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1937 lines
68 KiB
1937 lines
68 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* Class Question
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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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* @author Julio Montoya <gugli100@gmail.com> lot of bug fixes
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* @author hubert.borderiou@grenet.fr - add question categories
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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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public $category_list;
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public $parent_id;
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public $category;
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public $isContent;
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public $course;
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public static $typePicture = 'new_question.png';
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public static $explanationLangVar = '';
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public $question_table_class = 'table table-striped';
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public 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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ORAL_EXPRESSION => array('oral_expression.class.php', 'OralExpression'),
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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(
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'multiple_answer_combination_true_false.class.php',
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'MultipleAnswerCombinationTrueFalse'
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),
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GLOBAL_MULTIPLE_ANSWER => array('global_multiple_answer.class.php' , 'GlobalMultipleAnswer'),
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CALCULATED_ANSWER => array('calculated_answer.class.php' , 'CalculatedAnswer'),
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UNIQUE_ANSWER_IMAGE => ['UniqueAnswerImage.php', 'UniqueAnswerImage']
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//MEDIA_QUESTION => array('media_question.class.php' , 'MediaQuestion')
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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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public function __construct()
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{
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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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$this->category = 0;
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// This variable is used when loading an exercise like an scenario with
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// an special hotspot: final_overlap, final_missing, final_excess
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$this->extra = '';
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$this->exerciseList = array();
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$this->course = api_get_course_info();
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$this->category_list = array();
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$this->parent_id = 0;
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}
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/**
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* @return int|null
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*/
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public function getIsContent()
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{
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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 information from the data base
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*
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* @author Olivier Brouckaert
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* @param int $id - question ID
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* @param int $course_id
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*
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* @return Question
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*/
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static function read($id, $course_id = null)
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{
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$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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$course_info = api_get_course_info();
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}
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$course_id = $course_info['real_id'];
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if (empty($course_id) || $course_id == -1 ) {
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return false;
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}
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$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
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$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
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$sql = "SELECT question, description, ponderation, position, type, picture, level, extra
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FROM $TBL_QUESTIONS
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WHERE c_id = $course_id AND 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($object->type);
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if (!empty($objQuestion)) {
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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 = $course_info;
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$objQuestion->category = TestCategory::getCategoryForQuestion($id);
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$sql = "SELECT exercice_id FROM $TBL_EXERCICE_QUESTION
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WHERE c_id = $course_id AND question_id = $id";
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$result_exercise_list = Database::query($sql);
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// fills the array with the exercises which this question is in
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if ($result_exercise_list) {
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while ($obj = Database::fetch_object($result_exercise_list)) {
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$objQuestion->exerciseList[] = $obj->exercice_id;
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}
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}
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return $objQuestion;
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}
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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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public function selectId()
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{
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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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public function selectTitle()
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{
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return $this->question;
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}
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/**
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* returns the question description
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*
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* @author Olivier Brouckaert
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* @return string - question description
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*/
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public function selectDescription()
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{
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$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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public 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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public 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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public 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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public function selectPicture()
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{
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return $this->picture;
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}
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/**
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* @return bool|string
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*/
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public function selectPicturePath()
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{
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if (!empty($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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public function selectExerciseList()
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{
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return $this->exerciseList;
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}
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/**
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* returns the number of exercises which this question is in
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*
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* @author Olivier Brouckaert
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* @return integer - number of exercises
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*/
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public function selectNbrExercises() {
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return sizeof($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 $title - question title
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*/
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public function updateTitle($title)
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{
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$this->question=$title;
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}
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/**
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* @param int $id
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*/
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public function updateParentId($id)
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{
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$this->parent_id = intval($id);
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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 $description - question description
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*/
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public function updateDescription($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 $weighting - question weighting
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*/
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public function updateWeighting($weighting)
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{
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$this->weighting = $weighting;
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}
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/**
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* @author Hubert Borderiou 12-10-2011
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* @param array of category $in_category
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*/
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public function updateCategory($in_category)
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{
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$this->category = $in_category;
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}
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/**
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* @author Hubert Borderiou 12-10-2011
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* @param int $in_positive
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*/
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public function updateScoreAlwaysPositive($in_positive)
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{
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$this->scoreAlwaysPositive = $in_positive;
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}
