
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LEFT JOIN tcm_live_course_category dc ON dc.id = c.difficulty_category_id AND dc.deleted = 0
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LEFT JOIN tcm_expert e ON e.id = c.expert_id AND e.deleted = 0
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ORDER BY latest.action_time DESC, latest.id DESC
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</select>
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</mapper>
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