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370 lines
9.4 KiB
370 lines
9.4 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Gradebook link to student publication item
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* @author Bert Steppé
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* @package chamilo.gradebook
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*/
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class StudentPublicationLink extends AbstractLink
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{
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private $studpub_table = null;
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private $itemprop_table = null;
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/**
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* Constructor
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*/
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public function __construct()
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{
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parent::__construct();
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$this->set_type(LINK_STUDENTPUBLICATION);
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}
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/**
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*
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* Returns the URL of a document
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* This function is loaded when using a gradebook as a tab (gradebook = -1)
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* see issue #2705
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*
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*/
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public function get_view_url($stud_id)
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{
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// find a file uploaded by the given student,
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// with the same title as the evaluation name
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$eval = $this->get_evaluation();
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$stud_id = intval($stud_id);
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$sql = 'SELECT pub.url
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FROM '.$this->get_itemprop_table().' prop, '.$this->get_studpub_table().' pub'
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." WHERE
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prop.c_id = ".$this->course_id." AND
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pub.c_id = ".$this->course_id." AND
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prop.tool = 'work'"
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.' AND prop.insert_user_id = '.$stud_id
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.' AND prop.ref = pub.id'
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." AND pub.title = '".Database::escape_string($eval->get_name())."' AND pub.session_id=".api_get_session_id()."";
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$result = Database::query($sql);
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if ($fileurl = Database::fetch_row($result)) {
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return null;
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} else {
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return null;
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}
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}
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public function get_type_name()
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{
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return get_lang('Works');
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}
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public function is_allowed_to_change_name()
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{
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return false;
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}
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/**
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* Generate an array of exercises that a teacher hasn't created a link for.
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* @return array 2-dimensional array - every element contains 2 subelements (id, name)
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*/
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public function get_not_created_links()
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{
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return false;
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if (empty($this->course_code)) {
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die('Error in get_not_created_links() : course code not set');
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}
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$tbl_grade_links = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
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$sql = 'SELECT id, url from '.$this->get_studpub_table()
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.' pup WHERE c_id = '.$this->course_id.' AND has_properties != '."''".' AND id NOT IN'
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.' (SELECT ref_id FROM '.$tbl_grade_links
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.' WHERE type = '.LINK_STUDENTPUBLICATION
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." AND course_code = '".Database::escape_string($this->get_course_code())."'"
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.') AND pub.session_id='.api_get_session_id().'';
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$result = Database::query($sql);
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$cats=array();
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while ($data=Database::fetch_array($result)) {
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$cats[] = array ($data['id'], $data['url']);
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}
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return $cats;
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}
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/**
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* Generate an array of all exercises available.
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* @return array 2-dimensional array - every element contains 2 subelements (id, name)
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*/
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public function get_all_links()
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{
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if (empty($this->course_code)) {
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die('Error in get_not_created_links() : course code not set');
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}
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$tbl_grade_links = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
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$session_id = api_get_session_id();
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/*
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if (empty($session_id)) {
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$session_condition = api_get_session_condition(0, true);
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} else {
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$session_condition = api_get_session_condition($session_id, true, true);
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}
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$sql = "SELECT id, url, title FROM $tbl_grade_links
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WHERE c_id = {$this->course_id} AND filetype='folder' AND active = 1 $session_condition ";*/
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//Only show works from the session
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//AND has_properties != ''
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$sql = "SELECT id, url, title FROM $tbl_grade_links
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WHERE
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c_id = {$this->course_id} AND
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active = 1 AND
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filetype='folder' AND
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session_id = ".api_get_session_id()."";
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$result = Database::query($sql);
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while ($data = Database::fetch_array($result)) {
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$work_name = $data['title'];
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if (empty($work_name)) {
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$work_name = basename($data['url']);
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}
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$cats[] = array ($data['id'], $work_name);
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}
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$cats=isset($cats) ? $cats : array();
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return $cats;
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}
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/**
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* Has anyone done this exercise yet ?
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*/
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public function has_results()
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{
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$tbl_grade_links = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
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$sql = 'SELECT count(*) AS number FROM '.$tbl_grade_links."
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WHERE c_id = {$this->course_id} AND
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parent_id = '".intval($this->get_ref_id())."' AND
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session_id =".api_get_session_id()."";
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$result = Database::query($sql);
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$number = Database::fetch_row($result);
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return ($number[0] != 0);
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}
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/**
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* @param null $stud_id
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* @return array|null
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*/
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public function calc_score($stud_id = null, $type = null)
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{
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$stud_id = intval($stud_id);
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$table = Database::get_course_table(TABLE_STUDENT_PUBLICATION);
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$sql = 'SELECT * FROM '.$table."
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WHERE
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c_id = {$this->course_id} AND
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id = '".intval($this->get_ref_id())."' AND
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session_id = ".api_get_session_id()."
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"
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;
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$query = Database::query($sql);
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$assignment = Database::fetch_array($query);
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if (count($assignment) == 0) {
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$parentId = '0';
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} else {
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$parentId = $assignment['id'];
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}
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$sql = 'SELECT * FROM '.$table.'