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/**
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* @author Hubert Borderiou 12-10-2011
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* @param int $in_positive
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*/
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public function updateUncheckedMayScore($in_positive)
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{
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$this->uncheckedMayScore = $in_positive;
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}
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/**
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* Save category of a question
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*
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* A question can have n categories
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* if category is empty, then question has no category then delete the category entry
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*
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* @param - int $in_positive
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* @author Julio Montoya - Adding multiple cat support
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*/
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public function saveCategories($category_list)
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{
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if (!empty($category_list)) {
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$this->deleteCategory();
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$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
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// update or add category for a question
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foreach ($category_list as $category_id) {
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$category_id = intval($category_id);
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$question_id = intval($this->id);
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$sql = "SELECT count(*) AS nb
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FROM $TBL_QUESTION_REL_CATEGORY
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WHERE
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category_id = $category_id
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AND question_id = $question_id
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AND c_id=".api_get_course_int_id();
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$res = Database::query($sql);
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$row = Database::fetch_array($res);
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if ($row['nb'] > 0) {
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//DO nothing
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//$sql = "UPDATE $TBL_QUESTION_REL_CATEGORY SET category_id = $category_id
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//WHERE question_id=$question_id AND c_id=".api_get_course_int_id();
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//$res = Database::query($sql);
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} else {
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$sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY (c_id, question_id, category_id)
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VALUES (" . api_get_course_int_id() . ", $question_id, $category_id)";
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Database::query($sql);
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}
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}
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}
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}
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/**
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* @author Hubert Borderiou 12-10-2011
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* @param int $in_category
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* in this version, a question can only have 1 category
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* if category is 0, then question has no category then delete the category entry
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*/
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public function saveCategory($in_category)
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{
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if ($in_category <= 0) {
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$this->deleteCategory();
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} else {
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// update or add category for a question
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$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
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$category_id = intval($in_category);
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$question_id = intval($this->id);
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$sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY
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WHERE question_id = $question_id AND c_id=" . api_get_course_int_id();
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$res = Database::query($sql);
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$row = Database::fetch_array($res);
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if ($row['nb'] > 0){
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$sql = "UPDATE $TBL_QUESTION_REL_CATEGORY SET category_id = $category_id
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WHERE question_id = $question_id AND c_id = " . api_get_course_int_id();
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Database::query($sql);
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} else {
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$sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY
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VALUES (" . api_get_course_int_id() . ", $question_id, $category_id)";
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Database::query($sql);
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}
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}
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}
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/**
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* @author hubert borderiou 12-10-2011
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* delete any category entry for question id
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* @param : none
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* delete the category for question
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*/
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public function deleteCategory()
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{
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$TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
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$question_id = intval($this->id);
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$sql = "DELETE FROM $TBL_QUESTION_REL_CATEGORY
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WHERE question_id = $question_id AND c_id = " . api_get_course_int_id();
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Database::query($sql);
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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 $position - question position
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*/
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public function updatePosition($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 $level - question level
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*/
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public function updateLevel($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 $type - answer type
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*/
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public function updateType($type)
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{
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$TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER);
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$course_id = $this->course['real_id'];
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if (empty($course_id)) {
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$course_id = api_get_course_int_id();
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}
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// if we really change the type
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if ($type != $this->type) {
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// if we don't change from "unique answer" to "multiple answers" (or conversely)
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if (
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!in_array($this->type, array(UNIQUE_ANSWER, MULTIPLE_ANSWER)) ||
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!in_array($type, array(UNIQUE_ANSWER, MULTIPLE_ANSWER))
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) {
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// removes old answers
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$sql = "DELETE FROM $TBL_REPONSES
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WHERE c_id = $course_id AND question_id = " . intval($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 $PictureName - Name of the picture
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* @return boolean - true if uploaded, otherwise false
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*/
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public function uploadPicture($Picture, $PictureName, $picturePath = null)
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{
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if (empty($picturePath)) {
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global $picturePath;
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}
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if (!file_exists($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(
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$this->course,
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'/images/' . $this->picture,
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'file',
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filesize($picturePath . '/' . $this->picture),
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$this->picture
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);
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if ($document_id) {
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return api_item_property_update(
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$this->course,
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TOOL_DOCUMENT,
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$document_id,
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'DocumentAdded',
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api_get_user_id()
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);
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}
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}
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return false;
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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.
|
|
* @author Toon Keppens
|
|
* @param string $Dimension - Resizing happens proportional according to given dimension: height|width|any
|
|
* @param integer $Max - Maximum size
|
|
* @return boolean - true if success, false if failed
|
|
*/
|
|
public function resizePicture($Dimension, $Max)
|
|
{
|
|
global $picturePath;
|
|
|
|
// if the question has an ID
|
|
if ($this->id) {
|
|
// Get dimensions from current image.
|
|
$my_image = new Image($picturePath . '/' . $this->picture);
|
|
|
|
$current_image_size = $my_image->get_image_size();
|
|
$current_width = $current_image_size['width'];
|
|
$current_height = $current_image_size['height'];
|
|
|
|
if ($current_width < $Max && $current_height < $Max)
|
|
return true;
|
|
elseif ($current_height == "")
|
|
return false;
|
|
|
|
// Resize according to height.
|
|
if ($Dimension == "height") {
|
|
$resize_scale = $current_height / $Max;
|
|
$new_height = $Max;
|
|
$new_width = ceil($current_width / $resize_scale);
|
|
}
|
|
|
|
// Resize according to width
|
|
if ($Dimension == "width") {
|
|
$resize_scale = $current_width / $Max;
|
|
$new_width = $Max;
|
|
$new_height = ceil($current_height / $resize_scale);
|
|
}
|
|
|
|
// Resize according to height or width, both should not be larger than $Max after resizing.
