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1311 lines
47 KiB
1311 lines
47 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* File containing the Question class.
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* @package chamilo.exercise
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* @author Olivier Brouckaert
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* @author Julio Montoya <gugli100@gmail.com> lot of bug fixes
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*/
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/**
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* Code
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*/
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if(!class_exists('Question')):
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// answer types
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define('UNIQUE_ANSWER', 1);
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define('MULTIPLE_ANSWER', 2);
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define('FILL_IN_BLANKS', 3);
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define('MATCHING', 4);
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define('FREE_ANSWER', 5);
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define('HOT_SPOT', 6);
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define('HOT_SPOT_ORDER', 7);
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define('HOT_SPOT_DELINEATION', 8);
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define('MULTIPLE_ANSWER_COMBINATION', 9);
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define('UNIQUE_ANSWER_NO_OPTION', 10);
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define('MULTIPLE_ANSWER_TRUE_FALSE', 11);
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define('MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE', 12);
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/**
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QUESTION CLASS
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*
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* This class allows to instantiate an object of type Question
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*
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* @author Olivier Brouckaert, original author
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* @author Patrick Cool, LaTeX support
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* @package chamilo.exercise
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*/
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abstract class Question
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{
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public $id;
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public $question;
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public $description;
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public $weighting;
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public $position;
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public $type;
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public $level;
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public $picture;
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public $exerciseList; // array with the list of exercises which this question is in
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private $isContent;
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public $course;
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static $typePicture = 'new_question.png';
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static $explanationLangVar = '';
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static $questionTypes = array(
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UNIQUE_ANSWER => array('unique_answer.class.php' , 'UniqueAnswer'),
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MULTIPLE_ANSWER => array('multiple_answer.class.php' , 'MultipleAnswer'),
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FILL_IN_BLANKS => array('fill_blanks.class.php' , 'FillBlanks'),
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MATCHING => array('matching.class.php' , 'Matching'),
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FREE_ANSWER => array('freeanswer.class.php' , 'FreeAnswer'),
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HOT_SPOT => array('hotspot.class.php' , 'HotSpot'),
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HOT_SPOT_DELINEATION => array('hotspot.class.php' , 'HotspotDelineation'),
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MULTIPLE_ANSWER_COMBINATION => array('multiple_answer_combination.class.php' , 'MultipleAnswerCombination'),
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UNIQUE_ANSWER_NO_OPTION => array('unique_answer_no_option.class.php' , 'UniqueAnswerNoOption'),
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MULTIPLE_ANSWER_TRUE_FALSE => array('multiple_answer_true_false.class.php' , 'MultipleAnswerTrueFalse'),
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MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE => array('multiple_answer_combination_true_false.class.php' , 'MultipleAnswerCombinationTrueFalse'),
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);
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/**
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* constructor of the class
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*
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* @author - Olivier Brouckaert
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*/
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function Question() {
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$this->id=0;
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$this->question='';
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$this->description='';
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$this->weighting=0;
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$this->position=1;
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$this->picture='';
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$this->level = 1;
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$this->extra='';
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$this->exerciseList=array();
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}
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public function getIsContent() {
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$isContent = null;
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if (isset($_REQUEST['isContent'])) {
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$isContent = intval($_REQUEST['isContent']);
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}
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return $this->isContent = $isContent;
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}
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/**
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* Reads question informations from the data base
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*
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* @author - Olivier Brouckaert
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* @param - integer $id - question ID
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* @return - boolean - true if question exists, otherwise false
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*/
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static function read($id, $course_id = null) {
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$id = intval($id);
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if (!empty($course_id)) {
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$course_info = api_get_course_info_by_id($course_id);
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} else {
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global $course;
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$course_info = api_get_course_info();
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}
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$TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST, $course_info['db_name']);
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$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION, $course_info['db_name']);
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$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION, $course_info['db_name']);
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$sql="SELECT question,description,ponderation,position,type,picture,level,extra FROM $TBL_QUESTIONS WHERE id= $id ";
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$result=Database::query($sql);
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// if the question has been found
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if ($object = Database::fetch_object($result)) {
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$objQuestion = Question::getInstance($object->type);
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$objQuestion->id = $id;
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$objQuestion->question = $object->question;
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$objQuestion->description = $object->description;
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$objQuestion->weighting = $object->ponderation;
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$objQuestion->position = $object->position;
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$objQuestion->type = $object->type;
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$objQuestion->picture = $object->picture;
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$objQuestion->level = (int) $object->level;
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$objQuestion->extra = $object->extra;
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$objQuestion->course = $course_info;
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$sql="SELECT exercice_id FROM $TBL_EXERCICE_QUESTION WHERE question_id='".$id."'";
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$result=Database::query($sql);
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// fills the array with the exercises which this question is in
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while($object=Database::fetch_object($result)) {
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$objQuestion->exerciseList[]=$object->exercice_id;
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}
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return $objQuestion;
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}
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// question not found
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return false;
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}
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/**
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* returns the question ID
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*
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* @author - Olivier Brouckaert
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* @return - integer - question ID
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*/
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function selectId() {
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return $this->id;
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}
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/**
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* returns the question title
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*
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* @author - Olivier Brouckaert
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* @return - string - question title
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*/
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function selectTitle() {
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$this->question=text_filter($this->question);
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return $this->question;
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}
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/**
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* returns the question description
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*
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* @author - Olivier Brouckaert
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* @return - string - question description
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*/
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function selectDescription() {
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$this->description=text_filter($this->description);
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return $this->description;
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}
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/**
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* returns the question weighting
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*
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* @author - Olivier Brouckaert
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* @return - integer - question weighting
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*/
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function selectWeighting()
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{
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return $this->weighting;
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}
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/**
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* returns the question position
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*
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* @author - Olivier Brouckaert
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* @return - integer - question position
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*/
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function selectPosition()
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{
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return $this->position;
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}
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/**
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* returns the answer type
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*
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* @author - Olivier Brouckaert
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* @return - integer - answer type
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*/
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function selectType()
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{
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return $this->type;
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}
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/**
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* returns the level of the question
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*
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* @author - Nicolas Raynaud
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* @return - integer - level of the question, 0 by default.