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WHERE
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c_id = '.$this->course_id.' AND
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active = 1 AND
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parent_id = "'.$parentId.'" AND
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session_id = '.api_get_session_id() .' AND
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qualificator_id <> 0
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';
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if (!empty($stud_id)) {
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$sql .= " AND user_id = $stud_id ";
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}
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$order = api_get_configuration_value('student_publication_to_take_in_gradebook');
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switch ($order) {
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case 'last':
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// latest attempt
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$sql .= ' ORDER BY sent_date DESC';
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break;
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case 'first':
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default:
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// first attempt
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$sql .= ' ORDER BY id';
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break;
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}
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$scores = Database::query($sql);
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// for 1 student
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if (!empty($stud_id)) {
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if ($data = Database::fetch_array($scores)) {
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return array(
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$data['qualification'],
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$assignment['qualification']
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);
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} else {
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return '';
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}
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} else {
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$students = array(); // user list, needed to make sure we only
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// take first attempts into account
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$rescount = 0;
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$sum = 0;
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$bestResult = 0;
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$weight = 0;
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$sumResult = 0;
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$myResult = 0;
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while ($data = Database::fetch_array($scores)) {
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if (!(array_key_exists($data['user_id'], $students))) {
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if ($assignment['qualification'] != 0) {
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$students[$data['user_id']] = $data['qualification'];
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$rescount++;
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$sum += $data['qualification'] / $assignment['qualification'];
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$sumResult += $data['qualification'];
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if ($data['qualification'] > $bestResult) {
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$bestResult = $data['qualification'];
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}
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$weight = $assignment['qualification'];
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}
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}
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}
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if ($rescount == 0) {
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return null;
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} else {
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switch ($type) {
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case 'best':
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return array($bestResult, $weight);
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break;
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case 'average':
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return array($sumResult/$rescount, $weight);
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break;
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case 'ranking':
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return AbstractLink::getCurrentUserRanking($students);
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break;
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default:
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return array($sum, $rescount);
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break;
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}
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}
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}
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}
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/**
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* Lazy load function to get the database table of the student publications
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*/
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private function get_studpub_table()
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{
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return $this->studpub_table = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
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}
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/**
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* Lazy load function to get the database table of the item properties
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*/
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private function get_itemprop_table()
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{
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return $this->itemprop_table = Database :: get_course_table(TABLE_ITEM_PROPERTY);
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}
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public function needs_name_and_description()
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{
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return false;
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}
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public function get_name()
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{
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$this->get_exercise_data();
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return (isset($this->exercise_data['title']) && !empty($this->exercise_data['title'])) ? $this->exercise_data['title'] : get_lang('Untitled');
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}
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public function get_description()
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{
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$this->get_exercise_data();
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return isset($this->exercise_data['description']) ? $this->exercise_data['description'] : null;
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}
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public function get_test_id()
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{
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return 'DEBUG:ID';
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}
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public function get_link()
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{
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$session_id = api_get_session_id();
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$url = api_get_path(WEB_PATH).'main/work/work.php?session_id='.$session_id.'&cidReq='.$this->get_course_code().'&id='.$this->exercise_data['id'].'&gradebook=view';
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return $url;
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}
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private function get_exercise_data()
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{
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$tbl_name = $this->get_studpub_table();
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$course_info = api_get_course_info($this->get_course_code());
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if ($tbl_name=='') {
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return false;
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} elseif (!isset($this->exercise_data)) {
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$sql = 'SELECT * FROM '.$this->get_studpub_table()."
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WHERE
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c_id ='".$course_info['real_id']."' AND
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id = '".intval($this->get_ref_id())."' ";
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$query = Database::query($sql);
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$this->exercise_data = Database::fetch_array($query);
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}
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return $this->exercise_data;
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}
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public function needs_max()
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{
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return false;
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}
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public function needs_results()
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{
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return false;
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}
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public function is_valid_link()
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{
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$sql = 'SELECT count(id) FROM '.$this->get_studpub_table().'
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WHERE c_id = "'.$this->course_id.'" AND id = '.intval($this->get_ref_id()).'';
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$result = Database::query($sql);
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$number = Database::fetch_row($result);
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return ($number[0] != 0);
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}
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public function get_icon_name()
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{
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return 'studentpublication';
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}
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public function save_linked_data()
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{
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$weight = (float)$this->get_weight();
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$ref_id = $this->get_ref_id();
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if (!empty($ref_id)) {
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//Cleans works
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$sql = 'UPDATE '.$this->get_studpub_table().' SET weight= '.$weight.'
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WHERE c_id = '.$this->course_id.' AND id ='.$ref_id;
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Database::query($sql);
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}
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}
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public function delete_linked_data()
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{
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$ref_id = $this->get_ref_id();
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if (!empty($ref_id)) {
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//Cleans works
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$sql = 'UPDATE '.$this->get_studpub_table().' SET weight=0
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WHERE c_id = '.$this->course_id.' AND id ='.$ref_id;
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Database::query($sql);
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}
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}
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}
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