Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/gradebook/lib/be/result.class.php

250 lines
7.7 KiB

<?php
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2008 Dokeos Latinoamerica SAC
Copyright (c) 2006 Dokeos SPRL
Copyright (c) 2006 Ghent University (UGent)
Copyright (c) various contributors
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
Mail: info@dokeos.com
==============================================================================
*/
/**
* Defines a gradebook Result object
* @author Bert Steppé, Stijn Konings
* @package dokeos.gradebook
*/
class Result
{
// PROPERTIES
private $id;
private $user_id;
private $evaluation;
private $creation_date;
private $score;
// CONSTRUCTORS
function Result() {
$this->creation_date = time();
}
// GETTERS AND SETTERS
public function get_id() {
return $this->id;
}
public function get_user_id() {
return $this->user_id;
}
public function get_evaluation_id() {
return $this->evaluation;
}
public function get_date() {
return $this->creation_date;
}
public function get_score() {
return $this->score;
}
public function set_id ($id) {
$this->id = $id;
}
public function set_user_id ($user_id) {
$this->user_id = $user_id;
}
public function set_evaluation_id ($evaluation_id) {
$this->evaluation = $evaluation_id;
}
public function set_date ($creation_date) {
$this->creation_date = $creation_date;
}
public function set_score ($score) {
$this->score = $score;
}
// CRUD FUNCTIONS
/**
* Retrieve results and return them as an array of Result objects
* @param $id result id
* @param $user_id user id (student)
* @param $evaluation_id evaluation where this is a result for
*/
public function load ($id = null, $user_id = null, $evaluation_id = null) {
$tbl_grade_results = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_RESULT);
$tbl_course_rel_course = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
if (is_null($id ) && is_null($user_id) && !is_null($evaluation_id)) {
$sql_verified_if_exist_evaluation='SELECT COUNT(*) AS count FROM '.$tbl_grade_results.' WHERE evaluation_id="'.Database::escape_string($evaluation_id).'";';
$res_verified_if_exist_evaluation=Database::query($sql_verified_if_exist_evaluation,__FILE__,__LINE__);
$info_verified_if_exist_evaluation=Database::result($res_verified_if_exist_evaluation,0,0);
if ($info_verified_if_exist_evaluation!=0) {
$sql_course_rel_user='SELECT course_code,user_id,status FROM '.$tbl_course_rel_course.' WHERE status="5" AND course_code="'.api_get_course_id().'"; ';
$res_course_rel_user=Database::query($sql_course_rel_user,__FILE__,__LINE__);
$list_user_course_list=array();
while ($row_course_rel_user=Database::fetch_array($res_course_rel_user)) {
$list_user_course_list[]=$row_course_rel_user;
}
$current_date=time();
for ($i=0;$i<count($list_user_course_list);$i++) {
$sql_verified='SELECT COUNT(*) AS count FROM '.$tbl_grade_results.' WHERE user_id="'.(int)($list_user_course_list[$i]['user_id']).'" AND evaluation_id="'.Database::escape_string($evaluation_id).'";';
//$my_status_in_course=CourseManager::get_user_in_course_status($list_user_course_list[$i]['user_id'], api_get_course_id());
$res_verified=Database::query($sql_verified,__FILE__,__LINE__);
$info_verified=Database::result($res_verified,0,0);
if ($info_verified==0) {
$sql_insert='INSERT INTO '.$tbl_grade_results.'(user_id,evaluation_id,date,score) values ("'.Database::escape_string($list_user_course_list[$i]['user_id']).'","'.Database::escape_string($evaluation_id).'","'.$current_date.'",0);';
$res_insert=Database::query($sql_insert,__FILE__,__LINE__);
}
}
$list_user_course_list=array();
}
}
$sql='SELECT id,user_id,evaluation_id,date,score FROM '.$tbl_grade_results;
$paramcount = 0;
if (!empty ($id)) {
$sql.= ' WHERE id = '.Database::escape_string($id);
$paramcount ++;
}
if (!empty ($user_id)) {
if ($paramcount != 0) $sql .= ' AND';
else $sql .= ' WHERE';
$sql .= ' user_id = '.Database::escape_string($user_id);
$paramcount ++;
}
if (!empty ($evaluation_id)) {
if ($paramcount != 0) {
$sql .= ' AND';
} else {
$sql .= ' WHERE';
}
$sql .= ' evaluation_id = '.Database::escape_string($evaluation_id);
$paramcount ++;
}
$result = api_sql_query($sql, __FILE__, __LINE__);
$allres=array();
while ($data=Database::fetch_array($result)) {
$res= new Result();
$res->set_id($data['id']);
$res->set_user_id($data['user_id']);
$res->set_evaluation_id($data['evaluation_id']);
$res->set_date($data['date']);
$res->set_score($data['score']);
$allres[]=$res;
}
return $allres;
}
/**
* Insert this result into the database
*/
public function add() {
if (isset($this->user_id) && isset($this->evaluation) && isset($this->creation_date) ) {
$tbl_grade_results = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_RESULT);
$sql = 'INSERT INTO '.$tbl_grade_results
.' (user_id, evaluation_id,
date';
if (isset($this->score)) {
$sql .= ',score';
}
$sql .= ') VALUES
('.(int)$this->get_user_id().', '.(int)$this->get_evaluation_id()
.', '.$this->get_date();
if (isset($this->score)) {
$sql .= ', '.$this->get_score();
}
$sql .= ')';
api_sql_query($sql, __FILE__, __LINE__);
} else {
die('Error in Result add: required field empty');
}
}
/**
* insert log result
*/
public function add_result__log($userid,$evaluationid){
if (isset($userid) && isset($evaluationid) ) {
$tbl_grade_results_log = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_RESULT_LOG);
$result=new Result();
$arr_result=$result->load (null, $userid, $evaluationid);
$arr=get_object_vars($arr_result[0]);
$sql = 'INSERT INTO '.$tbl_grade_results_log
.' (id_result,user_id, evaluation_id,
date_log';
if (isset($arr['score'])) {
$sql .= ',score';
}
$sql .= ') VALUES
('.(int)$arr['id'].','.(int)$arr['user_id'].', '.(int)$arr['evaluation']
.', '.$arr['creation_date'];
if (isset($arr['score'])) {
$sql .= ', '.$arr['score'];
}
$sql .= ')';
api_sql_query($sql, __FILE__, __LINE__);
} else {
die('Error in Result add: required field empty');
}
}
/**
* Update the properties of this result in the database
*/
public function save() {
$tbl_grade_results = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_RESULT);
$sql = 'UPDATE '.$tbl_grade_results
.' SET user_id = '.$this->get_user_id()
.', evaluation_id = '.$this->get_evaluation_id()
.', score = ';
if (isset($this->score)) {
$sql .= $this->get_score();
} else {
$sql .= 'null';
}
$sql .= ' WHERE id = '.$this->id;
// no need to update creation date
api_sql_query($sql, __FILE__, __LINE__);
}
/**
* Delete this result from the database
*/
public function delete() {
$tbl_grade_results = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_RESULT);
$sql = 'DELETE FROM '.$tbl_grade_results.' WHERE id = '.$this->id;
api_sql_query($sql, __FILE__, __LINE__);
}
}