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- <?php
- /* For licensing terms, see /license.txt */
- /**
- * File containing the Question class.
- * @package chamilo.exercise
- * @author Olivier Brouckaert
- * @author Julio Montoya <gugli100@gmail.com> lot of bug fixes
- * Modified by hubert.borderiou@grenet.fr - add question categories
- */
- /**
- * Code
- */
- // Question types
- define('UNIQUE_ANSWER', 1);
- define('MULTIPLE_ANSWER', 2);
- define('FILL_IN_BLANKS', 3);
- define('MATCHING', 4);
- define('FREE_ANSWER', 5);
- define('HOT_SPOT', 6);
- define('HOT_SPOT_ORDER', 7);
- define('HOT_SPOT_DELINEATION', 8);
- define('MULTIPLE_ANSWER_COMBINATION', 9);
- define('UNIQUE_ANSWER_NO_OPTION', 10);
- define('MULTIPLE_ANSWER_TRUE_FALSE', 11);
- define('MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE', 12);
- define('ORAL_EXPRESSION', 13);
- define('GLOBAL_MULTIPLE_ANSWER', 14);
- define('MEDIA_QUESTION', 15);
- define('UNIQUE_ANSWER_IMAGE', 16);
- define('DRAGGABLE', 17);
- //Some alias used in the QTI exports
- define('MCUA', 1);
- define('TF', 1);
- define('MCMA', 2);
- define('FIB', 3);
- /**
- * QUESTION CLASS
- *
- * This class allows to instantiate an object of type Question
- *
- * @author Olivier Brouckaert, original author
- * @author Patrick Cool, LaTeX support
- * @package chamilo.exercise
- */
- abstract class Question
- {
- public $id;
- public $question;
- public $description;
- public $weighting;
- public $position;
- public $type;
- public $level;
- public $picture;
- public $exerciseList; // array with the list of exercises which this question is in
- public $category_list;
- public $parent_id;
- private $isContent;
- public $course;
- static $typePicture = 'new_question.png';
- static $explanationLangVar = '';
- public $question_table_class = 'table table-striped';
- public $editionMode = 'normal';
- static $questionTypes = array(
- UNIQUE_ANSWER => array('unique_answer.class.php', 'UniqueAnswer'),
- MULTIPLE_ANSWER => array('multiple_answer.class.php', 'MultipleAnswer'),
- FILL_IN_BLANKS => array('fill_blanks.class.php', 'FillBlanks'),
- MATCHING => array('matching.class.php', 'Matching'),
- FREE_ANSWER => array('freeanswer.class.php', 'FreeAnswer'),
- ORAL_EXPRESSION => array('oral_expression.class.php', 'OralExpression'),
- HOT_SPOT => array('hotspot.class.php', 'HotSpot'),
- HOT_SPOT_DELINEATION => array('hotspot.class.php', 'HotspotDelineation'),
- MULTIPLE_ANSWER_COMBINATION => array('multiple_answer_combination.class.php', 'MultipleAnswerCombination'),
- UNIQUE_ANSWER_NO_OPTION => array('unique_answer_no_option.class.php', 'UniqueAnswerNoOption'),
- MULTIPLE_ANSWER_TRUE_FALSE => array('multiple_answer_true_false.class.php', 'MultipleAnswerTrueFalse'),
- MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE => array(
- 'multiple_answer_combination_true_false.class.php',
- 'MultipleAnswerCombinationTrueFalse'
- ),
- GLOBAL_MULTIPLE_ANSWER => array('global_multiple_answer.class.php', 'GlobalMultipleAnswer'),
- MEDIA_QUESTION => array('media_question.class.php', 'MediaQuestion'),
- UNIQUE_ANSWER_IMAGE => array('unique_answer_image.class.php', 'UniqueAnswerImage'),
- DRAGGABLE => array('draggable.class.php', 'Draggable')
- );
- /**
- * constructor of the class
- *
- * @author - Olivier Brouckaert
- */
- public function Question()
- {
- $this->id = 0;
- $this->question = '';
- $this->description = '';
- $this->weighting = 0;
- $this->position = 1;
- $this->picture = '';
- $this->level = 1;
- $this->extra = ''; // This variable is used when loading an exercise like an scenario with an special hotspot: final_overlap, final_missing, final_excess
- $this->exerciseList = array();
- $this->course = api_get_course_info();
- $this->category_list = array();
- $this->parent_id = 0;
- $this->editionMode = 'normal';
- }
- public function getIsContent()
- {
- $isContent = null;
- if (isset($_REQUEST['isContent'])) {
- $isContent = intval($_REQUEST['isContent']);
- }
- return $this->isContent = $isContent;
- }
- public function readByTitle($title, $course_id = null) {
- if (!empty($course_id)) {
- $course_info = api_get_course_info_by_id($course_id);
- } else {
- $course_info = api_get_course_info();
- }
- $course_id = $course_info['real_id'];
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $title = Database::escape_string($title);
- $sql = "SELECT iid FROM $TBL_QUESTIONS WHERE question = '$title' AND c_id = $course_id ";
- $result = Database::query($sql);
- if (Database::num_rows($result)) {
- $row = Database::fetch_array($result);
- return self::read($row['iid'], $course_id);
- }
- return false;
- }
- /**
- * Reads question informations from the data base
- *
- * @author - Olivier Brouckaert
- * @param - integer $id - question ID
- * @return - boolean - true if question exists, otherwise false
- */
- static function read($id, $course_id = null)
- {
- $id = intval($id);
- if (!empty($course_id)) {
- $course_info = api_get_course_info_by_id($course_id);
- } else {
- $course_info = api_get_course_info();
- }
- $course_id = $course_info['real_id'];
- if (empty($course_id) || $course_id == -1) {
- return false;
- }
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $sql = "SELECT * FROM $TBL_QUESTIONS WHERE iid = $id ";
- $result = Database::query($sql);
- // if the question has been found
- if ($object = Database::fetch_object($result)) {
- $objQuestion = Question::getInstance($object->type);
- if (!empty($objQuestion)) {
- $objQuestion->id = $id;
- $objQuestion->question = $object->question;
- $objQuestion->description = $object->description;
- $objQuestion->weighting = $object->ponderation;
- $objQuestion->position = $object->position;
- $objQuestion->type = $object->type;
- $objQuestion->picture = $object->picture;
- $objQuestion->level = (int)$object->level;
- $objQuestion->extra = $object->extra;
- $objQuestion->course = $course_info;
- $objQuestion->parent_id = $object->parent_id;
- $objQuestion->category_list = Testcategory::getCategoryForQuestion($id);
- $sql = "SELECT exercice_id FROM $TBL_EXERCICE_QUESTION WHERE c_id = $course_id AND question_id = $id";
- $result_exercise_list = Database::query($sql);
- // fills the array with the exercises which this question is in
- if ($result_exercise_list) {
- while ($obj = Database::fetch_object($result_exercise_list)) {
- $objQuestion->exerciseList[] = $obj->exercice_id;
- }
- }
- return $objQuestion;
- }
- }
- // question not found
- return false;
- }
- public function setEditionMode($mode)
- {
- $this->editionMode = $mode;
- }
- public function getEditionMode()
- {
- return $this->editionMode;
- }
- /**
- * returns the question ID
- *
- * @author - Olivier Brouckaert
- * @return - integer - question ID
- */
- function selectId()
- {
- return $this->id;
- }
- /**
- * returns the question title
- *
- * @author - Olivier Brouckaert
- * @return - string - question title
- */
- function selectTitle()
- {
- return $this->question;
- }
- /**
- * returns the question description
- *
- * @author - Olivier Brouckaert
- * @return - string - question description
- */
- function selectDescription()
- {
- $this->description = $this->description;
- return $this->description;
- }
- /**
- * returns the question weighting
- *
- * @author - Olivier Brouckaert
- * @return - integer - question weighting
- */
- function selectWeighting()
- {
- return $this->weighting;
- }
- /**
- * returns the question position
- *
- * @author - Olivier Brouckaert
- * @return - integer - question position
- */
- function selectPosition()
- {
- return $this->position;
- }
- /**
- * returns the answer type
- *
- * @author - Olivier Brouckaert
- * @return - integer - answer type
- */
- function selectType()
- {
- return $this->type;
- }
- /**
- * returns the level of the question
- *
- * @author - Nicolas Raynaud
- * @return - integer - level of the question, 0 by default.
