Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/exercice/exercise.class.php

4953 lines
214 KiB

<?php
/* For licensing terms, see /license.txt */
/**
* Class Exercise
*
* Allows to instantiate an object of type Exercise
* @package chamilo.exercise
* @author Olivier Brouckaert
* @author Julio Montoya Cleaning exercises
* Modified by Hubert Borderiou #294
*/
class Exercise
{
public $id;
public $name;
public $title;
public $exercise;
public $description;
public $sound;
public $type; //ALL_ON_ONE_PAGE or ONE_PER_PAGE
public $random;
public $random_answers;
public $active;
public $timeLimit;
public $attempts;
public $feedback_type;
public $end_time;
public $start_time;
public $questionList; // array with the list of this exercise's questions
public $results_disabled;
public $expired_time;
public $course;
public $course_id;
public $propagate_neg;
public $review_answers;
public $randomByCat;
public $text_when_finished;
public $display_category_name;
public $pass_percentage;
public $edit_exercise_in_lp = false;
public $is_gradebook_locked = false;
public $exercise_was_added_in_lp = false;
public $lpList = array();
public $force_edit_exercise_in_lp = false;
public $sessionId = 0;
public $debug = false;
/**
* Constructor of the class
*
* @author Olivier Brouckaert
*/
public function __construct($course_id = null)
{
$this->id = 0;
$this->exercise = '';
$this->description = '';
$this->sound = '';
$this->type = ALL_ON_ONE_PAGE;
$this->random = 0;
$this->random_answers = 0;
$this->active = 1;
$this->questionList = array();
$this->timeLimit = 0;
$this->end_time = '0000-00-00 00:00:00';
$this->start_time = '0000-00-00 00:00:00';
$this->results_disabled = 1;
$this->expired_time = '0000-00-00 00:00:00';
$this->propagate_neg = 0;
$this->review_answers = false;
$this->randomByCat = 0; //
$this->text_when_finished = ""; //
$this->display_category_name = 0;
$this->pass_percentage = null;
if (!empty($course_id)) {
$course_info = api_get_course_info_by_id($course_id);
} else {
$course_info = api_get_course_info();
}
$this->course_id = $course_info['real_id'];
$this->course = $course_info;
}
/**
* Reads exercise information from the data base
*
* @author Olivier Brouckaert
* @param integer $id - exercise Id
*
* @return boolean - true if exercise exists, otherwise false
*/
public function read($id)
{
global $_configuration;
$TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST);
$table_lp_item = Database::get_course_table(TABLE_LP_ITEM);
$id = intval($id);
if (empty($this->course_id)) {
return false;
}
$sql = "SELECT * FROM $TBL_EXERCICES WHERE c_id = ".$this->course_id." AND id = ".$id;
$result = Database::query($sql);
// if the exercise has been found
if ($object = Database::fetch_object($result)) {
$this->id = $id;
$this->exercise = $object->title;
$this->name = $object->title;
$this->title = $object->title;
$this->description = $object->description;
$this->sound = $object->sound;
$this->type = $object->type;
if (empty($this->type)) {
$this->type = ONE_PER_PAGE;
}
$this->random = $object->random;
$this->random_answers = $object->random_answers;
$this->active = $object->active;
$this->results_disabled = $object->results_disabled;
$this->attempts = $object->max_attempt;
$this->feedback_type = $object->feedback_type;
$this->propagate_neg = $object->propagate_neg;
$this->randomByCat = $object->random_by_category;
$this->text_when_finished = $object->text_when_finished;
$this->display_category_name = $object->display_category_name;
$this->pass_percentage = $object->pass_percentage;
$this->sessionId = $object->session_id;
$this->is_gradebook_locked = api_resource_is_locked_by_gradebook($id, LINK_EXERCISE);
$this->review_answers = (isset($object->review_answers) && $object->review_answers == 1) ? true : false;
$sql = "SELECT lp_id, max_score
FROM $table_lp_item
WHERE c_id = {$this->course_id} AND
item_type = '".TOOL_QUIZ."' AND
path = '".$id."'";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
$this->exercise_was_added_in_lp = true;
$this->lpList = Database::store_result($result, 'ASSOC');
}
$this->force_edit_exercise_in_lp = isset($_configuration['force_edit_exercise_in_lp']) ? $_configuration['force_edit_exercise_in_lp'] : false;
if ($this->exercise_was_added_in_lp) {
$this->edit_exercise_in_lp = $this->force_edit_exercise_in_lp == true;
} else {
$this->edit_exercise_in_lp = true;
}
if ($object->end_time != '0000-00-00 00:00:00') {
$this->end_time = $object->end_time;
}
if ($object->start_time != '0000-00-00 00:00:00') {
$this->start_time = $object->start_time;
}
//control time
$this->expired_time = $object->expired_time;
//Checking if question_order is correctly set
$this->questionList = $this->selectQuestionList(true);
//overload questions list with recorded questions list
//load questions only for exercises of type 'one question per page'
//this is needed only is there is no questions
/*
// @todo not sure were in the code this is used somebody mess with the exercise tool
// @todo don't know who add that config and why $_configuration['live_exercise_tracking']
global $_configuration, $questionList;
if ($this->type == ONE_PER_PAGE && $_SERVER['REQUEST_METHOD'] != 'POST' && defined('QUESTION_LIST_ALREADY_LOGGED') &&
isset($_configuration['live_exercise_tracking']) && $_configuration['live_exercise_tracking']) {
$this->questionList = $questionList;
}*/
return true;
}
return false;
}
/**
* @return string
*/
public function getCutTitle()
{
return cut($this->exercise, EXERCISE_MAX_NAME_SIZE);
}
/**
* returns the exercise ID
*
* @author Olivier Brouckaert
* @return int - exercise ID
*/
public function selectId()
{
return $this->id;
}
/**
* returns the exercise title
*
* @author Olivier Brouckaert
* @return string - exercise title
*/
public function selectTitle()
{
return $this->exercise;
}
/**
* returns the number of attempts setted
*
* @return int - exercise attempts
*/
public function selectAttempts()
{
return $this->attempts;
}
/** returns the number of FeedbackType *
* 0=>Feedback , 1=>DirectFeedback, 2=>NoFeedback
* @return int - exercise attempts
*/
public function selectFeedbackType()
{
return $this->feedback_type;
}
/**
* returns the time limit
*/
public function selectTimeLimit()
{
return $this->timeLimit;
}
/**
* returns the exercise description
*
* @author Olivier Brouckaert
* @return string - exercise description
*/
public function selectDescription()
{
return $this->description;
}
/**
* returns the exercise sound file
*
* @author Olivier Brouckaert
* @return string - exercise description
*/
public function selectSound()
{
return $this->sound;
}
/**
* returns the exercise type
*
* @author Olivier Brouckaert
* @return integer - exercise type
*/
public function selectType()
{
return $this->type;
}
/**
* @author hubert borderiou 30-11-11
* @return integer : do we display the question category name for students
*/
public function selectDisplayCategoryName()
{
return $this->display_category_name;
}
/**
* @return int
*/
public function selectPassPercentage()
{
return $this->pass_percentage;
}
/**
*
* Modify object to update the switch display_category_name
* @author hubert borderiou 30-11-11
* @param int $in_txt is an integer 0 or 1
*/
public function updateDisplayCategoryName($in_txt)
{
$this->display_category_name = $in_txt;
}
/**
* @author hubert borderiou 28-11-11
* @return string html text : the text to display ay the end of the test.
*/
public function selectTextWhenFinished()
{
return $this->text_when_finished;
}
/**
* @author hubert borderiou 28-11-11
* @return string html text : update the text to display ay the end of the test.
*/
public function updateTextWhenFinished($in_txt)
{
$this->text_when_finished = $in_txt;
}
/**
* return 1 or 2 if randomByCat
* @author hubert borderiou
* @return integer - quiz random by category
*/
public function selectRandomByCat()
{
return $this->randomByCat;
}
/**
* return 0 if no random by cat
* return 1 if random by cat, categories shuffled
* return 2 if random by cat, categories sorted by alphabetic order
* @author hubert borderiou
* @return integer - quiz random by category
*/
public function isRandomByCat()
{
$res = 0;
if ($this->randomByCat == 1) {
$res = 1;
} else if ($this->randomByCat == 2) {
$res = 2;
}
return $res;
}
/**
* return nothing
* update randomByCat value for object
* @author hubert borderiou
*/
public function updateRandomByCat($in_randombycat)
{
if ($in_randombycat == 1) {
$this->randomByCat = 1;
} else if ($in_randombycat == 2) {
$this->randomByCat = 2;
} else {
$this->randomByCat = 0;
}
}
/**
* Tells if questions are selected randomly, and if so returns the draws
*
* @author Carlos Vargas
* @return integer - results disabled exercise
*/
public function selectResultsDisabled()
{
return $this->results_disabled;
}
/**
* tells if questions are selected randomly, and if so returns the draws
*
* @author Olivier Brouckaert
* @return integer - 0 if not random, otherwise the draws
*/
public function isRandom()
{
if($this->random > 0 || $this->random == -1) {
return true;
} else {
return false;
}
}
/**
* returns random answers status.
*
* @author Juan Carlos Rana
*/
public function selectRandomAnswers()
{
return $this->random_answers;
}
/**
* Same as isRandom() but has a name applied to values different than 0 or 1
*/
public function getShuffle()
{
return $this->random;
}
/**
* returns the exercise status (1 = enabled ; 0 = disabled)
*
* @author Olivier Brouckaert
* @return boolean - true if enabled, otherwise false
*/
public function selectStatus()
{
return $this->active;
}
/**
* returns the array with the question ID list
*
* @author Olivier Brouckaert
* @return array - question ID list
*/
public function selectQuestionList($from_db = false)
{
if ($from_db && !empty($this->id)) {
$TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
$TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
$sql = "SELECT DISTINCT e.question_order
FROM $TBL_EXERCICE_QUESTION e
INNER JOIN $TBL_QUESTIONS q
ON (e.question_id = q.id AND e.c_id = ".$this->course_id." AND q.c_id = ".$this->course_id.")
WHERE e.exercice_id = ".intval($this->id)."";
$result = Database::query($sql);
$count_question_orders = Database::num_rows($result);
$sql = "SELECT e.question_id, e.question_order
FROM $TBL_EXERCICE_QUESTION e
INNER JOIN $TBL_QUESTIONS q
ON (e.question_id= q.id AND e.c_id = ".$this->course_id." AND q.c_id = ".$this->course_id.")
WHERE e.exercice_id = ".intval($this->id)."
ORDER BY question_order";
$result = Database::query($sql);
// fills the array with the question ID for this exercise
// the key of the array is the question position
$temp_question_list = array();
$counter = 1;
$question_list = array();
while ($new_object = Database::fetch_object($result)) {
$question_list[$new_object->question_order]= $new_object->question_id;
$temp_question_list[$counter] = $new_object->question_id;
$counter++;
}
if (!empty($temp_question_list)) {
if (count($temp_question_list) != $count_question_orders) {
$question_list = $temp_question_list;
}
}
return $question_list;
}
return $this->questionList;
}
/**
* returns the number of questions in this exercise
*
* @author Olivier Brouckaert
* @return integer - number of questions
*/
public function selectNbrQuestions()
{
return sizeof($this->questionList);
}
/**
* @return int
*/
public function selectPropagateNeg()
{
return $this->propagate_neg;
}
/**
* Selects questions randomly in the question list
*
* @author Olivier Brouckaert
* @author Hubert Borderiou 15 nov 2011
* @return array - if the exercise is not set to take questions randomly, returns the question list
* without randomizing, otherwise, returns the list with questions selected randomly
*/
public function selectRandomList()
{
$nbQuestions = $this->selectNbrQuestions();
$temp_list = $this->questionList;
//Not a random exercise, or if there are not at least 2 questions
if($this->random == 0 || $nbQuestions < 2) {
return $this->questionList;
}
if ($nbQuestions != 0) {
shuffle($temp_list);
$my_random_list = array_combine(range(1,$nbQuestions),$temp_list);
$my_question_list = array();
// $this->random == -1 if random with all questions
if ($this->random > 0) {
$i = 0;
foreach ($my_random_list as $item) {
if ($i < $this->random) {
$my_question_list[$i] = $item;
} else {
break;
}
$i++;
}
} else {
$my_question_list = $my_random_list;
}
return $my_question_list;
}
}
/**
* returns 'true' if the question ID is in the question list
*
* @author Olivier Brouckaert
* @param integer $questionId - question ID
* @return boolean - true if in the list, otherwise false
*/
public function isInList($questionId)
{
if (is_array($this->questionList))
return in_array($questionId,$this->questionList);
else
return false;
}
/**
* changes the exercise title
*
* @author Olivier Brouckaert
* @param string $title - exercise title
*/
public function updateTitle($title)
{
$this->exercise=$title;
}
/**
* changes the exercise max attempts
*
* @param int $attempts - exercise max attempts
*/
public function updateAttempts($attempts)
{
$this->attempts=$attempts;
}
/**
* changes the exercise feedback type
*
* @param int $feedback_type
*/
public function updateFeedbackType($feedback_type)
{
$this->feedback_type=$feedback_type;
}
/**
* changes the exercise description
*
* @author Olivier Brouckaert
* @param string $description - exercise description
*/
public function updateDescription($description)
{
$this->description=$description;
}
/**
* changes the exercise expired_time
*
* @author Isaac flores
* @param int $expired_time The expired time of the quiz
*/
public function updateExpiredTime($expired_time)
{
$this->expired_time = $expired_time;
}
/**
* @param $value
*/
public function updatePropagateNegative($value)
{
$this->propagate_neg = $value;
}
/**
* @param $value
*/
public function updateReviewAnswers($value)
{
$this->review_answers = isset($value) && $value ? true : false;
}
/**
* @param $value
*/
public function updatePassPercentage($value)
{
$this->pass_percentage = $value;
}
/**
* changes the exercise sound file
*
* @author Olivier Brouckaert
* @param string $sound - exercise sound file
* @param string $delete - ask to delete the file
*/
public function updateSound($sound,$delete)
{
global $audioPath, $documentPath;
$TBL_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
if ($sound['size'] && (strstr($sound['type'],'audio') || strstr($sound['type'],'video'))) {
$this->sound=$sound['name'];
if (@move_uploaded_file($sound['tmp_name'],$audioPath.'/'.$this->sound)) {
$query = "SELECT 1 FROM $TBL_DOCUMENT
WHERE c_id = ".$this->course_id." AND path='".str_replace($documentPath,'',$audioPath).'/'.$this->sound."'";
$result=Database::query($query);
if (!Database::num_rows($result)) {
$id = add_document(
$this->course,
str_replace($documentPath,'',$audioPath).'/'.$this->sound,
'file',
$sound['size'],
$sound['name']
);
api_item_property_update(
$this->course,
TOOL_DOCUMENT,
$id,
'DocumentAdded',
api_get_user_id()
);
item_property_update_on_folder(
$this->course,
str_replace($documentPath, '', $audioPath),
api_get_user_id()
);
}
}
} elseif($delete && is_file($audioPath.'/'.$this->sound)) {
$this->sound='';
}
}
/**
* changes the exercise type
*
* @author Olivier Brouckaert
* @param integer $type - exercise type
*/
public function updateType($type)
{
$this->type=$type;
}
/**
* sets to 0 if questions are not selected randomly
* if questions are selected randomly, sets the draws
*
* @author Olivier Brouckaert
* @param integer $random - 0 if not random, otherwise the draws
*/
public function setRandom($random)
{
/*if ($random == 'all') {
$random = $this->selectNbrQuestions();
}*/
$this->random = $random;
}
/**
* sets to 0 if answers are not selected randomly
* if answers are selected randomly
* @author Juan Carlos Rana
* @param integer $random_answers - random answers
*/
public function updateRandomAnswers($random_answers)
{
$this->random_answers = $random_answers;
}
/**
* enables the exercise
*
* @author Olivier Brouckaert
*/
public function enable()
{
$this->active=1;
}
/**
* disables the exercise
*
* @author Olivier Brouckaert
*/
public function disable()
{
$this->active=0;
}
/**
* Set disable results
*/
public function disable_results()
{
$this->results_disabled = true;
}
/**
* Enable results
*/
public function enable_results()
{
$this->results_disabled = false;
}
/**
* @param int $results_disabled
*/
public function updateResultsDisabled($results_disabled)
{
$this->results_disabled = intval($results_disabled);
}
/**
* updates the exercise in the data base
*
* @author Olivier Brouckaert
*/
public function save($type_e = '')
{
$_course = $this->course;
$TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST);
$id = $this->id;
$exercise = $this->exercise;
$description = $this->description;
$sound = $this->sound;
$type = $this->type;
$attempts = isset($this->attempts) ? $this->attempts : 0;
$feedback_type = isset($this->feedback_type) ? $this->feedback_type : 0;
$random = $this->random;
$random_answers = $this->random_answers;
$active = $this->active;
$propagate_neg = $this->propagate_neg;
$review_answers = isset($this->review_answers) && $this->review_answers ? 1 : 0;
$randomByCat = $this->randomByCat;
$text_when_finished = $this->text_when_finished;
$display_category_name = intval($this->display_category_name);
$pass_percentage = intval($this->pass_percentage);
$session_id = $this->sessionId;
//If direct we do not show results
if ($feedback_type == EXERCISE_FEEDBACK_TYPE_DIRECT) {
$results_disabled = 0;
} else {
$results_disabled = intval($this->results_disabled);
}
$expired_time = intval($this->expired_time);
// Exercise already exists
if ($id) {
// we prepare date in the database using the api_get_utc_datetime() function
if (!empty($this->start_time) && $this->start_time != '0000-00-00 00:00:00') {
$start_time = Database::escape_string($this->start_time);
} else {
$start_time = '0000-00-00 00:00:00';
}
if (!empty($this->end_time) && $this->end_time != '0000-00-00 00:00:00') {
$end_time = Database::escape_string($this->end_time);
} else {
$end_time = '0000-00-00 00:00:00';
}
$sql = "UPDATE $TBL_EXERCICES SET
title='".Database::escape_string($exercise)."',
description='".Database::escape_string($description)."'";
if ($type_e != 'simple') {
$sql .= ",sound='".Database::escape_string($sound)."',
type = ".intval($type).",
random = ".intval($random).",
random_answers = ".intval($random_answers).",
active = ".intval($active).",
feedback_type = ".intval($feedback_type).",
start_time = '$start_time',
end_time = '$end_time',
max_attempt = ".intval($attempts).",
expired_time = ".intval($expired_time).",
propagate_neg = ".intval($propagate_neg).",
review_answers = ".intval($review_answers).",
random_by_category= ".intval($randomByCat).",
text_when_finished = '".Database::escape_string($text_when_finished)."',
display_category_name = ".intval($display_category_name).",
pass_percentage = ".intval($pass_percentage).",
results_disabled= ".intval($results_disabled)."";
}
$sql .= " WHERE c_id = ".$this->course_id." AND id = ".intval($id)."";
Database::query($sql);
// update into the item_property table
api_item_property_update(
$_course,
TOOL_QUIZ,
$id,
'QuizUpdated',
api_get_user_id()
);
if (api_get_setting('search_enabled')=='true') {
$this->search_engine_edit();
}
} else {
// Creates a new exercise
// In this case of new exercise, we don't do the api_get_utc_datetime()
// for date because, bellow, we call function api_set_default_visibility()
// In this function, api_set_default_visibility,
// the Quiz is saved too, with an $id and api_get_utc_datetime() is done.
