$user_answer = $user_array;
$_SESSION['exerciseResultCoordinates'][$questionid] = $user_answer;
//needed for exercise_result.php
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
if (empty($_GET['hotspot'])) {
//no user response
$overlap = -2;
} else {
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
}
//$overlap = round(polygons_overlap($poly_answer,$poly_user)); //this is an area in pixels
if ($dbg_local > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
/**
* This function was originally found in the exercise_show.php
* @param int $exeId
* @param int $questionId
* @param int $choice the user selected
* @param string $from function is called from 'exercise_show' or 'exercise_result'
* @param array $exerciseResultCoordinates the hotspot coordinates $hotspot[$question_id] = coordinates
* @param bool $saved_results save results in the DB or just show the reponse
* @param bool $from_database gets information from DB or from the current selection
* @param bool $show_result show results or not
* @param int $propagate_neg
* @param array $hotspot_delineation_result
*
* @todo reduce parameters of this function
* @return string html code
*/
public function manage_answer($exeId, $questionId, $choice, $from = 'exercise_show', $exerciseResultCoordinates = array(), $saved_results = true, $from_database = false, $show_result = true, $propagate_neg = 0, $hotspot_delineation_result = array())
{
global $debug;
//needed in order to use in the exercise_attempt() for the time
global $learnpath_id, $learnpath_item_id;
require_once api_get_path(LIBRARY_PATH) . 'geometry.lib.php';
$feedback_type = $this->selectFeedbackType();
$results_disabled = $this->selectResultsDisabled();
if ($debug) {
error_log("<------ manage_answer ------> ");
error_log('exe_id: ' . $exeId);
error_log('$from: ' . $from);
error_log('$saved_results: ' . intval($saved_results));
error_log('$from_database: ' . intval($from_database));
error_log('$show_result: ' . $show_result);
error_log('$propagate_neg: ' . $propagate_neg);
error_log('$exerciseResultCoordinates: ' . print_r($exerciseResultCoordinates, 1));
error_log('$hotspot_delineation_result: ' . print_r($hotspot_delineation_result, 1));
error_log('$learnpath_id: ' . $learnpath_id);
error_log('$learnpath_item_id: ' . $learnpath_item_id);
error_log('$choice: ' . print_r($choice, 1));
}
$extra_data = array();
$final_overlap = 0;
$final_missing = 0;
$final_excess = 0;
$overlap_color = 0;
$missing_color = 0;
$excess_color = 0;
$threadhold1 = 0;
$threadhold2 = 0;
$threadhold3 = 0;
$arrques = null;
$arrans = null;
$questionId = intval($questionId);
$exeId = intval($exeId);
$TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$table_ans = Database::get_course_table(TABLE_QUIZ_ANSWER);
// Creates a temporary Question object
$course_id = $this->course_id;
$objQuestionTmp = Question::read($questionId, $course_id);
if ($objQuestionTmp === false) {
return false;
}
$questionName = $objQuestionTmp->selectTitle();
$questionWeighting = $objQuestionTmp->selectWeighting();
$answerType = $objQuestionTmp->selectType();
$quesId = $objQuestionTmp->selectId();
$extra = $objQuestionTmp->extra;
$next = 1;
//not for now
// Extra information of the question
if (!empty($extra)) {
$extra = explode(':', $extra);
if ($debug) {
error_log(print_r($extra, 1));
}
// Fixes problems with negatives values using intval
$true_score = floatval(trim($extra[0]));
$false_score = floatval(trim($extra[1]));
$doubt_score = floatval(trim($extra[2]));
}
$totalWeighting = 0;
$totalScore = 0;
// Destruction of the Question object
unset($objQuestionTmp);
// Construction of the Answer object
$objAnswerTmp = new Answer($questionId);
$nbrAnswers = $objAnswerTmp->selectNbrAnswers();
if ($debug) {
error_log('Count of answers: ' . $nbrAnswers);
error_log('$answerType: ' . $answerType);
}
if ($answerType == FREE_ANSWER || $answerType == ORAL_EXPRESSION || $answerType == CALCULATED_ANSWER) {
$nbrAnswers = 1;
}
$nano = null;
if ($answerType == ORAL_EXPRESSION) {
$exe_info = Event::get_exercise_results_by_attempt($exeId);
$exe_info = isset($exe_info[$exeId]) ? $exe_info[$exeId] : null;
$params = array();
$params['course_id'] = $course_id;
$params['session_id'] = api_get_session_id();
$params['user_id'] = isset($exe_info['exe_user_id']) ? $exe_info['exe_user_id'] : api_get_user_id();
$params['exercise_id'] = isset($exe_info['exe_exo_id']) ? $exe_info['exe_exo_id'] : $this->id;
$params['question_id'] = $questionId;
$params['exe_id'] = isset($exe_info['exe_id']) ? $exe_info['exe_id'] : $exeId;
$nano = new Nanogong($params);
//probably this attempt came in an exercise all question by page
if ($feedback_type == 0) {
$nano->replace_with_real_exe($exeId);
}
}
$user_answer = '';
// Get answer list for matching
$sql = "SELECT id_auto, id, answer\n FROM {$table_ans}\n WHERE c_id = {$course_id} AND question_id = {$questionId}";
$res_answer = Database::query($sql);
$answerMatching = array();
while ($real_answer = Database::fetch_array($res_answer)) {
$answerMatching[$real_answer['id_auto']] = $real_answer['answer'];
}
$real_answers = array();
$quiz_question_options = Question::readQuestionOption($questionId, $course_id);