- */
- function selectLevel()
- {
- return $this->level;
- }
- /**
- * returns the picture name
- *
- * @author - Olivier Brouckaert
- * @return - string - picture name
- */
- function selectPicture()
- {
- return $this->picture;
- }
- function selectPicturePath()
- {
- if (!empty($this->picture)) {
- return api_get_path(WEB_COURSE_PATH).$this->course['path'].'/document/images/'.$this->picture;
- }
- return false;
- }
- /**
- * returns the array with the exercise ID list
- *
- * @author - Olivier Brouckaert
- * @return - array - list of exercise ID which the question is in
- */
- function selectExerciseList()
- {
- return $this->exerciseList;
- }
- /**
- * returns the number of exercises which this question is in
- *
- * @author - Olivier Brouckaert
- * @return - integer - number of exercises
- */
- function selectNbrExercises()
- {
- return sizeof($this->exerciseList);
- }
- function updateCourse($course_id) {
- $this->course = api_get_course_info_by_id($course_id);
- }
- /**
- * changes the question title
- *
- * @author - Olivier Brouckaert
- * @param - string $title - question title
- */
- function updateTitle($title)
- {
- $this->question = $title;
- }
- function updateParentId($id)
- {
- $this->parent_id = intval($id);
- }
- /**
- * changes the question description
- *
- * @author - Olivier Brouckaert
- * @param - string $description - question description
- */
- function updateDescription($description)
- {
- $this->description = $description;
- }
- /**
- * changes the question weighting
- *
- * @author - Olivier Brouckaert
- * @param - integer $weighting - question weighting
- */
- function updateWeighting($weighting)
- {
- $this->weighting = $weighting;
- }
- /**
- * @author - Hubert Borderiou 12-10-2011
- * @param - array of category $in_category
- */
- function updateCategory($category_list)
- {
- $this->category_list = $category_list;
- }
- /**
- * @author - Hubert Borderiou 12-10-2011
- * @param - interger $in_positive
- */
- function updateScoreAlwaysPositive($in_positive)
- {
- $this->scoreAlwaysPositive = $in_positive;
- }
- /**
- * @author - Hubert Borderiou 12-10-2011
- * @param - interger $in_positive
- */
- function updateUncheckedMayScore($in_positive)
- {
- $this->uncheckedMayScore = $in_positive;
- }
- /**
- * Save category of a question
- *
- * A question can have n categories
- * if category is empty, then question has no category then delete the category entry
- *
- * @param - int $in_positive
- * @author - Julio Montoya - Adding multiple cat support
- */
- function saveCategories($category_list) {
- $course_id = $this->course['real_id'];
- if (!empty($category_list)) {
- $this->deleteCategory();
- $TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
- $category_list = array_filter($category_list);
- // update or add category for a question
- foreach ($category_list as $category_id) {
- if (empty($category_id)) {
- continue;
- }
- $category_id = intval($category_id);
- $question_id = Database::escape_string($this->id);
- $sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY WHERE category_id = $category_id AND question_id = $question_id AND c_id=".$course_id;
- $res = Database::query($sql);
- $row = Database::fetch_array($res);
- if ($row['nb'] > 0) {
- //DO nothing
- //$sql = "UPDATE $TBL_QUESTION_REL_CATEGORY SET category_id = $category_id WHERE question_id=$question_id AND c_id=".api_get_course_int_id();
- //$res = Database::query($sql);
- } else {
- $sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY (c_id, question_id, category_id) VALUES (".$course_id.", $question_id, $category_id)";
- $res = Database::query($sql);
- }
- }
- }
- }
- /**
- * @author - Hubert Borderiou 12-10-2011
- * @param - interger $in_positive
- * in this version, a question can only have 1 category
- * if category is 0, then question has no category then delete the category entry
- */
- function saveCategory($in_category)
- {
- if ($in_category <= 0) {
- $this->deleteCategory();
- } else {
- // update or add category for a question
- $TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
- $category_id = Database::escape_string($in_category);
- $question_id = Database::escape_string($this->id);
- $sql = "SELECT count(*) AS nb FROM $TBL_QUESTION_REL_CATEGORY WHERE question_id= $question_id AND c_id=".api_get_course_int_id();
- $res = Database::query($sql);
- $row = Database::fetch_array($res);
- if ($row['nb'] > 0) {
- $sql = "UPDATE $TBL_QUESTION_REL_CATEGORY SET category_id= $category_id WHERE question_id=$question_id AND c_id=".api_get_course_int_id();
- $res = Database::query($sql);
- } else {
- $sql = "INSERT INTO $TBL_QUESTION_REL_CATEGORY VALUES (".api_get_course_int_id().", $question_id, $category_id)";
- $res = Database::query($sql);
- }
- }
- }
- /**
- * @author hubert borderiou 12-10-2011
- * delete any category entry for question id
- * @param : none
- * delte the category for question
- */
- function deleteCategory() {
- $course_id = $this->course['real_id'];
- $TBL_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
- $question_id = Database::escape_string($this->id);
- $sql = "DELETE FROM $TBL_QUESTION_REL_CATEGORY WHERE question_id = $question_id AND c_id = ".$course_id;
- Database::query($sql);
- }
- /**
- * changes the question position
- *
- * @author - Olivier Brouckaert
- * @param - integer $position - question position
- */
- function updatePosition($position)
- {
- $this->position = $position;
- }
- /**
- * changes the question level
- *
- * @author - Nicolas Raynaud
- * @param - integer $level - question level
- */
- function updateLevel($level)
- {
- $this->level = $level;
- }
- /**
- * changes the answer type. If the user changes the type from "unique answer" to "multiple answers"
- * (or conversely) answers are not deleted, otherwise yes
- *
- * @author - Olivier Brouckaert
- * @param - integer $type - answer type
- */
- function updateType($type)
- {
- $TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER);
- $course_id = $this->course['real_id'];
- if (empty($course_id)) {
- $course_id = api_get_course_int_id();
- }
- // if we really change the type
- if ($type != $this->type) {
- // if we don't change from "unique answer" to "multiple answers" (or conversely)
- if (!in_array($this->type, array(UNIQUE_ANSWER, MULTIPLE_ANSWER)) || !in_array(
- $type,
- array(UNIQUE_ANSWER, MULTIPLE_ANSWER)
- )
- ) {
- // removes old answers
- $sql = "DELETE FROM $TBL_REPONSES WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $this->id
- )."'";
- Database::query($sql);
- }
- $this->type = $type;
- }
- }
- /**
- * adds a picture to the question
- *
- * @author - Olivier Brouckaert
- * @param - string $Picture - temporary path of the picture to upload
- * @param - string $PictureName - Name of the picture
- * @return - boolean - true if uploaded, otherwise false
- */
- function uploadPicture($Picture, $PictureName, $picturePath = null)
- {
- if (empty($picturePath)) {
- global $picturePath;
- }
- if (!file_exists($picturePath)) {
- if (mkdir($picturePath, api_get_permissions_for_new_directories())) {
- // document path
- $documentPath = api_get_path(SYS_COURSE_PATH).$this->course['path']."/document";
- $path = str_replace($documentPath, '', $picturePath);
- $title_path = basename($picturePath);
- $doc_id = FileManager::add_document($this->course, $path, 'folder', 0, $title_path);
- api_item_property_update($this->course, TOOL_DOCUMENT, $doc_id, 'FolderCreated', api_get_user_id());
- }
- }
- // if the question has got an ID
- if ($this->id) {
- $extension = pathinfo($PictureName, PATHINFO_EXTENSION);
- $this->picture = 'quiz-'.$this->id.'.jpg';
- $o_img = new Image($Picture);
- $o_img->send_image($picturePath.'/'.$this->picture, -1, 'jpg');
- $document_id = FileManager::add_document(
- $this->course,
- '/images/'.$this->picture,
- 'file',
- filesize($picturePath.'/'.$this->picture),
- $this->picture
- );
- if ($document_id) {
- return api_item_property_update(
- $this->course,
- TOOL_DOCUMENT,
- $document_id,
- 'DocumentAdded',
- api_get_user_id()
- );
- }
- }
- return false;
- }
- /**
- * Resizes a picture || Warning!: can only be called after uploadPicture, or if picture is already available in object.
