public function saveExercises()
{
$successful = true;
$updateAmount = isset($_POST['exercise_id']) && !empty($_POST['exercise_id']) ? count($_POST['exercise_id']) : 0;
$i = 0;
// update exercises that were present in DB already
while ($i < $updateAmount) {
$id = $this->secureString($_POST['exercise_id'][$i]);
$question = $this->secureString($_POST['question'][$i]);
$answerEN = $this->secureString($_POST['answer_en'][$i]);
$answerDE = $this->secureString($_POST['answer_de'][$i]);
// do not update exercises with empty fields
if (empty($id) || empty($question) || empty($answerEN) || empty($answerDE)) {
$i++;
continue;
}
if (!Exercise::update($id, $question, $answerEN, $answerDE)) {
$successful = false;
}
$i++;
}
// add new exercises to DB
while ($i < count($_POST['question'])) {
$question = $this->secureString($_POST['question'][$i]);
$answerEN = $this->secureString($_POST['answer_en'][$i]);
$answerDE = $this->secureString($_POST['answer_de'][$i]);
// do not add exercises with empty fields
if (empty($question) || empty($answerEN) || empty($answerDE)) {
$i++;
continue;
}
if (!Exercise::createExercise($this->lesson->getId(), $question, $answerEN, $answerDE)) {
$successful = false;
}
$i++;
}
if ($successful) {
$this->getView()->addSuccessMessage('Exercises were successfully saved!');
} else {
$this->getView()->addErrorMessage('There was a problem saving one or more exercises..');
}
$this->defaultAction();
}
/**
* Handles a given Excel spreadsheets as in the template provided
*/
function lp_upload_quiz_action_handling()
{
global $debug;
$_course = api_get_course_info();
$courseId = $_course['real_id'];
if (!isset($_POST['submit_upload_quiz'])) {
return;
}
// Get the extension of the document.
$path_info = pathinfo($_FILES['user_upload_quiz']['name']);
// Check if the document is an Excel document
if ($path_info['extension'] != 'xls') {
return;
}
// Read the Excel document
$data = new Spreadsheet_Excel_Reader();
// Set output Encoding.
$data->setOutputEncoding(api_get_system_encoding());
// Reading the xls document.
$data->read($_FILES['user_upload_quiz']['tmp_name']);
$correctScore = isset($_POST['correct_score']) ? $_POST['correct_score'] : null;
$incorrectScore = isset($_POST['incorrect_score']) ? $_POST['incorrect_score'] : null;
$useCustomScore = isset($_POST['user_custom_score']) ? true : false;
$propagateNegative = 0;
if ($useCustomScore && !empty($incorrectScore)) {
if ($incorrectScore < 0) {
$propagateNegative = 1;
}
}
// Variables
$quiz_index = 0;
$question_title_index = array();
$question_name_index_init = array();
$question_name_index_end = array();
$score_index = array();
$feedback_true_index = array();
$feedback_false_index = array();
$number_questions = 0;
$question_description_index = array();
// Reading all the first column items sequentially to create breakpoints
for ($i = 1; $i <= $data->sheets[0]['numRows']; $i++) {
if ($data->sheets[0]['cells'][$i][1] == 'Quiz' && $i == 1) {
$quiz_index = $i;
// Quiz title position, only occurs once
} elseif ($data->sheets[0]['cells'][$i][1] == 'Question') {
$question_title_index[] = $i;
// Question title position line
$question_name_index_init[] = $i + 1;
// Questions name 1st position line
$number_questions++;
} elseif ($data->sheets[0]['cells'][$i][1] == 'Score') {
$question_name_index_end[] = $i - 1;
// Question name position
$score_index[] = $i;
// Question score position
} elseif ($data->sheets[0]['cells'][$i][1] == 'FeedbackTrue') {
$feedback_true_index[] = $i;
// FeedbackTrue position (line)
} elseif ($data->sheets[0]['cells'][$i][1] == 'FeedbackFalse') {
$feedback_false_index[] = $i;
// FeedbackFalse position (line)
} elseif ($data->sheets[0]['cells'][$i][1] == 'EnrichQuestion') {
$question_description_index[] = $i;
}
}
// Variables
$quiz = array();
$question = array();
$new_answer = array();
$score_list = array();
$feedback_true_list = array();
$feedback_false_list = array();
$question_description = array();
// Getting questions.