$organs_at_risk_hit = 0;
$questionScore = 0;
if ($debug) {
error_log('Start answer loop ');
}
$answer_correct_array = array();
for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
$answer = $objAnswerTmp->selectAnswer($answerId);
$answerComment = $objAnswerTmp->selectComment($answerId);
$answerCorrect = $objAnswerTmp->isCorrect($answerId);
$answerWeighting = (double) $objAnswerTmp->selectWeighting($answerId);
$answerAutoId = $objAnswerTmp->selectAutoId($answerId);
$answer_correct_array[$answerId] = (bool) $answerCorrect;
if ($debug) {
error_log("answer auto id: {$answerAutoId} ");
error_log("answer correct: {$answerCorrect} ");
}
// Delineation
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates(1);
$answer_delineation_destination = $objAnswerTmp->selectDestination(1);
switch ($answerType) {
// for unique answer
case UNIQUE_ANSWER:
case UNIQUE_ANSWER_IMAGE:
case UNIQUE_ANSWER_NO_OPTION:
if ($from_database) {
$sql = "SELECT answer FROM {$TBL_TRACK_ATTEMPT}\n WHERE\n exe_id = '" . $exeId . "' AND\n question_id= '" . $questionId . "'";
$result = Database::query($sql);
$choice = Database::result($result, 0, "answer");
$studentChoice = $choice == $answerAutoId ? 1 : 0;
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
} else {
$studentChoice = $choice == $answerAutoId ? 1 : 0;
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
break;
// for multiple answers
// for multiple answers
case MULTIPLE_ANSWER_TRUE_FALSE:
if ($from_database) {
$choice = array();
$sql = "SELECT answer FROM {$TBL_TRACK_ATTEMPT}\n WHERE\n exe_id = {$exeId} AND\n question_id = " . $questionId;
$result = Database::query($sql);
while ($row = Database::fetch_array($result)) {
$ind = $row['answer'];
$values = explode(':', $ind);
$my_answer_id = isset($values[0]) ? $values[0] : '';
$option = isset($values[1]) ? $values[1] : '';
$choice[$my_answer_id] = $option;
}
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if (!empty($studentChoice)) {
if ($studentChoice == $answerCorrect) {
$questionScore += $true_score;
} else {
if ($quiz_question_options[$studentChoice]['name'] == "Don't know" || $quiz_question_options[$studentChoice]['name'] == "DoubtScore") {
$questionScore += $doubt_score;
} else {
$questionScore += $false_score;
}
}
} else {
// If no result then the user just hit don't know
$studentChoice = 3;
$questionScore += $doubt_score;
}
$totalScore = $questionScore;
break;
case MULTIPLE_ANSWER:
//2
if ($from_database) {
$choice = array();
$sql = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . "\n WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resultans = Database::query($sql);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
$real_answers[$answerId] = (bool) $studentChoice;
if ($studentChoice) {
$questionScore += $answerWeighting;
}
} else {
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
$real_answers[$answerId] = (bool) $studentChoice;
if (isset($studentChoice)) {
$questionScore += $answerWeighting;
}
}
$totalScore += $answerWeighting;
if ($debug) {
error_log("studentChoice: {$studentChoice}");
}
break;
case GLOBAL_MULTIPLE_ANSWER:
if ($from_database) {
$choice = array();
$sql = "SELECT answer FROM {$TBL_TRACK_ATTEMPT}\n WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resultans = Database::query($sql);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
$real_answers[$answerId] = (bool) $studentChoice;
if ($studentChoice) {
$questionScore += $answerWeighting;
}
} else {
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if (isset($studentChoice)) {
$questionScore += $answerWeighting;
}
$real_answers[$answerId] = (bool) $studentChoice;
}
$totalScore += $answerWeighting;
if ($debug) {
error_log("studentChoice: {$studentChoice}");
}
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
if ($from_database) {
$sql = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . "\n WHERE exe_id = {$exeId} AND question_id= " . $questionId;
$resultans = Database::query($sql);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$result = explode(':', $ind);
if (isset($result[0])) {
$my_answer_id = isset($result[0]) ? $result[0] : '';
$option = isset($result[1]) ? $result[1] : '';
$choice[$my_answer_id] = $option;
}
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : '';
if ($answerCorrect == $studentChoice) {
//$answerCorrect = 1;
$real_answers[$answerId] = true;
} else {
//$answerCorrect = 0;
$real_answers[$answerId] = false;
}
} else {
$studentChoice = $choice[$answerAutoId];
if ($answerCorrect == $studentChoice) {
//$answerCorrect = 1;
$real_answers[$answerId] = true;
} else {
//$answerCorrect = 0;
$real_answers[$answerId] = false;
}
}
break;
case MULTIPLE_ANSWER_COMBINATION:
if ($from_database) {
$sql = "SELECT answer FROM {$TBL_TRACK_ATTEMPT}\n WHERE exe_id = {$exeId} AND question_id= {$questionId}";
$resultans = Database::query($sql);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if ($answerCorrect == 1) {
if ($studentChoice) {
$real_answers[$answerId] = true;
} else {
$real_answers[$answerId] = false;
}
} else {
if ($studentChoice) {
$real_answers[$answerId] = false;
} else {
$real_answers[$answerId] = true;
}
}
} else {