- *
- * @author - Toon Keppens
- * @param - string $Dimension - Resizing happens proportional according to given dimension: height|width|any
- * @param - integer $Max - Maximum size
- * @return - boolean - true if success, false if failed
- */
- function resizePicture($Dimension, $Max)
- {
- global $picturePath;
- // if the question has an ID
- if ($this->id) {
- // Get dimensions from current image.
- $my_image = new Image($picturePath.'/'.$this->picture);
- $current_image_size = $my_image->get_image_size();
- $current_width = $current_image_size['width'];
- $current_height = $current_image_size['height'];
- if ($current_width < $Max && $current_height < $Max) {
- return true;
- } elseif ($current_height == "") {
- return false;
- }
- // Resize according to height.
- if ($Dimension == "height") {
- $resize_scale = $current_height / $Max;
- $new_height = $Max;
- $new_width = ceil($current_width / $resize_scale);
- }
- // Resize according to width
- if ($Dimension == "width") {
- $resize_scale = $current_width / $Max;
- $new_width = $Max;
- $new_height = ceil($current_height / $resize_scale);
- }
- // Resize according to height or width, both should not be larger than $Max after resizing.
- if ($Dimension == "any") {
- if ($current_height > $current_width || $current_height == $current_width) {
- $resize_scale = $current_height / $Max;
- $new_height = $Max;
- $new_width = ceil($current_width / $resize_scale);
- }
- if ($current_height < $current_width) {
- $resize_scale = $current_width / $Max;
- $new_width = $Max;
- $new_height = ceil($current_height / $resize_scale);
- }
- }
- $my_image->resize($new_width, $new_height);
- $result = $my_image->send_image($picturePath.'/'.$this->picture);
- if ($result) {
- return true;
- } else {
- return false;
- }
- }
- }
- /**
- * deletes the picture
- *
- * @author - Olivier Brouckaert
- * @return - boolean - true if removed, otherwise false
- */
- function removePicture()
- {
- global $picturePath;
- // if the question has got an ID and if the picture exists
- if ($this->id) {
- $picture = $this->picture;
- $this->picture = '';
- return @unlink($picturePath.'/'.$picture) ? true : false;
- }
- return false;
- }
- /**
- * Exports a picture to another question
- *
- * @author - Olivier Brouckaert
- * @param - integer $questionId - ID of the target question
- * @return - boolean - true if copied, otherwise false
- */
- function exportPicture($questionId, $course_info)
- {
- $course_id = $course_info['real_id'];
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $destination_path = api_get_path(SYS_COURSE_PATH).$course_info['path'].'/document/images';
- $source_path = api_get_path(SYS_COURSE_PATH).$this->course['path'].'/document/images';
- // if the question has got an ID and if the picture exists
- if ($this->id && !empty($this->picture)) {
- $picture = explode('.', $this->picture);
- $extension = $picture[sizeof($picture) - 1];
- $picture = 'quiz-'.$questionId.'.'.$extension;
- $result = @copy($source_path.'/'.$this->picture, $destination_path.'/'.$picture) ? true : false;
- //If copy was correct then add to the database
- if ($result) {
- $sql = "UPDATE $TBL_QUESTIONS SET picture='".Database::escape_string(
- $picture
- )."' WHERE c_id = $course_id AND id='".intval($questionId)."'";
- Database::query($sql);
- $document_id = FileManager::add_document(
- $course_info,
- '/images/'.$picture,
- 'file',
- filesize($destination_path.'/'.$picture),
- $picture
- );
- if ($document_id) {
- return api_item_property_update(
- $course_info,
- TOOL_DOCUMENT,
- $document_id,
- 'DocumentAdded',
- api_get_user_id()
- );
- }
- }
- return $result;
- }
- return false;
- }
- /**
- * Saves the picture coming from POST into a temporary file
- * Temporary pictures are used when we don't want to save a picture right after a form submission.
- * For example, if we first show a confirmation box.
- *
- * @author - Olivier Brouckaert
- * @param - string $Picture - temporary path of the picture to move
- * @param - string $PictureName - Name of the picture
- */
- function setTmpPicture($Picture, $PictureName)
- {
- global $picturePath;
- $PictureName = explode('.', $PictureName);
- $Extension = $PictureName[sizeof($PictureName) - 1];
- // saves the picture into a temporary file
- @move_uploaded_file($Picture, $picturePath.'/tmp.'.$Extension);
- }
- /**
- Sets the title
- */
- public function setTitle($title)
- {
- $this->question = $title;
- }
- /**
- Sets the title
- */
- public function setExtra($extra)
- {
- $this->extra = $extra;
- }
- /**
- * Moves the temporary question "tmp" to "quiz-$questionId"
- * Temporary pictures are used when we don't want to save a picture right after a form submission.
- * For example, if we first show a confirmation box.
