function getUserPaperDuration($uid, $courseId) { $tblUserSection = new DB_Haodu_UserSection(); $list = $tblUserSection->fetchAll("section_id", "where uid={$uid} and course_id={$courseId}"); if (!$list) { return 0; } $sectionIds = $tblUserSection->columnRow($list, "section_id"); $tblPractiseAnswerHistory = new DB_Haodu_PractiseAnswerHistory(); $practiseList = $tblPractiseAnswerHistory->fetchAll("practise_id", "where uid={$uid} and section_id in (" . implode(",", $sectionIds) . ")"); if (!$practiseList) { return 0; } $practiseIds = $tblPractiseAnswerHistory->columnRow($practiseList, "practise_id"); $tblCoursePractise = new DB_Haodu_CoursePractise(); $videoList = $tblCoursePractise->fetchAll("video_id", "where practise_id in (" . implode(",", $practiseIds) . ")"); if (!$videoList) { return 0; } $videoIds = $tblCoursePractise->columnRow($videoList, "video_id"); $tblUserVideo = new DB_Haodu_UserVideo(); $videoList = $tblUserVideo->fetchAll("video_id", "where uid={$uid} and video_id in (" . implode(",", $videoIds) . ")"); if (!$videoList) { return 0; } $videoIds = $tblCoursePractise->columnRow($videoList, "video_id"); $tblVideo = new DB_Haodu_CourseVideo(); $video = $tblVideo->scalar("sum(duration) as total_duration", "where id in (" . implode(',', $videoIds) . ")"); return (int) $video['total_duration']; }
/** * 临时::课程的学习时长 * 数据导入时没有对一些统计数据加处理.所以这里做了一个重新统计. */ public function getCourseDuration($courseId) { $tblSection = new DB_Haodu_CourseSection(); $list = $tblSection->fetchAll("video_id", "where course_id = {$courseId} and parent_id > 0"); if (!$list) { return 0; } $videoIds = array(); foreach ($list as $section) { $videoIds[] = $section['video_id']; } $tblVideo = new DB_Haodu_CourseVideo(); $sum = $tblVideo->scalar("sum(duration) as course_duration", "where id in (" . implode(',', $videoIds) . ")"); return $sum['course_duration']; }