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*/
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function selectLevel()
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{
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return $this->level;
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}
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/**
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* returns the picture name
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*
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* @author - Olivier Brouckaert
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* @return - string - picture name
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*/
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function selectPicture()
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{
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return $this->picture;
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}
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function selectPicturePath() {
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if (!empty($this->picture)) {
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return api_get_path(WEB_COURSE_PATH).$this->course['path'].'/document/images/'.$this->picture;
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}
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return false;
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}
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/**
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* returns the array with the exercise ID list
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*
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* @author - Olivier Brouckaert
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* @return - array - list of exercise ID which the question is in
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*/
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function selectExerciseList()
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{
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return $this->exerciseList;
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}
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/**
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* returns the number of exercises which this question is in
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*
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* @author - Olivier Brouckaert
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* @return - integer - number of exercises
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*/
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function selectNbrExercises()
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{
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return sizeof($this->exerciseList);
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}
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/**
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* changes the question title
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*
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* @author - Olivier Brouckaert
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* @param - string $title - question title
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*/
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function updateTitle($title)
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{
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$this->question=$title;
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}
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/**
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* changes the question description
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*
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* @author - Olivier Brouckaert
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* @param - string $description - question description
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*/
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function updateDescription($description)
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{
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$this->description=$description;
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}
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/**
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* changes the question weighting
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*
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* @author - Olivier Brouckaert
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* @param - integer $weighting - question weighting
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*/
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function updateWeighting($weighting)
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{
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$this->weighting=$weighting;
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}
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/**
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* changes the question position
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*
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* @author - Olivier Brouckaert
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* @param - integer $position - question position
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*/
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function updatePosition($position)
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{
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$this->position=$position;
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}
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/**
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* changes the question level
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*
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* @author - Nicolas Raynaud
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* @param - integer $level - question level
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*/
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function updateLevel($level)
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{
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$this->level=$level;
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}
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/**
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* changes the answer type. If the user changes the type from "unique answer" to "multiple answers"
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* (or conversely) answers are not deleted, otherwise yes
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*
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* @author - Olivier Brouckaert
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* @param - integer $type - answer type
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*/
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function updateType($type) {
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$TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER, $this->course['db_name']);
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// if we really change the type
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if($type != $this->type) {
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// if we don't change from "unique answer" to "multiple answers" (or conversely)
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if(!in_array($this->type,array(UNIQUE_ANSWER,MULTIPLE_ANSWER)) || !in_array($type,array(UNIQUE_ANSWER,MULTIPLE_ANSWER))) {
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// removes old answers
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$sql="DELETE FROM $TBL_REPONSES WHERE question_id='".Database::escape_string($this->id)."'";
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Database::query($sql);
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}
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$this->type=$type;
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}
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}
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/**
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* adds a picture to the question
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*
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* @author - Olivier Brouckaert
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* @param - string $Picture - temporary path of the picture to upload
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* @param - string $PictureName - Name of the picture
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* @return - boolean - true if uploaded, otherwise false
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*/
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function uploadPicture($Picture,$PictureName) {
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global $picturePath;
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if (!file_exists($picturePath)) {
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if (mkdir($picturePath, api_get_permissions_for_new_directories())) {
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// document path
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$documentPath = api_get_path(SYS_COURSE_PATH) . $this->course['path'] . "/document";
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$path = str_replace($documentPath,'',$picturePath);
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$title_path = basename($picturePath);
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$doc_id = add_document($this->course, $path, 'folder', 0,$title_path);
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api_item_property_update($this->course, TOOL_DOCUMENT, $doc_id, 'FolderCreated', api_get_user_id());
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}
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}
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// if the question has got an ID
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if ($this->id) {
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$extension = pathinfo($PictureName, PATHINFO_EXTENSION);
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$this->picture = 'quiz-'.$this->id.'.jpg';
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$o_img = new Image($Picture);
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$o_img->send_image($picturePath.'/'.$this->picture, -1, 'jpg');
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$document_id = add_document($this->course, '/images/'.$this->picture, 'file', filesize($picturePath.'/'.$this->picture),$this->picture);
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if ($document_id) {
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return api_item_property_update($this->course, TOOL_DOCUMENT, $document_id, 'DocumentAdded', api_get_user_id);
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}
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}
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return false;
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}
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/**
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* Resizes a picture || Warning!: can only be called after uploadPicture, or if picture is already available in object.
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*
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* @author - Toon Keppens
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* @param - string $Dimension - Resizing happens proportional according to given dimension: height|width|any
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* @param - integer $Max - Maximum size
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* @return - boolean - true if success, false if failed
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*/
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function resizePicture($Dimension, $Max) {
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global $picturePath;
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// if the question has an ID
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if($this->id) {
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// Get dimensions from current image.
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$my_image = new Image($picturePath.'/'.$this->picture);
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$current_image_size = $my_image->get_image_size();
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$current_width = $current_image_size['width'];
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$current_height = $current_image_size['height'];
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if($current_width < $Max && $current_height <$Max)
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return true;
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elseif($current_height == "")
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return false;
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// Resize according to height.
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if ($Dimension == "height") {
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$resize_scale = $current_height / $Max;
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$new_height = $Max;
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$new_width = ceil($current_width / $resize_scale);
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}
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// Resize according to width
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if ($Dimension == "width") {
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$resize_scale = $current_width / $Max;
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$new_width = $Max;
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$new_height = ceil($current_height / $resize_scale);
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}
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// Resize according to height or width, both should not be larger than $Max after resizing.