// If we do it now, it will be done twice (cf. https://support.chamilo.org/issues/6586)
if (!empty($this->start_time) && $this->start_time != '0000-00-00 00:00:00') {
$start_time = Database::escape_string($this->start_time);
} else {
$start_time = '0000-00-00 00:00:00';
}
if (!empty($this->end_time) && $this->end_time != '0000-00-00 00:00:00') {
$end_time = Database::escape_string(($this->end_time));
} else {
$end_time = '0000-00-00 00:00:00';
}
$params = [
'c_id' => $this->course_id,
'start_time' => $start_time,
'end_time' => $end_time,
'title' => $exercise,
'description' => $description,
'sound' => $sound,
'type' => $type,
'random' => $random,
'random_answers' => $random_answers,
'active' => $active,
'results_disabled' => $results_disabled,
'max_attempt' => $attempts,
'feedback_type' => $feedback_type,
'expired_time' => $expired_time,
'session_id' => $session_id,
'review_answers' => $review_answers,
'random_by_category' => $randomByCat,
'text_when_finished' => $text_when_finished,
'display_category_name' => $display_category_name,
'pass_percentage' => $pass_percentage
];
$this->id = Database::insert($TBL_EXERCICES, $params);
if ($this->id) {
$sql = "UPDATE $TBL_EXERCICES SET id = iid WHERE iid = {$this->id} ";
Database::query($sql);
// insert into the item_property table
api_item_property_update(
$this->course,
TOOL_QUIZ,
$this->id,
'QuizAdded',
api_get_user_id()
);
// This function save the quiz again, carefull about start_time
// and end_time if you remove this line (see above)
api_set_default_visibility(
$this->id,
TOOL_QUIZ,
null,
$this->course
);
if (api_get_setting('search_enabled') == 'true' && extension_loaded('xapian')) {
$this->search_engine_save();
}
}
}
// Updates the question position
$this->update_question_positions();
}
/**
* Updates question position
*/
public function update_question_positions()
{
$quiz_question_table = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
//Fixes #3483 when updating order
$question_list = $this->selectQuestionList(true);
if (!empty($question_list)) {
foreach ($question_list as $position => $questionId) {
$sql = "UPDATE $quiz_question_table SET
question_order ='".intval($position)."'
WHERE
c_id = ".$this->course_id." AND
question_id = ".intval($questionId)." AND
exercice_id=".intval($this->id);
Database::query($sql);
}
}
}
/**
* Adds a question into the question list
*
* @author Olivier Brouckaert
* @param integer $questionId - question ID
* @return boolean - true if the question has been added, otherwise false
*/
public function addToList($questionId)
{
// checks if the question ID is not in the list
if (!$this->isInList($questionId)) {
// selects the max position
if (!$this->selectNbrQuestions()) {
$pos = 1;
} else {
if (is_array($this->questionList)) {
$pos = max(array_keys($this->questionList)) + 1;
}
}
$this->questionList[$pos] = $questionId;
return true;
}
return false;
}
/**
* removes a question from the question list
*
* @author Olivier Brouckaert
* @param integer $questionId - question ID
* @return boolean - true if the question has been removed, otherwise false
*/
public function removeFromList($questionId)
{
// searches the position of the question ID in the list
$pos = array_search($questionId,$this->questionList);
// question not found
if ($pos === false) {
return false;
} else {
// dont reduce the number of random question if we use random by category option, or if
// random all questions
if ($this->isRandom() && $this->isRandomByCat() == 0) {
if (count($this->questionList) >= $this->random && $this->random > 0) {
$this->random -= 1;
$this->save();
}
}
// deletes the position from the array containing the wanted question ID
unset($this->questionList[$pos]);
return true;
}
}
/**
* deletes the exercise from the database
* Notice : leaves the question in the data base
*
* @author Olivier Brouckaert
*/
public function delete()
{
$TBL_EXERCICES = Database::get_course_table(TABLE_QUIZ_TEST);
$sql = "UPDATE $TBL_EXERCICES SET active='-1'
WHERE c_id = ".$this->course_id." AND id = ".intval($this->id)."";
Database::query($sql);
api_item_property_update($this->course, TOOL_QUIZ, $this->id, 'QuizDeleted', api_get_user_id());
api_item_property_update($this->course, TOOL_QUIZ, $this->id, 'delete', api_get_user_id());
if (api_get_setting('search_enabled')=='true' && extension_loaded('xapian') ) {
$this->search_engine_delete();
}
}
/**
* Creates the form to create / edit an exercise
* @param FormValidator $form
*/
public function createForm($form, $type='full')
{
global $id;
if (empty($type)){
$type='full';
}
// form title
if (!empty($_GET['exerciseId'])) {
$form_title = get_lang('ModifyExercise');
} else {
$form_title = get_lang('NewEx');
}
$form->addElement('header', $form_title);
// Title.
$form->addElement('text', 'exerciseTitle', get_lang('ExerciseName'), array('class' => 'span6','id'=>'exercise_title'));
$form->addElement('advanced_settings', 'advanced_params', get_lang('AdvancedParameters'));
$form->addElement('html', '<div id="advanced_params_options" style="display:none">');
$editor_config = array('ToolbarSet' => 'TestQuestionDescription', 'Width' => '100%', 'Height' => '150');
if (is_array($type)){
$editor_config = array_merge($editor_config, $type);
}
$form->addHtmlEditor('exerciseDescription', get_lang('ExerciseDescription'), false, false, $editor_config);
if ($type == 'full') {
//Can't modify a DirectFeedback question
if ($this->selectFeedbackType() != EXERCISE_FEEDBACK_TYPE_DIRECT ) {
// feedback type
$radios_feedback = array();
$radios_feedback[] = $form->createElement('radio', 'exerciseFeedbackType', null, get_lang('ExerciseAtTheEndOfTheTest'),'0',array('id' =>'exerciseType_0', 'onclick' => 'check_feedback()'));
if (api_get_setting('enable_quiz_scenario') == 'true') {
//Can't convert a question from one feedback to another if there is more than 1 question already added
if ($this->selectNbrQuestions() == 0) {
$radios_feedback[] = $form->createElement('radio', 'exerciseFeedbackType', null, get_lang('DirectFeedback'),'1',array('id' =>'exerciseType_1' , 'onclick' => 'check_direct_feedback()'));
}
}
$radios_feedback[] = $form->createElement('radio', 'exerciseFeedbackType', null, get_lang('NoFeedback'),'2',array('id' =>'exerciseType_2'));
$form->addGroup($radios_feedback, null, array(get_lang('FeedbackType'),get_lang('FeedbackDisplayOptions')), '');
// Type of results display on the final page
$radios_results_disabled = array();
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('ShowScoreAndRightAnswer'), '0', array('id'=>'result_disabled_0'));
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('DoNotShowScoreNorRightAnswer'), '1',array('id'=>'result_disabled_1','onclick' => 'check_results_disabled()'));
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('OnlyShowScore'), '2', array('id'=>'result_disabled_2'));
//$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('ExamModeWithFinalScoreShowOnlyFinalScoreWithCategoriesIfAvailable'), '3', array('id'=>'result_disabled_3','onclick' => 'check_results_disabled()'));
$form->addGroup($radios_results_disabled, null, get_lang('ShowResultsToStudents'), '');
// Type of questions disposition on page
$radios = array();
$radios[] = $form->createElement('radio', 'exerciseType', null, get_lang('SimpleExercise'), '1', array('onclick' => 'check_per_page_all()', 'id'=>'option_page_all'));
$radios[] = $form->createElement('radio', 'exerciseType', null, get_lang('SequentialExercise'),'2', array('onclick' => 'check_per_page_one()', 'id'=>'option_page_one'));
$form->addGroup($radios, null, get_lang('QuestionsPerPage'), '');
} else {
// if is Directfeedback but has not questions we can allow to modify the question type
if ($this->selectNbrQuestions() == 0) {
// feedback type
$radios_feedback = array();
$radios_feedback[] = $form->createElement('radio', 'exerciseFeedbackType', null, get_lang('ExerciseAtTheEndOfTheTest'),'0',array('id' =>'exerciseType_0', 'onclick' => 'check_feedback()'));
if (api_get_setting('enable_quiz_scenario') == 'true') {
$radios_feedback[] = $form->createElement('radio', 'exerciseFeedbackType', null, get_lang('DirectFeedback'), '1', array('id' =>'exerciseType_1' , 'onclick' => 'check_direct_feedback()'));
}
$radios_feedback[] = $form->createElement('radio', 'exerciseFeedbackType', null, get_lang('NoFeedback'),'2',array('id' =>'exerciseType_2'));
$form->addGroup($radios_feedback, null, array(get_lang('FeedbackType'),get_lang('FeedbackDisplayOptions')));
//$form->addElement('select', 'exerciseFeedbackType',get_lang('FeedbackType'),$feedback_option,'onchange="javascript:feedbackselection()"');
$radios_results_disabled = array();
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('ShowScoreAndRightAnswer'), '0', array('id'=>'result_disabled_0'));
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('DoNotShowScoreNorRightAnswer'), '1',array('id'=>'result_disabled_1','onclick' => 'check_results_disabled()'));
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('OnlyShowScore'), '2',array('id'=>'result_disabled_2','onclick' => 'check_results_disabled()'));
$form->addGroup($radios_results_disabled, null, get_lang('ShowResultsToStudents'),'');
// Type of questions disposition on page
$radios = array();
$radios[] = $form->createElement('radio', 'exerciseType', null, get_lang('SimpleExercise'), '1');
$radios[] = $form->createElement('radio', 'exerciseType', null, get_lang('SequentialExercise'),'2');
$form->addGroup($radios, null, get_lang('ExerciseType'));
} else {
//Show options freeze
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('ShowScoreAndRightAnswer'), '0', array('id'=>'result_disabled_0'));
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('DoNotShowScoreNorRightAnswer'), '1',array('id'=>'result_disabled_1','onclick' => 'check_results_disabled()'));
$radios_results_disabled[] = $form->createElement('radio', 'results_disabled', null, get_lang('OnlyShowScore'), '2',array('id'=>'result_disabled_2','onclick' => 'check_results_disabled()'));
$result_disable_group = $form->addGroup($radios_results_disabled, null, get_lang('ShowResultsToStudents'),'');
$result_disable_group->freeze();
//we force the options to the DirectFeedback exercisetype
$form->addElement('hidden', 'exerciseFeedbackType', EXERCISE_FEEDBACK_TYPE_DIRECT);
$form->addElement('hidden', 'exerciseType', ONE_PER_PAGE);
// Type of questions disposition on page
$radios[] = $form->createElement('radio', 'exerciseType', null, get_lang('SimpleExercise'), '1', array('onclick' => 'check_per_page_all()', 'id'=>'option_page_all'));
$radios[] = $form->createElement('radio', 'exerciseType', null, get_lang('SequentialExercise'),'2', array('onclick' => 'check_per_page_one()', 'id'=>'option_page_one'));
$type_group = $form->addGroup($radios, null, get_lang('QuestionsPerPage'), '');
$type_group->freeze();
}
}
// number of random question
$max = ($this->id > 0) ? $this->selectNbrQuestions() : 10 ;
$option = range(0,$max);
$option[0] = get_lang('No');
$option[-1] = get_lang('AllQuestionsShort');
$form->addElement('select', 'randomQuestions',array(get_lang('RandomQuestions'), get_lang('RandomQuestionsHelp')), $option, array('id'=>'randomQuestions','class'=>'chzn-select'));
//random answers
$radios_random_answers = array();
$radios_random_answers[] = $form->createElement('radio', 'randomAnswers', null, get_lang('Yes'),'1');
$radios_random_answers[] = $form->createElement('radio', 'randomAnswers', null, get_lang('No'),'0');
$form->addGroup($radios_random_answers, null, get_lang('RandomAnswers'), '');
//randow by category
$form->addElement('html','<div class="clear">&nbsp;</div>');
$radiocat = array();
$radiocat[] = $form->createElement('radio', 'randomByCat', null, get_lang('YesWithCategoriesShuffled'),'1');
$radiocat[] = $form->createElement('radio', 'randomByCat', null, get_lang('YesWithCategoriesSorted'),'2');
$radiocat[] = $form->createElement('radio', 'randomByCat', null, get_lang('No'),'0');
$radioCatGroup = $form->addGroup($radiocat, null, get_lang('RandomQuestionByCategory'), '');
$form->addElement('html','<div class="clear">&nbsp;</div>');
// add the radio display the category name for student
$radio_display_cat_name = array();
$radio_display_cat_name[] = $form->createElement('radio', 'display_category_name', null, get_lang('Yes'),'1');
$radio_display_cat_name[] = $form->createElement('radio', 'display_category_name', null, get_lang('No'),'0');
$form->addGroup($radio_display_cat_name, null, get_lang('QuestionDisplayCategoryName'), '');
//Attempts
$attempt_option=range(0,10);
$attempt_option[0]=get_lang('Infinite');
$form->addElement('select', 'exerciseAttempts',get_lang('ExerciseAttempts'),$attempt_option, array('id'=>'exerciseAttempts','class'=>'chzn-select'));
// Exercice time limit
$form->addElement('checkbox', 'activate_start_date_check',null, get_lang('EnableStartTime'), array('onclick' => 'activate_start_date()'));
$var = Exercise::selectTimeLimit();
if (($this->start_time != '0000-00-00 00:00:00'))
$form->addElement('html','<div id="start_date_div" style="display:block;">');
else
$form->addElement('html','<div id="start_date_div" style="display:none;">');
$form->addElement('date_time_picker', 'start_time');
$form->addElement('html','</div>');
$form->addElement('checkbox', 'activate_end_date_check', null , get_lang('EnableEndTime'), array('onclick' => 'activate_end_date()'));
if (($this->end_time != '0000-00-00 00:00:00'))
$form->addElement('html','<div id="end_date_div" style="display:block;">');
else
$form->addElement('html','<div id="end_date_div" style="display:none;">');
$form->addElement('date_time_picker', 'end_time');
$form->addElement('html','</div>');
//$check_option=$this->selectType();
$diplay = 'block';
$form->addElement('checkbox', 'propagate_neg', null, get_lang('PropagateNegativeResults'));
$form->addElement('html','<div class="clear">&nbsp;</div>');
$form->addElement('checkbox', 'review_answers', null, get_lang('ReviewAnswers'));
$form->addElement('html','<div id="divtimecontrol" style="display:'.$diplay.';">');
//Timer control
//$time_hours_option = range(0,12);
//$time_minutes_option = range(0,59);
$form->addElement('checkbox', 'enabletimercontrol', null, get_lang('EnableTimerControl'), array('onclick' =>'option_time_expired()','id'=>'enabletimercontrol','onload'=>'check_load_time()'));
$expired_date = (int)$this->selectExpiredTime();
if (($expired_date!='0')) {
$form->addElement('html','<div id="timercontrol" style="display:block;">');
} else {
$form->addElement('html','<div id="timercontrol" style="display:none;">');
}
$form->addElement('text', 'enabletimercontroltotalminutes',get_lang('ExerciseTotalDurationInMinutes'),array('style' => 'width : 35px','id' => 'enabletimercontroltotalminutes'));
$form->addElement('html','</div>');
$form->addElement('text', 'pass_percentage', array(get_lang('PassPercentage'), null, '%'), array('id' => 'pass_percentage'));
$form->addRule('pass_percentage', get_lang('Numeric'), 'numeric');
// add the text_when_finished textbox
$form -> addHtmlEditor('text_when_finished', get_lang('TextWhenFinished'), false, false, $editor_config);
$defaults = array();
if (api_get_setting('search_enabled') === 'true') {
require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
$form->addElement ('checkbox', 'index_document','', get_lang('SearchFeatureDoIndexDocument'));
$form->addElement ('select_language', 'language', get_lang('SearchFeatureDocumentLanguage'));
$specific_fields = get_specific_field_list();
foreach ($specific_fields as $specific_field) {
$form->addElement ('text', $specific_field['code'], $specific_field['name']);
$filter = array('c_id'=> "'". api_get_course_int_id() ."'", 'field_id' => $specific_field['id'], 'ref_id' => $this->id, 'tool_id' => '\''. TOOL_QUIZ .'\'');
$values = get_specific_field_values_list($filter, array('value'));
if ( !empty($values) ) {
$arr_str_values = array();
foreach ($values as $value) {
$arr_str_values[] = $value['value'];
}
$defaults[$specific_field['code']] = implode(', ', $arr_str_values);
}
}
//$form->addElement ('html','</div>');
}
$form->addElement('html','</div>'); //End advanced setting
$form->addElement('html','</div>');
}
// submit
if (isset($_GET['exerciseId'])) {
$form->addButtonSave(get_lang('ModifyExercise'), 'submitExercise');
} else {
$form->addButtonUpdate(get_lang('ProcedToQuestions'), 'submitExercise');
}
$form->addRule('exerciseTitle', get_lang('GiveExerciseName'), 'required');
if ($type == 'full') {
// rules
$form->addRule('exerciseAttempts', get_lang('Numeric'), 'numeric');
$form->addRule('start_time', get_lang('InvalidDate'), 'datetime');
$form->addRule('end_time', get_lang('InvalidDate'), 'datetime');
}
// defaults
if ($type=='full') {
if ($this->id > 0) {
if ($this->random > $this->selectNbrQuestions()) {
$defaults['randomQuestions'] = $this->selectNbrQuestions();
} else {
$defaults['randomQuestions'] = $this->random;
}
$defaults['randomAnswers'] = $this->selectRandomAnswers();
$defaults['exerciseType'] = $this->selectType();
$defaults['exerciseTitle'] = $this->get_formated_title();
$defaults['exerciseDescription'] = $this->selectDescription();
$defaults['exerciseAttempts'] = $this->selectAttempts();
$defaults['exerciseFeedbackType'] = $this->selectFeedbackType();
$defaults['results_disabled'] = $this->selectResultsDisabled();
$defaults['propagate_neg'] = $this->selectPropagateNeg();
$defaults['review_answers'] = $this->review_answers;
$defaults['randomByCat'] = $this->selectRandomByCat(); //
$defaults['text_when_finished'] = $this->selectTextWhenFinished(); //
$defaults['display_category_name'] = $this->selectDisplayCategoryName(); //
$defaults['pass_percentage'] = $this->selectPassPercentage();
if (($this->start_time != '0000-00-00 00:00:00'))
$defaults['activate_start_date_check'] = 1;
if ($this->end_time != '0000-00-00 00:00:00')
$defaults['activate_end_date_check'] = 1;
$defaults['start_time'] = ($this->start_time!='0000-00-00 00:00:00') ? api_get_local_time($this->start_time) : date('Y-m-d 12:00:00');
$defaults['end_time'] = ($this->end_time!='0000-00-00 00:00:00') ? api_get_local_time($this->end_time) : date('Y-m-d 12:00:00', time()+84600);
//Get expired time
if($this->expired_time != '0') {
$defaults['enabletimercontrol'] = 1;
$defaults['enabletimercontroltotalminutes'] = $this->expired_time;
} else {
$defaults['enabletimercontroltotalminutes'] = 0;
}
} else {
$defaults['exerciseType'] = 2;
$defaults['exerciseAttempts'] = 0;
$defaults['randomQuestions'] = 0;
$defaults['randomAnswers'] = 0;
$defaults['exerciseDescription'] = '';
$defaults['exerciseFeedbackType'] = 0;
$defaults['results_disabled'] = 0;
$defaults['randomByCat'] = 0; //
$defaults['text_when_finished'] = ""; //
$defaults['start_time'] = date('Y-m-d 12:00:00');
$defaults['display_category_name'] = 1; //
$defaults['end_time'] = date('Y-m-d 12:00:00',time()+84600);
$defaults['pass_percentage'] = '';
}
} else {
$defaults['exerciseTitle'] = $this->selectTitle();
$defaults['exerciseDescription'] = $this->selectDescription();
}
if (api_get_setting('search_enabled') === 'true') {
$defaults['index_document'] = 'checked="checked"';
}
$form->setDefaults($defaults);
// Freeze some elements.