$studentChoice = isset($choice[$answerAutoId]) ? $choice[$answerAutoId] : null;
if ($answerCorrect == 1) {
if ($studentChoice) {
$real_answers[$answerId] = true;
} else {
$real_answers[$answerId] = false;
}
} else {
if ($studentChoice) {
$real_answers[$answerId] = false;
} else {
$real_answers[$answerId] = true;
}
}
}
break;
case FILL_IN_BLANKS:
$str = '';
if ($from_database) {
$sql = "SELECT answer\n FROM {$TBL_TRACK_ATTEMPT}\n WHERE\n exe_id = {$exeId} AND\n question_id= " . intval($questionId);
$result = Database::query($sql);
$str = Database::result($result, 0, 'answer');
}
if ($saved_results == false && strpos($str, 'font color') !== false) {
// the question is encoded like this
// [A] B [C] D [E] F::10,10,10@1
// number 1 before the "@" means that is a switchable fill in blank question
// [A] B [C] D [E] F::10,10,10@ or [A] B [C] D [E] F::10,10,10
// means that is a normal fill blank question
// first we explode the "::"
$pre_array = explode('::', $answer);
// is switchable fill blank or not
$last = count($pre_array) - 1;
$is_set_switchable = explode('@', $pre_array[$last]);
$switchable_answer_set = false;
if (isset($is_set_switchable[1]) && $is_set_switchable[1] == 1) {
$switchable_answer_set = true;
}
$answer = '';
for ($k = 0; $k < $last; $k++) {
$answer .= $pre_array[$k];
}
// splits weightings that are joined with a comma
$answerWeighting = explode(',', $is_set_switchable[0]);
// we save the answer because it will be modified
$temp = $answer;
$answer = '';
$j = 0;
//initialise answer tags
$user_tags = $correct_tags = $real_text = array();
// the loop will stop at the end of the text
while (1) {
// quits the loop if there are no more blanks (detect '[')
if (($pos = api_strpos($temp, '[')) === false) {
// adds the end of the text
$answer = $temp;
$real_text[] = $answer;
break;
//no more "blanks", quit the loop
}
// adds the piece of text that is before the blank
//and ends with '[' into a general storage array
$real_text[] = api_substr($temp, 0, $pos + 1);
$answer .= api_substr($temp, 0, $pos + 1);
//take the string remaining (after the last "[" we found)
$temp = api_substr($temp, $pos + 1);
// quit the loop if there are no more blanks, and update $pos to the position of next ']'
if (($pos = api_strpos($temp, ']')) === false) {
// adds the end of the text
$answer .= $temp;
break;
}
if ($from_database) {
$queryfill = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . "\n WHERE\n exe_id = '" . $exeId . "' AND\n question_id= " . intval($questionId) . "";
$resfill = Database::query($queryfill);
$str = Database::result($resfill, 0, 'answer');
api_preg_match_all('#\\[([^[]*)\\]#', $str, $arr);
$str = str_replace('\\r\\n', '', $str);
$choice = $arr[1];
if (isset($choice[$j])) {
$tmp = api_strrpos($choice[$j], ' / ');
$choice[$j] = api_substr($choice[$j], 0, $tmp);
$choice[$j] = trim($choice[$j]);
// Needed to let characters ' and " to work as part of an answer
$choice[$j] = stripslashes($choice[$j]);
} else {
$choice[$j] = null;
}
} else {
// This value is the user input, not escaped while correct answer is escaped by fckeditor
$choice[$j] = api_htmlentities(trim($choice[$j]));
}
$user_tags[] = $choice[$j];
//put the contents of the [] answer tag into correct_tags[]
$correct_tags[] = api_substr($temp, 0, $pos);
$j++;
$temp = api_substr($temp, $pos + 1);
}
$answer = '';
$real_correct_tags = $correct_tags;
$chosen_list = array();
for ($i = 0; $i < count($real_correct_tags); $i++) {
if ($i == 0) {
$answer .= $real_text[0];
}
if (!$switchable_answer_set) {
// Needed to parse ' and " characters
$user_tags[$i] = stripslashes($user_tags[$i]);
if ($correct_tags[$i] == $user_tags[$i]) {
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $correct_tags[$i];
} elseif (!empty($user_tags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= '';
// remove that causes issue
}
} else {
// switchable fill in the blanks
if (in_array($user_tags[$i], $correct_tags)) {
$chosen_list[] = $user_tags[$i];
$correct_tags = array_diff($correct_tags, $chosen_list);
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $user_tags[$i];
} elseif (!empty($user_tags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= '';
// remove that causes issue
}
}
// adds the correct word, followed by ] to close the blank
$answer .= ' / <font color="green"><b>' . $real_correct_tags[$i] . '</b></font>]';
if (isset($real_text[$i + 1])) {
$answer .= $real_text[$i + 1];
}
}
} else {
// insert the student result in the track_e_attempt table, field answer
// $answer is the answer like in the c_quiz_answer table for the question
// student data are choice[]
$listCorrectAnswers = FillBlanks::getAnswerInfo($answer);
$switchableAnswerSet = $listCorrectAnswers["switchable"];
$answerWeighting = $listCorrectAnswers["tabweighting"];
// user choices is an array $choice
// get existing user data in n the BDD
if ($from_database) {
$sql = "SELECT answer\n FROM {$TBL_TRACK_ATTEMPT}\n WHERE\n exe_id = {$exeId} AND\n question_id= " . intval($questionId);
$result = Database::query($sql);
$str = Database::result($result, 0, 'answer');
$listStudentResults = FillBlanks::getAnswerInfo($str, true);
$choice = $listStudentResults['studentanswer'];
}
// loop other all blanks words