- *
- * @author - Olivier Brouckaert
- * @return - boolean - true if moved, otherwise false
- */
- function getTmpPicture()
- {
- global $picturePath;
- // if the question has got an ID and if the picture exists
- if ($this->id) {
- if (file_exists($picturePath.'/tmp.jpg')) {
- $Extension = 'jpg';
- } elseif (file_exists($picturePath.'/tmp.gif')) {
- $Extension = 'gif';
- } elseif (file_exists($picturePath.'/tmp.png')) {
- $Extension = 'png';
- }
- $this->picture = 'quiz-'.$this->id.'.'.$Extension;
- return @rename($picturePath.'/tmp.'.$Extension, $picturePath.'/'.$this->picture) ? true : false;
- }
- return false;
- }
- /**
- * updates the question in the data base
- * if an exercise ID is provided, we add that exercise ID into the exercise list
- *
- * @author - Olivier Brouckaert
- * @param - integer $exerciseId - exercise ID if saving in an exercise
- */
- function save($exerciseId = 0)
- {
- $TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $id = $this->id;
- $question = $this->question;
- $description = $this->description;
- $weighting = $this->weighting;
- $position = $this->position;
- $type = $this->type;
- $picture = $this->picture;
- $level = $this->level;
- $extra = $this->extra;
- $c_id = $this->course['real_id'];
- $category_list = $this->category_list;
- // Question already exists
- if (!empty($id)) {
- $sql = "UPDATE $TBL_QUESTIONS SET
- question ='".Database::escape_string($question)."',
- description ='".Database::escape_string($description)."',
- ponderation ='".Database::escape_string($weighting)."',
- position ='".Database::escape_string($position)."',
- type ='".Database::escape_string($type)."',
- picture ='".Database::escape_string($picture)."',
- extra ='".Database::escape_string($extra)."',
- level ='".Database::escape_string($level)."',
- parent_id = ".$this->parent_id."
- WHERE iid = '".Database::escape_string($id)."'";
- Database::query($sql);
- $this->saveCategories($category_list);
- if (!empty($exerciseId)) {
- api_item_property_update($this->course, TOOL_QUIZ, $id, 'QuizQuestionUpdated', api_get_user_id());
- }
- if (api_get_setting('search_enabled') == 'true') {
- if ($exerciseId != 0) {
- $this->search_engine_edit($exerciseId);
- }
- }
- } else {
- // Creates a new question
- $sql = "SELECT max(position) FROM $TBL_QUESTIONS as question, $TBL_EXERCICE_QUESTION as test_question
- WHERE question.id = test_question.question_id AND
- test_question.exercice_id = '".Database::escape_string($exerciseId)."' AND
- question.c_id = $c_id AND
- test_question.c_id = $c_id ";
- $result = Database::query($sql);
- $current_position = Database::result($result, 0, 0);
- $this->updatePosition($current_position + 1);
- $position = $this->position;
- $sql = "INSERT INTO $TBL_QUESTIONS (c_id, question, description, ponderation, position, type, picture, extra, level, parent_id) VALUES ( ".
- " $c_id, ".
- " '".Database::escape_string($question)."', ".
- " '".Database::escape_string($description)."', ".
- " '".Database::escape_string($weighting)."', ".
- " '".Database::escape_string($position)."', ".
- " '".Database::escape_string($type)."', ".
- " '".Database::escape_string($picture)."', ".
- " '".Database::escape_string($extra)."', ".
- " '".Database::escape_string($level)."', ".
- " '".$this->parent_id."' ".
- " )";
- Database::query($sql);
- $this->id = Database::insert_id();
- api_item_property_update($this->course, TOOL_QUIZ, $this->id, 'QuizQuestionAdded', api_get_user_id());
- // If hotspot, create first answer
- if ($type == HOT_SPOT || $type == HOT_SPOT_ORDER) {
- $TBL_ANSWERS = Database::get_course_table(TABLE_QUIZ_ANSWER);
- $sql = "INSERT INTO $TBL_ANSWERS (c_id, question_id , answer , correct , comment , ponderation , position , hotspot_coordinates , hotspot_type )
- VALUES (".$c_id.", '".Database::escape_string($this->id)."', '', NULL , '', '10' , '1', '0;0|0|0', 'square')";
- Database::query($sql);
- }
- if ($type == HOT_SPOT_DELINEATION) {
- $TBL_ANSWERS = Database::get_course_table(TABLE_QUIZ_ANSWER);
- $sql = "INSERT INTO $TBL_ANSWERS (c_id, question_id , answer , correct , comment , ponderation , position , hotspot_coordinates , hotspot_type )
- VALUES (".$c_id.", '".Database::escape_string($this->id)."', '', NULL , '', '10' , '1', '0;0|0|0', 'delineation')";
- Database::query($sql);
- }
- if (api_get_setting('search_enabled') == 'true') {
- if ($exerciseId != 0) {
- $this->search_engine_edit($exerciseId, true);
- } else {
- /**
- * actually there is *not* an user interface for
- * creating questions without a relation with an exercise
- */
- }
- }
- }
- // if the question is created in an exercise
- if ($exerciseId) {
- // adds the exercise into the exercise list of this question
- $this->addToList($exerciseId, true);
- }
- }
- function search_engine_edit($exerciseId, $addQs = false, $rmQs = false)
- {
- // update search engine and its values table if enabled
- if (api_get_setting('search_enabled') == 'true' && extension_loaded('xapian')) {
- $course_id = api_get_course_id();
- // get search_did
- $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
- if ($addQs || $rmQs) {
- //there's only one row per question on normal db and one document per question on search engine db
- $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_second_level=%s LIMIT 1';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
- } else {
- $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%s LIMIT 1';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $exerciseId, $this->id);
- }
- $res = Database::query($sql);
- if (Database::num_rows($res) > 0 || $addQs) {
- require_once(api_get_path(LIBRARY_PATH).'search/ChamiloIndexer.class.php');
- require_once(api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php');
- $di = new ChamiloIndexer();
- if ($addQs) {
- $question_exercises = array((int)$exerciseId);
- } else {
- $question_exercises = array();
- }
- isset($_POST['language']) ? $lang = Database::escape_string($_POST['language']) : $lang = 'english';
- $di->connectDb(null, null, $lang);
- // retrieve others exercise ids
- $se_ref = Database::fetch_array($res);
- $se_doc = $di->get_document((int)$se_ref['search_did']);
- if ($se_doc !== false) {
- if (($se_doc_data = $di->get_document_data($se_doc)) !== false) {
- $se_doc_data = unserialize($se_doc_data);
- if (isset($se_doc_data[SE_DATA]['type']) && $se_doc_data[SE_DATA]['type'] == SE_DOCTYPE_EXERCISE_QUESTION) {
- if (isset($se_doc_data[SE_DATA]['exercise_ids']) && is_array(
- $se_doc_data[SE_DATA]['exercise_ids']
- )
- ) {
- foreach ($se_doc_data[SE_DATA]['exercise_ids'] as $old_value) {
- if (!in_array($old_value, $question_exercises)) {
- $question_exercises[] = $old_value;
- }
- }
- }
- }
- }
- }
- if ($rmQs) {
- while (($key = array_search($exerciseId, $question_exercises)) !== false) {
- unset($question_exercises[$key]);
- }
- }
- // build the chunk to index
- $ic_slide = new IndexableChunk();
- $ic_slide->addValue("title", $this->question);
- $ic_slide->addCourseId($course_id);
- $ic_slide->addToolId(TOOL_QUIZ);
- $xapian_data = array(
- SE_COURSE_ID => $course_id,