if ($this->id != 0 && $this->edit_exercise_in_lp == false) {
$elementsToFreeze = array(
'randomQuestions',
//'randomByCat',
'exerciseAttempts',
'propagate_neg',
'enabletimercontrol',
'review_answers'
);
foreach ($elementsToFreeze as $elementName) {
/** @var HTML_QuickForm_element $element */
$element = $form->getElement($elementName);
$element->freeze();
}
$radioCatGroup->freeze();
//$form->freeze();
}
}
/**
* function which process the creation of exercises
* @param FormValidator $form
* @param string
*/
function processCreation($form, $type = '')
{
$this->updateTitle(Exercise::format_title_variable($form->getSubmitValue('exerciseTitle')));
$this->updateDescription($form->getSubmitValue('exerciseDescription'));
$this->updateAttempts($form->getSubmitValue('exerciseAttempts'));
$this->updateFeedbackType($form->getSubmitValue('exerciseFeedbackType'));
$this->updateType($form->getSubmitValue('exerciseType'));
$this->setRandom($form->getSubmitValue('randomQuestions'));
$this->updateRandomAnswers($form->getSubmitValue('randomAnswers'));
$this->updateResultsDisabled($form->getSubmitValue('results_disabled'));
$this->updateExpiredTime($form->getSubmitValue('enabletimercontroltotalminutes'));
$this->updatePropagateNegative($form->getSubmitValue('propagate_neg'));
$this->updateRandomByCat($form->getSubmitValue('randomByCat'));
$this->updateTextWhenFinished($form->getSubmitValue('text_when_finished'));
$this->updateDisplayCategoryName($form->getSubmitValue('display_category_name'));
$this->updateReviewAnswers($form->getSubmitValue('review_answers'));
$this->updatePassPercentage($form->getSubmitValue('pass_percentage'));
if ($form->getSubmitValue('activate_start_date_check') == 1) {
$start_time = $form->getSubmitValue('start_time');
$this->start_time = api_get_utc_datetime($start_time);
} else {
$this->start_time = '0000-00-00 00:00:00';
}
if ($form->getSubmitValue('activate_end_date_check') == 1) {
$end_time = $form->getSubmitValue('end_time');
$this->end_time = api_get_utc_datetime($end_time);
} else {
$this->end_time = '0000-00-00 00:00:00';
}
if ($form->getSubmitValue('enabletimercontrol') == 1) {
$expired_total_time = $form->getSubmitValue('enabletimercontroltotalminutes');
if ($this->expired_time == 0) {
$this->expired_time = $expired_total_time;
}
} else {
$this->expired_time = 0;
}
if ($form->getSubmitValue('randomAnswers') == 1) {
$this->random_answers=1;
} else {
$this->random_answers=0;
}
$this->save($type);
}
function search_engine_save()
{
if ($_POST['index_document'] != 1) {
return;
}
$course_id = api_get_course_id();
require_once api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php';
require_once api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php';
require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
$specific_fields = get_specific_field_list();
$ic_slide = new IndexableChunk();
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
if (isset($_REQUEST[$specific_field['code']])) {
$sterms = trim($_REQUEST[$specific_field['code']]);
if (!empty($sterms)) {
$all_specific_terms .= ' '. $sterms;
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$ic_slide->addTerm(trim($sterm), $specific_field['code']);
add_specific_field_value($specific_field['id'], $course_id, TOOL_QUIZ, $this->id, $sterm);
}
}
}
}
// build the chunk to index
$ic_slide->addValue("title", $this->exercise);
$ic_slide->addCourseId($course_id);
$ic_slide->addToolId(TOOL_QUIZ);
$xapian_data = array(
SE_COURSE_ID => $course_id,
SE_TOOL_ID => TOOL_QUIZ,
SE_DATA => array('type' => SE_DOCTYPE_EXERCISE_EXERCISE, 'exercise_id' => (int)$this->id),
SE_USER => (int)api_get_user_id(),
);
$ic_slide->xapian_data = serialize($xapian_data);
$exercise_description = $all_specific_terms .' '. $this->description;
$ic_slide->addValue("content", $exercise_description);
$di = new ChamiloIndexer();
isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
$di->connectDb(NULL, NULL, $lang);
$di->addChunk($ic_slide);
//index and return search engine document id
$did = $di->index();
if ($did) {
// save it to db
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id, $did);
Database::query($sql);
}
}
function search_engine_edit()
{
// update search enchine and its values table if enabled
if (api_get_setting('search_enabled')=='true' && extension_loaded('xapian')) {
$course_id = api_get_course_id();
// actually, it consists on delete terms from db, insert new ones, create a new search engine document, and remove the old one
// get search_did
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
require_once(api_get_path(LIBRARY_PATH) . 'search/ChamiloIndexer.class.php');
require_once(api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php');
require_once(api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php');
$se_ref = Database::fetch_array($res);
$specific_fields = get_specific_field_list();
$ic_slide = new IndexableChunk();
$all_specific_terms = '';
foreach ($specific_fields as $specific_field) {
delete_all_specific_field_value($course_id, $specific_field['id'], TOOL_QUIZ, $this->id);
if (isset($_REQUEST[$specific_field['code']])) {
$sterms = trim($_REQUEST[$specific_field['code']]);
$all_specific_terms .= ' '. $sterms;
$sterms = explode(',', $sterms);
foreach ($sterms as $sterm) {
$ic_slide->addTerm(trim($sterm), $specific_field['code']);
add_specific_field_value($specific_field['id'], $course_id, TOOL_QUIZ, $this->id, $sterm);
}
}
}
// build the chunk to index
$ic_slide->addValue("title", $this->exercise);
$ic_slide->addCourseId($course_id);
$ic_slide->addToolId(TOOL_QUIZ);
$xapian_data = array(
SE_COURSE_ID => $course_id,
SE_TOOL_ID => TOOL_QUIZ,
SE_DATA => array('type' => SE_DOCTYPE_EXERCISE_EXERCISE, 'exercise_id' => (int)$this->id),
SE_USER => (int)api_get_user_id(),
);
$ic_slide->xapian_data = serialize($xapian_data);
$exercise_description = $all_specific_terms .' '. $this->description;
$ic_slide->addValue("content", $exercise_description);
$di = new ChamiloIndexer();
isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
$di->connectDb(NULL, NULL, $lang);
$di->remove_document((int)$se_ref['search_did']);
$di->addChunk($ic_slide);
//index and return search engine document id
$did = $di->index();
if ($did) {
// save it to db
$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=\'%s\'';
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
Database::query($sql);
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id, $did);
Database::query($sql);
}
} else {
$this->search_engine_save();
}
}
}
function search_engine_delete()
{
// remove from search engine if enabled
if (api_get_setting('search_enabled') == 'true' && extension_loaded('xapian') ) {
$course_id = api_get_course_id();
$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level IS NULL LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
$row = Database::fetch_array($res);
require_once(api_get_path(LIBRARY_PATH) .'search/ChamiloIndexer.class.php');
$di = new ChamiloIndexer();
$di->remove_document((int)$row['search_did']);
unset($di);
$tbl_quiz_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
foreach ( $this->questionList as $question_i) {
$sql = 'SELECT type FROM %s WHERE id=%s';
$sql = sprintf($sql, $tbl_quiz_question, $question_i);
$qres = Database::query($sql);
if (Database::num_rows($qres) > 0) {
$qrow = Database::fetch_array($qres);
$objQuestion = Question::getInstance($qrow['type']);
$objQuestion = Question::read((int)$question_i);
$objQuestion->search_engine_edit($this->id, FALSE, TRUE);
unset($objQuestion);
}
}
}
$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level IS NULL LIMIT 1';
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
Database::query($sql);
// remove terms from db
require_once api_get_path(LIBRARY_PATH) .'specific_fields_manager.lib.php';
delete_all_values_for_item($course_id, TOOL_QUIZ, $this->id);
}
}
function selectExpiredTime()
{
return $this->expired_time;
}
/**
* Cleans the student's results only for the Exercise tool (Not from the LP)
* The LP results are NOT deleted by default, otherwise put $cleanLpTests = true
* Works with exercises in sessions
* @param bool $cleanLpTests
* @param string $cleanResultBeforeDate
*
* @return int quantity of user's exercises deleted
*/
public function clean_results($cleanLpTests = false, $cleanResultBeforeDate = null)
{
$table_track_e_exercises = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$table_track_e_attempt = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$sql_where = ' AND
orig_lp_id = 0 AND
orig_lp_item_id = 0';
// if we want to delete results from LP too
if ($cleanLpTests) {
$sql_where = "";
}
// if we want to delete attempts before date $cleanResultBeforeDate
// $cleanResultBeforeDate must be a valid UTC-0 date yyyy-mm-dd
if (!empty($cleanResultBeforeDate)) {
$cleanResultBeforeDate = Database::escape_string($cleanResultBeforeDate);
if (api_is_valid_date($cleanResultBeforeDate)) {
$sql_where .= " AND exe_date <= '$cleanResultBeforeDate' ";
} else {
return 0;
}
}
$sql = "SELECT exe_id
FROM $table_track_e_exercises
WHERE
c_id = ".api_get_course_int_id()." AND
exe_exo_id = ".$this->id." AND
session_id = ".api_get_session_id()." ".
$sql_where;
$result = Database::query($sql);
$exe_list = Database::store_result($result);
// deleting TRACK_E_ATTEMPT table
// check if exe in learning path or not
$i = 0;
if (is_array($exe_list) && count($exe_list) > 0) {
foreach ($exe_list as $item) {
$sql = "DELETE FROM $table_track_e_attempt WHERE exe_id = '".$item['exe_id']."'";
Database::query($sql);
$i++;
}
}
$session_id = api_get_session_id();
// delete TRACK_E_EXERCISES table
$sql = "DELETE FROM $table_track_e_exercises
WHERE c_id = ".api_get_course_int_id()."
AND exe_exo_id = ".$this->id."