if (!$switchableAnswerSet) {
// not switchable answer, must be in the same place than teacher order
for ($i = 0; $i < count($listCorrectAnswers['tabwords']); $i++) {
$studentAnswer = isset($choice[$i]) ? trim($choice[$i]) : '';
// This value is the user input, not escaped while correct answer is escaped by fckeditor
// Works with cyrillic alphabet and when using ">" chars see #7718 #7610 #7618
if (!$from_database) {
$studentAnswer = htmlentities(api_utf8_encode($studentAnswer));
}
$correctAnswer = $listCorrectAnswers['tabwords'][$i];
$isAnswerCorrect = 0;
if (FillBlanks::isGoodStudentAnswer($studentAnswer, $correctAnswer)) {
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
$isAnswerCorrect = 1;
}
$listCorrectAnswers['studentanswer'][$i] = $studentAnswer;
$listCorrectAnswers['studentscore'][$i] = $isAnswerCorrect;
}
} else {
// switchable answer
$listStudentAnswerTemp = $choice;
$listTeacherAnswerTemp = $listCorrectAnswers['tabwords'];
// for every teacher answer, check if there is a student answer
for ($i = 0; $i < count($listStudentAnswerTemp); $i++) {
$studentAnswer = trim($listStudentAnswerTemp[$i]);
$found = false;
for ($j = 0; $j < count($listTeacherAnswerTemp); $j++) {
$correctAnswer = $listTeacherAnswerTemp[$j];
if (!$found) {
if (FillBlanks::isGoodStudentAnswer($studentAnswer, $correctAnswer)) {
$questionScore += $answerWeighting[$i];
$totalScore += $answerWeighting[$i];
$listTeacherAnswerTemp[$j] = "";
$found = true;
}
}
}
$listCorrectAnswers['studentanswer'][$i] = $studentAnswer;
if (!$found) {
$listCorrectAnswers['studentscore'][$i] = 0;
} else {
$listCorrectAnswers['studentscore'][$i] = 1;
}
}
}
$answer = FillBlanks::getAnswerInStudentAttempt($listCorrectAnswers);
}
break;
// for calculated answer
// for calculated answer
case CALCULATED_ANSWER:
$calculatedAnswer = Session::read('calculatedAnswerId');
$answer = $objAnswerTmp->selectAnswer($calculatedAnswer[$questionId]);
$preArray = explode('@@', $answer);
$last = count($preArray) - 1;
$answer = '';
for ($k = 0; $k < $last; $k++) {
$answer .= $preArray[$k];
}
$answerWeighting = array($answerWeighting);
// we save the answer because it will be modified
$temp = $answer;
$answer = '';
$j = 0;
//initialise answer tags
$userTags = $correctTags = $realText = array();
// the loop will stop at the end of the text
while (1) {
// quits the loop if there are no more blanks (detect '[')
if (($pos = api_strpos($temp, '[')) === false) {
// adds the end of the text
$answer = $temp;
$realText[] = $answer;
break;
//no more "blanks", quit the loop
}
// adds the piece of text that is before the blank
//and ends with '[' into a general storage array
$realText[] = api_substr($temp, 0, $pos + 1);
$answer .= api_substr($temp, 0, $pos + 1);
//take the string remaining (after the last "[" we found)
$temp = api_substr($temp, $pos + 1);
// quit the loop if there are no more blanks, and update $pos to the position of next ']'
if (($pos = api_strpos($temp, ']')) === false) {
// adds the end of the text
$answer .= $temp;
break;
}
if ($from_database) {
$queryfill = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . "\n WHERE\n exe_id = '" . $exeId . "' AND\n question_id= " . intval($questionId) . "";
$resfill = Database::query($queryfill);
$str = Database::result($resfill, 0, 'answer');
api_preg_match_all('#\\[([^[]*)\\]#', $str, $arr);
$str = str_replace('\\r\\n', '', $str);
$choice = $arr[1];
if (isset($choice[$j])) {
$tmp = api_strrpos($choice[$j], ' / ');
$choice[$j] = api_substr($choice[$j], 0, $tmp);
$choice[$j] = trim($choice[$j]);
// Needed to let characters ' and " to work as part of an answer
$choice[$j] = stripslashes($choice[$j]);
} else {
$choice[$j] = null;
}
} else {
// This value is the user input, not escaped while correct answer is escaped by fckeditor
$choice[$j] = api_htmlentities(trim($choice[$j]));
}
$userTags[] = $choice[$j];
//put the contents of the [] answer tag into correct_tags[]
$correctTags[] = api_substr($temp, 0, $pos);
$j++;
$temp = api_substr($temp, $pos + 1);
}
$answer = '';
$realCorrectTags = $correctTags;
for ($i = 0; $i < count($realCorrectTags); $i++) {
if ($i == 0) {
$answer .= $realText[0];
}
// Needed to parse ' and " characters
$userTags[$i] = stripslashes($userTags[$i]);
if ($correctTags[$i] == $userTags[$i]) {
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $correctTags[$i];
} elseif (!empty($userTags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $userTags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= '';
// remove that causes issue
}
// adds the correct word, followed by ] to close the blank
$answer .= ' / <font color="green"><b>' . $realCorrectTags[$i] . '</b></font>]';
if (isset($realText[$i + 1])) {
$answer .= $realText[$i + 1];
}
}
break;
// for free answer
// for free answer
case FREE_ANSWER:
if ($from_database) {
$query = "SELECT answer, marks FROM " . $TBL_TRACK_ATTEMPT . "\n WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resq = Database::query($query);
$data = Database::fetch_array($resq);
$choice = $data['answer'];
$choice = str_replace('\\r\\n', '', $choice);
$choice = stripslashes($choice);
$questionScore = $data['marks'];