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if ($Dimension == "any") {
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if ($current_height > $current_width || $current_height == $current_width)
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{
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$resize_scale = $current_height / $Max;
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$new_height = $Max;
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$new_width = ceil($current_width / $resize_scale);
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}
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if ($current_height < $current_width)
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{
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$resize_scale = $current_width / $Max;
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$new_width = $Max;
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$new_height = ceil($current_height / $resize_scale);
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}
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}
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$my_image->resize($new_width, $new_height);
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$result = $my_image->send_image($picturePath.'/'.$this->picture);
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if ($result) {
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return true;
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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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/**
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* deletes the picture
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*
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* @author - Olivier Brouckaert
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* @return - boolean - true if removed, otherwise false
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*/
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function removePicture()
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{
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global $picturePath;
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// if the question has got an ID and if the picture exists
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if($this->id)
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{
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$picture=$this->picture;
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$this->picture='';
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return @unlink($picturePath.'/'.$picture)?true:false;
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}
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return false;
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}
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/**
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* Exports a picture to another question
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*
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* @author - Olivier Brouckaert
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* @param - integer $questionId - ID of the target question
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* @return - boolean - true if copied, otherwise false
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*/
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function exportPicture($questionId, $course_info) {
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$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION, $course_info['db_name']);
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$destination_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document/images';
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$source_path = api_get_path(SYS_COURSE_PATH).$this->course['path'].'/document/images';
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// if the question has got an ID and if the picture exists
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if($this->id && !empty($this->picture)) {
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$picture=explode('.',$this->picture);
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$Extension=$picture[sizeof($picture)-1];
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$picture='quiz-'.$questionId.'.'.$Extension;
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$sql="UPDATE $TBL_QUESTIONS SET picture='".Database::escape_string($picture)."' WHERE id='".intval($questionId)."'";
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Database::query($sql);
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return @copy($source_path.'/'.$this->picture, $destination_path.'/'.$picture)?true:false;
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}
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return false;
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}
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/**
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* Saves the picture coming from POST into a temporary file
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* Temporary pictures are used when we don't want to save a picture right after a form submission.
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* For example, if we first show a confirmation box.
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*
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* @author - Olivier Brouckaert
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* @param - string $Picture - temporary path of the picture to move
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* @param - string $PictureName - Name of the picture
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*/
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function setTmpPicture($Picture,$PictureName) {
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global $picturePath;
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$PictureName=explode('.',$PictureName);
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$Extension=$PictureName[sizeof($PictureName)-1];
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// saves the picture into a temporary file
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@move_uploaded_file($Picture,$picturePath.'/tmp.'.$Extension);
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}
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/**
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Sets the title
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*/
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public function setTitle($title)
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{
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$this->question = $title;
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}
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/**
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Sets the title
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*/
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public function setExtra($extra)
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{
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$this->extra = $extra;
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}
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|
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/**
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* Moves the temporary question "tmp" to "quiz-$questionId"
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* Temporary pictures are used when we don't want to save a picture right after a form submission.
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* For example, if we first show a confirmation box.
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*
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* @author - Olivier Brouckaert
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* @return - boolean - true if moved, otherwise false
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*/
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function getTmpPicture()
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{
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global $picturePath;
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// if the question has got an ID and if the picture exists
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if($this->id)
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{
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if(file_exists($picturePath.'/tmp.jpg'))
|
|
{
|
|
$Extension='jpg';
|
|
}
|
|
elseif(file_exists($picturePath.'/tmp.gif'))
|
|
{
|
|
$Extension='gif';
|
|
}
|
|
elseif(file_exists($picturePath.'/tmp.png'))
|
|
{
|
|
$Extension='png';
|
|
}
|
|
|
|
$this->picture='quiz-'.$this->id.'.'.$Extension;
|
|
|
|
return @rename($picturePath.'/tmp.'.$Extension,$picturePath.'/'.$this->picture)?true:false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* updates the question in the data base
|
|
* if an exercise ID is provided, we add that exercise ID into the exercise list
|
|
*
|
|
* @author - Olivier Brouckaert
|
|
* @param - integer $exerciseId - exercise ID if saving in an exercise
|
|
*/
|
|
function save($exerciseId=0) {
|
|
|
|
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION, $this->course['db_name']);
|
|
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION, $this->course['db_name']);
|
|
|
|
$id=$this->id;
|
|
$question=$this->question;
|
|
$description=$this->description;
|
|
$weighting=$this->weighting;
|
|
$position=$this->position;
|
|
$type=$this->type;
|
|
$picture=$this->picture;
|
|
$level=$this->level;
|
|
$extra=$this->extra;
|
|
|
|
// question already exists
|
|
if(!empty($id)) {
|
|
$sql="UPDATE $TBL_QUESTIONS SET
|
|
question ='".Database::escape_string($question)."',
|
|
description ='".Database::escape_string($description)."',
|
|
ponderation ='".Database::escape_string($weighting)."',
|
|
position ='".Database::escape_string($position)."',
|
|
type ='".Database::escape_string($type)."',
|
|
picture ='".Database::escape_string($picture)."',
|
|
extra ='".Database::escape_string($extra)."',
|
|
level ='".Database::escape_string($level)."'
|
|
WHERE id='".Database::escape_string($id)."'";
|
|
Database::query($sql);
|
|
if(!empty($exerciseId)) {
|
|
api_item_property_update($this->course, TOOL_QUIZ, $id,'QuizQuestionUpdated',api_get_user_id);
|
|
}
|
|
if (api_get_setting('search_enabled')=='true') {
|
|
if ($exerciseId != 0) {
|
|
$this -> search_engine_edit($exerciseId);
|
|
} else {
|
|
/**
|
|
* actually there is *not* an user interface for
|
|
* creating questions without a relation with an exercise
|
|
*/
|
|
}
|
|
}
|
|
|
|
} else {
|
|
// creates a new question
|
|
$sql="SELECT max(position) FROM $TBL_QUESTIONS as question, $TBL_EXERCICE_QUESTION as test_question WHERE question.id=test_question.question_id AND test_question.exercice_id='".Database::escape_string($exerciseId)."'";
|
|
$result=Database::query($sql);
|
|
$current_position=Database::result($result,0,0);
|
|
$this -> updatePosition($current_position+1);
|
|
$position = $this -> position;
|
|
|
|
$sql="INSERT INTO $TBL_QUESTIONS(question,description,ponderation,position,type,picture,extra, level) VALUES(
|
|
'".Database::escape_string($question)."',
|
|
'".Database::escape_string($description)."',
|
|
'".Database::escape_string($weighting)."',
|
|
'".Database::escape_string($position)."',
|
|
'".Database::escape_string($type)."',
|
|
'".Database::escape_string($picture)."',
|
|
'".Database::escape_string($extra)."',
|
|
'".Database::escape_string($level)."'