$sql_where
AND session_id = ".$session_id."";
Database::query($sql);
Event::addEvent(
LOG_EXERCISE_RESULT_DELETE,
LOG_EXERCISE_ID,
$this->id,
null,
null,
api_get_course_int_id(),
$session_id
);
return $i;
}
/**
* Copies an exercise (duplicate all questions and answers)
*/
public function copy_exercise()
{
$exercise_obj= new Exercise();
$exercise_obj = $this;
// force the creation of a new exercise
$exercise_obj->updateTitle($exercise_obj->selectTitle().' - '.get_lang('Copy'));
//Hides the new exercise
$exercise_obj->updateStatus(false);
$exercise_obj->updateId(0);
$exercise_obj->save();
$new_exercise_id = $exercise_obj->selectId();
$question_list = $exercise_obj->selectQuestionList();
if (!empty($question_list)) {
//Question creation
foreach ($question_list as $old_question_id) {
$old_question_obj = Question::read($old_question_id);
$new_id = $old_question_obj->duplicate();
if ($new_id) {
$new_question_obj = Question::read($new_id);
if (isset($new_question_obj) && $new_question_obj) {
$new_question_obj->addToList($new_exercise_id);
// This should be moved to the duplicate function
$new_answer_obj = new Answer($old_question_id);
$new_answer_obj->read();
$new_answer_obj->duplicate($new_id);
}
}
}
}
}
/**
* Changes the exercise id
*
* @param int $id - exercise id
*/
private function updateId($id)
{
$this->id = $id;
}
/**
* Changes the exercise status
*
* @param string $status - exercise status
*/
function updateStatus($status)
{
$this->active = $status;
}
/**
* @param int $lp_id
* @param int $lp_item_id
* @param int $lp_item_view_id
* @param string $status
* @return array
*/
public function get_stat_track_exercise_info(
$lp_id = 0,
$lp_item_id = 0,
$lp_item_view_id = 0,
$status = 'incomplete'
) {
$track_exercises = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
if (empty($lp_id)) {
$lp_id = 0;
}
if (empty($lp_item_id)) {
$lp_item_id = 0;
}
if (empty($lp_item_view_id)) {
$lp_item_view_id = 0;
}
$condition = ' WHERE exe_exo_id = ' . "'" . $this->id . "'" .' AND
exe_user_id = ' . "'" . api_get_user_id() . "'" . ' AND
c_id = ' . api_get_course_int_id() . ' AND
status = ' . "'" . Database::escape_string($status). "'" . ' AND
orig_lp_id = ' . "'" . $lp_id . "'" . ' AND
orig_lp_item_id = ' . "'" . $lp_item_id . "'" . ' AND
orig_lp_item_view_id = ' . "'" . $lp_item_view_id . "'" . ' AND
session_id = ' . "'" . api_get_session_id() . "' LIMIT 1"; //Adding limit 1 just in case
$sql_track = 'SELECT * FROM '.$track_exercises.$condition;
$result = Database::query($sql_track);
$new_array = array();
if (Database::num_rows($result) > 0 ) {
$new_array = Database::fetch_array($result, 'ASSOC');
$new_array['num_exe'] = Database::num_rows($result);
}
return $new_array;
}
/**
* Saves a test attempt
*
* @param int clock_expired_time
* @param int int lp id
* @param int int lp item id
* @param int int lp item_view id
* @param float $weight
* @param array question list
*/
public function save_stat_track_exercise_info(
$clock_expired_time = 0,
$safe_lp_id = 0,
$safe_lp_item_id = 0,
$safe_lp_item_view_id = 0,
$questionList = array(),
$weight = 0
) {
$track_exercises = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$safe_lp_id = intval($safe_lp_id);
$safe_lp_item_id = intval($safe_lp_item_id);
$safe_lp_item_view_id = intval($safe_lp_item_view_id);
if (empty($safe_lp_id)) {
$safe_lp_id = 0;
}
if (empty($safe_lp_item_id)) {
$safe_lp_item_id = 0;
}
if (empty($clock_expired_time)) {
$clock_expired_time = 0;
}
$questionList = array_map('intval', $questionList);
$params = array(
'exe_exo_id' => $this->id ,
'exe_user_id' => api_get_user_id(),
'c_id' => api_get_course_int_id(),
'status' => 'incomplete',
'session_id' => api_get_session_id(),
'data_tracking' => implode(',', $questionList) ,
'start_date' => api_get_utc_datetime(),
'orig_lp_id' => $safe_lp_id,
'orig_lp_item_id' => $safe_lp_item_id,
'orig_lp_item_view_id' => $safe_lp_item_view_id,
'exe_weighting'=> $weight,
'user_ip' => api_get_real_ip()
);
if ($this->expired_time != 0) {
$params['expired_time_control'] = $clock_expired_time;
}
$id = Database::insert($track_exercises, $params);
return $id;
}
/**
* @param int $question_id
* @param int $questionNum
* @param array $questions_in_media
* @param string $currentAnswer
* @return string
*/
public function show_button($question_id, $questionNum, $questions_in_media = array(), $currentAnswer = '')
{
global $origin, $safe_lp_id, $safe_lp_item_id, $safe_lp_item_view_id;
$nbrQuestions = $this->get_count_question_list();
$all_button = $html = $label = '';
$hotspot_get = isset($_POST['hotspot']) ? Security::remove_XSS($_POST['hotspot']):null;
if ($this->selectFeedbackType() == EXERCISE_FEEDBACK_TYPE_DIRECT && $this->type == ONE_PER_PAGE) {
$html .='<a
href="exercise_submit_modal.php?learnpath_id='.$safe_lp_id.'&learnpath_item_id='.$safe_lp_item_id.'&learnpath_item_view_id='.$safe_lp_item_view_id.'&origin='.$origin.'&hotspot='.$hotspot_get.'&nbrQuestions='.$nbrQuestions.'&num='.$questionNum.'&exerciseType='.$this->type.'&exerciseId='.$this->id.'&height=480&width=640&modal=true"
title=""
class="ajax btn btn-default">';
if ($questionNum == count($this->questionList)) {
$html .= get_lang('EndTest').'</a>';
} else {
$html .= get_lang('ContinueTest').'</a>';
}
$html .='<br />';
} else {
// User
if (api_is_allowed_to_session_edit()) {
if ($this->type == ALL_ON_ONE_PAGE || $nbrQuestions == $questionNum) {
if ($this->review_answers) {
$label = get_lang('ReviewQuestions');
$class = 'btn btn-success';
} else {
$label = get_lang('EndTest');
$class = 'btn btn-warning';
}
} else {
$label = get_lang('NextQuestion');
$class = 'btn btn-primary';
}
$class .= ' question-validate-btn'; // used to select it with jquery
if ($this->type == ONE_PER_PAGE) {
if ($questionNum != 1) {
$prev_question = $questionNum - 2;
$all_button .= '<a href="javascript://" class="btn btn-default" onclick="previous_question_and_save('.$prev_question.', '.$question_id.' ); ">'.get_lang('PreviousQuestion').'</a>';
}
//Next question
if (!empty($questions_in_media)) {
$questions_in_media = "['".implode("','",$questions_in_media)."']";
$all_button .= '&nbsp;<a href="javascript://" class="'.$class.'" onclick="save_question_list('.$questions_in_media.'); ">'.$label.'</a>';
} else {
$all_button .= '&nbsp;<a href="javascript://" class="'.$class.'" onclick="save_now('.$question_id.', \'\', \''.$currentAnswer.'\'); ">'.$label.'</a>';
}
$all_button .= '<span id="save_for_now_'.$question_id.'" class="exercise_save_mini_message"></span>&nbsp;';
$html .= $all_button;
} else {
if ($this->review_answers) {
$all_label = get_lang('ReviewQuestions');
$class = 'btn btn-success';
} else {
$all_label = get_lang('EndTest');
$class = 'btn btn-warning';
}
$class .= ' question-validate-btn'; // used to select it with jquery
$all_button = '&nbsp;<a href="javascript://" class="'.$class.'" onclick="validate_all(); ">'.$all_label.'</a>';
$all_button .= '&nbsp;<span id="save_all_reponse"></span>';
$html .= $all_button;
}
}
}
return $html;
}
/**
* So the time control will work
*/
public function show_time_control_js($time_left)
{
$time_left = intval($time_left);
return "<script>
function get_expired_date_string(expired_time) {
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
var day, month, year, hours, minutes, seconds, date_string;
var obj_date = new Date(expired_time);
day = obj_date.getDate();
if (day < 10) day = '0' + day;
month = obj_date.getMonth();
year = obj_date.getFullYear();
hours = obj_date.getHours();
if (hours < 10) hours = '0' + hours;
minutes = obj_date.getMinutes();
if (minutes < 10) minutes = '0' + minutes;
seconds = obj_date.getSeconds();
if (seconds < 10) seconds = '0' + seconds;
date_string = months[month] +' ' + day + ', ' + year + ' ' + hours + ':' + minutes + ':' + seconds;
return date_string;
}
function open_clock_warning() {
$('#clock_warning').dialog({
modal:true,
height:250,
closeOnEscape: false,
resizable: false,
buttons: {
'".addslashes(get_lang("EndTest"))."': function() {
$('#clock_warning').dialog('close');
}
},
close: function() {
send_form();
}
});
$('#clock_warning').dialog('open');
$('#counter_to_redirect').epiclock({
mode: $.epiclock.modes.countdown,
offset: {seconds: 5},
format: 's'
}).bind('timer', function () {
send_form();
});
}
function send_form() {
if ($('#exercise_form').length) {
$('#exercise_form').submit();
} else {
//In reminder
final_submit();
}
}
function onExpiredTimeExercise() {
$('#wrapper-clock').hide();
$('#exercise_form').hide();
$('#expired-message-id').show();
//Fixes bug #5263
$('#num_current_id').attr('value', '".$this->selectNbrQuestions()."');
open_clock_warning();
}
$(document).ready(function() {
var current_time = new Date().getTime();
var time_left = parseInt(".$time_left."); // time in seconds when using minutes there are some seconds lost
var expired_time = current_time + (time_left*1000);
var expired_date = get_expired_date_string(expired_time);
$('#exercise_clock_warning').epiclock({
mode: $.epiclock.modes.countdown,
offset: {seconds: time_left},
format: 'x:i:s',
renderer: 'minute'
}).bind('timer', function () {
onExpiredTimeExercise();
});
$('#submit_save').click(function () {});
});
</script>";
}
/**
* Lp javascript for hotspots
*/
public function show_lp_javascript()
{
return "<script type=\"text/javascript\" src=\"../plugin/hotspot/JavaScriptFlashGateway.js\"></script>
<script src=\"../plugin/hotspot/hotspot.js\" type=\"text/javascript\"></script>
<script language=\"JavaScript\" type=\"text/javascript\">
<!--
// -----------------------------------------------------------------------------
// Globals
// Major version of Flash required
var requiredMajorVersion = 7;
// Minor version of Flash required
var requiredMinorVersion = 0;
// Minor version of Flash required
var requiredRevision = 0;
// the version of javascript supported
var jsVersion = 1.0;
// -----------------------------------------------------------------------------
// -->
</script>
<script language=\"VBScript\" type=\"text/vbscript\">
<!-- // Visual basic helper required to detect Flash Player ActiveX control version information
Function VBGetSwfVer(i)
on error resume next
Dim swControl, swVersion
swVersion = 0
set swControl = CreateObject(\"ShockwaveFlash.ShockwaveFlash.\" + CStr(i))
if (IsObject(swControl)) then
swVersion = swControl.GetVariable(\"\$version\")
end if
VBGetSwfVer = swVersion
End Function
// -->
</script>
<script language=\"JavaScript1.1\" type=\"text/javascript\">
<!-- // Detect Client Browser type
var isIE = (navigator.appVersion.indexOf(\"MSIE\") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf(\"win\") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf(\"Opera\") != -1) ? true : false;
jsVersion = 1.1;
// JavaScript helper required to detect Flash Player PlugIn version information
function JSGetSwfVer(i){
// NS/Opera version >= 3 check for Flash plugin in plugin array
if (navigator.plugins != null && navigator.plugins.length > 0) {
if (navigator.plugins[\"Shockwave Flash 2.0\"] || navigator.plugins[\"Shockwave Flash\"]) {
var swVer2 = navigator.plugins[\"Shockwave Flash 2.0\"] ? \" 2.0\" : \"\";
var flashDescription = navigator.plugins[\"Shockwave Flash\" + swVer2].description;
descArray = flashDescription.split(\" \");
tempArrayMajor = descArray[2].split(\".\");
versionMajor = tempArrayMajor[0];
versionMinor = tempArrayMajor[1];
if ( descArray[3] != \"\" ) {
tempArrayMinor = descArray[3].split(\"r\");
} else {
tempArrayMinor = descArray[4].split(\"r\");
}
versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
flashVer = versionMajor + \".\" + versionMinor + \".\" + versionRevision;
} else {
flashVer = -1;
}
}
// MSN/WebTV 2.6 supports Flash 4
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.6\") != -1) flashVer = 4;
// WebTV 2.5 supports Flash 3
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.5\") != -1) flashVer = 3;
// older WebTV supports Flash 2
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv\") != -1) flashVer = 2;
// Can't detect in all other cases
else {
flashVer = -1;
}
return flashVer;
}
// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
reqVer = parseFloat(reqMajorVer + \".\" + reqRevision);
// loop backwards through the versions until we find the newest version
for (i=25;i>0;i--) {
if (isIE && isWin && !isOpera) {
versionStr = VBGetSwfVer(i);
} else {
versionStr = JSGetSwfVer(i);
}
if (versionStr == -1 ) {
return false;
} else if (versionStr != 0) {
if(isIE && isWin && !isOpera) {
tempArray = versionStr.split(\" \");
tempString = tempArray[1];
versionArray = tempString .split(\",\");
} else {
versionArray = versionStr.split(\".\");
}
versionMajor = versionArray[0];
versionMinor = versionArray[1];
versionRevision = versionArray[2];
versionString = versionMajor + \".\" + versionRevision; // 7.0r24 == 7.24
versionNum = parseFloat(versionString);
// is the major.revision >= requested major.revision AND the minor version >= requested minor
if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
return true;
} else {
return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );
}
}
}
}
// -->
</script>";
}
/**
* This function was originally found in the exercise_show.php
* @param int $exeId
* @param int $questionId
* @param int $choice the user selected
* @param string $from function is called from 'exercise_show' or 'exercise_result'
* @param array $exerciseResultCoordinates the hotspot coordinates $hotspot[$question_id] = coordinates
* @param bool $saved_results save results in the DB or just show the reponse
* @param bool $from_database gets information from DB or from the current selection
* @param bool $show_result show results or not
* @param int $propagate_neg
* @param array $hotspot_delineation_result
*
* @todo reduce parameters of this function
* @return string html code
*/
public function manage_answer(
$exeId,
$questionId,
$choice,
$from = 'exercise_show',
$exerciseResultCoordinates = array(),
$saved_results = true,
$from_database = false,
$show_result = true,
$propagate_neg = 0,
$hotspot_delineation_result = array()
) {
global $debug;
//needed in order to use in the exercise_attempt() for the time
global $learnpath_id, $learnpath_item_id;
require_once api_get_path(LIBRARY_PATH).'geometry.lib.php';
$feedback_type = $this->selectFeedbackType();
$results_disabled = $this->selectResultsDisabled();
if ($debug) {
error_log("<------ manage_answer ------> ");
error_log('exe_id: '.$exeId);
error_log('$from: '.$from);
error_log('$saved_results: '.intval($saved_results));
error_log('$from_database: '.intval($from_database));
error_log('$show_result: '.$show_result);
error_log('$propagate_neg: '.$propagate_neg);
error_log('$exerciseResultCoordinates: '.print_r($exerciseResultCoordinates, 1));
error_log('$hotspot_delineation_result: '.print_r($hotspot_delineation_result, 1));
error_log('$learnpath_id: '.$learnpath_id);
error_log('$learnpath_item_id: '.$learnpath_item_id);
error_log('$choice: '.print_r($choice, 1));
}
$extra_data = array();
$final_overlap = 0;
$final_missing = 0;
$final_excess = 0;
$overlap_color = 0;
$missing_color = 0;
$excess_color = 0;
$threadhold1 = 0;
$threadhold2 = 0;
$threadhold3 = 0;
$arrques = null;
$arrans = null;
$questionId = intval($questionId);
$exeId = intval($exeId);
$TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$table_ans = Database::get_course_table(TABLE_QUIZ_ANSWER);
// Creates a temporary Question object
$course_id = api_get_course_int_id();
$objQuestionTmp = Question::read($questionId, $course_id);
if ($objQuestionTmp === false) {
return false;
}
$questionName = $objQuestionTmp->selectTitle();
$questionWeighting = $objQuestionTmp->selectWeighting();
$answerType = $objQuestionTmp->selectType();
$quesId = $objQuestionTmp->selectId();
$extra = $objQuestionTmp->extra;
$next = 1; //not for now
// Extra information of the question
if (!empty($extra)) {
$extra = explode(':', $extra);
if ($debug) {
error_log(print_r($extra, 1));
}
// Fixes problems with negatives values using intval
$true_score = floatval(trim($extra[0]));
$false_score = floatval(trim($extra[1]));
$doubt_score = floatval(trim($extra[2]));
}
$totalWeighting = 0;
$totalScore = 0;
// Destruction of the Question object
unset($objQuestionTmp);
// Construction of the Answer object
$objAnswerTmp = new Answer($questionId);
$nbrAnswers = $objAnswerTmp->selectNbrAnswers();
if ($debug) {
error_log('Count of answers: '.$nbrAnswers);
error_log('$answerType: '.$answerType);
}
if ($answerType == FREE_ANSWER || $answerType == ORAL_EXPRESSION || $answerType == CALCULATED_ANSWER) {
$nbrAnswers = 1;
}
$nano = null;
if ($answerType == ORAL_EXPRESSION) {
$exe_info = Event::get_exercise_results_by_attempt($exeId);
$exe_info = isset($exe_info[$exeId]) ? $exe_info[$exeId] : null;
$params = array();
$params['course_id'] = api_get_course_int_id();
$params['session_id'] = api_get_session_id();
$params['user_id'] = isset($exe_info['exe_user_id'])? $exe_info['exe_user_id'] : api_get_user_id();
$params['exercise_id'] = isset($exe_info['exe_exo_id'])? $exe_info['exe_exo_id'] : $this->id;
$params['question_id'] = $questionId;
$params['exe_id'] = isset($exe_info['exe_id']) ? $exe_info['exe_id'] : $exeId;
$nano = new Nanogong($params);
//probably this attempt came in an exercise all question by page
if ($feedback_type == 0) {
$nano->replace_with_real_exe($exeId);
}
}
$user_answer = '';
// Get answer list for matching
$sql_answer = 'SELECT id_auto, id, answer FROM '.$table_ans.'
WHERE c_id = '.$course_id.' AND question_id = "'.$questionId.'"';
$res_answer = Database::query($sql_answer);
$answerMatching = array();
while ($real_answer = Database::fetch_array($res_answer)) {
$answerMatching[$real_answer['id_auto']] = $real_answer['answer'];
}
$real_answers = array();
$quiz_question_options = Question::readQuestionOption($questionId, $course_id);
$organs_at_risk_hit = 0;
$questionScore = 0;
if ($debug) error_log('Start answer loop ');
$answer_correct_array = array();
for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
$answer = $objAnswerTmp->selectAnswer($answerId);
$answerComment = $objAnswerTmp->selectComment($answerId);
$answerCorrect = $objAnswerTmp->isCorrect($answerId);
$answerWeighting = (float)$objAnswerTmp->selectWeighting($answerId);
$answerAutoId = $objAnswerTmp->selectAutoId($answerId);
$answer_correct_array[$answerId] = (bool)$answerCorrect;
if ($debug) {
error_log("answer auto id: $answerAutoId ");
error_log("answer correct: $answerCorrect ");
}
// Delineation
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates(1);
$answer_delineation_destination=$objAnswerTmp->selectDestination(1);
switch ($answerType) {
// for unique answer
case UNIQUE_ANSWER:
case UNIQUE_ANSWER_IMAGE:
case UNIQUE_ANSWER_NO_OPTION:
if ($from_database) {
$sql = "SELECT answer FROM $TBL_TRACK_ATTEMPT
WHERE
exe_id = '".$exeId."' AND
question_id= '".$questionId."'";
$result = Database::query($sql);
$choice = Database::result($result,0,"answer");
$studentChoice = $choice == $answerAutoId ? 1 : 0;
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
} else {
$studentChoice = $choice == $answerAutoId ? 1 : 0;
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
break;
// for multiple answers
case MULTIPLE_ANSWER_TRUE_FALSE:
if ($from_database) {
$choice = array();
$sql = "SELECT answer FROM $TBL_TRACK_ATTEMPT
WHERE
exe_id = $exeId AND
question_id = ".$questionId;
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$ind = $row['answer'];
$values = explode(':', $ind);
$my_answer_id = $values[0];
$option = $values[1];
$choice[$my_answer_id] = $option;
}
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if (!empty($studentChoice)) {
if ($studentChoice == $answerCorrect) {
$questionScore += $true_score;
} else {
if ($quiz_question_options[$studentChoice]['name'] != "Don't know") {
$questionScore += $false_score;
} else {
$questionScore += $doubt_score;
}
}
} else {
// If no result then the user just hit don't know
$studentChoice = 3;
$questionScore += $doubt_score;
}
$totalScore = $questionScore;
break;
case MULTIPLE_ANSWER: //2
if ($from_database) {
$choice = array();
$queryans = "SELECT answer FROM ".$TBL_TRACK_ATTEMPT."