if ($questionScore == -1) {
$totalScore += 0;
} else {
$totalScore += $questionScore;
}
if ($questionScore == '') {
$questionScore = 0;
}
$arrques = $questionName;
$arrans = $choice;
} else {
$studentChoice = $choice;
if ($studentChoice) {
//Fixing negative puntation see #2193
$questionScore = 0;
$totalScore += 0;
}
}
break;
case ORAL_EXPRESSION:
if ($from_database) {
$query = "SELECT answer, marks FROM " . $TBL_TRACK_ATTEMPT . "\n WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resq = Database::query($query);
$choice = Database::result($resq, 0, 'answer');
$choice = str_replace('\\r\\n', '', $choice);
$choice = stripslashes($choice);
$questionScore = Database::result($resq, 0, "marks");
if ($questionScore == -1) {
$totalScore += 0;
} else {
$totalScore += $questionScore;
}
$arrques = $questionName;
$arrans = $choice;
} else {
$studentChoice = $choice;
if ($studentChoice) {
//Fixing negative puntation see #2193
$questionScore = 0;
$totalScore += 0;
}
}
break;
case DRAGGABLE:
//no break
//no break
case MATCHING_DRAGGABLE:
//no break
//no break
case MATCHING:
if ($from_database) {
$sql = 'SELECT id, answer, id_auto
FROM ' . $table_ans . '
WHERE
c_id = ' . $course_id . ' AND
question_id = "' . $questionId . '" AND
correct = 0';
$res_answer = Database::query($sql);
// Getting the real answer
$real_list = array();
while ($real_answer = Database::fetch_array($res_answer)) {
$real_list[$real_answer['id_auto']] = $real_answer['answer'];
}
$sql = 'SELECT id, answer, correct, id_auto, ponderation
FROM ' . $table_ans . '
WHERE
c_id = ' . $course_id . ' AND
question_id="' . $questionId . '" AND
correct <> 0
ORDER BY id_auto';
$res_answers = Database::query($sql);
$questionScore = 0;
while ($a_answers = Database::fetch_array($res_answers)) {
$i_answer_id = $a_answers['id'];
//3
$s_answer_label = $a_answers['answer'];
// your daddy - your mother
$i_answer_correct_answer = $a_answers['correct'];
//1 - 2
$i_answer_id_auto = $a_answers['id_auto'];
// 3 - 4
$sql = "SELECT answer FROM {$TBL_TRACK_ATTEMPT}\n WHERE\n exe_id = '{$exeId}' AND\n question_id = '{$questionId}' AND\n position = '{$i_answer_id_auto}'";
$res_user_answer = Database::query($sql);
if (Database::num_rows($res_user_answer) > 0) {
// rich - good looking
$s_user_answer = Database::result($res_user_answer, 0, 0);
} else {
$s_user_answer = 0;
}
$i_answerWeighting = $a_answers['ponderation'];
$user_answer = '';
if (!empty($s_user_answer)) {
if ($answerType == DRAGGABLE) {
if ($s_user_answer == $i_answer_correct_answer) {
$questionScore += $i_answerWeighting;
$totalScore += $i_answerWeighting;
$user_answer = Display::label(get_lang('Correct'), 'success');
} else {
$user_answer = Display::label(get_lang('Incorrect'), 'danger');
}
} else {
if ($s_user_answer == $i_answer_correct_answer) {
$questionScore += $i_answerWeighting;
$totalScore += $i_answerWeighting;
if (isset($real_list[$i_answer_id])) {
$user_answer = Display::span($real_list[$i_answer_id]);
}
} else {
$user_answer = Display::span($real_list[$s_user_answer], ['style' => 'color: #FF0000; text-decoration: line-through;']);
}
}
} elseif ($answerType == DRAGGABLE) {
$user_answer = Display::label(get_lang('Incorrect'), 'danger');
}
if ($show_result) {
echo '<tr>';
echo '<td>' . $s_answer_label . '</td>';
echo '<td>' . $user_answer;
if (in_array($answerType, [MATCHING, MATCHING_DRAGGABLE])) {
if (isset($real_list[$i_answer_correct_answer])) {
echo Display::span($real_list[$i_answer_correct_answer], ['style' => 'color: #008000; font-weight: bold;']);
}
}
echo '</td>';
echo '</tr>';
}
}
break 2;
// break the switch and the "for" condition
} else {
if ($answerCorrect) {
if (isset($choice[$answerAutoId]) && $answerCorrect == $choice[$answerAutoId]) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$user_answer = Display::span($answerMatching[$choice[$answerAutoId]]);
} else {
if (isset($answerMatching[$choice[$answerAutoId]])) {
$user_answer = Display::span($answerMatching[$choice[$answerAutoId]], ['style' => 'color: #FF0000; text-decoration: line-through;']);
}
}
$matching[$answerAutoId] = $choice[$answerAutoId];
}
break;
}
case HOT_SPOT:
if ($from_database) {
$TBL_TRACK_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$sql = "SELECT hotspot_correct\n FROM {$TBL_TRACK_HOTSPOT}\n WHERE\n hotspot_exe_id = '" . $exeId . "' AND\n hotspot_question_id= '" . $questionId . "' AND\n hotspot_answer_id = " . intval($answerAutoId) . "";
$result = Database::query($sql);
$studentChoice = Database::result($result, 0, "hotspot_correct");
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
} else {
if (!isset($choice[$answerAutoId])) {
$choice[$answerAutoId] = 0;
} else {
$studentChoice = $choice[$answerAutoId];
$choiceIsValid = false;
if (!empty($studentChoice)) {
$hotspotType = $objAnswerTmp->selectHotspotType($answerId);
$hotspotCoordinates = $objAnswerTmp->selectHotspotCoordinates($answerId);
$choicePoint = Geometry::decodePoint($studentChoice);
switch ($hotspotType) {
case 'square':
$hotspotProperties = Geometry::decodeSquare($hotspotCoordinates);
$choiceIsValid = Geometry::pointIsInSquare($hotspotProperties, $choicePoint);
break;
case 'circle':
$hotspotProperties = Geometry::decodeEllipse($hotspotCoordinates);