- SE_TOOL_ID => TOOL_QUIZ,
- SE_DATA => array(
- 'type' => SE_DOCTYPE_EXERCISE_QUESTION,
- 'exercise_ids' => $question_exercises,
- 'question_id' => (int)$this->id
- ),
- SE_USER => (int)api_get_user_id(),
- );
- $ic_slide->xapian_data = serialize($xapian_data);
- $ic_slide->addValue("content", $this->description);
- //TODO: index answers, see also form validation on question_admin.inc.php
- $di->remove_document((int)$se_ref['search_did']);
- $di->addChunk($ic_slide);
- //index and return search engine document id
- if (!empty($question_exercises)) { // if empty there is nothing to index
- $did = $di->index();
- unset($di);
- }
- if ($did || $rmQs) {
- // save it to db
- if ($addQs || $rmQs) {
- $sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_second_level=\'%s\'';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $this->id);
- } else {
- $sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=\'%s\' AND ref_id_second_level=\'%s\'';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $exerciseId, $this->id);
- }
- Database::query($sql);
- if ($rmQs) {
- if (!empty($question_exercises)) {
- $sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did)
- VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)';
- $sql = sprintf(
- $sql,
- $tbl_se_ref,
- $course_id,
- TOOL_QUIZ,
- array_shift($question_exercises),
- $this->id,
- $did
- );
- Database::query($sql);
- }
- } else {
- $sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, ref_id_second_level, search_did)
- VALUES (NULL , \'%s\', \'%s\', %s, %s, %s)';
- $sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_QUIZ, $exerciseId, $this->id, $did);
- Database::query($sql);
- }
- }
- }
- }
- }
- /**
- * adds an exercise into the exercise list
- *
- * @author - Olivier Brouckaert
- * @param - integer $exerciseId - exercise ID
- * @param - boolean $fromSave - comming from $this->save() or not
- */
- function addToList($exerciseId, $fromSave = false)
- {
- $TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $id = $this->id;
- // checks if the exercise ID is not in the list
- if (!in_array($exerciseId, $this->exerciseList)) {
- $this->exerciseList[] = $exerciseId;
- $new_exercise = new Exercise();
- $new_exercise->read($exerciseId);
- $count = $new_exercise->selectNbrQuestions();
- $count++;
- $sql = "INSERT INTO $TBL_EXERCICE_QUESTION (c_id, question_id, exercice_id, question_order) VALUES
- ({$this->course['real_id']}, '".Database::escape_string($id)."','".Database::escape_string(
- $exerciseId
- )."', '$count' )";
- Database::query($sql);
- // we do not want to reindex if we had just saved adnd indexed the question
- if (!$fromSave) {
- $this->search_engine_edit($exerciseId, true);
- }
- }
- }
- /**
- * removes an exercise from the exercise list
- *
- * @author - Olivier Brouckaert
- * @param - integer $exerciseId - exercise ID
- * @return - boolean - true if removed, otherwise false
- */
- function removeFromList($exerciseId)
- {
- $TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $id = $this->id;
- // searches the position of the exercise ID in the list
- $pos = array_search($exerciseId, $this->exerciseList);
- $course_id = api_get_course_int_id();
- // exercise not found
- if ($pos === false) {
- return false;
- } else {
- // deletes the position in the array containing the wanted exercise ID
- unset($this->exerciseList[$pos]);
- //update order of other elements
- $sql = "SELECT question_order FROM $TBL_EXERCICE_QUESTION WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $id
- )."' AND exercice_id='".Database::escape_string($exerciseId)."'";
- $res = Database::query($sql);
- if (Database::num_rows($res) > 0) {
- $row = Database::fetch_array($res);
- if (!empty($row['question_order'])) {
- $sql = "UPDATE $TBL_EXERCICE_QUESTION SET question_order = question_order-1
- WHERE c_id = $course_id AND exercice_id='".Database::escape_string(
- $exerciseId
- )."' AND question_order > ".$row['question_order'];
- $res = Database::query($sql);
- }
- }
- $sql = "DELETE FROM $TBL_EXERCICE_QUESTION WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $id
- )."' AND exercice_id='".Database::escape_string($exerciseId)."'";
- Database::query($sql);
- return true;
- }
- }
- /**
- * Deletes a question from the database
- * the parameter tells if the question is removed from all exercises (value = 0),
- * or just from one exercise (value = exercise ID)
- *
- * @author - Olivier Brouckaert
- * @param - integer $deleteFromEx - exercise ID if the question is only removed from one exercise
- */
- function delete($deleteFromEx = 0)
- {
- $course_id = api_get_course_int_id();
- $TBL_EXERCICE_QUESTION = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $TBL_REPONSES = Database::get_course_table(TABLE_QUIZ_ANSWER);
- $TBL_QUIZ_QUESTION_REL_CATEGORY = Database::get_course_table(TABLE_QUIZ_QUESTION_REL_CATEGORY);
- $id = $this->id;
- // if the question must be removed from all exercises
- if (!$deleteFromEx) {
- //update the question_order of each question to avoid inconsistencies
- $sql = "SELECT exercice_id, question_order FROM $TBL_EXERCICE_QUESTION WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $id
- )."'";
- $res = Database::query($sql);
- if (Database::num_rows($res) > 0) {
- while ($row = Database::fetch_array($res)) {
- if (!empty($row['question_order'])) {
- $sql = "UPDATE $TBL_EXERCICE_QUESTION
- SET question_order = question_order-1
- WHERE c_id = $course_id AND exercice_id='".Database::escape_string(
- $row['exercice_id']
- )."' AND question_order > ".$row['question_order'];
- Database::query($sql);
- }
- }
- }
- $sql = "DELETE FROM $TBL_EXERCICE_QUESTION WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $id
- )."'";
- Database::query($sql);
- $sql = "DELETE FROM $TBL_QUESTIONS WHERE c_id = $course_id AND id='".Database::escape_string($id)."'";
- Database::query($sql);
- $sql = "DELETE FROM $TBL_REPONSES WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $id
- )."'";
- Database::query($sql);
- // remove the category of this question in the question_rel_category table
- $sql = "DELETE FROM $TBL_QUIZ_QUESTION_REL_CATEGORY WHERE c_id = $course_id AND question_id='".Database::escape_string(
- $id
- )."' AND c_id=".api_get_course_int_id();
- Database::query($sql);
- api_item_property_update($this->course, TOOL_QUIZ, $id, 'QuizQuestionDeleted', api_get_user_id());
- $this->removePicture();
- // resets the object
- $this->Question();
- } else {
- // just removes the exercise from the list
- $this->removeFromList($deleteFromEx);
- if (api_get_setting('search_enabled') == 'true' && extension_loaded('xapian')) {
- // disassociate question with this exercise
- $this->search_engine_edit($deleteFromEx, false, true);
- }
- api_item_property_update($this->course, TOOL_QUIZ, $id, 'QuizQuestionDeleted', api_get_user_id());
- }
- }
- /**
- * Duplicates the question
- *
- * @author Olivier Brouckaert
- * @param array Course info of the destination course
- * @return int ID of the new question
- */
- function duplicate($course_info = null)
- {
- if (empty($course_info)) {