|
|
if ($Dimension == "any") {
|
|
if ($current_height > $current_width || $current_height == $current_width)
|
|
{
|
|
$resize_scale = $current_height / $Max;
|
|
$new_height = $Max;
|
|
$new_width = ceil($current_width / $resize_scale);
|
|
}
|
|
if ($current_height < $current_width)
|
|
{
|
|
$resize_scale = $current_width / $Max;
|
|
$new_width = $Max;
|
|
$new_height = ceil($current_height / $resize_scale);
|
|
}
|
|
}
|
|
|
|
$my_image->resize($new_width, $new_height);
|
|
$result = $my_image->send_image($picturePath . '/' . $this->picture);
|
|
|
|
if ($result) {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* deletes the picture
|
|
*
|
|
* @author Olivier Brouckaert
|
|
* @return boolean - true if removed, otherwise false
|
|
*/
|
|
public function removePicture()
|
|
{
|
|
global $picturePath;
|
|
|
|
// if the question has got an ID and if the picture exists
|
|
if ($this->id) {
|
|
$picture = $this->picture;
|
|
$this->picture = '';
|
|
|
|
return @unlink($picturePath . '/' . $picture) ? true : false;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Exports a picture to another question
|
|
*
|
|
* @author Olivier Brouckaert
|
|
* @param integer $questionId - ID of the target question
|
|
* @return boolean - true if copied, otherwise false
|
|
*/
|
|
public function exportPicture($questionId, $course_info)
|
|
{
|
|
$course_id = $course_info['real_id'];
|
|
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
$destination_path = api_get_path(SYS_COURSE_PATH) . $course_info['path'] . '/document/images';
|
|
$source_path = api_get_path(SYS_COURSE_PATH) . $this->course['path'] . '/document/images';
|
|
|
|
// if the question has got an ID and if the picture exists
|
|
if ($this->id && !empty($this->picture)) {
|
|
$picture = explode('.', $this->picture);
|
|
$extension = $picture[sizeof($picture) - 1];
|
|
$picture = 'quiz-' . $questionId . '.' . $extension;
|
|
$result = @copy($source_path . '/' . $this->picture, $destination_path . '/' . $picture) ? true : false;
|
|
//If copy was correct then add to the database
|
|
if ($result) {
|
|
$sql = "UPDATE $TBL_QUESTIONS SET picture='" . Database::escape_string($picture) . "'
|
|
WHERE c_id = $course_id AND id='" . intval($questionId) . "'";
|
|
Database::query($sql);
|
|
|
|
$document_id = add_document(
|
|
$course_info,
|
|
'/images/' . $picture,
|
|
'file',
|
|
filesize($destination_path . '/' . $picture),
|
|
$picture
|
|
);
|
|
if ($document_id) {
|
|
return api_item_property_update(
|
|
$course_info,
|
|
TOOL_DOCUMENT,
|
|
$document_id,
|
|
'DocumentAdded',
|
|
api_get_user_id()
|
|
);
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Saves the picture coming from POST into a temporary file
|
|
* Temporary pictures are used when we don't want to save a picture right after a form submission.
|
|
* For example, if we first show a confirmation box.
|
|
*
|
|
* @author Olivier Brouckaert
|
|
* @param string $Picture - temporary path of the picture to move
|
|
* @param string $PictureName - Name of the picture
|
|
*/
|
|
public function setTmpPicture($Picture, $PictureName)
|
|
{
|
|
global $picturePath;
|
|
$PictureName = explode('.', $PictureName);
|
|
$Extension = $PictureName[sizeof($PictureName) - 1];
|
|
|
|
// saves the picture into a temporary file
|
|
@move_uploaded_file($Picture, $picturePath . '/tmp.' . $Extension);
|
|
}
|
|
|
|
/**
|
|
* Sets the title
|
|
*/
|
|
public function setTitle($title)
|
|
{
|
|
$this->question = $title;
|
|
}
|
|
|
|
/**
|
|
* Sets extra info
|
|
*/
|
|
public function setExtra($extra)
|
|
{
|
|
$this->extra = $extra;
|
|
}
|
|
|
|
/**
|
|
* Moves the temporary question "tmp" to "quiz-$questionId"
|
|
* Temporary pictures are used when we don't want to save a picture right after a form submission.
|
|
* For example, if we first show a confirmation box.