$choiceIsValid = Geometry::pointIsInEllipse($hotspotProperties, $choicePoint);
break;
case 'poly':
$hotspotProperties = Geometry::decodePolygon($hotspotCoordinates);
$choiceIsValid = Geometry::pointIsInPolygon($hotspotProperties, $choicePoint);
break;
}
}
$choice[$answerAutoId] = 0;
if ($choiceIsValid) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$choice[$answerAutoId] = 1;
}
}
}
break;
// @todo never added to chamilo
//for hotspot with fixed order
// @todo never added to chamilo
//for hotspot with fixed order
case HOT_SPOT_ORDER:
$studentChoice = $choice['order'][$answerId];
if ($studentChoice == $answerId) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$studentChoice = true;
} else {
$studentChoice = false;
}
break;
// for hotspot with delineation
// for hotspot with delineation
case HOT_SPOT_DELINEATION:
if ($from_database) {
// getting the user answer
$TBL_TRACK_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$query = "SELECT hotspot_correct, hotspot_coordinate\n FROM {$TBL_TRACK_HOTSPOT}\n WHERE\n hotspot_exe_id = '" . $exeId . "' AND\n hotspot_question_id= '" . $questionId . "' AND\n hotspot_answer_id='1'";
//by default we take 1 because it's a delineation
$resq = Database::query($query);
$row = Database::fetch_array($resq, 'ASSOC');
$choice = $row['hotspot_correct'];
$user_answer = $row['hotspot_coordinate'];
// THIS is very important otherwise the poly_compile will throw an error!!
// round-up the coordinates
$coords = explode('/', $user_answer);
$user_array = '';
foreach ($coords as $coord) {
list($x, $y) = explode(';', $coord);
$user_array .= round($x) . ';' . round($y) . '/';
}
$user_array = substr($user_array, 0, -1);
} else {
if (!empty($studentChoice)) {
$newquestionList[] = $questionId;
}
if ($answerId === 1) {
$studentChoice = $choice[$answerId];
$questionScore += $answerWeighting;
if ($hotspot_delineation_result[1] == 1) {
$totalScore += $answerWeighting;
//adding the total
}
}
}
$_SESSION['hotspot_coord'][1] = $delineation_cord;
$_SESSION['hotspot_dest'][1] = $answer_delineation_destination;
break;
}
// end switch Answertype
if ($show_result) {
if ($debug) {
error_log('show result ' . $show_result);
}
if ($from == 'exercise_result') {
if ($debug) {
error_log('Showing questions $from ' . $from);
}
//display answers (if not matching type, or if the answer is correct)
if (!in_array($answerType, [MATCHING, DRAGGABLE, MATCHING_DRAGGABLE]) || $answerCorrect) {
if (in_array($answerType, array(UNIQUE_ANSWER, UNIQUE_ANSWER_IMAGE, UNIQUE_ANSWER_NO_OPTION, MULTIPLE_ANSWER, MULTIPLE_ANSWER_COMBINATION, GLOBAL_MULTIPLE_ANSWER))) {
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_unique_or_multiple_answer($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, 0, 0, 0, $results_disabled);
//}
} elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
//if ($origin!='learnpath') {
ExerciseShowFunctions::display_multiple_answer_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, 0, $questionId, 0, $results_disabled);
//}
} elseif ($answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
// if ($origin!='learnpath') {
ExerciseShowFunctions::display_multiple_answer_combination_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, 0, 0, 0, $results_disabled);
//}
} elseif ($answerType == FILL_IN_BLANKS) {
//if ($origin!='learnpath') {
ExerciseShowFunctions::display_fill_in_blanks_answer($feedback_type, $answer, 0, 0, $results_disabled);
// }
} elseif ($answerType == CALCULATED_ANSWER) {
//if ($origin!='learnpath') {
ExerciseShowFunctions::display_calculated_answer($feedback_type, $answer, 0, 0);
// }
} elseif ($answerType == FREE_ANSWER) {
//if($origin != 'learnpath') {
ExerciseShowFunctions::display_free_answer($feedback_type, $choice, $exeId, $questionId, $questionScore);
//}
} elseif ($answerType == ORAL_EXPRESSION) {
// to store the details of open questions in an array to be used in mail
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_oral_expression_answer($feedback_type, $choice, 0, 0, $nano);
//}
} elseif ($answerType == HOT_SPOT) {
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_hotspot_answer($feedback_type, $answerId, $answer, $studentChoice, $answerComment, $results_disabled);
// }
} elseif ($answerType == HOT_SPOT_ORDER) {
//if ($origin != 'learnpath') {
ExerciseShowFunctions::display_hotspot_order_answer($feedback_type, $answerId, $answer, $studentChoice, $answerComment);
//}
} elseif ($answerType == HOT_SPOT_DELINEATION) {
$user_answer = $_SESSION['exerciseResultCoordinates'][$questionId];
//round-up the coordinates
$coords = explode('/', $user_answer);
$user_array = '';
foreach ($coords as $coord) {
list($x, $y) = explode(';', $coord);
$user_array .= round($x) . ';' . round($y) . '/';
}
$user_array = substr($user_array, 0, -1);
if ($next) {
$user_answer = $user_array;
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
//calculating the area
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
//$overlap = round(polygons_overlap($poly_answer,$poly_user));
// //this is an area in pixels
if ($debug > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
} else {