- $course_info = $this->course;
- } else {
- $course_info = $course_info;
- }
- $TBL_QUESTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $TBL_QUESTION_OPTIONS = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
- $question = $this->question;
- $description = $this->description;
- $weighting = $this->weighting;
- $position = $this->position;
- $type = $this->type;
- $level = intval($this->level);
- $extra = $this->extra;
- //Using the same method used in the course copy to transform URLs
- if ($this->course['id'] != $course_info['id']) {
- $description = DocumentManager::replace_urls_inside_content_html_from_copy_course(
- $description,
- $this->course['id'],
- $course_info['id']
- );
- $question = DocumentManager::replace_urls_inside_content_html_from_copy_course(
- $question,
- $this->course['id'],
- $course_info['id']
- );
- }
- $course_id = $course_info['real_id'];
- //Read the source options
- $options = self::readQuestionOption($this->id, $this->course['real_id']);
- //Inserting in the new course db / or the same course db
- $params = array(
- 'c_id' => $course_id,
- 'question' => $question,
- 'description' => $description,
- 'ponderation' => $this->weighting,
- 'position' => $this->position,
- 'type' => $this->type,
- 'level' => $this->level,
- 'extra' => $this->extra,
- 'parent_id' => $this->parent_id,
- );
- $new_question_id = Database::insert($TBL_QUESTIONS, $params);
- if (!empty($options)) {
- //Saving the quiz_options
- foreach ($options as $item) {
- $item['question_id'] = $new_question_id;
- $item['c_id'] = $course_id;
- unset($item['iid']);
- Database::insert($TBL_QUESTION_OPTIONS, $item);
- }
- }
- $this->duplicate_category_question($new_question_id, $course_id);
- // Duplicates the picture of the hotspot
- $this->exportPicture($new_question_id, $course_info);
- return $new_question_id;
- }
- function get_categories_from_question() {
- return Testcategory::getCategoryForQuestion($this->id);
- }
- function duplicate_category_question($question_id, $course_id) {
- $question = Question::read($question_id, $course_id);
- $categories = $this->get_categories_from_question();
- if (!empty($categories)) {
- $question->saveCategories($categories);
- }
- }
- function get_question_type_name() {
- $key = self::$questionTypes[$this->type];
- return get_lang($key[1]);
- }
- static function get_question_type($type)
- {
- if ($type == ORAL_EXPRESSION && api_get_setting('enable_nanogong') != 'true') {
- return null;
- }
- return self::$questionTypes[$type];
- }
- static function get_question_type_list()
- {
- if (api_get_setting('enable_nanogong') != 'true') {
- self::$questionTypes[ORAL_EXPRESSION] = null;
- unset(self::$questionTypes[ORAL_EXPRESSION]);
- }
- return self::$questionTypes;
- }
- /**
- * Returns an instance of the class corresponding to the type
- * @param integer $type the type of the question
- * @return an instance of a Question subclass (or of Questionc class by default)
- */
- static function getInstance($type)
- {
- if (!is_null($type)) {
- list($file_name, $class_name) = self::get_question_type($type);
- if (!empty($file_name)) {
- include_once $file_name;
- if (class_exists($class_name)) {
- return new $class_name();
- } else {
- echo 'Can\'t instanciate class '.$class_name.' of type '.$type;
- }
- }
- }
- return null;
- }
- /**
- * Creates the form to create / edit a question
- * A subclass can redifine this function to add fields...
- * @param FormValidator $form the formvalidator instance (by reference)
- */
- function createForm(&$form, $fck_config = 0) {
- $url = api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?1=1';
- echo ' <style>
- .media { display:none;}
- </style>';
- if ($this->type != MEDIA_QUESTION) {
- echo '<script>
- function check() {
- $("#category_id option:selected").each(function() {
- var id = $(this).val();
- var name = $(this).text();
- if (id != "" ) {
- $.ajax({
- async: false,
- url: "'.$url.'&a=exercise_category_exists",
- data: "id="+id,
- success: function(return_value) {
- if (return_value == 0 ) {
- alert("'.get_lang('CategoryDoesNotExists').'");
- //Deleting select option tag
- $("#parent_id").find("option").remove();
- $(".holder li").each(function () {
- if ($(this).attr("rel") == id) {
- $(this).remove();
- }
- });
- }
- },
- });
- }
- });
- }
- $(function() {
- $("#category_id").fcbkcomplete({
- json_url: "'.$url.'&a=search_category_parent&type=all&",
- maxitems: 20,
- addontab: false,
- input_min_size: 1,
- cache: false,
- complete_text:"'.get_lang('StartToType').'",
- firstselected: false,
- onselect: check,
- filter_selected: true,
- newel: true
- });
- });
- </script>';
- }
- echo '<script>
- // hack to hide http://cksource.com/forums/viewtopic.php?f=6&t=8700
- function FCKeditor_OnComplete( editorInstance ) {
- if (document.getElementById ( \'HiddenFCK\' + editorInstance.Name )) {
- HideFCKEditorByInstanceName (editorInstance.Name);
- }
- }
- function HideFCKEditorByInstanceName ( editorInstanceName ) {
- if (document.getElementById ( \'HiddenFCK\' + editorInstanceName ).className == "HideFCKEditor" ) {
- document.getElementById ( \'HiddenFCK\' + editorInstanceName ).className = "media";
- }
- }
- function show_media(){
- var my_display = document.getElementById(\'HiddenFCKquestionDescription\').style.display;
- if(my_display== \'none\' || my_display == \'\') {
- document.getElementById(\'HiddenFCKquestionDescription\').style.display = \'block\';
- document.getElementById(\'media_icon\').innerHTML=\' <img style="vertical-align: middle;" src="../img/looknfeelna.png" alt="" /> '.get_lang(
- 'EnrichQuestion'
- ).'\';
- } else {
- document.getElementById(\'HiddenFCKquestionDescription\').style.display = \'none\';
- document.getElementById(\'media_icon\').innerHTML=\' <img style="vertical-align: middle;" src="../img/looknfeel.png" alt="" /> '.get_lang(
- 'EnrichQuestion'
- ).'\';
- }
- }
- // hub 13-12-2010
- function visiblerDevisibler(in_id) {
- if (document.getElementById(in_id)) {
- if (document.getElementById(in_id).style.display == "none") {
- document.getElementById(in_id).style.display = "block";
- if (document.getElementById(in_id+"Img")) {
- document.getElementById(in_id+"Img").src = "../img/div_hide.gif";
- }
- }
- else {
- document.getElementById(in_id).style.display = "none";
- if (document.getElementById(in_id+"Img")) {
- document.getElementById(in_id+"Img").src = "../img/div_show.gif";
- }
- }
- }
- }
- </script>';
- // question name
- $form->addElement('text', 'questionName', get_lang('Question'), array('class' => 'span6'));
- $form->addRule('questionName', get_lang('GiveQuestion'), 'required');
- // default content
- $isContent = isset($_REQUEST['isContent']) ? intval($_REQUEST['isContent']) : null;
- // Question type
- $answerType = isset($_REQUEST['answerType']) ? intval($_REQUEST['answerType']) : $this->selectType();
- $form->addElement('hidden', 'answerType', $answerType);
- // html editor
- $editor_config = array('ToolbarSet' => 'TestQuestionDescription', 'Width' => '100%', 'Height' => '150');
- if (is_array($fck_config)) {