|
|
*
|
|
* @author Olivier Brouckaert
|
|
* @return boolean - true if moved, otherwise false
|
|
*/
|
|
function getTmpPicture() {
|
|
global $picturePath;
|
|
|
|
// if the question has got an ID and if the picture exists
|
|
if ($this->id) {
|
|
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 $exerciseId - exercise ID if saving in an exercise
|
|
*/
|
|
public function save($exerciseId = 0)
|
|
{
|
|
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
|
|
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
|
|
$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;
|
|
$c_id = $this->course['real_id'];
|
|
$category = $this->category;
|
|
|
|
// question already exists
|
|
if(!empty($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 c_id = $c_id AND id = " . intval($id);
|
|
Database::query($sql);
|
|
$this->saveCategory($category);
|
|
|
|
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,
|
|
$TBL_EXERCICE_QUESTION as test_question
|
|
WHERE
|
|
question.id = test_question.question_id AND
|
|
test_question.exercice_id = " . intval($exerciseId) . " AND
|
|
question.c_id = $c_id AND
|
|
test_question.c_id = $c_id ";
|
|
$result = Database::query($sql);
|
|
$current_position = Database::result($result,0,0);
|
|
$this->updatePosition($current_position+1);
|
|
$position = $this->position;
|
|
$sql = "INSERT INTO $TBL_QUESTIONS (
|
|
c_id, question, description, ponderation, position, type, picture, extra, level
|
|
)
|
|
VALUES (
|
|
$c_id,
|
|
'" . Database::escape_string($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);
|
|
|
|
$this->id = Database::insert_id();
|
|
if ($this->id) {
|
|
|
|
$sql = "UPDATE $TBL_QUESTIONS SET id = iid WHERE iid = {$this->id}";
|
|
Database::query($sql);
|
|
|
|
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 (
|
|
c_id, question_id , answer, correct, comment, ponderation, position, hotspot_coordinates,
|
|
hotspot_type
|
|
)
|
|
VALUES (
|
|
$c_id,
|
|
" . intval($this->id) . ",
|
|
'',
|
|
NULL,
|
|
'',
|
|
'10',
|
|
'1',
|
|
'0;0|0|0',
|
|
'square'
|
|
)";
|
|
Database::query($sql);
|
|
$id = Database::insert_id();
|
|
if ($id) {
|
|
$sql = "UPDATE $TBL_ANSWERS SET id = id_auto WHERE id_auto = $id";
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
|
|
if ($type == HOT_SPOT_DELINEATION) {
|
|
$TBL_ANSWERS = Database::get_course_table(
|
|
TABLE_QUIZ_ANSWER
|
|
);
|
|
$sql = "INSERT INTO $TBL_ANSWERS (
|
|
c_id, question_id, answer, correct, comment, ponderation, position, hotspot_coordinates,
|
|
hotspot_type
|
|
)
|
|
VALUES (
|
|
$c_id, " . intval($this->id) . ", '', NULL , '', '10' , '1', '0;0|0|0', 'delineation'
|
|
)";
|
|
Database::query($sql);
|
|
|
|
$id = Database::insert_id();
|
|
if ($id) {
|
|
$sql = "UPDATE $TBL_ANSWERS SET id = id_auto WHERE id_auto = $id";
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
public 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 %
|
|
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/ChamiloIndexer.class.php');
|
|
require_once(api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php');
|
|
|
|
$di = new ChamiloIndexer();
|
|
if ($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 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 - from $this->save() or not
|
|
*/
|
|
public function addToList($exerciseId, $fromSave = false)
|
|
{
|
|
$exerciseRelQuestionTable = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
|
|
$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 $exerciseRelQuestionTable (c_id, question_id, exercice_id, question_order)
|
|
VALUES ({$this->course['real_id']}, " . intval($id) . ", " . intval($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)
|
|
{
|
|
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
|
|
|
|
$id = $this->id;
|
|
|
|
// searches the position of the exercise ID in the list
|
|
$pos = array_search($exerciseId, $this->exerciseList);
|
|
|
|
$course_id = api_get_course_int_id();
|
|
|
|
// exercise not found
|
|
if($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
|
|
c_id = $course_id
|
|
AND question_id = " . intval($id) . "
|
|
AND exercice_id = " . intval($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
|
|
c_id = $course_id
|
|
AND exercice_id = " . intval($exerciseId) . "
|
|
AND question_order > " . $row['question_order'];
|
|
$res = Database::query($sql);
|
|
}
|
|
}
|
|
|
|
$sql = "DELETE FROM $TBL_EXERCICE_QUESTION
|
|
WHERE
|
|
c_id = $course_id
|
|
AND question_id = " . intval($id) . "
|
|
AND exercice_id = " . intval($exerciseId);
|
|
Database::query($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)
|
|
{
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
|
|