|
|
)";
|
|
Database::query($sql);
|
|
|
|
$this->id=Database::insert_id();
|
|
|
|
api_item_property_update($this->course, TOOL_QUIZ, $this->id,'QuizQuestionAdded',api_get_user_id());
|
|
|
|
// If hotspot, create first answer
|
|
if ($type == HOT_SPOT || $type == HOT_SPOT_ORDER) {
|
|
$TBL_ANSWERS = Database::get_course_table(TABLE_QUIZ_ANSWER);
|
|
$sql="INSERT INTO $TBL_ANSWERS (id , question_id , answer , correct , comment , ponderation , position , hotspot_coordinates , hotspot_type ) VALUES ('1', '".Database::escape_string($this->id)."', '', NULL , '', '10' , '1', '0;0|0|0', 'square')";
|
|
Database::query($sql);
|
|
}
|
|
|
|
if ($type == HOT_SPOT_DELINEATION ) {
|
|
$TBL_ANSWERS = Database::get_course_table(TABLE_QUIZ_ANSWER);
|
|
$sql="INSERT INTO $TBL_ANSWERS (id , question_id , answer , correct , comment , ponderation , position , hotspot_coordinates , hotspot_type ) VALUES ('1', '".Database::escape_string($this->id)."', '', NULL , '', '10' , '1', '0;0|0|0', 'delineation')";
|
|
api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
//$TBL_ANSWERS = Database::get_course_table(TABLE_QUIZ_ANSWER);
|
|
//$sql="INSERT INTO $TBL_ANSWERS (`id` , `question_id` , `answer` , `correct` , `comment` , `ponderation` , `position` , `hotspot_coordinates` , `hotspot_type` ) VALUES ('2', '".Database::escape_string($this->id)."', '', NULL , '', NULL , '1', '0;0|0|0', 'noerror')";
|
|
//api_sql_query($sql,__FILE__,__LINE__);
|
|
|
|
}
|
|
|
|
|
|
if (api_get_setting('search_enabled')=='true') {
|
|
if ($exerciseId != 0) {
|
|
$this -> search_engine_edit($exerciseId, TRUE);
|
|
} else {
|
|
/**
|
|
* actually there is *not* an user interface for
|
|
* creating questions without a relation with an exercise
|
|
*/
|
|
}
|
|
}
|
|
}
|
|
|
|
// if the question is created in an exercise
|
|
if($exerciseId) {
|
|
/*
|
|
$sql = 'UPDATE '.Database::get_course_table(TABLE_LP_ITEM).'
|
|
SET max_score = '.intval($weighting).'
|
|
WHERE item_type = "'.TOOL_QUIZ.'"
|
|
AND path='.intval($exerciseId);
|
|
Database::query($sql);
|
|
*/
|
|
// adds the exercise into the exercise list of this question
|
|
$this->addToList($exerciseId, TRUE);
|
|
}
|
|
}
|
|
|
|
function search_engine_edit($exerciseId, $addQs=FALSE, $rmQs=FALSE) {
|
|
// update search engine and its values table if enabled
|
|
if (api_get_setting('search_enabled')=='true' && extension_loaded('xapian')) {
|
|
$course_id = api_get_course_id();
|
|
// get search_did
|
|
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
|
|
if ($addQs || $rmQs) {
|
|
//there's only one row per question on normal db and one document per question on search engine db
|
|
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_second_level=%s LIMIT 1';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
|
|
} else {
|
|
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%s LIMIT 1';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $exerciseId, $this->id);
|
|
}
|
|
$res = Database::query($sql);
|
|
|
|
if (Database::num_rows($res) > 0 || $addQs) {
|
|
require_once(api_get_path(LIBRARY_PATH) . 'search/DokeosIndexer.class.php');
|
|
require_once(api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php');
|
|
|
|
$di = new DokeosIndexer();
|
|
if ($addQs) {
|
|
$question_exercises = array((int)$exerciseId);
|
|
} else {
|
|
$question_exercises = array();
|
|
}
|
|
isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
|
|
$di->connectDb(NULL, NULL, $lang);
|
|
|
|
// retrieve others exercise ids
|
|
$se_ref = Database::fetch_array($res);
|
|
$se_doc = $di->get_document((int)$se_ref['search_did']);
|
|
if ($se_doc !== FALSE) {
|
|
if ( ($se_doc_data=$di->get_document_data($se_doc)) !== FALSE ) {
|
|
$se_doc_data = unserialize($se_doc_data);
|
|
if (isset($se_doc_data[SE_DATA]['type']) && $se_doc_data[SE_DATA]['type'] == SE_DOCTYPE_EXERCISE_QUESTION) {
|
|
if (isset($se_doc_data[SE_DATA]['exercise_ids']) && is_array($se_doc_data[SE_DATA]['exercise_ids'])) {
|
|
foreach ($se_doc_data[SE_DATA]['exercise_ids'] as $old_value) {
|
|
if (!in_array($old_value, $question_exercises)) {
|
|
$question_exercises[] = $old_value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if ($rmQs) {
|
|
while ( ($key=array_search($exerciseId, $question_exercises)) !== FALSE) {
|
|
unset($question_exercises[$key]);
|
|
}
|
|
}
|
|
|
|
// build the chunk to index
|
|
$ic_slide = new IndexableChunk();
|
|
$ic_slide->addValue("title", $this->question);
|
|
$ic_slide->addCourseId($course_id);
|
|
$ic_slide->addToolId(TOOL_QUIZ);
|
|
$xapian_data = array(
|
|
SE_COURSE_ID => $course_id,
|
|
SE_TOOL_ID => TOOL_QUIZ,
|
|
SE_DATA => array('type' => SE_DOCTYPE_EXERCISE_QUESTION, 'exercise_ids' => $question_exercises, 'question_id' => (int)$this->id),
|
|
SE_USER => (int)api_get_user_id(),
|
|
);
|
|
$ic_slide->xapian_data = serialize($xapian_data);
|
|
$ic_slide->addValue("content", $this->description);
|
|
|
|
//TODO: index answers, see also form validation on question_admin.inc.php
|
|
|
|
$di->remove_document((int)$se_ref['search_did']);
|
|
$di->addChunk($ic_slide);
|
|
|
|
//index and return search engine document id
|
|
if (!empty($question_exercises)) { // if empty there is nothing to index
|
|
$did = $di->index();
|
|
unset($di);
|
|
}
|
|
if ($did || $rmQs) {
|
|
// save it to db
|
|
if ($addQs || $rmQs) {
|
|
$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_second_level=\'%s\'';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