$k = $z = $q = $l = $m = 0;
for ($i = 1; $i <= $data->sheets[0]['numRows']; $i++) {
if (is_array($data->sheets[0]['cells'][$i])) {
$column_data = $data->sheets[0]['cells'][$i];
// Fill all column with data to have a full array
for ($x = 1; $x <= $data->sheets[0]['numCols']; $x++) {
if (empty($column_data[$x])) {
$data->sheets[0]['cells'][$i][$x] = '';
}
}
// Array filled with data
$column_data = $data->sheets[0]['cells'][$i];
} else {
$column_data = '';
}
// Fill quiz data
if ($quiz_index == $i) {
// The title always in the first position
$quiz = $column_data;
} elseif (in_array($i, $question_title_index)) {
//a complete line where 1st column is 'Question'
$question[$k] = $column_data;
$k++;
} elseif (in_array($i, $score_index)) {
//a complete line where 1st column is 'Score'
$score_list[$z] = $column_data;
$z++;
} elseif (in_array($i, $feedback_true_index)) {
//a complete line where 1st column is 'FeedbackTrue'
$feedback_true_list[$q] = $column_data;
$q++;
} elseif (in_array($i, $feedback_false_index)) {
//a complete line where 1st column is 'FeedbackFalse' for wrong answers
$feedback_false_list[$l] = $column_data;
$l++;
} elseif (in_array($i, $question_description_index)) {
//a complete line where 1st column is 'EnrichQuestion'
$question_description[$m] = $column_data;
$m++;
}
}
// Get answers
for ($i = 0; $i < count($question_name_index_init); $i++) {
for ($j = $question_name_index_init[$i]; $j <= $question_name_index_end[$i]; $j++) {
if (is_array($data->sheets[0]['cells'][$j])) {
$column_data = $data->sheets[0]['cells'][$j];
// Fill all column with data
for ($x = 1; $x <= $data->sheets[0]['numCols']; $x++) {
if (empty($column_data[$x])) {
$data->sheets[0]['cells'][$j][$x] = '';
}
}
$column_data = $data->sheets[0]['cells'][$j];
// Array filled of data
if (is_array($data->sheets[0]['cells'][$j]) && count($data->sheets[0]['cells'][$j]) > 0) {
$new_answer[$i][$j] = $data->sheets[0]['cells'][$j];
}
}
}
}
// Quiz title.
$quiz_title = $quiz[2];
if ($quiz_title != '') {
// Variables
$type = 2;
$random = $active = $results = $max_attempt = $expired_time = 0;
// Make sure feedback is enabled (3 to disable), otherwise the fields
// added to the XLS are not shown, which is confusing
$feedback = 0;
// Quiz object
$exercise = new Exercise();
//
$quiz_id = $exercise->createExercise($quiz_title, $expired_time, $type, $random, $active, $results, $max_attempt, $feedback, $propagateNegative);
if ($quiz_id) {
// insert into the item_property table
api_item_property_update($_course, TOOL_QUIZ, $quiz_id, 'QuizAdded', api_get_user_id());
// Import questions.
for ($i = 0; $i < $number_questions; $i++) {
// Question name
$question_title = $question[$i][2];
$question_description_text = "<p></p>";
if (isset($question_description[$i][2])) {
// Question description.
$question_description_text = "<p>" . $question_description[$i][2] . "</p>";
}
// Unique answers are the only question types available for now
// through xls-format import
$question_id = null;
$detectQuestionType = detectQuestionType($new_answer[$i], $score_list);
/** @var Question $answer */
switch ($detectQuestionType) {
case FREE_ANSWER:
$answer = new FreeAnswer();
break;
case GLOBAL_MULTIPLE_ANSWER:
$answer = new GlobalMultipleAnswer();
break;
case MULTIPLE_ANSWER:
$answer = new MultipleAnswer();
break;
case UNIQUE_ANSWER:
default:
$answer = new UniqueAnswer();
break;
}
if ($question_title != '') {
$question_id = $answer->create_question($quiz_id, $question_title, $question_description_text, 0, $answer->type);
}
$total = 0;
if (is_array($new_answer[$i]) && !empty($question_id)) {
$id = 1;
$answers_data = $new_answer[$i];
$globalScore = null;
$objAnswer = new Answer($question_id, $courseId);
$globalScore = $score_list[$i][3];
// Calculate the number of correct answers to divide the
// score between them when importing from CSV
$numberRightAnswers = 0;
foreach ($answers_data as $answer_data) {
if (strtolower($answer_data[3]) == 'x') {
$numberRightAnswers++;
}
}
foreach ($answers_data as $answer_data) {
$answerValue = $answer_data[2];
$correct = 0;
$score = 0;
if (strtolower($answer_data[3]) == 'x') {
$correct = 1;
$score = $score_list[$i][3];
$comment = $feedback_true_list[$i][2];
} else {
$comment = $feedback_false_list[$i][2];
$floatVal = (double) $answer_data[3];