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
$TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER);
|
|
$TBL_QUIZ_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
|
|
|
|
$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 c_id = $course_id AND question_id = ".intval($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
|
|
c_id= $course_id
|
|
AND exercice_id = " . intval($row['exercice_id']) . "
|
|
AND question_order > " . $row['question_order'];
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
}
|
|
|
|
$sql = "DELETE FROM $TBL_EXERCICE_QUESTION WHERE c_id = $course_id AND question_id = " . intval($id) . "";
|
|
Database::query($sql);
|
|
|
|
$sql = "DELETE FROM $TBL_QUESTIONS WHERE c_id = $course_id AND id = " . intval($id) . "";
|
|
Database::query($sql);
|
|
|
|
$sql = "DELETE FROM $TBL_REPONSES WHERE c_id = $course_id AND question_id = " . intval($id) . "";
|
|
Database::query($sql);
|
|
|
|
// remove the category of this question in the question_rel_category table
|
|
$sql = "DELETE FROM $TBL_QUIZ_QUESTION_REL_CATEGORY
|
|
WHERE c_id = $course_id AND question_id = " . intval($id) . " AND c_id=" . api_get_course_int_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();
|
|
} else {
|
|
// just removes the exercise from the list
|
|
$this->removeFromList($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, $id, 'QuizQuestionDeleted', api_get_user_id());
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Duplicates the question
|
|
*
|
|
* @author Olivier Brouckaert
|
|
* @param array Course info of the destination course
|
|
* @return int ID of the new question
|
|
*/
|
|
public function duplicate($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);
|
|
$TBL_QUESTION_OPTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
|
|
|
|
$question = $this->question;
|
|
$description = $this->description;
|
|
$weighting = $this->weighting;
|
|
$position = $this->position;
|
|
$type = $this->type;
|
|
$level = intval($this->level);
|
|
$extra = $this->extra;
|
|
|
|
//Using the same method used in the course copy to transform URLs
|
|
|
|
if ($this->course['id'] != $course_info['id']) {
|
|
$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']
|
|
);
|
|
}
|
|
|
|
$course_id = $course_info['real_id'];
|
|
|
|
//Read the source options
|
|
$options = self::readQuestionOption($this->id, $this->course['real_id']);
|
|
|
|
//Inserting in the new course db / or the same course db
|
|
$sql = "INSERT INTO $TBL_QUESTIONS (
|
|
c_id, question, description, ponderation, position, type, level, extra
|
|
)
|
|
VALUES (
|
|
'$course_id',
|
|
'" . 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);
|
|
|
|
$new_question_id = Database::insert_id();
|
|
if ($new_question_id) {
|
|
|
|
$sql = "UPDATE $TBL_QUESTIONS SET id = iid WHERE iid = $new_question_id";
|
|
Database::query($sql);
|
|
|
|
if (!empty($options)) {
|
|
//Saving the quiz_options
|
|
foreach ($options as $item) {
|
|
$item['question_id'] = $new_question_id;
|
|
$item['c_id'] = $course_id;
|
|
unset($item['id']);
|
|
$id = Database::insert($TBL_QUESTION_OPTIONS, $item);
|
|
|
|
$sql = "UPDATE $TBL_QUESTION_OPTIONS SET id = iid WHERE iid = $id";
|
|
Database::query($sql);
|
|
}
|
|
}
|
|
|
|
// Duplicates the picture of the hotspot
|
|
$this->exportPicture($new_question_id, $course_info);
|
|
}
|
|
|
|
return $new_question_id;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
*/
|
|
public function get_question_type_name()
|
|
{
|
|
$key = self::$questionTypes[$this->type];
|
|
return get_lang($key[1]);
|
|
}
|
|
|
|
/**
|
|
* @param string $type
|
|
* @return null
|
|
*/
|
|
public static function get_question_type($type)
|
|
{
|
|
if ($type == ORAL_EXPRESSION && api_get_setting('enable_nanogong') != 'true') {
|
|
return null;
|
|
}
|
|
return self::$questionTypes[$type];
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public static function get_question_type_list()
|
|
{
|
|
if (api_get_setting('enable_nanogong') != 'true') {
|
|
self::$questionTypes[ORAL_EXPRESSION] = null;
|
|
unset(self::$questionTypes[ORAL_EXPRESSION]);
|
|
}
|
|
return self::$questionTypes;
|
|
}
|
|
|
|
/**
|
|
* Returns an instance of the class corresponding to the type
|
|
* @param integer $type the type of the question
|
|
* @return an instance of a Question subclass (or of Questionc class by default)
|
|
*/
|
|
public static function getInstance($type)
|
|
{
|
|
if (!is_null($type)) {
|
|
list($file_name, $class_name) = self::get_question_type($type);
|
|
if (!empty($file_name)) {
|
|
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 redefine this function to add fields...
|
|
* @param FormValidator $form
|
|
*/
|
|