// the final overlap is the percentage of the initial polygon
// that is overlapped by the user's polygon
$final_overlap = round((double) $overlap / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final overlap is ' . $final_overlap, 0);
}
// the final missing area is the percentage of the initial polygon
// that is not overlapped by the user's polygon
$final_missing = 100 - $final_overlap;
if ($debug > 1) {
error_log(__LINE__ . ' - Final missing is ' . $final_missing, 0);
}
// the final excess area is the percentage of the initial polygon's size
// that is covered by the user's polygon outside of the initial polygon
$final_excess = round(((double) $poly_user_area - (double) $overlap) / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final excess is ' . $final_excess, 0);
}
}
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
$threadhold_total = $destination_items[0];
$threadhold_items = explode(';', $threadhold_total);
$threadhold1 = $threadhold_items[0];
// overlap
$threadhold2 = $threadhold_items[1];
// excess
$threadhold3 = $threadhold_items[2];
//missing
// if is delineation
if ($answerId === 1) {
//setting colors
if ($final_overlap >= $threadhold1) {
$overlap_color = true;
//echo 'a';
}
//echo $excess.'-'.$threadhold2;
if ($final_excess <= $threadhold2) {
$excess_color = true;
//echo 'b';
}
//echo '--------'.$missing.'-'.$threadhold3;
if ($final_missing <= $threadhold3) {
$missing_color = true;
//echo 'c';
}
// if pass
if ($final_overlap >= $threadhold1 && $final_missing <= $threadhold3 && $final_excess <= $threadhold2) {
$next = 1;
//go to the oars
$result_comment = get_lang('Acceptable');
$final_answer = 1;
// do not update with update_exercise_attempt
} else {
$next = 0;
$result_comment = get_lang('Unacceptable');
$comment = $answerDestination = $objAnswerTmp->selectComment(1);
$answerDestination = $objAnswerTmp->selectDestination(1);
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
}
} elseif ($answerId > 1) {
if ($objAnswerTmp->selectHotspotType($answerId) == 'noerror') {
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is of type noerror', 0);
}
//type no error shouldn't be treated
$next = 1;
continue;
}
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is >1 so we\'re probably in OAR', 0);
}
//check the intersection between the oar and the user
//echo 'user'; print_r($x_user_list); print_r($y_user_list);
//echo 'official';print_r($x_list);print_r($y_list);
//$result = get_intersection_data($x_list,$y_list,$x_user_list,$y_user_list);
$inter = $result['success'];
//$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates($answerId);
$poly_answer = convert_coordinates($delineation_cord, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$overlap = poly_touch($poly_user_compiled, $poly_answer_compiled, $max_coord);
if ($overlap == false) {
//all good, no overlap
$next = 1;
continue;
} else {
if ($debug > 0) {
error_log(__LINE__ . ' - Overlap is ' . $overlap . ': OAR hit', 0);
}
$organs_at_risk_hit++;
//show the feedback
$next = 0;
$comment = $answerDestination = $objAnswerTmp->selectComment($answerId);
$answerDestination = $objAnswerTmp->selectDestination($answerId);
$destination_items = explode('@@', $answerDestination);
$try_hotspot = $destination_items[1];
$lp_hotspot = $destination_items[2];
$select_question_hotspot = $destination_items[3];
$url_hotspot = $destination_items[4];
}
}
} else {
// the first delineation feedback
if ($debug > 0) {
error_log(__LINE__ . ' first', 0);
}
}
} elseif (in_array($answerType, [MATCHING, MATCHING_DRAGGABLE])) {
echo '<tr>';
echo Display::tag('td', $answerMatching[$answerId]);
echo Display::tag('td', "{$user_answer} / " . Display::tag('strong', $answerMatching[$answerCorrect], ['style' => 'color: #008000; font-weight: bold;']));
echo '</tr>';
}
}
} else {
if ($debug) {
error_log('Showing questions $from ' . $from);
}
switch ($answerType) {
case UNIQUE_ANSWER:
case UNIQUE_ANSWER_IMAGE:
case UNIQUE_ANSWER_NO_OPTION:
case MULTIPLE_ANSWER:
case GLOBAL_MULTIPLE_ANSWER:
case MULTIPLE_ANSWER_COMBINATION:
if ($answerId == 1) {
ExerciseShowFunctions::display_unique_or_multiple_answer($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, $answerId, $results_disabled);
} else {
ExerciseShowFunctions::display_unique_or_multiple_answer($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, "", $results_disabled);
}
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
if ($answerId == 1) {
ExerciseShowFunctions::display_multiple_answer_combination_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, $answerId, $results_disabled);
} else {
ExerciseShowFunctions::display_multiple_answer_combination_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, "", $results_disabled);
}
break;
case MULTIPLE_ANSWER_TRUE_FALSE:
if ($answerId == 1) {
ExerciseShowFunctions::display_multiple_answer_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, $answerId, $results_disabled);
} else {
ExerciseShowFunctions::display_multiple_answer_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, "", $results_disabled);
}
break;
case FILL_IN_BLANKS:
ExerciseShowFunctions::display_fill_in_blanks_answer($feedback_type, $answer, $exeId, $questionId, $results_disabled, $str);
