@ -1,15 +1,5 @@
<?php <?php
/* For licensing terms, see /license.txt */ /* For licensing terms, see /license.txt */
/**
* File containing the Question class.
* @package chamilo.exercise
* @author Olivier Brouckaert
* @author Julio Montoya < gugli100 @ gmail . com > lot of bug fixes
* Modified by hubert.borderiou@grenet.fr - add question categories
*/
/**
* Code
*/
// Question types // Question types
define('UNIQUE_ANSWER', 1); define('UNIQUE_ANSWER', 1);
@ -35,13 +25,15 @@ define('MCMA', 2);
define('FIB', 3); define('FIB', 3);
/** /**
QUESTION CLASS * Class Question
* *
* This class allows to instantiate an object of type Question * This class allows to instantiate an object of type Question
* *
* @author Olivier Brouckaert, original author * @author Olivier Brouckaert, original author
* @author Patrick Cool, LaTeX support * @author Patrick Cool, LaTeX support
* @package chamilo.exercise * @author Julio Montoya < gugli100 @ gmail . com > lot of bug fixes
* @author hubert.borderiou@grenet.fr - add question categories
* @package chamilo.exercise
*/ */
abstract class Question abstract class Question
{ {
@ -101,7 +93,8 @@ abstract class Question
$this->parent_id = 0; $this->parent_id = 0;
} }
public function getIsContent() { public function getIsContent()
{
$isContent = null; $isContent = null;
if (isset($_REQUEST['isContent'])) { if (isset($_REQUEST['isContent'])) {
$isContent = intval($_REQUEST['isContent']); $isContent = intval($_REQUEST['isContent']);
@ -117,7 +110,8 @@ abstract class Question
* *
* @return Question * @return Question
*/ */
static function read($id, $course_id = null) { static function read($id, $course_id = null)
{
$id = intval($id); $id = intval($id);
if (!empty($course_id)) { if (!empty($course_id)) {
@ -167,9 +161,11 @@ abstract class Question
$objQuestion->exerciseList[] = $obj->exercice_id; $objQuestion->exerciseList[] = $obj->exercice_id;
} }
} }
return $objQuestion; return $objQuestion;
} }
} }
// question not found // question not found
return false; return false;
} }
@ -180,7 +176,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return - integer - question ID * @return - integer - question ID
*/ */
function selectId() { function selectId()
{
return $this->id; return $this->id;
} }
@ -190,7 +187,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return string - question title * @return string - question title
*/ */
function selectTitle() { function selectTitle()
{
return $this->question; return $this->question;
} }
@ -200,7 +198,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return string - question description * @return string - question description
*/ */
function selectDescription() { function selectDescription()
{
$this->description=text_filter($this->description); $this->description=text_filter($this->description);
return $this->description; return $this->description;
} }
@ -222,7 +221,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return integer - question position * @return integer - question position
*/ */
function selectPosition() { function selectPosition()
{
return $this->position; return $this->position;
} }
@ -232,7 +232,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return integer - answer type * @return integer - answer type
*/ */
function selectType() { function selectType()
{
return $this->type; return $this->type;
} }
@ -242,7 +243,8 @@ abstract class Question
* @author Nicolas Raynaud * @author Nicolas Raynaud
* @return integer - level of the question, 0 by default. * @return integer - level of the question, 0 by default.
*/ */
function selectLevel() { function selectLevel()
{
return $this->level; return $this->level;
} }
@ -252,11 +254,13 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return string - picture name * @return string - picture name
*/ */
function selectPicture() { function selectPicture()
{
return $this->picture; return $this->picture;
} }
function selectPicturePath() { function selectPicturePath()
{
if (!empty($this->picture)) { if (!empty($this->picture)) {
return api_get_path(WEB_COURSE_PATH).$this->course['path'].'/document/images/'.$this->picture; return api_get_path(WEB_COURSE_PATH).$this->course['path'].'/document/images/'.$this->picture;
} }
@ -269,7 +273,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @return array - list of exercise ID which the question is in * @return array - list of exercise ID which the question is in
*/ */
function selectExerciseList() { function selectExerciseList()
{
return $this->exerciseList; return $this->exerciseList;
} }
@ -360,7 +365,8 @@ abstract class Question
foreach ($category_list as $category_id) { foreach ($category_list as $category_id) {
$category_id = intval($category_id); $category_id = intval($category_id);
$question_id = Database::escape_string($this->id); $question_id = Database::escape_string($this->id);
$sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY WHERE category_id = $category_id AND question_id = $question_id AND c_id=".api_get_course_int_id(); $sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY
WHERE category_id = $category_id AND question_id = $question_id AND c_id=".api_get_course_int_id();
$res = Database::query($sql); $res = Database::query($sql);
$row = Database::fetch_array($res); $row = Database::fetch_array($res);
if ($row['nb'] > 0) { if ($row['nb'] > 0) {
@ -369,7 +375,7 @@ abstract class Question
//$res = Database::query($sql); //$res = Database::query($sql);
} else { } else {
$sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY (c_id, question_id, category_id) VALUES (".api_get_course_int_id().", $question_id, $category_id)"; $sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY (c_id, question_id, category_id) VALUES (".api_get_course_int_id().", $question_id, $category_id)";
$res = Database::query($sql); Database::query($sql);
} }
} }
} }
@ -377,11 +383,12 @@ abstract class Question
/** /**
* @author Hubert Borderiou 12-10-2011 * @author Hubert Borderiou 12-10-2011
* @param int $in_positive * @param int $in_category
* in this version, a question can only have 1 category * in this version, a question can only have 1 category
* if category is 0, then question has no category then delete the category entry * if category is 0, then question has no category then delete the category entry
*/ */
function saveCategory($in_category) { function saveCategory($in_category)
{
if ($in_category < = 0) { if ($in_category < = 0) {
$this->deleteCategory(); $this->deleteCategory();
} else { } else {
@ -390,15 +397,16 @@ abstract class Question
$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY); $TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$category_id = Database::escape_string($in_category); $category_id = Database::escape_string($in_category);
$question_id = Database::escape_string($this->id); $question_id = Database::escape_string($this->id);
$sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY WHERE question_id=$question_id AND c_id=".api_get_course_int_id(); $sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY
WHERE question_id=$question_id AND c_id=".api_get_course_int_id();
$res = Database::query($sql); $res = Database::query($sql);
$row = Database::fetch_array($res); $row = Database::fetch_array($res);
if ($row['nb'] > 0){ if ($row['nb'] > 0){
$sql = "UPDATE $TBL_QUESTION_REL_CATEGORY SET category_id=$category_id WHERE question_id=$question_id AND c_id=".api_get_course_int_id(); $sql = "UPDATE $TBL_QUESTION_REL_CATEGORY SET category_id=$category_id WHERE question_id=$question_id AND c_id=".api_get_course_int_id();
$res = Database::query($sql); Database::query($sql);
} else { } else {
$sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY VALUES (".api_get_course_int_id().", $question_id, $category_id)"; $sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY VALUES (".api_get_course_int_id().", $question_id, $category_id)";
$res = Database::query($sql); Database::query($sql);
} }
} }
} }
@ -409,10 +417,12 @@ abstract class Question
* @param : none * @param : none
* delte the category for question * delte the category for question
*/ */
function deleteCategory() { function deleteCategory()
{
$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY); $TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
$question_id = Database::escape_string($this->id); $question_id = Database::escape_string($this->id);
$sql = "DELETE FROM $TBL_QUESTION_REL_CATEGORY WHERE question_id=$question_id AND c_id=".api_get_course_int_id(); $sql = "DELETE FROM $TBL_QUESTION_REL_CATEGORY
WHERE question_id=$question_id AND c_id=".api_get_course_int_id();
Database::query($sql); Database::query($sql);
} }
@ -422,7 +432,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @param integer $position - question position * @param integer $position - question position
*/ */
function updatePosition($position) { function updatePosition($position)
{
$this->position=$position; $this->position=$position;
} }
@ -432,7 +443,8 @@ abstract class Question
* @author Nicolas Raynaud * @author Nicolas Raynaud
* @param integer $level - question level * @param integer $level - question level
*/ */
function updateLevel($level) { function updateLevel($level)
{
$this->level=$level; $this->level=$level;
} }
@ -443,7 +455,8 @@ abstract class Question
* @author Olivier Brouckaert * @author Olivier Brouckaert
* @param integer $type - answer type * @param integer $type - answer type
*/ */
function updateType($type) { function updateType($type)
{
$TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER); $TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER);
$course_id = $this->course['real_id']; $course_id = $this->course['real_id'];
@ -471,7 +484,8 @@ abstract class Question
* @param string $PictureName - Name of the picture * @param string $PictureName - Name of the picture
* @return boolean - true if uploaded, otherwise false * @return boolean - true if uploaded, otherwise false
*/ */
function uploadPicture($Picture, $PictureName, $picturePath = null) { function uploadPicture($Picture, $PictureName, $picturePath = null)
{
if (empty($picturePath)) { if (empty($picturePath)) {
global $picturePath; global $picturePath;
} }
@ -498,6 +512,7 @@ abstract class Question
return api_item_property_update($this->course, TOOL_DOCUMENT, $document_id, 'DocumentAdded', api_get_user_id()); return api_item_property_update($this->course, TOOL_DOCUMENT, $document_id, 'DocumentAdded', api_get_user_id());
} }
} }
return false; return false;
} }
@ -509,11 +524,12 @@ abstract class Question
* @param integer $Max - Maximum size * @param integer $Max - Maximum size
* @return boolean - true if success, false if failed * @return boolean - true if success, false if failed
*/ */
function resizePicture($Dimension, $Max) { function resizePicture($Dimension, $Max)
{
global $picturePath; global $picturePath;
// if the question has an ID // if the question has an ID
if($this->id) { if ($this->id) {
// Get dimensions from current image. // Get dimensions from current image.
$my_image = new Image($picturePath.'/'.$this->picture); $my_image = new Image($picturePath.'/'.$this->picture);
Julio Montoya
11 years ago