WHERE exe_id = '".$exeId."' AND question_id= '".$questionId."'";
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
$real_answers[$answerId] = (bool)$studentChoice;
if ($studentChoice) {
$questionScore +=$answerWeighting;
}
} else {
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
$real_answers[$answerId] = (bool)$studentChoice;
if (isset($studentChoice)) {
$questionScore += $answerWeighting;
}
}
$totalScore += $answerWeighting;
if ($debug) error_log("studentChoice: $studentChoice");
break;
case GLOBAL_MULTIPLE_ANSWER:
if ($from_database) {
$choice = array();
$sql = "SELECT answer FROM $TBL_TRACK_ATTEMPT
WHERE exe_id = '".$exeId."' AND question_id= '".$questionId."'";
$resultans = Database::query($sql);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
$real_answers[$answerId] = (bool)$studentChoice;
if ($studentChoice) {
$questionScore +=$answerWeighting;
}
} else {
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if (isset($studentChoice)) {
$questionScore += $answerWeighting;
}
$real_answers[$answerId] = (bool)$studentChoice;
}
$totalScore += $answerWeighting;
if ($debug) error_log("studentChoice: $studentChoice");
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
if ($from_database) {
$queryans = "SELECT answer FROM ".$TBL_TRACK_ATTEMPT."
WHERE exe_id = ".$exeId." AND question_id= ".$questionId;
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$result = explode(':',$ind);
$my_answer_id = $result[0];
$option = $result[1];
$choice[$my_answer_id] = $option;
}
$studentChoice = $choice[$answerAutoId];
if ($answerCorrect == $studentChoice) {
//$answerCorrect = 1;
$real_answers[$answerId] = true;
} else {
//$answerCorrect = 0;
$real_answers[$answerId] = false;
}
} else {
$studentChoice = $choice[$answerAutoId];
if ($answerCorrect == $studentChoice) {
//$answerCorrect = 1;
$real_answers[$answerId] = true;
} else {
//$answerCorrect = 0;
$real_answers[$answerId] = false;
}
}
break;
case MULTIPLE_ANSWER_COMBINATION:
if ($from_database) {
$queryans = "SELECT answer FROM ".$TBL_TRACK_ATTEMPT."
WHERE exe_id = '".$exeId."' and question_id= '".$questionId."'";
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if ($answerCorrect == 1) {
if ($studentChoice) {
$real_answers[$answerId] = true;
} else {
$real_answers[$answerId] = false;
}
} else {
if ($studentChoice) {
$real_answers[$answerId] = false;
} else {
$real_answers[$answerId] = true;
}
}
} else {
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if ($answerCorrect == 1) {
if ($studentChoice) {
$real_answers[$answerId] = true;
} else {
$real_answers[$answerId] = false;
}
} else {
if ($studentChoice) {
$real_answers[$answerId] = false;
} else {
$real_answers[$answerId] = true;
}
}
}
break;
// for fill in the blanks
case FILL_IN_BLANKS:
// the question is encoded like this
// [A] B [C] D [E] F::10,10,10@1
// number 1 before the "@" means that is a switchable fill in blank question
// [A] B [C] D [E] F::10,10,10@ or [A] B [C] D [E] F::10,10,10
// means that is a normal fill blank question
// first we explode the "::"
$pre_array = explode('::', $answer);
// is switchable fill blank or not
$last = count($pre_array) - 1;
$is_set_switchable = explode('@', $pre_array[$last]);
$switchable_answer_set = false;
if (isset ($is_set_switchable[1]) && $is_set_switchable[1] == 1) {
$switchable_answer_set = true;
}
$answer = '';
for ($k = 0; $k < $last; $k++) {
$answer .= $pre_array[$k];
}
// splits weightings that are joined with a comma
$answerWeighting = explode(',', $is_set_switchable[0]);
// we save the answer because it will be modified
$temp = $answer;
$answer = '';
$j = 0;
//initialise answer tags
$user_tags = $correct_tags = $real_text = array();
// the loop will stop at the end of the text
while (1) {
// quits the loop if there are no more blanks (detect '[')
if (($pos = api_strpos($temp, '[')) === false) {
// adds the end of the text
$answer = $temp;
$real_text[] = $answer;
break; //no more "blanks", quit the loop
}
// adds the piece of text that is before the blank
//and ends with '[' into a general storage array
$real_text[] = api_substr($temp, 0, $pos +1);
$answer .= api_substr($temp, 0, $pos +1);
//take the string remaining (after the last "[" we found)
$temp = api_substr($temp, $pos +1);
// quit the loop if there are no more blanks, and update $pos to the position of next ']'
if (($pos = api_strpos($temp, ']')) === false) {
// adds the end of the text
$answer .= $temp;
break;
}
if ($from_database) {
$queryfill = "SELECT answer FROM ".$TBL_TRACK_ATTEMPT."
WHERE
exe_id = '".$exeId."' AND
question_id= ".intval($questionId)."";
$resfill = Database::query($queryfill);
$str = Database::result($resfill, 0, 'answer');
api_preg_match_all('#\[([^[]*)\]#', $str, $arr);
$str = str_replace('\r\n', '', $str);
$choice = $arr[1];
if (isset($choice[$j])) {
$tmp = api_strrpos($choice[$j], ' / ');
$choice[$j] = api_substr($choice[$j], 0, $tmp);
$choice[$j] = trim($choice[$j]);
// Needed to let characters ' and " to work as part of an answer
$choice[$j] = stripslashes($choice[$j]);
} else {
$choice[$j] = null;
}
} else {
// This value is the user input, not escaped while correct answer is escaped by fckeditor
$choice[$j] = api_htmlentities(trim($choice[$j]));
}
$user_tags[] = $choice[$j];
//put the contents of the [] answer tag into correct_tags[]
$correct_tags[] = api_substr($temp, 0, $pos);
$j++;
$temp = api_substr($temp, $pos +1);
}
$answer = '';
$real_correct_tags = $correct_tags;
$chosen_list = array();
for ($i = 0; $i < count($real_correct_tags); $i++) {
if ($i == 0) {
$answer .= $real_text[0];
}
if (!$switchable_answer_set) {
// Needed to parse ' and " characters
$user_tags[$i] = stripslashes($user_tags[$i]);
if ($correct_tags[$i] == $user_tags[$i]) {
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $correct_tags[$i];
} elseif (!empty($user_tags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= ''; // remove &nbsp; that causes issue
}
} else {
// switchable fill in the blanks
if (in_array($user_tags[$i], $correct_tags)) {
$chosen_list[] = $user_tags[$i];
$correct_tags = array_diff($correct_tags, $chosen_list);
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $user_tags[$i];
} elseif (!empty ($user_tags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= ''; // remove &nbsp; that causes issue
}
}
// adds the correct word, followed by ] to close the blank
$answer .= ' / <font color="green"><b>' . $real_correct_tags[$i] . '</b></font>]';
if (isset($real_text[$i +1])) {
$answer .= $real_text[$i +1];
}
}
break;
// for calculated answer
case CALCULATED_ANSWER:
$answer = $objAnswerTmp->selectAnswer($_SESSION['calculatedAnswerId'][$questionId]);
$preArray = explode('@@', $answer);
$last = count($preArray) - 1;
$answer = '';
for ($k = 0; $k < $last; $k++) {
$answer .= $preArray[$k];
}
$answerWeighting = array($answerWeighting);
// we save the answer because it will be modified
$temp = $answer;
$answer = '';
$j = 0;
//initialise answer tags
$userTags = $correctTags = $realText = array();
// the loop will stop at the end of the text
while (1) {
// quits the loop if there are no more blanks (detect '[')
if (($pos = api_strpos($temp, '[')) === false) {
// adds the end of the text
$answer = $temp;
$realText[] = $answer;
break; //no more "blanks", quit the loop
}
// adds the piece of text that is before the blank
//and ends with '[' into a general storage array
$realText[] = api_substr($temp, 0, $pos +1);
$answer .= api_substr($temp, 0, $pos +1);
//take the string remaining (after the last "[" we found)
$temp = api_substr($temp, $pos +1);
// quit the loop if there are no more blanks, and update $pos to the position of next ']'
if (($pos = api_strpos($temp, ']')) === false) {
// adds the end of the text
$answer .= $temp;
break;
}
if ($from_database) {
$queryfill = "SELECT answer FROM ".$TBL_TRACK_ATTEMPT."
WHERE
exe_id = '".$exeId."' AND
question_id= ".intval($questionId)."";
$resfill = Database::query($queryfill);
$str = Database::result($resfill, 0, 'answer');
api_preg_match_all('#\[([^[]*)\]#', $str, $arr);
$str = str_replace('\r\n', '', $str);
$choice = $arr[1];
if (isset($choice[$j])) {
$tmp = api_strrpos($choice[$j], ' / ');
$choice[$j] = api_substr($choice[$j], 0, $tmp);
$choice[$j] = trim($choice[$j]);
// Needed to let characters ' and " to work as part of an answer
$choice[$j] = stripslashes($choice[$j]);
} else {
$choice[$j] = null;
}
} else {
// This value is the user input, not escaped while correct answer is escaped by fckeditor
$choice[$j] = api_htmlentities(trim($choice[$j]));
}
$userTags[] = $choice[$j];
//put the contents of the [] answer tag into correct_tags[]
$correctTags[] = api_substr($temp, 0, $pos);
$j++;
$temp = api_substr($temp, $pos +1);
}
$answer = '';
$realCorrectTags = $correctTags;
for ($i = 0; $i < count($realCorrectTags); $i++) {
if ($i == 0) {
$answer .= $realText[0];
}
// Needed to parse ' and " characters
$userTags[$i] = stripslashes($userTags[$i]);
if ($correctTags[$i] == $userTags[$i]) {
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $correctTags[$i];
} elseif (!empty($userTags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $userTags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= ''; // remove &nbsp; that causes issue
}
// adds the correct word, followed by ] to close the blank
$answer .= ' / <font color="green"><b>' . $realCorrectTags[$i] . '</b></font>]';
if (isset($realText[$i +1])) {
$answer .= $realText[$i +1];
}
}
break;
// for free answer
case FREE_ANSWER:
if ($from_database) {
$query = "SELECT answer, marks FROM ".$TBL_TRACK_ATTEMPT."
WHERE exe_id = '".$exeId."' AND question_id= '".$questionId."'";
$resq = Database::query($query);
$data = Database::fetch_array($resq);
$choice = $data['answer'];
$choice = str_replace('\r\n', '', $choice);
$choice = stripslashes($choice);
$questionScore = $data['marks'];
if ($questionScore == -1) {
$totalScore+= 0;
} else {
$totalScore+= $questionScore;
}
if ($questionScore == '') {
$questionScore = 0;
}
$arrques = $questionName;
$arrans = $choice;
} else {
$studentChoice = $choice;
if ($studentChoice) {
//Fixing negative puntation see #2193
$questionScore = 0;
$totalScore += 0;
}
}
break;
case ORAL_EXPRESSION:
if ($from_database) {
$query = "SELECT answer, marks FROM ".$TBL_TRACK_ATTEMPT."
WHERE exe_id = '".$exeId."' AND question_id= '".$questionId."'";
$resq = Database::query($query);
$choice = Database::result($resq,0,'answer');
$choice = str_replace('\r\n', '', $choice);
$choice = stripslashes($choice);
$questionScore = Database::result($resq,0,"marks");
if ($questionScore==-1) {
$totalScore+=0;
} else {
$totalScore+=$questionScore;
}
$arrques = $questionName;
$arrans = $choice;
} else {
$studentChoice = $choice;
if ($studentChoice) {
//Fixing negative puntation see #2193
$questionScore = 0;
$totalScore += 0;
}
}
break;
case MATCHING:
if ($from_database) {
$sql = 'SELECT id, answer, id_auto
FROM '.$table_ans.'
WHERE
c_id = '.$course_id.' AND
question_id = "'.$questionId.'" AND
correct = 0';
$res_answer = Database::query($sql);
// Getting the real answer
$real_list = array();
while ($real_answer = Database::fetch_array($res_answer)) {
$real_list[$real_answer['id_auto']] = $real_answer['answer'];
}
$sql = 'SELECT id, answer, correct, id_auto, ponderation
FROM '.$table_ans.'
WHERE
c_id = '.$course_id.' AND
question_id="'.$questionId.'" AND
correct <> 0
ORDER BY id_auto';
$res_answers = Database::query($sql);
$questionScore = 0;
while ($a_answers = Database::fetch_array($res_answers)) {
$i_answer_id = $a_answers['id']; //3
$s_answer_label = $a_answers['answer']; // your daddy - your mother
$i_answer_correct_answer = $a_answers['correct']; //1 - 2
$i_answer_id_auto = $a_answers['id_auto']; // 3 - 4
$sql = "SELECT answer FROM $TBL_TRACK_ATTEMPT
WHERE
exe_id = '$exeId' AND
question_id = '$questionId' AND
position = '$i_answer_id_auto'";
$res_user_answer = Database::query($sql);
if (Database::num_rows($res_user_answer) > 0) {
$s_user_answer = Database::result($res_user_answer, 0, 0); // rich - good looking
} else {
$s_user_answer = 0;
}
$i_answerWeighting = $a_answers['ponderation'];
$user_answer = '';
if (!empty($s_user_answer)) {
if ($s_user_answer == $i_answer_correct_answer) {
$questionScore += $i_answerWeighting;
$totalScore += $i_answerWeighting;
if (isset($real_list[$i_answer_id])) {
$user_answer = '<span>'.$real_list[$i_answer_id].'</span>';
}
} else {
$user_answer = '<span style="color: #FF0000; text-decoration: line-through;">'.$real_list[$s_user_answer].'</span>';
}
}
if ($show_result) {
echo '<tr>';
echo '<td>'.$s_answer_label.'</td>';
echo '<td>'.$user_answer;
if (isset($real_list[$i_answer_correct_answer])) {
echo ' <b><span style="color: #008000;">'.$real_list[$i_answer_correct_answer].'</span></b> ';
}
echo '</td>';
echo '</tr>';
}
}
break(2); // break the switch and the "for" condition
} else {
if ($answerCorrect) {
if ($answerCorrect == $choice[$answerAutoId]) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$user_answer = '<span>'.$answerMatching[$choice[$answerAutoId]].'</span>';
} else {
if (isset($answerMatching[$choice[$answerAutoId]])) {
$user_answer = '<span style="color: #FF0000; text-decoration: line-through;">'.$answerMatching[$choice[$answerAutoId]].'</span>';
}
}
$matching[$answerAutoId] = $choice[$answerAutoId];
}
break;
}
case HOT_SPOT :
if ($from_database) {
$TBL_TRACK_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$sql = "SELECT hotspot_correct
FROM $TBL_TRACK_HOTSPOT
WHERE
hotspot_exe_id = '".$exeId."' AND
hotspot_question_id= '".$questionId."' AND
hotspot_answer_id = ".intval($answerId)."";
$result = Database::query($sql);
$studentChoice = Database::result($result, 0, "hotspot_correct");
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
} else {
$studentChoice = $choice[$answerId];
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
break;
// @todo never added to chamilo
//for hotspot with fixed order
case HOT_SPOT_ORDER :
$studentChoice = $choice['order'][$answerId];
if ($studentChoice == $answerId) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$studentChoice = true;
} else {
$studentChoice = false;
}
break;
// for hotspot with delineation
case HOT_SPOT_DELINEATION :
if ($from_database) {
// getting the user answer
$TBL_TRACK_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$query = "SELECT hotspot_correct, hotspot_coordinate
FROM $TBL_TRACK_HOTSPOT
WHERE
hotspot_exe_id = '".$exeId."' AND
hotspot_question_id= '".$questionId."' AND
hotspot_answer_id='1'";
//by default we take 1 because it's a delineation
$resq = Database::query($query);
$row = Database::fetch_array($resq,'ASSOC');
$choice = $row['hotspot_correct'];
$user_answer = $row['hotspot_coordinate'];
// THIS is very important otherwise the poly_compile will throw an error!!