public function createForm(&$form)
|
|
{
|
|
echo '<style>
|
|
.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";
|
|
}
|
|
}
|
|
</script>';
|
|
|
|
// question name
|
|
$form->addElement('text', 'questionName', get_lang('Question'), array('class' => 'span6'));
|
|
$form->addRule('questionName', get_lang('GiveQuestion'), 'required');
|
|
|
|
// default content
|
|
$isContent = isset($_REQUEST['isContent']) ? intval($_REQUEST['isContent']) : null;
|
|
|
|
// Question type
|
|
$answerType = isset($_REQUEST['answerType']) ? intval($_REQUEST['answerType']) : null;
|
|
$form->addElement('hidden','answerType', $answerType);
|
|
|
|
// html editor
|
|
$editorConfig = array(
|
|
'ToolbarSet' => 'TestQuestionDescription',
|
|
'Height' => '150'
|
|
);
|
|
|
|
if (!api_is_allowed_to_edit(null,true)) {
|
|
$editorConfig['UserStatus'] = 'student';
|
|
}
|
|
|
|
$form->addButtonAdvancedSettings('advanced_params');
|
|
$form->addElement('html', '<div id="advanced_params_options" style="display:none">');
|
|
|
|
$form->addHtmlEditor('questionDescription', get_lang('QuestionDescription'), false, false, $editorConfig);
|
|
|
|
// hidden values
|
|
$my_id = isset($_REQUEST['myid']) ? intval($_REQUEST['myid']) : null;
|
|
$form->addElement('hidden', 'myid', $my_id);
|
|
|
|
if ($this->type != MEDIA_QUESTION) {
|
|
|
|
// Advanced parameters
|
|
|
|
$select_level = Question::get_default_levels();
|
|
$form->addElement('select', 'questionLevel', get_lang('Difficulty'), $select_level);
|
|
|
|
// Categories
|
|
$tabCat = TestCategory::getCategoriesIdAndName();
|
|
$form->addElement('select', 'questionCategory', get_lang('Category'), $tabCat);
|
|
|
|
if (in_array($this->type, array(UNIQUE_ANSWER, MULTIPLE_ANSWER))) {
|
|
$buttonValue = $this->type == UNIQUE_ANSWER ? 'ConvertToMultipleAnswer' : 'ConvertToUniqueAnswer';
|
|
$form->addElement('button', 'convertAnswer', get_lang($buttonValue));
|
|
}
|
|
|
|
//Medias
|
|
//$course_medias = Question::prepare_course_media_select(api_get_course_int_id());
|
|
//$form->addElement('select', 'parent_id', get_lang('AttachToMedia'), $course_medias);
|
|
}
|
|
|
|
$form->addElement('html', '</div>');
|
|
|
|
if (!isset($_GET['fromExercise'])) {
|
|
switch ($answerType) {
|
|
case 1:
|
|
$this->question = get_lang('DefaultUniqueQuestion');
|
|
break;
|
|
case 2:
|
|
$this->question = get_lang('DefaultMultipleQuestion');
|
|
break;
|
|
case 3:
|
|
$this->question = get_lang('DefaultFillBlankQuestion');
|
|
break;
|
|
case 4:
|
|
$this->question = get_lang('DefaultMathingQuestion');
|
|
break;
|
|
case 5:
|
|
$this->question = get_lang('DefaultOpenQuestion');
|
|
break;
|
|
case 9:
|
|
$this->question = get_lang('DefaultMultipleQuestion');
|
|
break;
|
|
}
|
|
}
|
|
|
|
// default values
|
|
$defaults = array();
|
|
$defaults['questionName'] = $this->question;
|
|
$defaults['questionDescription'] = $this->description;
|
|
$defaults['questionLevel'] = $this->level;
|
|
$defaults['questionCategory'] = $this->category;
|
|
|
|
// Came from he question pool
|
|
if (isset($_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
|
|
* @param Exercise $objExercise
|
|
*/
|
|
public function processCreation($form, $objExercise = null)
|
|
{
|
|
$this->updateTitle($form->getSubmitValue('questionName'));
|
|
$this->updateDescription($form->getSubmitValue('questionDescription'));
|
|
$this->updateLevel($form->getSubmitValue('questionLevel'));
|
|
$this->updateCategory($form->getSubmitValue('questionCategory'));
|
|
|
|
//Save normal question if NOT media
|
|
if ($this->type != MEDIA_QUESTION) {
|
|
$this->save($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
|
|
*
|
|
* @param Exercise $objExercise
|
|
*/
|
|
public static function display_type_menu($objExercise)
|
|
{
|
|
$feedback_type = $objExercise->feedback_type;
|
|
$exerciseId = $objExercise->id;
|
|
|
|
// 1. by default we show all the question types
|
|
$question_type_custom_list = self::get_question_type_list();
|
|
|
|
if (!isset($feedback_type)) {
|
|
$feedback_type = 0;
|
|
}
|
|
|
|
if ($feedback_type == 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],
|
|
HOT_SPOT_DELINEATION => self::$questionTypes[HOT_SPOT_DELINEATION]
|
|
);
|
|
} else {
|
|
unset($question_type_custom_list[HOT_SPOT_DELINEATION]);
|
|
}
|
|
|
|
echo '<div class="well">';
|
|
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">';
|
|
if ($objExercise->exercise_was_added_in_lp == true) {
|
|
$img = pathinfo($img);
|
|
$img = $img['filename'] . '_na.' . $img['extension'];
|
|
echo Display::return_icon($img, $explanation, null, ICON_SIZE_BIG);
|
|
} else {
|
|
echo '<a href="admin.php?' . api_get_cidreq() . '&newQuestion=yes&answerType=' . $i . '">' .