|
|
} else {
|
|
$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=\'%s\' AND ref_id_second_level=\'%s\'';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $exerciseId, $this->id);
|
|
}
|
|
Database::query($sql);
|
|
if ($rmQs) {
|
|
if (!empty($question_exercises)) {
|
|
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did)
|
|
VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, array_shift($question_exercises), $this->id, $did);
|
|
Database::query($sql);
|
|
}
|
|
} else {
|
|
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did)
|
|
VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $exerciseId, $this->id, $did);
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* adds an exercise into the exercise list
|
|
*
|
|
* @author - Olivier Brouckaert
|
|
* @param - integer $exerciseId - exercise ID
|
|
* @param - boolean $fromSave - comming from $this->save() or not
|
|
*/
|
|
function addToList($exerciseId, $fromSave = FALSE) {
|
|
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION, $this->course['db_name']);
|
|
$id = $this->id;
|
|
// checks if the exercise ID is not in the list
|
|
if (!in_array($exerciseId,$this->exerciseList)) {
|
|
$this->exerciseList[]=$exerciseId;
|
|
$new_exercise = new Exercise();
|
|
$new_exercise->read($exerciseId);
|
|
$count = $new_exercise->selectNbrQuestions();
|
|
$count++;
|
|
$sql="INSERT INTO $TBL_EXERCICE_QUESTION (question_id, exercice_id, question_order) VALUES ('".Database::escape_string($id)."','".Database::escape_string($exerciseId)."', '$count' )";
|
|
Database::query($sql);
|
|
|
|
// we do not want to reindex if we had just saved adnd indexed the question
|
|
if (!$fromSave) {
|
|
$this->search_engine_edit($exerciseId, TRUE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* removes an exercise from the exercise list
|
|
*
|
|
* @author - Olivier Brouckaert
|
|
* @param - integer $exerciseId - exercise ID
|
|
* @return - boolean - true if removed, otherwise false
|
|
*/
|
|
function removeFromList($exerciseId) {
|
|
global $TBL_EXERCICE_QUESTION;
|
|
|
|
$id=$this->id;
|
|
|
|
// searches the position of the exercise ID in the list
|
|
$pos=array_search($exerciseId,$this->exerciseList);
|
|
|
|
// exercise not found
|
|
if($pos === false) {
|
|
return false;
|
|
} else {
|
|
// deletes the position in the array containing the wanted exercise ID
|
|
unset($this->exerciseList[$pos]);
|
|
//update order of other elements
|
|
$sql = "SELECT question_order FROM $TBL_EXERCICE_QUESTION WHERE question_id='".Database::escape_string($id)."' AND exercice_id='".Database::escape_string($exerciseId)."'";
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res)>0) {
|
|
$row = Database::fetch_array($res);
|
|
if (!empty($row['question_order'])) {
|
|
$sql = "UPDATE $TBL_EXERCICE_QUESTION SET question_order = question_order-1 WHERE exercice_id='".Database::escape_string($exerciseId)."' AND question_order > ".$row['question_order'];
|
|
$res = Database::query($sql);
|
|
}
|
|
}
|
|
|
|
$sql="DELETE FROM $TBL_EXERCICE_QUESTION WHERE question_id='".Database::escape_string($id)."' AND exercice_id='".Database::escape_string($exerciseId)."'";
|
|
Database::query($sql);
|
|
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Deletes a question from the database
|
|
* the parameter tells if the question is removed from all exercises (value = 0),
|
|
* or just from one exercise (value = exercise ID)
|
|
*
|
|
* @author - Olivier Brouckaert
|
|
* @param - integer $deleteFromEx - exercise ID if the question is only removed from one exercise
|
|
*/
|
|
function delete($deleteFromEx=0) {
|
|
global $_course,$_user;
|
|
|
|
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION, $this->course['db_name']);
|
|
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION, $this->course['db_name']);
|
|
$TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER, $this->course['db_name']);
|
|
|
|
$id=$this->id;
|
|
|
|
// if the question must be removed from all exercises
|
|
if(!$deleteFromEx)
|
|
{
|
|
//update the question_order of each question to avoid inconsistencies
|
|
$sql = "SELECT exercice_id, question_order FROM $TBL_EXERCICE_QUESTION WHERE question_id='".Database::escape_string($id)."'";
|
|
$res = Database::query($sql);
|
|
if (Database::num_rows($res)>0) {
|
|
while ($row = Database::fetch_array($res)) {
|
|
if (!empty($row['question_order'])) {
|
|
$sql = "UPDATE $TBL_EXERCICE_QUESTION SET question_order = question_order-1 WHERE exercice_id='".Database::escape_string($row['exercice_id'])."' AND question_order > ".$row['question_order'];
|
|
$res = Database::query($sql);
|
|
}
|
|
}
|
|
}
|
|
$sql="DELETE FROM $TBL_EXERCICE_QUESTION WHERE question_id='".Database::escape_string($id)."'";
|
|
Database::query($sql);
|
|
|
|
$sql="DELETE FROM $TBL_QUESTIONS WHERE id='".Database::escape_string($id)."'";
|
|
Database::query($sql);
|
|
|
|
$sql="DELETE FROM $TBL_REPONSES WHERE question_id='".Database::escape_string($id)."'";
|
|
Database::query($sql);
|
|
|
|
api_item_property_update($this->course, TOOL_QUIZ, $id,'QuizQuestionDeleted',api_get_user_id());
|
|
$this->removePicture();
|
|
|
|
// resets the object
|
|
$this->Question();
|
|
}
|
|
// just removes the exercise from the list
|
|
else
|
|
{
|
|
$this->removeFromList($deleteFromEx);
|
|
if (api_get_setting('search_enabled')=='true' && extension_loaded('xapian')) {
|
|
