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750 lines
23 KiB
750 lines
23 KiB
<?php // $Id: $
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if ( count( get_included_files() ) == 1 ) die( '---' );
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/**
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* @copyright (c) 2001-2006 Universite catholique de Louvain (UCL)
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*
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* @license http://www.gnu.org/copyleft/gpl.html (GPL) GENERAL PUBLIC LICENSE
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*
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* @package dokeos.exercise
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*
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* @author claro team <cvs@claroline.net>
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* @author Guillaume Lederer <guillaume@claroline.net>
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*/
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/**
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* function to create a temporary directory (SAME AS IN MODULE ADMIN)
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*/
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function tempdir($dir, $prefix='tmp', $mode=0777)
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{
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if (substr($dir, -1) != '/') $dir .= '/';
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do
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{
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$path = $dir.$prefix.mt_rand(0, 9999999);
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} while (!mkdir($path, $mode));
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return $path;
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}
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/**
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* @return the path of the temporary directory where the exercise was uploaded and unzipped
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*/
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function get_and_unzip_uploaded_exercise()
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{
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$backlog_message = array();
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//Check if the file is valid (not to big and exists)
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if( !isset($_FILES['uploadedExercise'])
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|| !is_uploaded_file($_FILES['uploadedExercise']['tmp_name']))
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{
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$backlog_message[] = get_lang('Problem with file upload');
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}
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else
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{
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$backlog_message[] = get_lang('Temporary file is : ') . $_FILES['uploadedExercise']['tmp_name'];
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}
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//1- Unzip folder in a new repository in claroline/module
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include_once (realpath(dirname(__FILE__) . '/../../inc/lib/pclzip/') . '/pclzip.lib.php');
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//unzip files
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$exerciseRepositorySys = get_conf('rootSys') . get_conf('exerciseRepository','cache/');
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//create temp dir for upload
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claro_mkdir($exerciseRepositorySys);
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$uploadDirFullPath = tempdir($exerciseRepositorySys);
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$uploadDir = str_replace($exerciseRepositorySys,'',$uploadDirFullPath);
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$exercisePath = $exerciseRepositorySys.$uploadDir.'/';
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if ( preg_match('/.zip$/i', $_FILES['uploadedExercise']['name']) && treat_uploaded_file($_FILES['uploadedExercise'],$exerciseRepositorySys, $uploadDir, get_conf('maxFilledSpaceForExercise' , 10000000),'unzip',true))
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{
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$backlog_message[] = get_lang('Files dezipped sucessfully in ' ) . $exercisePath;
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if (!function_exists('gzopen'))
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{
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$backlog_message[] = get_lang('Error : no zlib extension found');
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claro_delete_file($exercisePath);
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return claro_failure::set_failure($backlog_message);
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}
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}
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else
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{
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$backlog_message[] = get_lang('Impossible to unzip file');
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claro_delete_file($exercisePath);
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return claro_failure::set_failure($backlog_message);
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}
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return $exercisePath;
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}
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/**
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* main function to import an exercise,
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*
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* @return an array as a backlog of what was really imported, and error or debug messages to display
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*/
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function import_exercise($file)
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{
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global $exercise_info;
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global $element_pile;
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global $non_HTML_tag_to_avoid;
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global $record_item_body;
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global $backlog_message;
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//get required table names
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$tbl_cdb_names = claro_sql_get_course_tbl();
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$tbl_quiz_exercise = $tbl_cdb_names['qwz_exercise'];
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$tbl_quiz_question = $tbl_cdb_names['qwz_question'];
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//set some default values for the new exercise
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$exercise_info = array();
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$exercise_info['name'] = preg_replace('/.zip$/i','' ,$file);
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$exercise_info['description'] = get_lang('undefined description');
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$exercise_info['question'] = array();
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$element_pile = array();
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$backlog_message = array();
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//create parser and array to retrieve info from manifest
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$element_pile = array(); //pile to known the depth in which we are
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$module_info = array(); //array to store the info we need
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//unzip the uploaded file in a tmp directory
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$exercisePath = get_and_unzip_uploaded_exercise();
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//find the different manifests for each question and parse them.
