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) $video['total_duration'];
}
/**
* 章节列表array('chapter_id'=> array(array(节信息))
*/
public function getSectionList($cid)
{
$tblSection = new DB_Haodu_CourseSection();
$list = $tblSection->fetchAll("id, video_id, course_id, parent_id as chapter_id, name, seq", "where course_id = {$cid} and parent_id > 0", "order by seq asc");
$tblVideo = new DB_Haodu_CourseVideo();
foreach ($list as &$section) {
$video = $tblVideo->fetchRow($section['video_id'], "duration");
$section['duration'] = $video['duration'];
$section['duration_fmt'] = sprintf("%'.02d", floor($video['duration'] / 60)) . ":" . sprintf("%'.02d", $video['duration'] % 60);
}
$list = $tblSection->map($list, "chapter_id");
return $list;
}
public function incrDislikeNum($videoId, $num = 1)
{
$tblVideo = new DB_Haodu_CourseVideo();
$tblVideo->increase($videoId, array("dislike_num" => $num));
}