|
|
Display::return_icon($img, $explanation, null, ICON_SIZE_BIG) . '</a>';
|
|
}
|
|
echo '</div>';
|
|
echo '</li>';
|
|
}
|
|
|
|
echo '<li>';
|
|
echo '<div class="icon_image_content">';
|
|
if ($objExercise->exercise_was_added_in_lp == true) {
|
|
echo Display::return_icon('database_na.png', get_lang('GetExistingQuestion'), null, ICON_SIZE_BIG);
|
|
} else {
|
|
if ($feedback_type == 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'), null, ICON_SIZE_BIG);
|
|
}
|
|
echo '</a>';
|
|
echo '</div></li>';
|
|
echo '</ul>';
|
|
echo '</div>';
|
|
}
|
|
|
|
/**
|
|
* @param int $question_id
|
|
* @param string $name
|
|
* @param int $course_id
|
|
* @param int $position
|
|
* @return bool|int
|
|
*/
|
|
static function saveQuestionOption($question_id, $name, $course_id, $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;
|
|
$params['c_id'] = $course_id;
|
|
$result = self::readQuestionOption($question_id, $course_id);
|
|
$last_id = Database::insert($TBL_EXERCICE_QUESTION_OPTION, $params);
|
|
if ($last_id) {
|
|
$sql = "UPDATE $TBL_EXERCICE_QUESTION_OPTION SET id = iid WHERE iid = $last_id";
|
|
Database::query($sql);
|
|
}
|
|
|
|
return $last_id;
|
|
}
|
|
|
|
/**
|
|
* @param int $question_id
|
|
* @param int $course_id
|
|
*/
|
|
static function deleteAllQuestionOptions($question_id, $course_id)
|
|
{
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
|
|
Database::delete(
|
|
$TBL_EXERCICE_QUESTION_OPTION,
|
|
array(
|
|
'c_id = ? AND question_id = ?' => array(
|
|
$course_id,
|
|
$question_id
|
|
)
|
|
)
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param int $id
|
|
* @param array $params
|
|
* @param int $course_id
|
|
* @return bool|int
|
|
*/
|
|
static function updateQuestionOption($id, $params, $course_id)
|
|
{
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(
|
|
TABLE_QUIZ_QUESTION_OPTION
|
|
);
|
|
$result = Database::update(
|
|
$TBL_EXERCICE_QUESTION_OPTION,
|
|
$params,
|
|
array('c_id = ? AND id = ?' => array($course_id, $id))
|
|
);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* @param int $question_id
|
|
* @param int $course_id
|
|
* @return array
|
|
*/
|
|
static function readQuestionOption($question_id, $course_id)
|
|
{
|
|
$TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(
|
|
TABLE_QUIZ_QUESTION_OPTION
|
|
);
|
|
$result = Database::select(
|
|
'*',
|
|
$TBL_EXERCICE_QUESTION_OPTION,
|
|
array(
|
|
'where' => array(
|
|
'c_id = ? AND question_id = ?' => array(
|
|
$course_id,
|
|
$question_id
|
|
)
|
|
),
|
|
'order' => 'id ASC'
|
|
)
|
|
);
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Shows question title an description
|
|
*
|
|
* @param string $feedback_type
|
|
* @param int $counter
|
|
* @param float $score
|
|
*/
|
|
function return_header($feedback_type = null, $counter = null, $score = null)
|
|
{
|
|
$counter_label = '';
|
|
if (!empty($counter)) {
|
|
$counter_label = intval($counter);
|
|
}
|
|
$score_label = get_lang('Wrong');
|
|
$class = 'error';
|
|
if ($score['pass'] == true) {
|
|
$score_label = get_lang('Correct');
|
|
$class = 'success';
|
|
}
|
|
|
|
if ($this->type == FREE_ANSWER || $this->type == ORAL_EXPRESSION) {
|
|
$score['revised'] = isset($score['revised']) ? $score['revised'] : false;
|
|
if ($score['revised'] == true) {
|
|
$score_label = get_lang('Revised');
|
|
$class = '';
|
|
} else {
|
|
$score_label = get_lang('NotRevised');
|
|
$class = 'error';
|
|
}
|
|
}
|
|
$question_title = $this->question;
|
|
|
|
// display question category, if any
|
|
$header = TestCategory::returnCategoryAndTitle($this->id);
|
|
$show_media = null;
|
|
if ($show_media) {
|
|
$header .= $this->show_media_content();
|
|
}
|
|
|
|
$header .= Display::page_subheader2($counter_label . ". " . $question_title);
|
|
$header .= Display::div(
|
|
"<div class=\"rib rib-$class\"><h3>$score_label'</h3></div> <h4>{$score['result']}</h4>",
|
|
array('class' => 'ribbon')
|
|
);
|
|
$header .= Display::div($this->description, array('id' => 'question_description'));
|
|
return $header;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
public function create_question(
|
|
$quiz_id,
|
|
$question_name,
|
|
$question_description = "" ,
|
|
$max_score = 0,
|
|
$type = 1,
|
|
$level = 1
|
|
) {
|
|
$course_id = api_get_course_int_id();
|
|
|
|
$tbl_quiz_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
$tbl_quiz_rel_question = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
|
|
|
|
$quiz_id = intval($quiz_id);
|
|
$max_score = (float) $max_score;
|
|
$type = intval($type);
|
|
$level = intval($level);
|
|
|
|
// 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 AND
|
|
q.c_id = $course_id AND
|
|
r.c_id = $course_id";
|
|
