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) $video['total_duration'];
}
/**
* 课程下用户答题数量
*/
public function getUserCoursePractiseNum($uid, $courseId)
{
$sectionIds = $this->getUserCourseSection($uid, $courseId);
if (!$sectionIds) {
return 0;
}
$sectionIds = array_keys($sectionIds);
$tblUserPractise = new DB_Haodu_PractiseAnswerHistory();
return $tblUserPractise->queryCount("where uid={$uid} and section_id in (" . implode(",", $sectionIds) . ")");
}
/**
* 回答历史
*/
public function insertAnswer($sectionId, $uid, $practiseId, $optionId, $answerId)
{
$time = time();
$data = array("section_id" => $sectionId, "uid" => $uid, "practise_id" => $practiseId, "option_id" => $optionId, "answer_id" => $answerId, "create_time" => $time);
$this->deleteAnswer($sectionId, $uid, $practiseId);
$tbl = new DB_Haodu_PractiseAnswerHistory();
return $tbl->insert($data);
}