// disassociate question with this exercise
|
|
$this -> search_engine_edit($deleteFromEx, FALSE, TRUE);
|
|
}
|
|
api_item_property_update($this->course, TOOL_QUIZ, $id,'QuizQuestionDeleted',api_get_user_id());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Duplicates the question
|
|
*
|
|
* @author Olivier Brouckaert
|
|
* @param array Course info of the destination course
|
|
* @return int ID of the new question
|
|
*/
|
|
|
|
function duplicate($course_info = null) {
|
|
if (empty($course_info)) {
|
|
$course_info = $this->course;
|
|
} else {
|
|
$course_info = $course_info;
|
|
}
|
|
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION, $course_info['db_name']);
|
|
$TBL_QUESTION_OPTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION, $course_info['db_name']);
|
|
|
|
$question = $this->question;
|
|
$description = $this->description;
|
|
$weighting = $this->weighting;
|
|
$position = $this->position;
|
|
$type = $this->type;
|
|
$level = intval($this->level);
|
|
$extra = $this->extra;
|
|
|
|
//Using the same method used in the course copy to transform URLs
|
|
require_once api_get_path(LIBRARY_PATH).'document.lib.php';
|
|
if ($course_info['db_name'] != $this->course['db_name']) {
|
|
$description = DocumentManager::replace_urls_inside_content_html_from_copy_course($description, $this->course['id'], $course_info['id']);
|
|
$question = DocumentManager::replace_urls_inside_content_html_from_copy_course($question, $this->course['id'], $course_info['id']);
|
|
}
|
|
|
|
$options = self::readQuestionOption($this->id);
|
|
//Inserting in the new course db / or the same course db
|
|
$sql="INSERT INTO $TBL_QUESTIONS(question, description, ponderation, position, type, level, extra ) VALUES('".Database::escape_string($question)."','".Database::escape_string($description)."','".Database::escape_string($weighting)."','".Database::escape_string($position)."','".Database::escape_string($type)."' ,'".Database::escape_string($level)."' ,'".Database::escape_string($extra)."' )";
|
|
Database::query($sql);
|
|
|
|
$new_question_id =Database::insert_id();
|
|
|
|
if (!empty($options)) {
|
|
//Saving the quiz_options
|
|
foreach ($options as $item) {
|
|
$item['question_id'] = $new_question_id;
|
|
unset($item['id']);
|
|
Database::insert($TBL_QUESTION_OPTIONS,$item);
|
|
}
|
|
}
|
|
|
|
// Duplicates the picture
|
|
$this->exportPicture($new_question_id, $course_info);
|
|
return $new_question_id;
|
|
}
|
|
|
|
/**
|
|
* Returns an instance of the class corresponding to the type
|
|
* @param integer $type the type of the question
|
|
* @return an instance of a Question subclass (or of Questionc class by default)
|
|
*/
|
|
static function getInstance ($type) {
|
|
if (!is_null($type)) {
|
|
list($file_name,$class_name) = self::$questionTypes[$type];
|
|
include_once($file_name);
|
|
if (class_exists($class_name)) {
|
|
return new $class_name();
|
|
} else {
|
|
echo 'Can\'t instanciate class '.$class_name.' of type '.$type;
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Creates the form to create / edit a question
|
|
* A subclass can redifine this function to add fields...
|
|
* @param FormValidator $form the formvalidator instance (by reference)
|
|
*/
|
|
function createForm (&$form,$fck_config=0) {
|
|
echo ' <style>
|
|
div.row div.label{ width: 8%; }
|
|
div.row div.formw{ width: 88%; }
|
|
.media { display:none;}
|
|
</style>';
|
|
|
|
echo '<script>
|
|
// hack to hide http://cksource.com/forums/viewtopic.php?f=6&t=8700
|
|
|
|
function FCKeditor_OnComplete( editorInstance )
|
|
{
|
|
if (document.getElementById ( \'HiddenFCK\' + editorInstance.Name )) {
|
|
HideFCKEditorByInstanceName (editorInstance.Name);
|
|
}
|
|
}
|
|
|
|
function HideFCKEditorByInstanceName ( editorInstanceName ) {
|
|
if (document.getElementById ( \'HiddenFCK\' + editorInstanceName ).className == "HideFCKEditor" ) {
|
|
document.getElementById ( \'HiddenFCK\' + editorInstanceName ).className = "media";
|
|
}
|
|
}
|
|
|
|
function show_media()
|
|
{
|
|
var my_display = document.getElementById(\'HiddenFCKquestionDescription\').style.display;
|
|
if(my_display== \'none\' || my_display == \'\') {
|
|
document.getElementById(\'HiddenFCKquestionDescription\').style.display = \'block\';
|
|
document.getElementById(\'media_icon\').innerHTML=\' <img style="vertical-align: middle;" src="../img/looknfeelna.png" alt="" /> '.get_lang('EnrichQuestion').'\';
|
|
} else {
|
|
document.getElementById(\'HiddenFCKquestionDescription\').style.display = \'none\';
|
|
document.getElementById(\'media_icon\').innerHTML=\' <img style="vertical-align: middle;" src="../img/looknfeel.png" alt="" /> '.get_lang('EnrichQuestion').'\';
|
|
}
|
|
}
|
|
</script>';
|
|
|
|
|
|
$renderer = $form->defaultRenderer();
|
|
$form->addElement('html','<div class="form">');
|
|
// question name
|
|
$form->addElement('text','questionName','<span class="form_required">*</span> '.get_lang('Question'),'size="80"');
|
|
//$form->applyFilter('questionName','html_filter');
|
|
|
|
//$radios_results_enabled[] = $form->createElement('static', null, null, null);
|
|
//$test=FormValidator :: createElement ('text', 'questionName');
|
|
|
|
//$radios_results_enabled[]=$test;
|
|
// question level
|
|
//@todo move levles into a table
|
|
$select_level = array (1,2,3,4,5);
|
|
//$radios_results_enabled[] =
|
|
foreach($select_level as $val) {
|
|
$radios_results_enabled[] = FormValidator :: createElement ('radio', null, null,$val,$val);