- $editor_config = array_merge($editor_config, $fck_config);
- }
- if (!api_is_allowed_to_edit(null, true)) {
- $editor_config['UserStatus'] = 'student';
- }
- $form->addElement(
- 'advanced_settings',
- '<a href="javascript://" onclick=" return show_media()"><span id="media_icon"><img style="vertical-align: middle;" src="../img/looknfeel.png" alt="" /> '.get_lang(
- 'EnrichQuestion'
- ).'</span></a>
- '
- );
- $form->addElement('html', '<div class="HideFCKEditor" id="HiddenFCKquestionDescription" >');
- $form->add_html_editor('questionDescription', get_lang('QuestionDescription'), false, false, $editor_config);
- $form->addElement('html', '</div>');
- // hidden values
- $my_id = isset($_REQUEST['myid']) ? intval($_REQUEST['myid']) : null;
- $form->addElement('hidden', 'myid', $my_id);
- if ($this->type != MEDIA_QUESTION) {
- // Advanced parameters
- $form->addElement(
- 'advanced_settings',
- '<a href="javascript:void(0)" onclick="visiblerDevisibler(\'id_advancedOption\')"><img id="id_advancedOptionImg" style="vertical-align:middle;" src="../img/div_show.gif" alt="" /> '.get_lang(
- "AdvancedParameters"
- ).'</a>'
- );
- $form->addElement('html', '<div id="id_advancedOption" style="display:none;">');
- $select_level = Question::get_default_levels();
- $form->addElement('select', 'questionLevel', get_lang('Difficulty'), $select_level);
- if (!empty($this->category_list)) {
- $trigger = '';
- foreach ($this->category_list as $category_id) {
- if (!empty($category_id)) {
- $cat = new Testcategory($category_id);
- if ($cat->id) {
- $trigger .= '$("#category_id").trigger("addItem",[{"title": "'.$cat->parent_path.'", "value": "'.$cat->id.'"}]);';
- }
- }
- }
- echo '<script>$(function() { '.$trigger.' });</script>';
- }
- $form->addElement('select', 'questionCategory', get_lang('Category'), array(), array('id' => 'category_id'));
- // Categories
- //$tabCat = Testcategory::getCategoriesIdAndName();
- //$form->addElement('select', 'questionCategory', get_lang('Category'), $tabCat);
- //Medias
- $course_medias = Question::prepare_course_media_select(api_get_course_int_id());
- $form->addElement('select', 'parent_id', get_lang('AttachToMedia'), $course_medias);
- $form->addElement('html', '</div>');
- }
- if (!isset($_GET['fromExercise'])) {
- switch ($answerType) {
- case 1:
- $this->question = get_lang('DefaultUniqueQuestion');
- break;
- case 2:
- $this->question = get_lang('DefaultMultipleQuestion');
- break;
- case 3:
- $this->question = get_lang('DefaultFillBlankQuestion');
- break;
- case 4:
- $this->question = get_lang('DefaultMathingQuestion');
- break;
- case 5:
- $this->question = get_lang('DefaultOpenQuestion');
- break;
- case 9:
- $this->question = get_lang('DefaultMultipleQuestion');
- break;
- }
- }
- // default values
- $defaults = array();
- $defaults['questionName'] = $this->question;
- $defaults['questionDescription'] = $this->description;
- $defaults['questionLevel'] = $this->level;
- $defaults['questionCategory'] = $this->category_list;
- $defaults['parent_id'] = $this->parent_id;
- //Came from he question pool
- if (isset($_GET['fromExercise'])) {
- $form->setDefaults($defaults);
- }
- if (!empty($_REQUEST['myid'])) {
- $form->setDefaults($defaults);
- } else {
- if ($isContent == 1) {
- $form->setDefaults($defaults);
- }
- }
- }
- /**
- * function which process the creation of questions
- * @param FormValidator $form the formvalidator instance
- * @param Exercise $objExercise the Exercise instance
- */
- function processCreation($form, $objExercise = null)
- {
- $this->updateParentId($form->getSubmitValue('parent_id'));
- $this->updateTitle($form->getSubmitValue('questionName'));
- $this->updateDescription($form->getSubmitValue('questionDescription'));
- $this->updateLevel($form->getSubmitValue('questionLevel'));
- $this->updateCategory($form->getSubmitValue('questionCategory'));
- //Save normal question if NOT media
- if ($this->type != MEDIA_QUESTION) {
- $this->save($objExercise->id);
- // modify the exercise
- $objExercise->addToList($this->id);
- $objExercise->update_question_positions();
- }
- }
- /**
- * abstract function which creates the form to create / edit the answers of the question
- * @param the formvalidator instance
- */
- abstract function createAnswersForm($form);
- /**
- * abstract function which process the creation of answers
- * @param the formvalidator instance
- */
- abstract function processAnswersCreation($form);
- /**
- * Displays the menu of question types
- */
- static function display_type_menu($objExercise)
- {
- $feedback_type = $objExercise->feedback_type;
- $exerciseId = $objExercise->id;
- // 1. by default we show all the question types
- $question_type_custom_list = self::get_question_type_list();
- if (!isset($feedback_type)) {
- $feedback_type = 0;
- }
- if ($feedback_type == 1) {
- //2. but if it is a feedback DIRECT we only show the UNIQUE_ANSWER type that is currently available
- $question_type_custom_list = array(
- UNIQUE_ANSWER => self::$questionTypes[UNIQUE_ANSWER],
- HOT_SPOT_DELINEATION => self::$questionTypes[HOT_SPOT_DELINEATION]
- );
- } else {
- unset($question_type_custom_list[HOT_SPOT_DELINEATION]);
- }
- echo '<div class="actionsbig">';
- echo '<ul class="question_menu">';
- foreach ($question_type_custom_list as $i => $a_type) {
- // include the class of the type
- require_once $a_type[0];
- // get the picture of the type and the langvar which describes it
- $img = $explanation = '';
- eval('$img = '.$a_type[1].'::$typePicture;');
- eval('$explanation = get_lang('.$a_type[1].'::$explanationLangVar);');
- echo '<li>';
- echo '<div class="icon_image_content">';
- if ($objExercise->exercise_was_added_in_lp == true) {
- $img = pathinfo($img);
- $img = $img['filename'].'_na.'.$img['extension'];
- echo Display::return_icon($img, $explanation, array(), ICON_SIZE_BIG);
- } else {
- echo '<a href="admin.php?'.api_get_cidreq().'&newQuestion=yes&answerType='.$i.'&exerciseId='.$exerciseId.'">'.Display::return_icon($img, $explanation, array(), ICON_SIZE_BIG).'</a>';
- }
- echo '</div>';
- echo '</li>';
- }
- echo '<li>';
- echo '<div class="icon_image_content">';
- if ($objExercise->exercise_was_added_in_lp == true) {
- echo Display::return_icon('database_na.png', get_lang('GetExistingQuestion'));
- } else {
- if ($feedback_type == 1) {
- echo $url = '<a href="question_pool.php?'.api_get_cidreq().'&type=1&fromExercise='.$exerciseId.'">';
- } else {
- echo $url = '<a href="question_pool.php?'.api_get_cidreq().'&fromExercise='.$exerciseId.'">';
- }
- echo Display::return_icon('database.png', get_lang('GetExistingQuestion'));
- }
- echo '</a>';
- echo '</div></li>';
- echo '</ul>';
- echo '</div>';
- }
- static function saveQuestionOption($question_id, $name, $course_id, $position = 0)
- {
- $TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
- $params['question_id'] = intval($question_id);
- $params['name'] = $name;
- $params['position'] = $position;
- $params['c_id'] = $course_id;
- //$result = self::readQuestionOption($question_id, $course_id);
- $last_id = Database::insert($TBL_EXERCICE_QUESTION_OPTION, $params);