// round-up the coordinates
$coords = explode('/',$user_answer);
$user_array = '';
foreach ($coords as $coord) {
list($x,$y) = explode(';',$coord);
$user_array .= round($x).';'.round($y).'/';
}
$user_array = substr($user_array,0,-1);
} else {
if ($studentChoice) {
$newquestionList[]=$questionId;
}
if ($answerId===1) {
$studentChoice =$choice[$answerId];
$questionScore +=$answerWeighting;
if ($hotspot_delineation_result[1]==1) {
$totalScore +=$answerWeighting; //adding the total
}
}
}
$_SESSION['hotspot_coord'][1] = $delineation_cord;
$_SESSION['hotspot_dest'][1] = $answer_delineation_destination;
break;
} // end switch Answertype
global $origin;
if ($show_result) {
if ($debug) error_log('show result '.$show_result);
if ($from == 'exercise_result') {
if ($debug) error_log('Showing questions $from '.$from);
//display answers (if not matching type, or if the answer is correct)
if ($answerType != MATCHING || $answerCorrect) {
if (
in_array(
$answerType,
array(
UNIQUE_ANSWER,
UNIQUE_ANSWER_IMAGE,
UNIQUE_ANSWER_NO_OPTION,
MULTIPLE_ANSWER,
MULTIPLE_ANSWER_COMBINATION,
GLOBAL_MULTIPLE_ANSWER
)
)
) {
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_unique_or_multiple_answer(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
0,
0,
0,
$results_disabled
);
//}
} elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
//if ($origin!='learnpath') {
ExerciseShowFunctions::display_multiple_answer_true_false(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
0,
$questionId,
0,
$results_disabled
);
//}
} elseif ($answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE ) {
// if ($origin!='learnpath') {
ExerciseShowFunctions::display_multiple_answer_combination_true_false(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
0,
0,
0,
$results_disabled
);
//}
} elseif ($answerType == FILL_IN_BLANKS) {
//if ($origin!='learnpath') {
ExerciseShowFunctions::display_fill_in_blanks_answer($feedback_type, $answer,0,0);
// }
} elseif ($answerType == CALCULATED_ANSWER) {
//if ($origin!='learnpath') {
ExerciseShowFunctions::display_calculated_answer($feedback_type, $answer,0,0);
// }
} elseif ($answerType == FREE_ANSWER) {
//if($origin != 'learnpath') {
ExerciseShowFunctions::display_free_answer(
$feedback_type,
$choice,
$exeId,
$questionId,
$questionScore
);
//}
} elseif ($answerType == ORAL_EXPRESSION) {
// to store the details of open questions in an array to be used in mail
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_oral_expression_answer(
$feedback_type,
$choice,
0,
0,
$nano);
//}
} elseif ($answerType == HOT_SPOT) {
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_hotspot_answer(
$feedback_type,
$answerId,
$answer,
$studentChoice,
$answerComment,
$results_disabled
);
// }
} elseif ($answerType == HOT_SPOT_ORDER) {
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_hotspot_order_answer(
$feedback_type,
$answerId,
$answer,
$studentChoice,
$answerComment
);
//}
} elseif ($answerType == HOT_SPOT_DELINEATION) {
$user_answer = $_SESSION['exerciseResultCoordinates'][$questionId];
//round-up the coordinates
$coords = explode('/',$user_answer);
$user_array = '';
foreach ($coords as $coord) {
list($x,$y) = explode(';',$coord);
$user_array .= round($x).';'.round($y).'/';
}
$user_array = substr($user_array,0,-1);
if ($next) {
$user_answer = $user_array;
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
//calculating the area
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
//$overlap = round(polygons_overlap($poly_answer,$poly_user));
// //this is an area in pixels
if ($debug > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
} else {
// the final overlap is the percentage of the initial polygon
// that is overlapped by the user's polygon
$final_overlap = round(((float) $overlap / (float) $poly_answer_area) * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final overlap is ' . $final_overlap, 0);
}
// the final missing area is the percentage of the initial polygon
// that is not overlapped by the user's polygon
$final_missing = 100 - $final_overlap;
if ($debug > 1) {
error_log(__LINE__ . ' - Final missing is ' . $final_missing, 0);
}
// the final excess area is the percentage of the initial polygon's size
// that is covered by the user's polygon outside of the initial polygon
$final_excess = round((((float) $poly_user_area - (float) $overlap) / (float) $poly_answer_area) * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final excess is ' . $final_excess, 0);
}
}
//checking the destination parameters parsing the "@@"
$destination_items= explode('@@', $answerDestination);
$threadhold_total = $destination_items[0];
$threadhold_items=explode(';',$threadhold_total);
$threadhold1 = $threadhold_items[0]; // overlap
$threadhold2 = $threadhold_items[1]; // excess
$threadhold3 = $threadhold_items[2]; //missing
// if is delineation
if ($answerId===1) {
//setting colors
if ($final_overlap>=$threadhold1) {
$overlap_color=true; //echo 'a';
}
//echo $excess.'-'.$threadhold2;
if ($final_excess<=$threadhold2) {
$excess_color=true; //echo 'b';
}
//echo '--------'.$missing.'-'.$threadhold3;
if ($final_missing<=$threadhold3) {
$missing_color=true; //echo 'c';
}
// if pass
if (
$final_overlap >= $threadhold1 &&
$final_missing <= $threadhold3 &&
$final_excess <= $threadhold2
) {
$next=1; //go to the oars
$result_comment=get_lang('Acceptable');
$final_answer = 1; // do not update with update_exercise_attempt
} else {
$next=0;
$result_comment=get_lang('Unacceptable');
$comment=$answerDestination=$objAnswerTmp->selectComment(1);
$answerDestination=$objAnswerTmp->selectDestination(1);
//checking the destination parameters parsing the "@@"
$destination_items= explode('@@', $answerDestination);
}
} elseif($answerId>1) {
if ($objAnswerTmp->selectHotspotType($answerId) == 'noerror') {
if ($debug>0) {
error_log(__LINE__.' - answerId is of type noerror',0);
}
//type no error shouldn't be treated
$next = 1;
continue;
}
if ($debug>0) {
error_log(__LINE__.' - answerId is >1 so we\'re probably in OAR',0);
}
//check the intersection between the oar and the user
//echo 'user'; print_r($x_user_list); print_r($y_user_list);
//echo 'official';print_r($x_list);print_r($y_list);
//$result = get_intersection_data($x_list,$y_list,$x_user_list,$y_user_list);
$inter= $result['success'];
//$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$poly_answer = convert_coordinates($delineation_cord,'|');
$max_coord = poly_get_max($poly_user,$poly_answer);
$poly_answer_compiled = poly_compile($poly_answer,$max_coord);
$overlap = poly_touch($poly_user_compiled, $poly_answer_compiled,$max_coord);
if ($overlap == false) {
//all good, no overlap
$next = 1;
continue;
} else {
if ($debug>0) {
error_log(__LINE__.' - Overlap is '.$overlap.': OAR hit',0);
}
$organs_at_risk_hit++;
//show the feedback
$next=0;
$comment=$answerDestination=$objAnswerTmp->selectComment($answerId);
$answerDestination=$objAnswerTmp->selectDestination($answerId);
$destination_items= explode('@@', $answerDestination);
$try_hotspot=$destination_items[1];
$lp_hotspot=$destination_items[2];
$select_question_hotspot=$destination_items[3];
$url_hotspot=$destination_items[4];
}
}
} else { // the first delineation feedback
if ($debug>0) {
error_log(__LINE__.' first',0);
}
}
} elseif($answerType == MATCHING) {
echo '<tr>';
echo '<td>' . $answerMatching[$answerId] . '</td>';
echo '<td>' . $user_answer . ' / <b>'
. '<span style="color: #008000;">' . $answerMatching[$answerCorrect] . '</span>'
. '</b></td>';
echo '</tr>';
}
}
} else {
if ($debug) error_log('Showing questions $from '.$from);
switch ($answerType) {
case UNIQUE_ANSWER :
case UNIQUE_ANSWER_IMAGE:
case UNIQUE_ANSWER_NO_OPTION:
case MULTIPLE_ANSWER :
case GLOBAL_MULTIPLE_ANSWER :
case MULTIPLE_ANSWER_COMBINATION :
if ($answerId == 1) {
ExerciseShowFunctions::display_unique_or_multiple_answer(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
$exeId,
$questionId,
$answerId,
$results_disabled
);
} else {
ExerciseShowFunctions::display_unique_or_multiple_answer(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
$exeId,
$questionId,
"",
$results_disabled
);
}
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
if ($answerId == 1) {
ExerciseShowFunctions::display_multiple_answer_combination_true_false(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
$exeId,
$questionId,
$answerId,
$results_disabled
);
} else {
ExerciseShowFunctions::display_multiple_answer_combination_true_false(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
$exeId,
$questionId,
"",
$results_disabled
);
}
break;
case MULTIPLE_ANSWER_TRUE_FALSE :
if ($answerId == 1) {
ExerciseShowFunctions::display_multiple_answer_true_false(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
$exeId,
$questionId,
$answerId,
$results_disabled
);
} else {
ExerciseShowFunctions::display_multiple_answer_true_false(
$feedback_type,
$answerType,
$studentChoice,
$answer,
$answerComment,
$answerCorrect,
$exeId,
$questionId,
"",
$results_disabled
);
}
break;
case FILL_IN_BLANKS:
ExerciseShowFunctions::display_fill_in_blanks_answer(
$feedback_type,
$answer,
$exeId,
$questionId
);
break;
case CALCULATED_ANSWER:
ExerciseShowFunctions::display_calculated_answer(
$feedback_type,
$answer,
$exeId,
$questionId
);
break;
case FREE_ANSWER:
echo ExerciseShowFunctions::display_free_answer(
$feedback_type,
$choice,
$exeId,
$questionId,
$questionScore
);
break;
case ORAL_EXPRESSION:
echo '<tr>
<td valign="top">' . ExerciseShowFunctions::display_oral_expression_answer(
$feedback_type,
$choice,
$exeId,
$questionId,
$nano
) . '</td>
</tr>
</table>';
break;
case HOT_SPOT:
ExerciseShowFunctions::display_hotspot_answer(
$feedback_type,
$answerId,
$answer,
$studentChoice,
$answerComment,
$results_disabled);
break;
case HOT_SPOT_DELINEATION:
$user_answer = $user_array;
if ($next) {
//$tbl_track_e_hotspot = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
// Save into db
/* $sql = "INSERT INTO $tbl_track_e_hotspot (
* hotspot_user_id,
* hotspot_course_code,
* hotspot_exe_id,
* hotspot_question_id,
* hotspot_answer_id,
* hotspot_correct,
* hotspot_coordinate
* )
VALUES (
* '".Database::escape_string($_user['user_id'])."',
* '".Database::escape_string($_course['id'])."',
* '".Database::escape_string($exeId)."', '".Database::escape_string($questionId)."',
* '".Database::escape_string($answerId)."',
* '".Database::escape_string($studentChoice)."',
* '".Database::escape_string($user_array)."')";
$result = Database::query($sql,__FILE__,__LINE__);
*/
$user_answer = $user_array;
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
//calculating the area
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
//$overlap = round(polygons_overlap($poly_answer,$poly_user)); //this is an area in pixels
if ($debug > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
} else {
// the final overlap is the percentage of the initial polygon that is overlapped by the user's polygon
$final_overlap = round(((float) $overlap / (float) $poly_answer_area) * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final overlap is ' . $final_overlap, 0);
}
// the final missing area is the percentage of the initial polygon that is not overlapped by the user's polygon
$final_missing = 100 - $final_overlap;
if ($debug > 1) {
error_log(__LINE__ . ' - Final missing is ' . $final_missing, 0);
}
// the final excess area is the percentage of the initial polygon's size that is covered by the user's polygon outside of the initial polygon
$final_excess = round((((float) $poly_user_area - (float) $overlap) / (float) $poly_answer_area) * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final excess is ' . $final_excess, 0);
}
}
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
$threadhold_total = $destination_items[0];
$threadhold_items = explode(';', $threadhold_total);
$threadhold1 = $threadhold_items[0]; // overlap
$threadhold2 = $threadhold_items[1]; // excess
$threadhold3 = $threadhold_items[2]; //missing
// if is delineation
if ($answerId === 1) {
//setting colors
if ($final_overlap >= $threadhold1) {
$overlap_color = true; //echo 'a';
}
//echo $excess.'-'.$threadhold2;
if ($final_excess <= $threadhold2) {
$excess_color = true; //echo 'b';
}
//echo '--------'.$missing.'-'.$threadhold3;
if ($final_missing <= $threadhold3) {
$missing_color = true; //echo 'c';
}
// if pass
if ($final_overlap >= $threadhold1 && $final_missing <= $threadhold3 && $final_excess <= $threadhold2) {
$next = 1; //go to the oars
$result_comment = get_lang('Acceptable');
$final_answer = 1; // do not update with update_exercise_attempt
} else {
$next = 0;
$result_comment = get_lang('Unacceptable');
$comment = $answerDestination = $objAnswerTmp->selectComment(1);
$answerDestination = $objAnswerTmp->selectDestination(1);
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
}
} elseif ($answerId > 1) {
if ($objAnswerTmp->selectHotspotType($answerId) == 'noerror') {
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is of type noerror', 0);
}
//type no error shouldn't be treated
$next = 1;
continue;
}
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is >1 so we\'re probably in OAR', 0);
}
//check the intersection between the oar and the user
//echo 'user'; print_r($x_user_list); print_r($y_user_list);
//echo 'official';print_r($x_list);print_r($y_list);
//$result = get_intersection_data($x_list,$y_list,$x_user_list,$y_user_list);
$inter = $result['success'];
//$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates($answerId);
$poly_answer = convert_coordinates($delineation_cord, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$overlap = poly_touch($poly_user_compiled, $poly_answer_compiled,$max_coord);
if ($overlap == false) {
//all good, no overlap
$next = 1;
continue;
} else {
if ($debug > 0) {
error_log(__LINE__ . ' - Overlap is ' . $overlap . ': OAR hit', 0);
}
$organs_at_risk_hit++;
//show the feedback
$next = 0;
$comment = $answerDestination = $objAnswerTmp->selectComment($answerId);
$answerDestination = $objAnswerTmp->selectDestination($answerId);
$destination_items = explode('@@', $answerDestination);
$try_hotspot = $destination_items[1];
$lp_hotspot = $destination_items[2];
$select_question_hotspot = $destination_items[3];
$url_hotspot=$destination_items[4];
}
}
} else { // the first delineation feedback
if ($debug > 0) {
error_log(__LINE__ . ' first', 0);
}
}
break;
case HOT_SPOT_ORDER:
ExerciseShowFunctions::display_hotspot_order_answer(
$feedback_type,
$answerId,
$answer,
$studentChoice,
$answerComment
);
break;
case MATCHING:
echo '<tr>';
echo '<td>' . $answerMatching[$answerId] . '</td>';
echo '<td>' . $user_answer . ' / <b>'
. '<span style="color: #008000;">' . $answerMatching[$answerCorrect] . '</span></b>'
. '</td>';
echo '</tr>';
break;
}
}
}
if ($debug) error_log(' ------ ');
} // end for that loops over all answers of the current question
if ($debug) error_log('-- end answer loop --');
$final_answer = true;
foreach ($real_answers as $my_answer) {
if (!$my_answer) {
$final_answer = false;
}
}
//we add the total score after dealing with the answers
if ($answerType == MULTIPLE_ANSWER_COMBINATION || $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE ) {
if ($final_answer) {
//getting only the first score where we save the weight of all the question
$answerWeighting = $objAnswerTmp->selectWeighting(1);
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
//Fixes multiple answer question in order to be exact
//if ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
/* if ($answerType == GLOBAL_MULTIPLE_ANSWER) {
$diff = @array_diff($answer_correct_array, $real_answers);
// All good answers or nothing works like exact
$counter = 1;
$correct_answer = true;
foreach ($real_answers as $my_answer) {
if ($debug)
error_log(" my_answer: $my_answer answer_correct_array[counter]: ".$answer_correct_array[$counter]);
if ($my_answer != $answer_correct_array[$counter]) {
$correct_answer = false;
break;
}
$counter++;
}
if ($debug) error_log(" answer_correct_array: ".print_r($answer_correct_array, 1)."");
if ($debug) error_log(" real_answers: ".print_r($real_answers, 1)."");
if ($debug) error_log(" correct_answer: ".$correct_answer);
if ($correct_answer == false) {
$questionScore = 0;
}
// This makes the result non exact
if (!empty($diff)) {
$questionScore = 0;
}
}*/
$extra_data = array(
'final_overlap' => $final_overlap,
'final_missing'=>$final_missing,
'final_excess'=> $final_excess,
'overlap_color' => $overlap_color,
'missing_color'=>$missing_color,
'excess_color'=> $excess_color,
'threadhold1' => $threadhold1,
'threadhold2'=>$threadhold2,
'threadhold3'=> $threadhold3,
);
if ($from == 'exercise_result') {
// if answer is hotspot. To the difference of exercise_show.php,
// we use the results from the session (from_db=0)
// TODO Change this, because it is wrong to show the user
// some results that haven't been stored in the database yet
if ($answerType == HOT_SPOT || $answerType == HOT_SPOT_ORDER || $answerType == HOT_SPOT_DELINEATION ) {
if ($debug) error_log('$from AND this is a hotspot kind of question ');
$my_exe_id = 0;
$from_database = 0;
if ($answerType == HOT_SPOT_DELINEATION) {
if (0) {
if ($overlap_color) {
$overlap_color='green';
} else {
$overlap_color='red';
}
if ($missing_color) {
$missing_color='green';
} else {
$missing_color='red';
}
if ($excess_color) {
$excess_color='green';
} else {
$excess_color='red';
}
if (!is_numeric($final_overlap)) {
$final_overlap = 0;
}
if (!is_numeric($final_missing)) {
$final_missing = 0;
}
if (!is_numeric($final_excess)) {
$final_excess = 0;
}
if ($final_overlap>100) {
$final_overlap = 100;
}
$table_resume='<table class="data_table">
<tr class="row_odd" >
<td></td>
<td ><b>' . get_lang('Requirements') . '</b></td>
<td><b>' . get_lang('YourAnswer') . '</b></td>
</tr>
<tr class="row_even">
<td><b>' . get_lang('Overlap') . '</b></td>
<td>' . get_lang('Min') . ' ' . $threadhold1 . '</td>
<td><div style="color:' . $overlap_color . '">'
. (($final_overlap < 0) ? 0 : intval($final_overlap)) . '</div></td>
</tr>
<tr>
<td><b>' . get_lang('Excess') . '</b></td>
<td>' . get_lang('Max') . ' ' . $threadhold2 . '</td>
<td><div style="color:' . $excess_color . '">'
. (($final_excess < 0) ? 0 : intval($final_excess)) . '</div></td>
</tr>
<tr class="row_even">
<td><b>' . get_lang('Missing') . '</b></td>
<td>' . get_lang('Max') . ' ' . $threadhold3 . '</td>
<td><div style="color:' . $missing_color . '">'