if (is_numeric($floatVal)) {
$score = $answer_data[3];
}
}
if ($useCustomScore) {
if ($correct) {
$score = $correctScore;
} else {
$score = $incorrectScore;
}
}
// Fixing scores:
switch ($detectQuestionType) {
case GLOBAL_MULTIPLE_ANSWER:
$score /= $numberRightAnswers;
break;
case UNIQUE_ANSWER:
break;
case MULTIPLE_ANSWER:
if (!$correct) {
//$total = $total - $score;
}
break;
}
$objAnswer->createAnswer($answerValue, $correct, $comment, $score, $id);
$total += $score;
$id++;
}
$objAnswer->save();
$questionObj = Question::read($question_id, $courseId);
switch ($detectQuestionType) {
case GLOBAL_MULTIPLE_ANSWER:
$questionObj->updateWeighting($globalScore);
break;
case UNIQUE_ANSWER:
case MULTIPLE_ANSWER:
default:
$questionObj->updateWeighting($total);
break;
}
$questionObj->save();
} else {
if ($detectQuestionType === FREE_ANSWER) {
$questionObj = Question::read($question_id, $courseId);
$globalScore = $score_list[$i][3];
$questionObj->updateWeighting($globalScore);
$questionObj->save();
}
}
}
}
if (isset($_SESSION['lpobject'])) {
if ($debug > 0) {
error_log('New LP - SESSION[lpobject] is defined', 0);
}
$oLP = unserialize($_SESSION['lpobject']);
if (is_object($oLP)) {
if ($debug > 0) {
error_log('New LP - oLP is object', 0);
}
if (empty($oLP->cc) or $oLP->cc != api_get_course_id()) {
if ($debug > 0) {
error_log('New LP - Course has changed, discard lp object', 0);
}
$oLP = null;
Session::erase('oLP');
Session::erase('lpobject');
} else {
$_SESSION['oLP'] = $oLP;
}
}
}
if (isset($_SESSION['oLP']) && isset($_GET['lp_id'])) {
$previous = $_SESSION['oLP']->select_previous_item_id();
$parent = 0;
// Add a Quiz as Lp Item
$_SESSION['oLP']->add_item($parent, $previous, TOOL_QUIZ, $quiz_id, $quiz_title, '');
// Redirect to home page for add more content
header('location: ../newscorm/lp_controller.php?' . api_get_cidreq() . '&action=add_item&type=step&lp_id=' . Security::remove_XSS($_GET['lp_id']));
exit;
} else {
// header('location: exercise.php?' . api_get_cidreq());
echo '<script>window.location.href = "' . api_get_path(WEB_CODE_PATH) . 'exercice/admin.php?' . api_get_cidReq() . '&exerciseId=' . $quiz_id . '&session_id=' . api_get_session_id() . '"</script>';
}
}
}
$exercise[$key2]['exerciseType'] = rtrim($exercise[$key2]['exerciseType'], "b");
} else {
$bonus = "0";
}
// create exercise
$exerciseId = isset($exercise[$key2]['id']) ? $exercise[$key2]['id'] : null;
if ($exerciseId === null) {
$exerciseId = $newExerciseId;
$newExerciseId--;
}
$exercise[$key2]['id'] = $exerciseId;
$submittable = '1';
if (isset($exercise[$key2]['submittable']) && $exercise[$key2]['submittable'] == '0') {
$submittable = '0';
}
$subexerciseObj = Exercise::createExercise($exerciseId, $cid, $sheetId, $exercise[$key2]['maxPoints'], $exercise[$key2]['exerciseType'], $key1 + 1, $bonus, $key2 + 1, $submittable);
// set FileTypes (only as an array with strings in it)
$subexerciseObj->setFileTypes($exercise[$key2]['mime-type']);
// add attachement if given
if (isset($_FILES['exercises']['error'][$key1]['subexercises'][$key2]['attachment']) && $_FILES['exercises']['error'][$key1]['subexercises'][$key2]['attachment'] != 4) {
$filePath = $_FILES['exercises']['tmp_name'][$key1]['subexercises'][$key2]['attachment'];
$displayName = $_FILES['exercises']['name'][$key1]['subexercises'][$key2]['attachment'];
$attachments = array();
$attachementFile = File::createFile(NULL, $displayName, NULL, $timestamp, NULL, NULL, NULL);
$attachementFile->setBody(Reference::createReference($filePath));
$subexerciseObj->setAttachments(array($attachementFile));
} elseif (isset($_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['fileId'])) {
$attachementFile = File::createFile(NULL, null, NULL, null, NULL, NULL, NULL);
$attachementFile->setFileId(isset($_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['fileId']) ? $_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['fileId'] : null);
$attachementFile->setAddress(isset($_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['address']) ? $_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['address'] : null);
$attachementFile->setDisplayName(isset($_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['displayName']) ? $_POST['exercises'][$key1]['subexercises'][$key2]['attachment']['displayName'] : null);