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$exerciseHandle = opendir($exercisePath);
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//find each question repository in the uploaded exercise folder
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array_push ($backlog_message, get_lang('XML question files found : '));
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$question_number = 0;
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//used to specify the question directory where files could be found in relation in any question
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global $questionTempDir;
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//1- parse the parent directory
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$questionHandle = opendir($exercisePath);
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while (false !== ($questionFile = readdir($questionHandle)))
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{
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if (preg_match('/.xml$/i' ,$questionFile))
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{
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array_push ($backlog_message, get_lang("XML question file found : ".$questionFile));
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parse_file($exercisePath, '', $questionFile);
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}//end if xml question file found
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}//end while question rep
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//2- parse every subdirectory to search xml question files
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while (false !== ($file = readdir($exerciseHandle)))
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{
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if (is_dir($exercisePath.$file) && $file != "." && $file != "..")
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{
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//find each manifest for each question repository found
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$questionHandle = opendir($exercisePath.$file);
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while (false !== ($questionFile = readdir($questionHandle)))
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{
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if (preg_match('/.xml$/i' ,$questionFile))
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{
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parse_file($exercisePath, $file, $questionFile);
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}//end if xml question file found
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}//end while question rep
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} //if is_dir
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}//end while loop to find each question data's
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//Display data found
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array_push ($backlog_message, 'Exercise name : <b>' . $exercise_info['name'] . '</b>');
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array_push ($backlog_message, 'Exercise description : ' . $exercise_info['description']);
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foreach ($exercise_info['question'] as $key => $question)
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{
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$question_number++;
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array_push ($backlog_message, '<b>'.$question_number.'-</b> Question found (' .$key. ') : <b>' . $question['title'] . '</b>');
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if (isset($question['statement'])) array_push ($backlog_message, '* Statement : ' . $question['statement']);
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array_push ($backlog_message, '* Type : ' . $question['type']);
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foreach ($exercise_info['question'][$key]['answer'] as $answer)
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{
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if ($question['type']=="MATCHING")
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{
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array_push ($backlog_message, '** Matchset : ');
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foreach ($answer as $matchSetElement)
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{
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array_push ($backlog_message, '*** Element ' . $matchSetElement);
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}
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}
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else
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{
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array_push ($backlog_message, '** Answer found : ' . $answer['value']);
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if (isset($answer['feedback'])) array_push ($backlog_message, '*** Answer feedback : ' . $answer['feedback']);
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}
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}
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if (isset($question['weighting']))
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{
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array_push ($backlog_message, '* WEIGHTING for Answers :');
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foreach ($question['weighting'] as $key => $weighting)
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{
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array_push ($backlog_message, '** Answer : '.$key.' ==> weighting : '.$weighting);
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}
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}
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if (isset($question['correct_answers']))
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{
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array_push ($backlog_message, '* CORRECT ANSWERS :');
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foreach ($question['correct_answers'] as $answerIdent)
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{
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array_push ($backlog_message, '* Answer : '.$answerIdent);
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}
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}
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if (isset($question['response_text']))
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{
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array_push ($backlog_message, '* Text to fill in : '.$question['response_text'] );
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}
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}
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//---------------------
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//add exercise in tool
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//---------------------
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//1.create exercise
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$exercise = new Exercise();
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$exercise->setTitle($exercise_info['name']);
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$exercise->setDescription($exercise_info['description']);
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if ($exercise->validate())
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{
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$exercise_id = $exercise->save();
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}
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else
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{
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array_push ($backlog_message, 'EXERCISE DATA INVALID !!!');
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}
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//For each question found...