. (($final_missing < 0) ? 0 : intval($final_missing)) . '</div></td>
</tr>
</table>';
if ($next == 0) {
$try = $try_hotspot;
$lp = $lp_hotspot;
$destinationid = $select_question_hotspot;
$url = $url_hotspot;
} else {
//show if no error
//echo 'no error';
$comment = $answerComment = $objAnswerTmp->selectComment($nbrAnswers);
$answerDestination = $objAnswerTmp->selectDestination($nbrAnswers);
}
echo '<h1><div style="color:#333;">' . get_lang('Feedback') . '</div></h1>
<p style="text-align:center">';
$message = '<p>' . get_lang('YourDelineation') . '</p>';
$message .= $table_resume;
$message .= '<br />' . get_lang('ResultIs') . ' ' . $result_comment . '<br />';
if ($organs_at_risk_hit > 0) {
$message .= '<p><b>' . get_lang('OARHit') . '</b></p>';
}
$message .='<p>' . $comment . '</p>';
echo $message;
} else {
echo $hotspot_delineation_result[0]; //prints message
$from_database = 1; // the hotspot_solution.swf needs this variable
}
//save the score attempts
if (1) {
//getting the answer 1 or 0 comes from exercise_submit_modal.php
$final_answer = $hotspot_delineation_result[1];
if ($final_answer == 0) {
$questionScore = 0;
}
// we always insert the answer_id 1 = delineation
Event::saveQuestionAttempt($questionScore, 1, $quesId, $exeId, 0);
//in delineation mode, get the answer from $hotspot_delineation_result[1]
Event::saveExerciseAttemptHotspot(
$exeId,
$quesId,
1,
$hotspot_delineation_result[1],
$exerciseResultCoordinates[$quesId]
);
} else {
if ($final_answer==0) {
$questionScore = 0;
$answer=0;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0);
if (is_array($exerciseResultCoordinates[$quesId])) {
foreach($exerciseResultCoordinates[$quesId] as $idx => $val) {
Event::saveExerciseAttemptHotspot($exeId,$quesId,$idx,0,$val);
}
}
} else {
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0);
if (is_array($exerciseResultCoordinates[$quesId])) {
foreach($exerciseResultCoordinates[$quesId] as $idx => $val) {
Event::saveExerciseAttemptHotspot($exeId,$quesId,$idx,$choice[$idx],$val);
}
}
}
}
$my_exe_id = $exeId;
}
}
if ($answerType == HOT_SPOT || $answerType == HOT_SPOT_ORDER) {
// We made an extra table for the answers
if ($show_result) {
// if ($origin != 'learnpath') {
echo '</table></td></tr>';
echo '<tr>
<td colspan="2">';
echo '<i>'.get_lang('HotSpot').'</i><br /><br />';
echo '<object type="application/x-shockwave-flash" data="'
. api_get_path(WEB_CODE_PATH)
. 'plugin/hotspot/hotspot_solution.swf?modifyAnswers='
. Security::remove_XSS($questionId)
. '&exe_id='
. $exeId
. '&from_db=1" width="552" height="352">
<param name="movie" value="../plugin/hotspot/hotspot_solution.swf?modifyAnswers='
. Security::remove_XSS($questionId)
. '&exe_id='
. $exeId
. '&from_db=1" />
</object>';
echo '</td>
</tr>';
// }
}
}
//if ($origin != 'learnpath') {
if ($show_result) {
echo '</table>';
}
// }
}
unset ($objAnswerTmp);
$totalWeighting += $questionWeighting;
// Store results directly in the database
// For all in one page exercises, the results will be
// stored by exercise_results.php (using the session)
if ($saved_results) {
if ($debug) error_log("Save question results $saved_results");
if ($debug) error_log(print_r($choice ,1 ));
if (empty($choice)) {
$choice = 0;
}
if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE || $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
if ($choice != 0) {
$reply = array_keys($choice);
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
Event::saveQuestionAttempt(
$questionScore,
$ans . ':' . $choice[$ans],
$quesId,
$exeId,
$i,
$this->id
);
if ($debug) {
error_log('result =>' . $questionScore . ' ' . $ans . ':' . $choice[$ans]);
}
}
} else {
Event::saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id);
}
} elseif ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
if ($choice != 0) {
$reply = array_keys($choice);
if ($debug) {
error_log("reply " . print_r($reply, 1) . "");
}
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
Event::saveQuestionAttempt($questionScore, $ans, $quesId, $exeId, $i, $this->id);
}
} else {
Event::saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id);
}
} elseif ($answerType == MULTIPLE_ANSWER_COMBINATION) {
if ($choice != 0) {
$reply = array_keys($choice);
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
Event::saveQuestionAttempt($questionScore, $ans, $quesId, $exeId, $i, $this->id);
}
} else {
Event::saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id);
}
} elseif ($answerType == MATCHING) {
if (isset($matching)) {
foreach ($matching as $j => $val) {
Event::saveQuestionAttempt($questionScore, $val, $quesId, $exeId, $j, $this->id);
}
}
} elseif ($answerType == FREE_ANSWER) {
$answer = $choice;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id);
} elseif ($answerType == ORAL_EXPRESSION) {
$answer = $choice;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $nano);
} elseif (in_array($answerType, [UNIQUE_ANSWER, UNIQUE_ANSWER_IMAGE, UNIQUE_ANSWER_NO_OPTION])) {
$answer = $choice;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id);
// } elseif ($answerType == HOT_SPOT || $answerType == HOT_SPOT_DELINEATION) {
} elseif ($answerType == HOT_SPOT) {
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id);
if (isset($exerciseResultCoordinates[$questionId]) && !empty($exerciseResultCoordinates[$questionId])) {
foreach ($exerciseResultCoordinates[$questionId] as $idx => $val) {
Event::saveExerciseAttemptHotspot($exeId, $quesId, $idx, $choice[$idx], $val, $this->id);
}
}
} else {
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0,$this->id);
}
}
if ($propagate_neg == 0 && $questionScore < 0) {
$questionScore = 0;
}
if ($saved_results) {
$stat_table = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$sql = 'UPDATE ' . $stat_table . ' SET
exe_result = exe_result + ' . floatval($questionScore) . '
WHERE exe_id = ' . $exeId;
if ($debug) error_log($sql);
Database::query($sql);
}
$return_array = array(
'score' => $questionScore,
'weight' => $questionWeighting,
'extra' => $extra_data,
'open_question' => $arrques,
'open_answer' => $arrans,
'answer_type' => $answerType
);
return $return_array;
}
/**
* Sends a notification when a user ends an examn
*
*/
public function send_mail_notification_for_exam($question_list_answers, $origin, $exe_id)
{
if (api_get_course_setting('email_alert_manager_on_new_quiz') != 1 ) {
return null;
}
// Email configuration settings
$courseCode = api_get_course_id();
$courseInfo = api_get_course_info($courseCode);
$sessionId = api_get_session_id();
if (empty($courseInfo)) {
return false;
}
$url_email = api_get_path(WEB_CODE_PATH)
. 'exercice/exercise_show.php?'
. api_get_cidreq()
. '&id_session='
. $sessionId
. '&id='
. $exe_id
. '&action=qualify';
$user_info = UserManager::get_user_info_by_id(api_get_user_id());
$msg = '<p>'.get_lang('ExerciseAttempted').' :</p>
<p>'.get_lang('AttemptDetails').' : </p>
<table class="data_table">
<tr>
<td><h3>'.get_lang('CourseName').'</h3></td>
<td><h3>#course#</h3></td>
</tr>
<tr>
<td>'.get_lang('TestAttempted').'</span></td>
<td>#exercise#</td>
</tr>
<tr>
<td>'.get_lang('StudentName').'</td>
<td>#firstName# #lastName#</td>
</tr>
<tr>
<td>'.get_lang('StudentEmail').'</td>
<td>#email#</td>
</tr>
</table>';
$open_question_list = null;
$msg = str_replace("#email#", $user_info['email'], $msg);
$msg1 = str_replace("#exercise#", $this->exercise, $msg);
$msg = str_replace("#firstName#", $user_info['firstname'], $msg1);
$msg1 = str_replace("#lastName#", $user_info['lastname'], $msg);
$msg = str_replace("#course#", $courseInfo['name'], $msg1);
if ($origin != 'learnpath') {
$msg.= get_lang('ClickToCommentAndGiveFeedback').', <br />
<a href="#url#">#url#</a>';
}
$msg1 = str_replace("#url#", $url_email, $msg);
$mail_content = $msg1;
$subject = get_lang('ExerciseAttempted');
if (!empty($sessionId)) {
$teachers = CourseManager::get_coach_list_from_course_code($courseCode, $sessionId);
} else {
$teachers = CourseManager::get_teacher_list_from_course_code($courseCode);
}
if (!empty($teachers)) {
foreach ($teachers as $user_id => $teacher_data) {
MessageManager::send_message_simple(
$user_id,
$subject,
$mail_content
);
}
}
}
/**
* Sends a notification when a user ends an examn
*
*/
function send_notification_for_open_questions($question_list_answers, $origin, $exe_id)
{
if (api_get_course_setting('email_alert_manager_on_new_quiz') != 1 ) {
return null;
}
// Email configuration settings
$courseCode = api_get_course_id();
$course_info = api_get_course_info($courseCode);
$url_email = api_get_path(WEB_CODE_PATH)
. 'exercice/exercise_show.php?'
. api_get_cidreq()
. '&id_session='
. api_get_session_id()
. '&id='
. $exe_id
. '&action=qualify';
$user_info = UserManager::get_user_info_by_id(api_get_user_id());
$msg = '<p>'.get_lang('OpenQuestionsAttempted').' :</p>
<p>'.get_lang('AttemptDetails').' : </p>
<table class="data_table">
<tr>
<td><h3>'.get_lang('CourseName').'</h3></td>
<td><h3>#course#</h3></td>
</tr>
<tr>
<td>'.get_lang('TestAttempted').'</span></td>
<td>#exercise#</td>
</tr>
<tr>
<td>'.get_lang('StudentName').'</td>
<td>#firstName# #lastName#</td>
</tr>
<tr>
<td>'.get_lang('StudentEmail').'</td>
<td>#mail#</td>
</tr>
</table>';
$open_question_list = null;
foreach ($question_list_answers as $item) {
$question = $item['question'];
$answer = $item['answer'];
$answer_type = $item['answer_type'];
if (!empty($question) && !empty($answer) && $answer_type == FREE_ANSWER) {
$open_question_list.='
<tr>
<td width="220" valign="top" bgcolor="#E5EDF8">&nbsp;&nbsp;'.get_lang('Question').'</td>
<td width="473" valign="top" bgcolor="#F3F3F3">'.$question.'</td>
</tr>
<tr>
<td width="220" valign="top" bgcolor="#E5EDF8">&nbsp;&nbsp;'.get_lang('Answer').'</td>
<td valign="top" bgcolor="#F3F3F3">'.$answer.'</td>
</tr>';
}
}
if (!empty($open_question_list)) {
$msg .= '<p><br />'.get_lang('OpenQuestionsAttemptedAre').' :</p>
<table width="730" height="136" border="0" cellpadding="3" cellspacing="3">';
$msg .= $open_question_list;
$msg .= '</table><br />';
$msg1 = str_replace("#exercise#", $this->exercise, $msg);
$msg = str_replace("#firstName#", $user_info['firstname'],$msg1);
$msg1 = str_replace("#lastName#", $user_info['lastname'],$msg);
$msg = str_replace("#mail#", $user_info['email'],$msg1);
$msg = str_replace("#course#", $course_info['name'],$msg1);
if ($origin != 'learnpath') {
$msg .= get_lang('ClickToCommentAndGiveFeedback').', <br />
<a href="#url#">#url#</a>';
}
$msg1 = str_replace("#url#", $url_email, $msg);
$mail_content = $msg1;
$subject = get_lang('OpenQuestionsAttempted');
if (api_get_session_id()) {
$teachers = CourseManager::get_coach_list_from_course_code($courseCode, api_get_session_id());
} else {
$teachers = CourseManager::get_teacher_list_from_course_code($courseCode);
}
if (!empty($teachers)) {
foreach ($teachers as $user_id => $teacher_data) {
MessageManager::send_message_simple(
$user_id,
$subject,
$mail_content
);
}
}
}
}
function send_notification_for_oral_questions($question_list_answers, $origin, $exe_id)
{
if (api_get_course_setting('email_alert_manager_on_new_quiz') != 1 ) {
return null;
}
// Email configuration settings
$courseCode = api_get_course_id();
$course_info = api_get_course_info($courseCode);
$url_email = api_get_path(WEB_CODE_PATH)
. 'exercice/exercise_show.php?'
. api_get_cidreq()
. '&id_session='
. api_get_session_id()
. '&id='
. $exe_id
. '&action=qualify';
$user_info = UserManager::get_user_info_by_id(api_get_user_id());
$oral_question_list = null;
foreach ($question_list_answers as $item) {
$question = $item['question'];
$answer = $item['answer'];
$answer_type = $item['answer_type'];
if (!empty($question) && !empty($answer) && $answer_type == ORAL_EXPRESSION) {
$oral_question_list.='<br /><table width="730" height="136" border="0" cellpadding="3" cellspacing="3">
<tr>
<td width="220" valign="top" bgcolor="#E5EDF8">&nbsp;&nbsp;'.get_lang('Question').'</td>
<td width="473" valign="top" bgcolor="#F3F3F3">'.$question.'</td>
</tr>
<tr>
<td width="220" valign="top" bgcolor="#E5EDF8">&nbsp;&nbsp;'.get_lang('Answer').'</td>
<td valign="top" bgcolor="#F3F3F3">'.$answer.'</td>
</tr></table>';
}
}
if (!empty($oral_question_list)) {
$msg = '<p>'.get_lang('OralQuestionsAttempted').' :</p>
<p>'.get_lang('AttemptDetails').' : </p>
<table class="data_table">
<tr>
<td><h3>'.get_lang('CourseName').'</h3></td>
<td><h3>#course#</h3></td>
</tr>
<tr>
<td>'.get_lang('TestAttempted').'</span></td>
<td>#exercise#</td>
</tr>
<tr>
<td>'.get_lang('StudentName').'</td>
<td>#firstName# #lastName#</td>
</tr>
<tr>
<td>'.get_lang('StudentEmail').'</td>
<td>#mail#</td>
</tr>
</table>';
$msg .= '<br />'.sprintf(get_lang('OralQuestionsAttemptedAreX'),$oral_question_list).'<br />';
$msg1 = str_replace("#exercise#", $this->exercise, $msg);
$msg = str_replace("#firstName#", $user_info['firstname'],$msg1);
$msg1 = str_replace("#lastName#", $user_info['lastname'],$msg);
$msg = str_replace("#mail#", $user_info['email'],$msg1);
$msg = str_replace("#course#", $course_info['name'],$msg1);
if ($origin != 'learnpath') {
$msg.= get_lang('ClickToCommentAndGiveFeedback').', <br />
<a href="#url#">#url#</a>';
}
$msg1 = str_replace("#url#", $url_email, $msg);
$mail_content = $msg1;
$subject = get_lang('OralQuestionsAttempted');
if (api_get_session_id()) {
$teachers = CourseManager::get_coach_list_from_course_code($courseCode, api_get_session_id());
} else {
$teachers = CourseManager::get_teacher_list_from_course_code($courseCode);
}
if (!empty($teachers)) {
foreach ($teachers as $user_id => $teacher_data) {
MessageManager::send_message_simple(
$user_id,
$subject,
$mail_content
);
}
}
}
}
/**
* @param array $user_data result of api_get_user_info()
* @param null $start_date
* @param null $duration
* @param string $ip Optional. The user IP
* @return string
*/
public function show_exercise_result_header($user_data, $start_date = null, $duration = null, $ip = null)
{
$array = array();
if (!empty($user_data)) {
$array[] = array('title' => get_lang('Name'), 'content' => $user_data['complete_name']);
$array[] = array('title' => get_lang('Username'), 'content' => $user_data['username']);
if (!empty($user_data['official_code'])) {
$array[] = array(
'title' => get_lang('OfficialCode'),
'content' => $user_data['official_code']
);
}
}
// Description can be very long and is generally meant to explain
// rules *before* the exam. Leaving here to make display easier if
// necessary
/*
if (!empty($this->description)) {
$array[] = array('title' => get_lang("Description"), 'content' => $this->description);
}
*/
if (!empty($start_date)) {
$array[] = array('title' => get_lang('StartDate'), 'content' => $start_date);
}
if (!empty($duration)) {
$array[] = array('title' => get_lang('Duration'), 'content' => $duration);
}
if (!empty($ip)) {
$array[] = array('title' => get_lang('IP'), 'content' => $ip);
}
$html = Display::page_header(
Display::return_icon('quiz_big.png', get_lang('Result')).' '.$this->exercise.' : '.get_lang('Result')
);
$html .= Display::description($array);
return $html;
}
/**
* Create a quiz from quiz data
* @param string Title
* @param int Time before it expires (in minutes)
* @param int Type of exercise
* @param int Whether it's randomly picked questions (1) or not (0)
* @param int Whether the exercise is visible to the user (1) or not (0)
* @param int Whether the results are show to the user (0) or not (1)
* @param int Maximum number of attempts (0 if no limit)
* @param int Feedback type
* @todo this was function was added due the import exercise via CSV
* @return int New exercise ID
*/
public function createExercise(
$title,
$expired_time = 0,
$type = 2,
$random = 0,
$active = 1,
$results_disabled = 0,
$max_attempt = 0,
$feedback = 3,
$propagateNegative = 0
) {
$tbl_quiz = Database::get_course_table(TABLE_QUIZ_TEST);
$type = intval($type);
$random = intval($random);
$active = intval($active);
$results_disabled = intval($results_disabled);
$max_attempt = intval($max_attempt);
$feedback = intval($feedback);
$expired_time = intval($expired_time);
$title = Database::escape_string($title);
$propagateNegative = intval($propagateNegative);
$sessionId = api_get_session_id();
$course_id = api_get_course_int_id();
// Save a new quiz
$sql = "INSERT INTO $tbl_quiz (
c_id,
title,
type,
random,
active,
results_disabled,
max_attempt,
start_time,
end_time,
feedback_type,
expired_time,
session_id,
propagate_neg
)
VALUES (
'$course_id',
'$title',
$type,
$random,
$active,
$results_disabled,
$max_attempt,
'',
'',
$feedback,
$expired_time,
$sessionId,
$propagateNegative
)";
Database::query($sql);
$quiz_id = Database::insert_id();
if ($quiz_id) {
$sql = "UPDATE $tbl_quiz SET id = iid WHERE iid = {$quiz_id} ";
Database::query($sql);
}
return $quiz_id;
}
function process_geometry()
{
}
/**
* Returns the exercise result
* @param int attempt id
* @return float exercise result
*/
public function get_exercise_result($exe_id)
{
$result = array();
$track_exercise_info = ExerciseLib::get_exercise_track_exercise_info($exe_id);
if (!empty($track_exercise_info)) {
$totalScore = 0;
$objExercise = new Exercise();
$objExercise->read($track_exercise_info['exe_exo_id']);
if (!empty($track_exercise_info['data_tracking'])) {
$question_list = explode(',', $track_exercise_info['data_tracking']);
}
foreach ($question_list as $questionId) {
$question_result = $objExercise->manage_answer(
$exe_id,
$questionId,
'',
'exercise_show',
array(),
false,
true,
false,
$objExercise->selectPropagateNeg()
);
$totalScore += $question_result['score'];
}
if ($objExercise->selectPropagateNeg() == 0 && $totalScore < 0) {
$totalScore = 0;
}
$result = array(
'score' => $totalScore,
'weight' => $track_exercise_info['exe_weighting']
);
}
return $result;
}
/**
* Checks if the exercise is visible due a lot of conditions - visibility, time limits, student attempts
* @return bool true if is active
*/
public function is_visible(
$lp_id = 0,
$lp_item_id = 0,
$lp_item_view_id = 0,
$filter_by_admin = true
) {
// 1. By default the exercise is visible
$is_visible = true;
$message = null;
// 1.1 Admins and teachers can access to the exercise
if ($filter_by_admin) {
if (api_is_platform_admin() || api_is_course_admin()) {
return array('value' => true, 'message' => '');
}
}
// Deleted exercise.
if ($this->active == -1) {
return array(
'value' => false,
'message' => Display::return_message(get_lang('ExerciseNotFound'), 'warning', false)
);
}
// Checking visibility in the item_property table.