- return $last_id;
- }
- static function deleteAllQuestionOptions($question_id, $course_id)
- {
- $TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
- Database::delete(
- $TBL_EXERCICE_QUESTION_OPTION,
- array('c_id = ? AND question_id = ?' => array($course_id, $question_id))
- );
- }
- static function updateQuestionOption($id, $params, $course_id)
- {
- $TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
- $result = Database::update(
- $TBL_EXERCICE_QUESTION_OPTION,
- $params,
- array('c_id = ? AND id = ?' => array($course_id, $id))
- );
- return $result;
- }
- static function readQuestionOption($question_id, $course_id) {
- $TBL_EXERCICE_QUESTION_OPTION = Database::get_course_table(TABLE_QUIZ_QUESTION_OPTION);
- $result = Database::select('*', $TBL_EXERCICE_QUESTION_OPTION, array('where' => array('c_id = ? AND question_id = ?' => array($course_id, $question_id)), 'order' => 'iid ASC'));
- if (!empty($result)) {
- $new_result = array();
- foreach ($result as $item) {
- $new_result[$item['iid']] = $item;
- }
- return $new_result;
- }
- return array();
- }
- /**
- * Shows question title an description
- *
- * @param type $feedback_type
- * @param type $counter
- * @param type $score
- *
- * @return string
- */
- function return_header($feedback_type = null, $counter = null, $score = null, $show_media)
- {
- $counter_label = '';
- if (!empty($counter)) {
- $counter_label = intval($counter);
- }
- $score_label = get_lang('Wrong');
- $class = 'error';
- if ($score['pass'] == true) {
- $score_label = get_lang('Correct');
- $class = 'success';
- }
- if ($this->type == FREE_ANSWER || $this->type == ORAL_EXPRESSION) {
- if ($score['revised'] == true) {
- $score_label = get_lang('Revised');
- $class = '';
- } else {
- $score_label = get_lang('NotRevised');
- $class = 'error';
- }
- }
- $question_title = $this->question;
- // Display question category, if any
- if ($show_media) {
- $header .= $this->show_media_content();
- }
- $header .= Display::page_subheader2($counter_label.". ".$question_title);
- //$header .= Display::div('<div class="rib rib-'.$class.'"><h3>'.$score_label.'</h3></div> <h4>'.($score['result']).' </h4><h5 class="'.$class.'">'.$score['result'].' </h5>', array('class'=>'ribbon'));
- $header .= Display::div('<div class="rib rib-'.$class.'"><h3>'.$score_label.'</h3></div> <h4>'.$score['result'].' </h4>', array('class' => 'ribbon'));
- $header .= Display::div($this->description, array('id' => 'question_description'));
- return $header;
- }
- /**
- * Create a question from a set of parameters
- * @param int Quiz ID
- * @param string Question name
- * @param int Maximum result for the question
- * @param int Type of question (see constants at beginning of question.class.php)
- * @param int Question level/category
- */
- function create_question($quiz_id, $question_name, $max_score = 0, $type = 1, $level = 1)
- {
- $course_id = api_get_course_int_id();
- $tbl_quiz_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $tbl_quiz_rel_question = Database::get_course_table(TABLE_QUIZ_TEST_QUESTION);
- $quiz_id = intval($quiz_id);
- $max_score = (float)$max_score;
- $type = intval($type);
- $level = intval($level);
- // Get the max position
- $sql = "SELECT max(position) as max_position"
- ." FROM $tbl_quiz_question q INNER JOIN $tbl_quiz_rel_question r"
- ." ON q.iid = r.question_id"
- ." AND exercice_id = $quiz_id AND q.c_id = $course_id AND r.c_id = $course_id";
- $rs_max = Database::query($sql);
- $row_max = Database::fetch_object($rs_max);
- $max_position = $row_max->max_position + 1;
- // Insert the new question
- $sql = "INSERT INTO $tbl_quiz_question (c_id, question, ponderation, position, type, level)
- VALUES ($course_id, '".Database::escape_string($question_name)."', '$max_score', $max_position, $type, $level)";
- Database::query($sql);
- // Get the question ID
- $question_id = Database::get_last_insert_id();
- // Get the max question_order
- $sql = "SELECT max(question_order) as max_order "
- ."FROM $tbl_quiz_rel_question WHERE c_id = $course_id AND exercice_id = $quiz_id ";
- $rs_max_order = Database::query($sql);
- $row_max_order = Database::fetch_object($rs_max_order);
- $max_order = $row_max_order->max_order + 1;
- // Attach questions to quiz
- $sql = "INSERT INTO $tbl_quiz_rel_question (c_id, question_id, exercice_id, question_order)"
- ." VALUES($course_id, $question_id, $quiz_id, $max_order)";
- Database::query($sql);
- return $question_id;
- }
- /**
- * return the image filename of the question type
- *
- */
- public function get_type_icon_html()
- {
- $type = $this->selectType();
- // [0]=file to include [1]=type name
- $tabQuestionList = Question::get_question_type_list();
- require_once $tabQuestionList[$type][0];
- eval('$img = '.$tabQuestionList[$type][1].'::$typePicture;');
- eval('$explanation = get_lang('.$tabQuestionList[$type][1].'::$explanationLangVar);');
- return array($img, $explanation);
- }
- /**
- * Get course medias
- * @param int course id
- */
- static function get_course_medias(
- $course_id,
- $start = 0,
- $limit = 100,
- $sidx = "question",
- $sord = "ASC",
- $where_condition = array()
- ) {
- $table_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $default_where = array('c_id = ? AND parent_id = 0 AND type = ?' => array($course_id, MEDIA_QUESTION));
- if (!empty($where_condition)) {
- //$where_condition
- }
- $result = Database::select(
- '*',
- $table_question,
- array(
- 'limit' => " $start, $limit",
- 'where' => $default_where,
- 'order' => "$sidx $sord"
- )
- );
- return $result;
- }
- /**
- * Get count course medias
- * @param int course id
- */
- static function get_count_course_medias($course_id)
- {
- $table_question = Database::get_course_table(TABLE_QUIZ_QUESTION);
- $result = Database::select(
- 'count(*) as count',
- $table_question,
- array('where' => array('c_id = ? AND parent_id = 0 AND type = ?' => array($course_id, MEDIA_QUESTION))),
- 'first'
- );
- if ($result && isset($result['count'])) {
- return $result['count'];
- }
- return 0;
- }
- static function prepare_course_media_select($course_id)
- {
- $medias = self::get_course_medias($course_id);
- $media_list = array();
- $media_list[0] = get_lang('NoMedia');
- if (!empty($medias)) {
- foreach ($medias as $media) {
- $media_list[$media['iid']] = empty($media['question']) ? get_lang('Untitled') : $media['question'];
- }
- }
- return $media_list;
- }
- static function get_default_levels()
- {
- $select_level = array(
- 1 => 1,
- 2 => 2,
- 3 => 3,
- 4 => 4,
- 5 => 5
- );
- return $select_level;
- }
- function show_media_content()
- {
- $html = null;
- if ($this->parent_id != 0) {
- $parent_question = Question::read($this->parent_id);
- $html = $parent_question->show_media_content();
- } else {
- $html .= Display::page_subheader($this->selectTitle());
- $html .= $this->selectDescription();
- }
- return $html;
- }
- static function question_type_no_review() {
- return array(
- HOT_SPOT, HOT_SPOT_ORDER, HOT_SPOT_DELINEATION
- );
- }
- }
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