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foreach($exercise_info['question'] as $key => $question_array)
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{
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//2.create question
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$question = new ImsQuestion();
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if (isset($question_array['title'])) $question->setTitle($question_array['title']);
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if (isset($question_array['statement'])) $question->setDescription($question_array['statement']);
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$question->setType($question_array['type']);
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if ($question->validate())
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{
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$question_id = $question->save();
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if ($question_id)
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{
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//3.create answers
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$question->setAnswer();
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$question->import($exercise_info['question'][$key], $exercise_info['question'][$key]['tempdir']);
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$exercise->addQuestion($question_id);
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$question->answer->save();
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$question->save();
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}
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else
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{
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array_push ($backlog_message, 'IMPOSSIBLE TO SAVE QUESTION !!!');
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}
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}
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else
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{
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array_push ($backlog_message, 'QUESTION DATA INVALID !!!');
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}
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}
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$link = "<center><a href=\"../exercise_submit.php?exId=".$exercise_id."\">".get_lang('See the exercise')."</a></center>";
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array_push ($backlog_message, $link);
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//delete the temp dir where the exercise was unzipped
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claro_delete_file($exercisePath);
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return $backlog_message;
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}
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function parse_file($exercisePath, $file, $questionFile)
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{
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global $exercise_info;
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global $element_pile;
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global $non_HTML_tag_to_avoid;
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global $record_item_body;
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$questionTempDir = $exercisePath.$file.'/';
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$questionFilePath = $questionTempDir.$questionFile;
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$backlog_message = array();
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array_push ($backlog_message, "* ".$questionFile);
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if (!($fp = @fopen($questionFilePath, 'r')))
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{
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array_push ($backlog_message, get_lang("Error opening question's XML file"));
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return $backlog_message;
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}
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else
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{
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$data = fread($fp, filesize( $questionFilePath));
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}
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//parse XML question file
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//used global variable start values declaration :
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$record_item_body = false;
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$non_HTML_tag_to_avoid = array(
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"SIMPLECHOICE",
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"CHOICEINTERACTION",
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"INLINECHOICEINTERACTION",
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"INLINECHOICE",
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"SIMPLEMATCHSET",
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"SIMPLEASSOCIABLECHOICE",
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"TEXTENTRYINTERACTION",
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"FEEDBACKINLINE",
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"MATCHINTERACTION",
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"ITEMBODY",
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"BR",
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"IMG"
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);
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//this array to detect tag not supported by claroline import in the xml file to warn the user.
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$non_supported_content_in_question = array(
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"GAPMATCHINTERACTION",
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"EXTENDEDTEXTINTERACTION",
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"HOTTEXTINTERACTION",
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"HOTSPOTINTERACTION",
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"SELECTPOINTINTERACTION",
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"GRAPHICORDERINTERACTION",
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"GRAPHICASSOCIATIONINTERACTION",
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"GRAPHICGAPMATCHINTERACTION",
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"POSITIONOBJECTINTERACTION",
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"SLIDERINTERACTION",
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"DRAWINGINTERACTION",
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"UPLOADINTERACTION",
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"RESPONSECONDITION",
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"RESPONSEIF"
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);
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$question_format_supported = true;
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$xml_parser = xml_parser_create();
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xml_set_element_handler($xml_parser, 'startElement', 'endElement');
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xml_set_character_data_handler($xml_parser, 'elementData');
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if (!xml_parse($xml_parser, $data, feof($fp)))
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{
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// if reading of the xml file in not successfull :
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// set errorFound, set error msg, break while statement
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array_push ($backlog_message, get_lang('Error reading XML file') );
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return $backlog_message;
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}
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//close file
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fclose($fp);
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if ($question_format_supported)
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{
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array_push ($backlog_message, get_lang('Question format found') );
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}
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else