$visibility = api_get_item_visibility(api_get_course_info(), TOOL_QUIZ, $this->id, api_get_session_id());
if ($visibility == 0 || $visibility == 2) {
$this->active = 0;
}
// 2. If the exercise is not active.
if (empty($lp_id)) {
//2.1 LP is OFF
if ($this->active == 0) {
return array(
'value' => false,
'message' => Display::return_message(get_lang('ExerciseNotFound'), 'warning', false)
);
}
} else {
//2.1 LP is loaded
if ($this->active == 0 AND !learnpath::is_lp_visible_for_student($lp_id, api_get_user_id())) {
return array(
'value' => false,
'message' => Display::return_message(get_lang('ExerciseNotFound'), 'warning', false)
);
}
}
//3. We check if the time limits are on
$limit_time_exists = (
(!empty($this->start_time) && $this->start_time != '0000-00-00 00:00:00') ||
(!empty($this->end_time) && $this->end_time != '0000-00-00 00:00:00')
) ? true : false;
if ($limit_time_exists) {
$time_now = time();
if (!empty($this->start_time) && $this->start_time != '0000-00-00 00:00:00') {
$is_visible = (($time_now - api_strtotime($this->start_time, 'UTC')) > 0) ? true : false;
}
if ($is_visible == false) {
$message = sprintf(
get_lang('ExerciseAvailableFromX'),
api_convert_and_format_date($this->start_time)
);
}
if ($is_visible == true) {
if ($this->end_time != '0000-00-00 00:00:00') {
$is_visible = ((api_strtotime($this->end_time, 'UTC') > $time_now) > 0) ? true : false;
if ($is_visible == false) {
$message = sprintf(
get_lang('ExerciseAvailableUntilX'),
api_convert_and_format_date($this->end_time)
);
}
}
}
if (
$is_visible == false &&
$this->start_time != '0000-00-00 00:00:00' &&
$this->end_time != '0000-00-00 00:00:00'
) {
$message = sprintf(
get_lang('ExerciseWillBeActivatedFromXToY'),
api_convert_and_format_date($this->start_time),
api_convert_and_format_date($this->end_time)
);
}
}
// 4. We check if the student have attempts
$exerciseAttempts = $this->selectAttempts();
if ($is_visible) {
if ($exerciseAttempts > 0) {
$attempt_count = Event::get_attempt_count_not_finished(
api_get_user_id(),
$this->id,
$lp_id,
$lp_item_id,
$lp_item_view_id
);
if ($attempt_count >= $exerciseAttempts) {
$message = sprintf(
get_lang('ReachedMaxAttempts'),
$this->name,
$exerciseAttempts
);
$is_visible = false;
}
}
}
if (!empty($message)){
$message = Display::return_message($message, 'warning', false);
}
return array(
'value' => $is_visible,
'message' => $message
);
}
public function added_in_lp()
{
$TBL_LP_ITEM = Database::get_course_table(TABLE_LP_ITEM);
$sql = "SELECT max_score FROM $TBL_LP_ITEM
WHERE c_id = {$this->course_id} AND item_type = '" . TOOL_QUIZ . "' AND path = '{$this->id}'";
$result = Database::query($sql);
if (Database::num_rows($result) > 0) {
return true;
}
return false;
}
function get_media_list()
{
$media_questions = array();
$question_list = $this->get_validated_question_list();
if (!empty($question_list)) {
foreach ($question_list as $questionId) {
$objQuestionTmp = Question::read($questionId);
if (isset($objQuestionTmp->parent_id) && $objQuestionTmp->parent_id != 0) {
$media_questions[$objQuestionTmp->parent_id][] = $objQuestionTmp->id;
} else {
//Always the last item
$media_questions[999][] = $objQuestionTmp->id;
}
}
}
return $media_questions;
}
function media_is_activated($media_list)
{
$active = false;
if (isset($media_list) && !empty($media_list)) {
$media_count = count($media_list);
if ($media_count > 1) {
return true;
} elseif ($media_count == 1) {
if (isset($media_list[999])) {
return false;
} else {
return true;
}
}
}
return $active;
}
function get_validated_question_list()
{
$tabres = array();
$isRandomByCategory = $this->isRandomByCat();
if ($isRandomByCategory == 0) {
if ($this->isRandom()) {
$tabres = $this->selectRandomList();
} else {
$tabres = $this->selectQuestionList();
}
} else {
if ($this->isRandom()) {
// USE question categories
// get questions by category for this exercice
// we have to choice $objExercise->random question in each array values of $tabCategoryQuestions
// key of $tabCategoryQuestions are the categopy id (0 for not in a category)
// value is the array of question id of this category
$questionList = array();
$tabCategoryQuestions = TestCategory::getQuestionsByCat($this->id);
$isRandomByCategory = $this->selectRandomByCat();
// on tri les categories en fonction du terme entre [] en tete de la description de la categorie
/*
* ex de catégories :
* [biologie] Maitriser les mecanismes de base de la genetique
* [biologie] Relier les moyens de depenses et les agents infectieux
* [biologie] Savoir ou est produite l'enrgie dans les cellules et sous quelle forme
* [chimie] Classer les molles suivant leur pouvoir oxydant ou reacteur
* [chimie] Connaître la denition de la theoie acide/base selon Brönsted
* [chimie] Connaître les charges des particules
* On veut dans l'ordre des groupes definis par le terme entre crochet au debut du titre de la categorie
*/
// If test option is Grouped By Categories
if ($isRandomByCategory == 2) {
$tabCategoryQuestions = TestCategory::sortTabByBracketLabel($tabCategoryQuestions);
}
while (list($cat_id, $tabquestion) = each($tabCategoryQuestions)) {
$number_of_random_question = $this->random;
if ($this->random == -1) {
$number_of_random_question = count($this->questionList);
}
$questionList = array_merge(
$questionList,
TestCategory::getNElementsFromArray(
$tabquestion,
$number_of_random_question
)
);
}
// shuffle the question list if test is not grouped by categories
if ($isRandomByCategory == 1) {
shuffle($questionList); // or not
}
$tabres = $questionList;
} else {
// Problem, random by category has been selected and
// we have no $this->isRandom number of question selected
// Should not happened
}
}
return $tabres;
}
function get_question_list($expand_media_questions = false)
{
$question_list = $this->get_validated_question_list();
$question_list = $this->transform_question_list_with_medias($question_list, $expand_media_questions);
return $question_list;
}
function transform_question_list_with_medias($question_list, $expand_media_questions = false)
{
$new_question_list = array();
if (!empty($question_list)) {
$media_questions = $this->get_media_list();
$media_active = $this->media_is_activated($media_questions);
if ($media_active) {
$counter = 1;
foreach ($question_list as $question_id) {
$add_question = true;
foreach ($media_questions as $media_id => $question_list_in_media) {
if ($media_id != 999 && in_array($question_id, $question_list_in_media)) {
$add_question = false;
if (!in_array($media_id, $new_question_list)) {
$new_question_list[$counter] = $media_id;
$counter++;
}
break;
}
}
if ($add_question) {
$new_question_list[$counter] = $question_id;
$counter++;
}
}
if ($expand_media_questions) {
$media_key_list = array_keys($media_questions);
foreach ($new_question_list as &$question_id) {
if (in_array($question_id, $media_key_list)) {
$question_id = $media_questions[$question_id];
}
}
$new_question_list = array_flatten($new_question_list);
}
} else {
$new_question_list = $question_list;
}
}
return $new_question_list;
}
public function get_stat_track_exercise_info_by_exe_id($exe_id)
{
$track_exercises = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$exe_id = intval($exe_id);
$sql_track = "SELECT * FROM $track_exercises WHERE exe_id = $exe_id ";
$result = Database::query($sql_track);
$new_array = array();
if (Database::num_rows($result) > 0 ) {
$new_array = Database::fetch_array($result, 'ASSOC');
$new_array['duration'] = null;
$start_date = api_get_utc_datetime($new_array['start_date'], true);
$end_date = api_get_utc_datetime($new_array['exe_date'], true);
if (!empty($start_date) && !empty($end_date)) {
$start_date = api_strtotime($start_date, 'UTC');
$end_date = api_strtotime($end_date, 'UTC');
if ($start_date && $end_date) {
$mytime = $end_date- $start_date;
$new_learnpath_item = new learnpathItem(null);
$time_attemp = $new_learnpath_item->get_scorm_time('js', $mytime);
$h = get_lang('h');
$time_attemp = str_replace('NaN', '00' . $h . '00\'00"', $time_attemp);
$new_array['duration'] = $time_attemp;
}
}
}
return $new_array;
}
public function edit_question_to_remind($exe_id, $question_id, $action = 'add')
{
$exercise_info = self::get_stat_track_exercise_info_by_exe_id($exe_id);
$question_id = intval($question_id);
$exe_id = intval($exe_id);
$track_exercises = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
if ($exercise_info) {
if (empty($exercise_info['questions_to_check'])) {
if ($action == 'add') {
$sql = "UPDATE $track_exercises SET questions_to_check = '$question_id' WHERE exe_id = $exe_id ";
$result = Database::query($sql);
}
} else {
$remind_list = explode(',',$exercise_info['questions_to_check']);
$remind_list_string = '';
if ($action == 'add') {
if (!in_array($question_id, $remind_list)) {
$remind_list[] = $question_id;
if (!empty($remind_list)) {
sort($remind_list);
array_filter($remind_list);
}
$remind_list_string = implode(',', $remind_list);
}
} elseif ($action == 'delete') {
if (!empty($remind_list)) {
if (in_array($question_id, $remind_list)) {
$remind_list = array_flip($remind_list);
unset($remind_list[$question_id]);
$remind_list = array_flip($remind_list);
if (!empty($remind_list)) {
sort($remind_list);
array_filter($remind_list);
$remind_list_string = implode(',', $remind_list);
}
}
}
}
$remind_list_string = Database::escape_string($remind_list_string);
$sql = "UPDATE $track_exercises SET questions_to_check = '$remind_list_string' WHERE exe_id = $exe_id ";
Database::query($sql);
}
}
}
public function fill_in_blank_answer_to_array($answer)
{
api_preg_match_all('/\[[^]]+\]/', $answer, $teacher_answer_list);
$teacher_answer_list = $teacher_answer_list[0];
return $teacher_answer_list;
}
public function fill_in_blank_answer_to_string($answer)
{
$teacher_answer_list = $this->fill_in_blank_answer_to_array($answer);
$result = '';
if (!empty($teacher_answer_list)) {
$i = 0;
foreach ($teacher_answer_list as $teacher_item) {
$value = null;
//Cleaning student answer list
$value = strip_tags($teacher_item);
$value = api_substr($value, 1, api_strlen($value) - 2);
$value = explode('/', $value);
if (!empty($value[0])) {
$value = trim($value[0]);
$value = str_replace('&nbsp;', '', $value);
$result .= $value;
}
}
}
return $result;
}
function return_time_left_div()
{
$html = '<div id="clock_warning" style="display:none">';
$html .= Display::return_message(
get_lang('ReachedTimeLimit'),
'warning'
);
$html .= ' ';
$html .= sprintf(
get_lang('YouWillBeRedirectedInXSeconds'),
'<span id="counter_to_redirect" class="red_alert"></span>'
);
$html .= '</div>';
$html .= '<div id="exercise_clock_warning" class="well count_down"></div>';
return $html;
}
function get_count_question_list()
{
//Real question count
$question_count = 0;
$question_list = $this->get_question_list();
if (!empty($question_list)) {
$question_count = count($question_list);
}
return $question_count;
}
function get_exercise_list_ordered()
{
$table_exercise_order = Database::get_course_table(TABLE_QUIZ_ORDER);
$course_id = api_get_course_int_id();
$session_id = api_get_session_id();
$sql = "SELECT exercise_id, exercise_order FROM $table_exercise_order WHERE c_id = $course_id AND session_id = $session_id ORDER BY exercise_order";
$result = Database::query($sql);
$list = array();
if (Database::num_rows($result)) {
while ($row = Database::fetch_array($result, 'ASSOC')) {
$list[$row['exercise_order']] = $row['exercise_id'];
}
}
return $list;
}
/**
* Calculate the max_score of the quiz, depending of question inside, and quiz advanced option
*/
public function get_max_score()
{
$out_max_score = 0;
$tab_question_list = $this->selectQuestionList(true); // list of question's id !!! the array key start at 1 !!!
// test is randomQuestions - see field random of test
if ($this->random > 0 && $this->randomByCat == 0) {
$nb_random_questions = $this->random;
$tab_questions_score = array();
for ($i = 1; $i <= count($tab_question_list); $i++) {
$tmpobj_question = Question::read($tab_question_list[$i]);
$tab_questions_score[] = $tmpobj_question->weighting;
}
rsort($tab_questions_score);
// add the first $nb_random_questions value of score array to get max_score
for ($i = 0; $i < min($nb_random_questions, count($tab_questions_score)); $i++) {
$out_max_score += $tab_questions_score[$i];
}
}
// test is random by category
// get the $nb_random_questions best score question of each category
else if ($this->random > 0 && $this->randomByCat > 0) {
$nb_random_questions = $this->random;
$tab_categories_scores = array();
for ($i = 1; $i <= count($tab_question_list); $i++) {
$question_category_id = TestCategory::getCategoryForQuestion($tab_question_list[$i]);
if (!is_array($tab_categories_scores[$question_category_id])) {
$tab_categories_scores[$question_category_id] = array();
}
$tmpobj_question = Question::read($tab_question_list[$i]);
$tab_categories_scores[$question_category_id][] = $tmpobj_question->weighting;
}
// here we've got an array with first key, the category_id, second key, score of question for this cat
while (list($key, $tab_scores) = each($tab_categories_scores)) {
rsort($tab_scores);
for ($i = 0; $i < min($nb_random_questions, count($tab_scores)); $i++) {
$out_max_score += $tab_scores[$i];
}
}
}
// standart test, just add each question score
else {
for ($i = 1; $i <= count($tab_question_list); $i++) {
$tmpobj_question = Question::read($tab_question_list[$i]);
$out_max_score += $tmpobj_question->weighting;
}
}
return $out_max_score;
}
/**
* @return string
*/
public function get_formated_title()
{
return api_html_entity_decode($this->selectTitle());
}
/**
* @param $in_title
* @return string
*/
public static function get_formated_title_variable($in_title)
{
return api_html_entity_decode($in_title);
}
/**
* @return string
*/
public function format_title()
{
return api_htmlentities($this->title);
}
/**
* @param $in_title
* @return string
*/
public static function format_title_variable($in_title)
{
return api_htmlentities($in_title);
}
/**
* @param int $courseId
* @param int $sessionId
* @return array exercises
*/
public function getExercisesByCouseSession($courseId, $sessionId)
{
$courseId = intval($courseId);
$sessionId = intval($sessionId);
$tbl_quiz = Database::get_course_table(TABLE_QUIZ_TEST);
$sql = "SELECT * FROM $tbl_quiz cq
WHERE
cq.c_id = %s AND
(cq.session_id = %s OR cq.session_id = 0) AND
cq.active = 0
ORDER BY cq.id";
$sql = sprintf($sql, $courseId, $sessionId);
$result = Database::query($sql);
$rows = array();
while ($row = Database::fetch_array($result, 'ASSOC')) {
$rows[] = $row;
}
return $rows;
}
/**
*
* @param int $courseId
* @param int $sessionId
* @param array $quizId
* @return array exercises
*/
public function getExerciseAndResult($courseId, $sessionId, $quizId = array())
{
if (empty($quizId)) {
return array();
}
$sessionId = intval($sessionId);
$ids = is_array($quizId) ? $quizId : array($quizId);
$ids = array_map('intval', $ids);
$ids = implode(',', $ids);
$track_exercises = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
if ($sessionId != 0) {
$sql = "SELECT * FROM $track_exercises te
INNER JOIN c_quiz cq ON cq.id = te.exe_exo_id AND te.c_id = cq.c_id
WHERE
te.id = %s AND
te.session_id = %s AND
cq.id IN (%s)
ORDER BY cq.id";
$sql = sprintf($sql, $courseId, $sessionId, $ids);
} else {
$sql = "SELECT * FROM $track_exercises te
INNER JOIN c_quiz cq ON cq.id = te.exe_exo_id AND te.c_id = cq.c_id
WHERE
te.id = %s AND
cq.id IN (%s)
ORDER BY cq.id";
$sql = sprintf($sql, $courseId, $ids);
}
$result = Database::query($sql);
$rows = array();
while ($row = Database::fetch_array($result, 'ASSOC')) {
$rows[] = $row;
}
return $rows;
}
}