|
|
}
|
|
$form->addGroup($radios_results_enabled,'questionLevel',get_lang('Difficulty'));
|
|
|
|
$renderer->setElementTemplate('<div class="row"><div class="label">{label}</div><div class="formw" >{element}</div></div>','questionName');
|
|
$renderer->setElementTemplate('<div class="row"><div class="label">{label}</div><div class="formw">{element}</div></div>','questionLevel');
|
|
$form->addRule('questionName', get_lang('GiveQuestion'), 'required');
|
|
|
|
// default content
|
|
$isContent = isset($_REQUEST['isContent']) ? intval($_REQUEST['isContent']) : null;
|
|
|
|
// question type
|
|
$answerType= intval($_REQUEST['answerType']);
|
|
$form->addElement('hidden','answerType',$_REQUEST['answerType']);
|
|
|
|
// html editor
|
|
$editor_config = array('ToolbarSet' => 'TestQuestionDescription', 'Width' => '100%', 'Height' => '150');
|
|
if(is_array($fck_config)){
|
|
$editor_config = array_merge($editor_config, $fck_config);
|
|
}
|
|
if(!api_is_allowed_to_edit(null,true)) $editor_config['UserStatus'] = 'student';
|
|
|
|
$form -> addElement('html','<div class="row">
|
|
<div class="label"></div>
|
|
<div class="formw" style="height:50px">
|
|
<a href="javascript://" onclick=" return show_media()"> <span id="media_icon"> <img style="vertical-align: middle;" src="../img/looknfeel.png" alt="" /> '.get_lang('EnrichQuestion').'</span></a>
|
|
</div>
|
|
</div>');
|
|
|
|
$form -> addElement ('html','<div class="HideFCKEditor" id="HiddenFCKquestionDescription" >');
|
|
$form->add_html_editor('questionDescription', get_lang('langQuestionDescription'), false, false, $editor_config);
|
|
$form -> addElement ('html','</div>');
|
|
|
|
$renderer->setElementTemplate('<div class="row"><div class="label">{label}</div><div class="formw">{element}</div></div>','questionDescription');
|
|
|
|
// hidden values
|
|
$form->addElement('hidden','myid',$_REQUEST['myid']);
|
|
|
|
|
|
if (!isset($_GET['fromExercise'])) {
|
|
switch($answerType) {
|
|
case 1: $this->question = get_lang('langDefaultUniqueQuestion'); break;
|
|
case 2: $this->question = get_lang('langDefaultMultipleQuestion'); break;
|
|
case 3: $this->question = get_lang('langDefaultFillBlankQuestion'); break;
|
|
case 4: $this->question = get_lang('langDefaultMathingQuestion'); break;
|
|
case 5: $this->question = get_lang('langDefaultOpenQuestion'); break;
|
|
case 9: $this->question = get_lang('langDefaultMultipleQuestion'); break;
|
|
}
|
|
}
|
|
$form->addElement('html','</div>');
|
|
// default values
|
|
$defaults = array();
|
|
$defaults['questionName'] = $this -> question;
|
|
$defaults['questionDescription'] = $this -> description;
|
|
$defaults['questionLevel'] = $this -> level;
|
|
|
|
//Came from he question pool
|
|
if (isset($_GET['fromExercise'])) {
|
|
$form->setDefaults($defaults);
|
|
}
|
|
|
|
if (!empty($_REQUEST['myid'])) {
|
|
$form->setDefaults($defaults);
|
|
} else {
|
|
if ($isContent == 1) {
|
|
$form->setDefaults($defaults);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* function which process the creation of questions
|
|
* @param FormValidator $form the formvalidator instance
|
|
* @param Exercise $objExercise the Exercise instance
|
|
*/
|
|
function processCreation ($form, $objExercise) {
|
|
$this -> updateTitle($form->getSubmitValue('questionName'));
|
|
$this -> updateDescription($form->getSubmitValue('questionDescription'));
|
|
$this -> updateLevel($form->getSubmitValue('questionLevel'));
|
|
$this -> save($objExercise -> id);
|
|
// modify the exercise
|
|
$objExercise->addToList($this -> id);
|
|
$objExercise->update_question_positions();
|
|
|
|
}
|
|
|
|
/**
|
|
* abstract function which creates the form to create / edit the answers of the question
|
|
* @param the formvalidator instance
|
|
*/
|
|
abstract function createAnswersForm ($form);
|
|
|
|
/**
|
|
* abstract function which process the creation of answers
|
|
* @param the formvalidator instance
|
|
*/
|
|
abstract function processAnswersCreation ($form);
|
|
|
|
|
|
/**
|
|
* Displays the menu of question types
|
|
*/
|
|
static function display_type_menu ($feedbacktype = 0) {
|
|
global $exerciseId;
|
|
// 1. by default we show all the question types
|
|
$question_type_custom_list = self::$questionTypes;
|
|
|
|
if (!isset($feedbacktype)) $feedbacktype=0;
|
|
if ($feedbacktype==1) {
|
|
//2. but if it is a feedback DIRECT we only show the UNIQUE_ANSWER type that is currently available
|
|
//$question_type_custom_list = array ( UNIQUE_ANSWER => self::$questionTypes[UNIQUE_ANSWER]);
|
|
$question_type_custom_list = array ( UNIQUE_ANSWER => self::$questionTypes[UNIQUE_ANSWER],HOT_SPOT_DELINEATION => self::$questionTypes[HOT_SPOT_DELINEATION]);
|
|
} else {
|
|
unset($question_type_custom_list[HOT_SPOT_DELINEATION]);
|
|
}
|
|
|
|
//blocking edition
|
|
|
|
$show_quiz_edition = true;
|
|
if (isset($exerciseId) && !empty($exerciseId)) {
|
|
$TBL_LP_ITEM = Database::get_course_table(TABLE_LP_ITEM);
|
|
$sql="SELECT max_score FROM $TBL_LP_ITEM
|
|
WHERE item_type = '".TOOL_QUIZ."' AND path ='".Database::escape_string($exerciseId)."'";
|
|
$result = Database::query($sql);
|
|
if (Database::num_rows($result) > 0) {
|
|
$show_quiz_edition = false;
|
|
}
|
|
}
|
|
|
|
echo '<ul class="question_menu">';
|
|
|
|
foreach ($question_type_custom_list as $i=>$a_type) {
|
|
// include the class of the type
|
|
require_once($a_type[0]);
|
|