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{
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array_push ($backlog_message, get_lang('ERROR in:<b>'.$questionFile.'</b> Question format unknown') );
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}
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}
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/**
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* Function used by the SAX xml parser when the parser meets a opening tag
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*
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* @param unknown_type $parser xml parser created with "xml_parser_create()"
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* @param unknown_type $name name of the element
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* @param unknown_type $attributes
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*/
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function startElement($parser, $name, $attributes)
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{
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global $element_pile;
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global $exercise_info;
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global $current_question_ident;
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global $current_answer_id;
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global $current_match_set;
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global $currentAssociableChoice;
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global $current_question_item_body;
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global $record_item_body;
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global $non_HTML_tag_to_avoid;
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global $current_inlinechoice_id;
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global $cardinality;
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global $questionTempDir;
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array_push($element_pile,$name);
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$current_element = end($element_pile);
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if (sizeof($element_pile)>=2) $parent_element = $element_pile[sizeof($element_pile)-2]; else $parent_element = "";
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if (sizeof($element_pile)>=3) $grant_parent_element = $element_pile[sizeof($element_pile)-3]; else $grant_parent_element ="";
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if ($record_item_body)
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{
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if ((!in_array($current_element,$non_HTML_tag_to_avoid)))
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{
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$current_question_item_body .= "<".$name;
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foreach ($attributes as $attribute_name => $attribute_value)
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{
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$current_question_item_body .= " ".$attribute_name."=\"".$attribute_value."\"";
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}
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$current_question_item_body .= ">";
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}
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else
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{
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//in case of FIB question, we replace the IMS-QTI tag b y the correct answer between "[" "]",
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//we first save with claroline tags ,then when the answer will be parsed, the claroline tags will be replaced
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if ($current_element=='INLINECHOICEINTERACTION')
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{
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$current_question_item_body .="**claroline_start**".$attributes['RESPONSEIDENTIFIER']."**claroline_end**";
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}
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if ($current_element=='TEXTENTRYINTERACTION')
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{
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$correct_answer_value = $exercise_info['question'][$current_question_ident]['correct_answers'][$current_answer_id];
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$current_question_item_body .= "[".$correct_answer_value."]";
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}
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if ($current_element=='BR')
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{
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$current_question_item_body .= "<BR/>";
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}
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}
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}
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switch ($current_element)
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{
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case 'ASSESSMENTITEM' :
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{
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//retrieve current question
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$current_question_ident = $attributes['IDENTIFIER'];
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$exercise_info['question'][$current_question_ident] = array();
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$exercise_info['question'][$current_question_ident]['answer'] = array();
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$exercise_info['question'][$current_question_ident]['correct_answers'] = array();
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$exercise_info['question'][$current_question_ident]['title'] = $attributes['TITLE'];
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$exercise_info['question'][$current_question_ident]['tempdir'] = $questionTempDir;
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}
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break;
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case 'SECTION' :
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{
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//retrieve exercise name
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$exercise_info['name'] = $attributes['TITLE'];
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}
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break;
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case 'RESPONSEDECLARATION' :
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{
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//retrieve question type
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if ( "multiple" == $attributes['CARDINALITY'])
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{
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$exercise_info['question'][$current_question_ident]['type'] = 'MCMA';
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$cardinality = 'multiple';
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}
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if ( "single" == $attributes['CARDINALITY'])
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{
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$exercise_info['question'][$current_question_ident]['type'] = 'MCUA';
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$cardinality = 'single';
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}
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//needed for FIB
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$current_answer_id = $attributes['IDENTIFIER'];
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}
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break;
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case 'INLINECHOICEINTERACTION' :
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{
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$exercise_info['question'][$current_question_ident]['type'] = 'FIB';
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$exercise_info['question'][$current_question_ident]['subtype'] = 'LISTBOX_FILL';
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$current_answer_id = $attributes['RESPONSEIDENTIFIER'];
