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284 lines
9.1 KiB
284 lines
9.1 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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/**
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* Class
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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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// INTERNAL VARIABLES
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private $studpub_table = null;
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private $itemprop_table = null;
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// CONSTRUCTORS
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function StudentPublicationLink() {
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$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 funcion is loaded when using a gradebook as a tab (gradebook = -1), see issue #2705
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*
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*/
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public function get_view_url ($stud_id) {
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// find a file uploaded by the given student,
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// with the same title as the evaluation name
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$eval = $this->get_evaluation();
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$stud_id = intval($stud_id);
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$sql = 'SELECT pub.url FROM '.$this->get_itemprop_table().' prop, '.$this->get_studpub_table().' pub'
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." WHERE 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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$course_info = Database :: get_course_info($this->get_course_code());
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//$url = api_get_path(WEB_PATH).'main/gradebook/open_document.php?file='.$course_info['directory'].'/'.$fileurl[0];
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//return $url;
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return null;
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return null;
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} else {
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return null;
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}
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}
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public function get_type_name() {
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return get_lang('DokeosStudentPublications');
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}
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public function is_allowed_to_change_name() {
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return false;
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}
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// FUNCTIONS IMPLEMENTING ABSTRACTLINK
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/**
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* Generate an array of exercises that a teacher hasn't created a link for.
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* @return array 2-dimensional array - every element contains 2 subelements (id, name)
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*/
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public function get_not_created_links() {
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if (empty($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 '.$this->get_studpub_table()
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.' pup WHERE has_properties != '."''".' AND id NOT IN'
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.' (SELECT ref_id FROM '.$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 $cats;
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}
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/**
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* Generate an array of all exercises available.
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* @return array 2-dimensional array - every element contains 2 subelements (id, name)
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*/
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public function get_all_links() {
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if (empty($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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$course_info = api_get_course_info($this->course_code);
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$tbl_grade_links = Database :: get_course_table(TABLE_STUDENT_PUBLICATION);
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$sql = "SELECT id, url FROM $tbl_grade_links
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WHERE c_id = {$course_info['real_id']} AND has_properties != '' AND filetype='folder' AND 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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$cats[] = array ($data['id'], basename($data['url']));
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}
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$cats=isset($cats) ? $cats : array();
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return $cats;
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}
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/**
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* Has anyone done this exercise yet ?
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*/
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public function has_results() {
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$course_info = api_get_course_info($this->course_code);
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$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 = {$course_info['real_id']} AND
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parent_id = '".intval($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 ($number[0] != 0);
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}
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public function calc_score($stud_id = null) {
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$course_info = Database :: get_course_info($this->get_course_code());
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$database_name = (empty($course_info['db_name']))?$course_info['dbName']:$course_info['db_name'];
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$tbl_stats = Database :: get_course_table(TABLE_STUDENT_PUBLICATION, $database_name);
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if (is_null($database_name)===true) {
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return false;
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}
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$sql = 'SELECT * FROM '.$tbl_stats."
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WHERE c_id = {$course_info['real_id']} AND
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id = '".intval($this->get_ref_id())."' AND
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session_id = ".api_get_session_id()."";
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$query = Database::query($sql);
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$assignment = Database::fetch_array($query);
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if(count($assignment)==0) {
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$v_assigment_id ='0';
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} else {
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$v_assigment_id = $assignment['id'];
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}
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$sql = 'SELECT * FROM '.$tbl_stats.' WHERE parent_id ="'.$v_assigment_id.'" AND session_id='.api_get_session_id().'';
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if (isset($stud_id)){
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$sql1='SELECT firstname, lastname FROM '.Database::get_main_table(TABLE_MAIN_USER)." WHERE user_id = '".((int)$stud_id)."'";
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$query = Database::query($sql1);
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$student = Database::fetch_array($query);
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$sql .= ' AND author = '."'".Database::escape_string(api_get_person_name($student['firstname'], $student['lastname'], null, null, $course_info['course_language']))."'";
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}
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// order by id, that way the student's first attempt is accessed first
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$sql .= ' ORDER BY id';
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$scores = Database::query($sql);
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// for 1 student
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if (isset($stud_id)) {
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if ($data=Database::fetch_array($scores)) {
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return array ($data['qualification'], $assignment['qualification']);
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} else {
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return '';
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}
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} else {
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$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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while ($data=Database::fetch_array($scores)) {
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if (!(array_key_exists($data['author'],$students))) {
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if ($assignment['qualification'] != 0) {
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$students[$data['author']] = $data['qualification'];
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$rescount++;
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$sum += ($data['qualification'] / $assignment['qualification']);
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}
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}
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}
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if ($rescount == 0) {
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return null;
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} else {
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return array ($sum , $rescount);
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}
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}
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}
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// INTERNAL FUNCTIONS
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/**
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* Lazy load function to get the database table of the student publications
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*/
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private function get_studpub_table () {
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$course_info = Database :: get_course_info($this->get_course_code());
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$database_name = isset($course_info['db_name']) ? $course_info['db_name'] : '';
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if ($database_name!='') {
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if (!isset($this->studpub_table)) {
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$this->studpub_table = Database :: get_course_table(TABLE_STUDENT_PUBLICATION, $database_name);
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}
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return $this->studpub_table;
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} else {
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return false;
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}
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}
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/**
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* Lazy load function to get the database table of the item properties
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*/
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private function get_itemprop_table () {
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if (!isset($this->itemprop_table)) {
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$course_info = Database :: get_course_info($this->get_course_code());
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$database_name = isset($course_info['db_name']) ? $course_info['db_name'] : '';
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$this->itemprop_table = Database :: get_course_table(TABLE_ITEM_PROPERTY, $database_name);
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}
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return $this->itemprop_table;
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}
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public function needs_name_and_description() {
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return false;
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}
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public function get_name() {
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$this->get_exercise_data();
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return (isset($this->exercise_data['url'])&&(substr($this->exercise_data['url'],0,1)=='/')? substr($this->exercise_data['url'], 1) : null);
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}
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public function get_description() {
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$this->get_exercise_data();
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return isset($this->exercise_data['description']) ? $this->exercise_data['description'] : null;
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}
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public function get_test_id() {
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return 'DEBUG:ID';
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}
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public function get_link() {
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$url = api_get_path(WEB_PATH)
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.'main/work/work.php?cidReq='.$this->get_course_code().'&id='.$this->exercise_data['id'].'&gradebook=view&curdirpath='.substr($this->exercise_data['url'], 1);
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if (!api_is_allowed_to_create_course()
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&& $this->calc_score(api_get_user_id()) == null) {
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//$url .= '&curdirpath=/'.$this->get_ref_id();
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}
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return $url;
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}
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private function get_exercise_data() {
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$tbl_name=$this->get_studpub_table();
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if ($tbl_name=='') {
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return false;
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} elseif (!isset($this->exercise_data)) {
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$sql = 'SELECT * FROM '.$this->get_studpub_table()." WHERE id = '".intval($this->get_ref_id())."' AND session_id=".api_get_session_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 $this->exercise_data;
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}
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public function needs_max() {
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return false;
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}
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public function needs_results() {
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return false;
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}
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public function is_valid_link() {
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$sql = 'SELECT count(id) from '.$this->get_studpub_table()
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.' WHERE id = '.intval($this->get_ref_id()).' AND 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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public function get_icon_name() {
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return 'studentpublication';
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}
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}
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