// get the picture of the type and the langvar which describes it
|
|
$img = $explanation = '';
|
|
eval('$img = '.$a_type[1].'::$typePicture;');
|
|
eval('$explanation = get_lang('.$a_type[1].'::$explanationLangVar);');
|
|
echo '<li>';
|
|
echo '<div class="icon_image_content">';
|
|
if ($show_quiz_edition) {
|
|
|
|
echo '<a href="admin.php?'.api_get_cidreq().'&newQuestion=yes&answerType='.$i.'">'.Display::return_icon($img, $explanation).'</a>';
|
|
//echo '<br>';
|
|
//echo '<a href="admin.php?'.api_get_cidreq().'&newQuestion=yes&answerType='.$i.'">'.$explanation.'</a>';
|
|
} else {
|
|
$img = pathinfo($img);
|
|
$img = $img['filename'];
|
|
echo ''.Display::return_icon($img.'_na.gif',$explanation).'';
|
|
//echo '<br>';
|
|
|
|
//echo ''.$explanation.'';
|
|
}
|
|
echo '</div>';
|
|
echo '</li>';
|
|
}
|
|
|
|
echo '<li>';
|
|
echo '<div class="icon_image_content">';
|
|
if ($show_quiz_edition) {
|
|
if ($feedbacktype==1) {
|
|
echo $url = '<a href="question_pool.php?'.api_get_cidreq().'&type=1&fromExercise='.$exerciseId.'">';
|
|
} else {
|
|
echo $url = '<a href="question_pool.php?'.api_get_cidreq().'&fromExercise='.$exerciseId.'">';
|
|
}
|
|
echo Display::return_icon('database.png', get_lang('GetExistingQuestion'), '');
|
|
} else {
|
|
echo Display::return_icon('database_na.png', get_lang('GetExistingQuestion'), '');
|
|
}
|
|
//echo '<br>';
|
|
//echo $url;
|
|
//echo get_lang('GetExistingQuestion');
|
|
echo '</a>';
|
|
echo '</div></li>';
|
|
echo '</ul>';
|
|
}
|
|
|
|
static function get_types_information(){
|
|
return self::$questionTypes;
|
|
}
|
|
|
|
static function updateId() {
|
|
return self::$questionTypes;
|
|
}
|
|
|
|
static function saveQuestionOption($question_id, $name, $position = 0) {
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
|
|
$params['question_id'] = intval($question_id);
|
|
$params['name'] = $name;
|
|
$params['position'] = $position;
|
|
$result = self::readQuestionOption($question_id);
|
|
$last_id = Database::insert($TBL_EXERCICE_QUESTION_OPTION, $params);
|
|
return $last_id;
|
|
}
|
|
|
|
static function deleteAllQuestionOptions($question_id) {
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
|
|
Database::delete($TBL_EXERCICE_QUESTION_OPTION, array('question_id = ?'=> $question_id));
|
|
}
|
|
|
|
static function updateQuestionOption($id, $params) {
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
|
|
$result = Database::update($TBL_EXERCICE_QUESTION_OPTION, $params, array('id = ?'=>$id));
|
|
return $result;
|
|
}
|
|
|
|
|
|
static function readQuestionOption($question_id, $db_name = null) {
|
|
if (empty($db_name)) {
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
|
|
} else {
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION, $db_name);
|
|
}
|
|
$result = Database::select('*', $TBL_EXERCICE_QUESTION_OPTION, array('where'=>array('question_id = ?' =>$question_id), 'order'=>'id ASC'));
|
|
return $result;
|
|
}
|
|
|
|
function return_header($feedback_type, $counter = null) {
|
|
$counter_label = '';
|
|
if (!is_null($counter)) {
|
|
$counter = intval($counter);
|
|
}
|
|
echo Display::div(get_lang("Question").' '.($counter_label).' : '.$this->question, array('id'=>'question_title', 'class'=>'sectiontitle'));
|
|
echo Display::div($this->description, array('id'=>'question_description'));
|
|
}
|
|
/**
|
|
* Create a question from a set of parameters
|
|
* @param int Quiz ID
|
|
* @param string Question name
|
|
* @param int Maximum result for the question
|
|
* @param int Type of question (see constants at beginning of question.class.php)
|
|
* @param int Question level/category
|
|
*/
|
|
function create_question ($quiz_id, $question_name, $max_score = 0, $type = 1, $level = 1) {
|
|
$tbl_quiz_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
$tbl_quiz_rel_question = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
|
|
$quiz_id = filter_var($quiz_id,FILTER_SANITIZE_NUMBER_INT);
|
|
$max_score = filter_var($max_score,FILTER_SANITIZE_NUMBER_FLOAT);
|
|
$type = filter_var($type,FILTER_SANITIZE_NUMBER_INT);
|
|
$level = filter_var($level,FILTER_SANITIZE_NUMBER_INT);
|
|
// Get the max position
|
|
$sql = "SELECT max(position) as max_position"
|
|
." FROM $tbl_quiz_question q INNER JOIN $tbl_quiz_rel_question r"
|
|
." ON q.id = r.question_id"
|
|
." AND exercice_id = $quiz_id";
|
|
$rs_max = Database::query($sql, __FILE__, __LINE__);
|
|
$row_max = Database::fetch_object($rs_max);
|
|
$max_position = $row_max->max_position +1;
|
|
|
|
// Insert the new question
|
|
$sql = "INSERT INTO $tbl_quiz_question"
|
|
." (question,ponderation,position,type,level) "
|
|
." VALUES('".Database::escape_string($question_name)."',"
|
|
." $max_score , $max_position, $type, $level)";
|
|
$rs = Database::query($sql);
|
|
// Get the question ID
|
|
$question_id = Database::get_last_insert_id();
|
|
// Get the max question_order
|
|
$sql = "SELECT max(question_order) as max_order "
|
|
."FROM $tbl_quiz_rel_question WHERE exercice_id = $quiz_id ";
|
|
$rs_max_order = Database::query($sql);
|
|
$row_max_order = Database::fetch_object($rs_max_order);
|
|
$max_order = $row_max_order->max_order + 1;
|
|
// Attach questions to quiz
|
|
$sql = "INSERT INTO $tbl_quiz_rel_question "
|
|
."(question_id,exercice_id,question_order)"
|
|
." VALUES($question_id, $quiz_id, $max_order)";
|
|
$rs = Database::query($sql);
|
|
return $question_id;
|
|
}
|
|
}
|
|
endif;
|
|
|