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}
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break;
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case 'INLINECHOICE' :
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{
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$current_inlinechoice_id = $attributes['IDENTIFIER'];
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}
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break;
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case 'TEXTENTRYINTERACTION' :
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{
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$exercise_info['question'][$current_question_ident]['type'] = 'FIB';
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$exercise_info['question'][$current_question_ident]['subtype'] = 'TEXTFIELD_FILL';
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$exercise_info['question'][$current_question_ident]['response_text'] = $current_question_item_body;
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//replace claroline tags
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}
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break;
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case 'MATCHINTERACTION' :
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{
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$exercise_info['question'][$current_question_ident]['type'] = 'MATCHING';
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}
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break;
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case 'SIMPLEMATCHSET' :
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{
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if (!isset($current_match_set))
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{
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$current_match_set = 1;
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}
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else
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{
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$current_match_set++;
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}
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$exercise_info['question'][$current_question_ident]['answer'][$current_match_set] = array();
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}
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break;
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case 'SIMPLEASSOCIABLECHOICE' :
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{
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$currentAssociableChoice = $attributes['IDENTIFIER'];
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}
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break;
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//retrieve answers id for MCUA and MCMA questions
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|
|
|
case 'SIMPLECHOICE':
|
|
{
|
|
$current_answer_id = $attributes['IDENTIFIER'];
|
|
if (!isset($exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]))
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['answer'][$current_answer_id] = array();
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'MAPENTRY':
|
|
{
|
|
if ($parent_element == "MAPPING")
|
|
{
|
|
$answer_id = $attributes['MAPKEY'];
|
|
|
|
if (!isset($exercise_info['question'][$current_question_ident]['weighting']))
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['weighting'] = array();
|
|
}
|
|
$exercise_info['question'][$current_question_ident]['weighting'][$answer_id] = $attributes['MAPPEDVALUE'];
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'MAPPING':
|
|
{
|
|
if (isset($attributes['DEFAULTVALUE']))
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['default_weighting'] = $attributes['DEFAULTVALUE'];
|
|
}
|
|
}
|
|
|
|
case 'ITEMBODY':
|
|
{
|
|
$record_item_body = true;
|
|
$current_question_item_body = '';
|
|
}
|
|
break;
|
|
|
|
case 'IMG' :
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['attached_file_url'] = $attributes['SRC'];
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Function used by the SAX xml parser when the parser meets a closing tag
|
|
*
|
|
* @param $parser xml parser created with "xml_parser_create()"
|
|
* @param $name name of the element
|
|
*/
|
|
|
|
function endElement($parser,$name)
|
|
{
|
|
global $element_pile;
|
|
global $exercise_info;
|
|
global $current_question_ident;
|
|
global $record_item_body;
|
|
global $current_question_item_body;
|
|
global $non_HTML_tag_to_avoid;
|
|
global $cardinality;
|
|
|
|
$current_element = end($element_pile);
|
|
|
|
//treat the record of the full content of itembody tag :
|
|
|
|
if ($record_item_body && (!in_array($current_element,$non_HTML_tag_to_avoid)))
|
|
{
|
|
$current_question_item_body .= "</".$name.">";
|
|
}
|
|
|
|
switch ($name)
|
|
{
|
|
case 'ITEMBODY':
|
|
{
|
|
$record_item_body = false;
|
|
if ($exercise_info['question'][$current_question_ident]['type']=='FIB')
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['response_text'] = $current_question_item_body;
|
|
}
|
|
else
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['statement'] = $current_question_item_body;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
array_pop($element_pile);
|
|
|
|
}
|
|
|
|
function elementData($parser,$data)
|
|
{
|
|
|
|
global $element_pile;
|
|
global $exercise_info;
|
|
global $current_question_ident;
|
|
global $current_answer_id;
|
|
global $current_match_set;
|
|
global $currentAssociableChoice;
|
|
global $current_question_item_body;
|
|
global $record_item_body;
|
|
global $non_HTML_tag_to_avoid;
|
|
global $current_inlinechoice_id;
|
|
global $cardinality;
|
|
|
|
$current_element = end($element_pile);
|
|
if (sizeof($element_pile)>=2) $parent_element = $element_pile[sizeof($element_pile)-2]; else $parent_element = "";
|
|
if (sizeof($element_pile)>=3) $grant_parent_element = $element_pile[sizeof($element_pile)-3]; else $grant_parent_element = "";
|
|
|
|
//treat the record of the full content of itembody tag (needed for question statment and/or FIB text:
|
|
|
|
if ($record_item_body && (!in_array($current_element,$non_HTML_tag_to_avoid)))
|
|
{
|
|
$current_question_item_body .= $data;
|
|
}
|
|
|
|
switch ($current_element)
|
|
{
|
|
case 'SIMPLECHOICE':
|
|
{
|
|
if (!isset($exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['value']))
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['value'] = trim($data);
|
|
}
|
|
else
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['value'] .= ' '.trim($data);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'FEEDBACKINLINE' :
|
|
{
|
|
if (!isset($exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['feedback']))
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['feedback'] = trim($data);
|
|
}
|
|
else
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['answer'][$current_answer_id]['feedback'] .= ' '.trim($data);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'SIMPLEASSOCIABLECHOICE' :
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['answer'][$current_match_set][$currentAssociableChoice] = trim($data);
|
|
}
|
|
break;
|
|
|
|
case 'VALUE':
|
|
{
|
|
if ($parent_element=="CORRECTRESPONSE")
|
|
{
|
|
if ($cardinality=="single")
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['correct_answers'][$current_answer_id] = $data;
|
|
}
|
|
else
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['correct_answers'][] = $data;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'ITEMBODY' :
|
|
{
|
|
$current_question_item_body .= $data;
|
|
|
|
}
|
|
break;
|
|
|
|
case 'INLINECHOICE' :
|
|
{
|
|
|
|
// if this is the right answer, then we must replace the claroline tags in the FIB text bye the answer between "[" and "]" :
|
|
|
|
$answer_identifier = $exercise_info['question'][$current_question_ident]['correct_answers'][$current_answer_id];
|
|
|
|
if ($current_inlinechoice_id == $answer_identifier)
|
|
{
|
|
|
|
$current_question_item_body = str_replace("**claroline_start**".$current_answer_id."**claroline_end**", "[".$data."]", $current_question_item_body);
|
|
}
|
|
else // save wrong answers in an array
|
|
{
|
|
if(!isset($exercise_info['question'][$current_question_ident]['wrong_answers']))
|
|
{
|
|
$exercise_info['question'][$current_question_ident]['wrong_answers'] = array();
|
|
}
|
|
$exercise_info['question'][$current_question_ident]['wrong_answers'][] = $data;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
?>
|