$rs_max = Database::query($sql);
|
|
$row_max = Database::fetch_object($rs_max);
|
|
$max_position = $row_max->max_position + 1;
|
|
|
|
// Insert the new question
|
|
$sql = "INSERT INTO $tbl_quiz_question (
|
|
c_id, question, description, ponderation, position, type, level
|
|
)
|
|
VALUES (
|
|
$course_id,
|
|
'" . Database::escape_string($question_name) . "',
|
|
'" . Database::escape_string($question_description) . "',
|
|
'$max_score',
|
|
$max_position,
|
|
$type,
|
|
$level
|
|
)";
|
|
Database::query($sql);
|
|
|
|
// Get the question ID
|
|
$question_id = Database::insert_id();
|
|
if ($question_id) {
|
|
|
|
$sql = "UPDATE $tbl_quiz_question SET id = iid WHERE iid = $question_id";
|
|
Database::query($sql);
|
|
|
|
// Get the max question_order
|
|
$sql = "SELECT max(question_order) as max_order
|
|
FROM $tbl_quiz_rel_question
|
|
WHERE c_id = $course_id AND 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 $tbl_quiz_rel_question (c_id, question_id,exercice_id,question_order)
|
|
VALUES($course_id, $question_id, $quiz_id, $max_order)";
|
|
Database::query($sql);
|
|
}
|
|
|
|
return $question_id;
|
|
}
|
|
|
|
/**
|
|
* @return array the image filename of the question type
|
|
*/
|
|
public function get_type_icon_html()
|
|
{
|
|
$type = $this->selectType();
|
|
$tabQuestionList = Question::get_question_type_list(); // [0]=file to include [1]=type name
|
|
|
|
require_once $tabQuestionList[$type][0];
|
|
eval('$img = ' . $tabQuestionList[$type][1] . '::$typePicture;');
|
|
eval('$explanation = get_lang(' . $tabQuestionList[$type][1] . '::$explanationLangVar);');
|
|
return array($img, $explanation);
|
|
}
|
|
|
|
/**
|
|
* Get course medias
|
|
* @param int course id
|
|
*/
|
|
static function get_course_medias(
|
|
$course_id,
|
|
$start = 0,
|
|
$limit = 100,
|
|
$sidx = "question",
|
|
$sord = "ASC",
|
|
$where_condition = array()
|
|
)
|
|
{
|
|
$table_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
$default_where = array('c_id = ? AND parent_id = 0 AND type = ?' => array($course_id, MEDIA_QUESTION));
|
|
$result = Database::select(
|
|
'*',
|
|
$table_question,
|
|
array(
|
|
'limit' => " $start, $limit",
|
|
'where' => $default_where,
|
|
'order' => "$sidx $sord"
|
|
)
|
|
);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Get count course medias
|
|
* @param int course id
|
|
*
|
|
* @return int
|
|
*/
|
|
static function get_count_course_medias($course_id)
|
|
{
|
|
$table_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
|
|
$result = Database::select(
|
|
'count(*) as count',
|
|
$table_question,
|
|
array('where' => array('c_id = ? AND parent_id = 0 AND type = ?' => array($course_id, MEDIA_QUESTION))),
|
|
'first'
|
|
);
|
|
|
|
if ($result && isset($result['count'])) {
|
|
return $result['count'];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @param int $course_id
|
|
* @return array
|
|
*/
|
|
public static function prepare_course_media_select($course_id)
|
|
{
|
|
$medias = self::get_course_medias($course_id);
|
|
$media_list = array();
|
|
$media_list[0] = get_lang('NoMedia');
|
|
|
|
if (!empty($medias)) {
|
|
foreach($medias as $media) {
|
|
$media_list[$media['id']] = empty($media['question']) ? get_lang('Untitled') : $media['question'];
|
|
}
|
|
}
|
|
return $media_list;
|
|
}
|
|
|
|
/**
|
|
* @return array
|
|
*/
|
|
public static function get_default_levels()
|
|
{
|
|
$select_level = array(
|
|
1 => 1,
|
|
2 => 2,
|
|
3 => 3,
|
|
4 => 4,
|
|
5 => 5
|
|
);
|
|
return $select_level;
|
|
}
|
|
|
|
/**
|
|
* @return null|string
|
|
*/
|
|
public function show_media_content()
|
|
{
|
|
$html = null;
|
|
if ($this->parent_id != 0) {
|
|
$parent_question = Question::read($this->parent_id);
|
|
$html = $parent_question->show_media_content();
|
|
} else {
|
|
$html .= Display::page_subheader($this->selectTitle());
|
|
$html .= $this->selectDescription();
|
|
}
|
|
return $html;
|
|
}
|
|
|
|
/**
|
|
* Swap between unique and multiple type answers
|
|
* @return object
|
|
*/
|
|
public function swapSimpleAnswerTypes()
|
|
{
|
|
$oppositeAnswers = array(
|
|
UNIQUE_ANSWER => MULTIPLE_ANSWER,
|
|
MULTIPLE_ANSWER => UNIQUE_ANSWER
|
|
);
|
|
$this->type = $oppositeAnswers[$this->type];
|
|
Database::update(
|
|
Database::get_course_table(TABLE_QUIZ_QUESTION),
|
|
array('type' => $this->type),
|
|
array('c_id = ? AND id = ?' => array($this->course['real_id'], $this->id))
|
|
);
|
|
$answerClasses = array(
|
|
UNIQUE_ANSWER => 'UniqueAnswer',
|
|
MULTIPLE_ANSWER => 'MultipleAnswer'
|
|
);
|
|
$swappedAnswer = new $answerClasses[$this->type];
|
|
foreach ($this as $key => $value) {
|
|
$swappedAnswer->$key = $value;
|
|
}
|
|
return $swappedAnswer;
|
|
}
|
|
}
|
|
|