break;
case CALCULATED_ANSWER:
ExerciseShowFunctions::display_calculated_answer($feedback_type, $answer, $exeId, $questionId);
break;
case FREE_ANSWER:
echo ExerciseShowFunctions::display_free_answer($feedback_type, $choice, $exeId, $questionId, $questionScore);
break;
case ORAL_EXPRESSION:
echo '<tr>
<td valign="top">' . ExerciseShowFunctions::display_oral_expression_answer($feedback_type, $choice, $exeId, $questionId, $nano) . '</td>
</tr>
</table>';
break;
case HOT_SPOT:
ExerciseShowFunctions::display_hotspot_answer($feedback_type, $answerId, $answer, $studentChoice, $answerComment, $results_disabled);
break;
case HOT_SPOT_DELINEATION:
$user_answer = $user_array;
if ($next) {
//$tbl_track_e_hotspot = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
// Save into db
/* $sql = "INSERT INTO $tbl_track_e_hotspot (
* hotspot_user_id,
* hotspot_course_code,
* hotspot_exe_id,
* hotspot_question_id,
* hotspot_answer_id,
* hotspot_correct,
* hotspot_coordinate
* )
VALUES (
* '".Database::escape_string($_user['user_id'])."',
* '".Database::escape_string($_course['id'])."',
* '".Database::escape_string($exeId)."', '".Database::escape_string($questionId)."',
* '".Database::escape_string($answerId)."',
* '".Database::escape_string($studentChoice)."',
* '".Database::escape_string($user_array)."')";
$result = Database::query($sql,__FILE__,__LINE__);
*/
$user_answer = $user_array;
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
//calculating the area
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
//$overlap = round(polygons_overlap($poly_answer,$poly_user)); //this is an area in pixels
if ($debug > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
} else {
// the final overlap is the percentage of the initial polygon that is overlapped by the user's polygon
$final_overlap = round((double) $overlap / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final overlap is ' . $final_overlap, 0);
}
// the final missing area is the percentage of the initial polygon that is not overlapped by the user's polygon
$final_missing = 100 - $final_overlap;
if ($debug > 1) {
error_log(__LINE__ . ' - Final missing is ' . $final_missing, 0);
}
// the final excess area is the percentage of the initial polygon's size that is covered by the user's polygon outside of the initial polygon
$final_excess = round(((double) $poly_user_area - (double) $overlap) / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final excess is ' . $final_excess, 0);
}
}
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
$threadhold_total = $destination_items[0];
$threadhold_items = explode(';', $threadhold_total);
$threadhold1 = $threadhold_items[0];
// overlap
$threadhold2 = $threadhold_items[1];
// excess
$threadhold3 = $threadhold_items[2];
//missing
// if is delineation
if ($answerId === 1) {
//setting colors
if ($final_overlap >= $threadhold1) {
$overlap_color = true;
//echo 'a';
}
//echo $excess.'-'.$threadhold2;
if ($final_excess <= $threadhold2) {
$excess_color = true;
//echo 'b';
}
//echo '--------'.$missing.'-'.$threadhold3;
if ($final_missing <= $threadhold3) {
$missing_color = true;
//echo 'c';
}
// if pass
if ($final_overlap >= $threadhold1 && $final_missing <= $threadhold3 && $final_excess <= $threadhold2) {
$next = 1;
//go to the oars
$result_comment = get_lang('Acceptable');
$final_answer = 1;
// do not update with update_exercise_attempt
} else {
$next = 0;
$result_comment = get_lang('Unacceptable');
$comment = $answerDestination = $objAnswerTmp->selectComment(1);
$answerDestination = $objAnswerTmp->selectDestination(1);
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
}
} elseif ($answerId > 1) {
if ($objAnswerTmp->selectHotspotType($answerId) == 'noerror') {
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is of type noerror', 0);
}
//type no error shouldn't be treated
$next = 1;
continue;
}
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is >1 so we\'re probably in OAR', 0);
}
//check the intersection between the oar and the user
//echo 'user'; print_r($x_user_list); print_r($y_user_list);
//echo 'official';print_r($x_list);print_r($y_list);
//$result = get_intersection_data($x_list,$y_list,$x_user_list,$y_user_list);
$inter = $result['success'];
//$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates($answerId);
$poly_answer = convert_coordinates($delineation_cord, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$overlap = poly_touch($poly_user_compiled, $poly_answer_compiled, $max_coord);
if ($overlap == false) {
//all good, no overlap
$next = 1;
continue;
} else {
if ($debug > 0) {
error_log(__LINE__ . ' - Overlap is ' . $overlap . ': OAR hit', 0);
}
$organs_at_risk_hit++;
//show the feedback
$next = 0;
$comment = $answerDestination = $objAnswerTmp->selectComment($answerId);
$answerDestination = $objAnswerTmp->selectDestination($answerId);
$destination_items = explode('@@', $answerDestination);
$try_hotspot = $destination_items[1];
$lp_hotspot = $destination_items[2];
$select_question_hotspot = $destination_items[3];
$url_hotspot = $destination_items[4];
}
}
} else {
// the first delineation feedback
if ($debug > 0) {
error_log(__LINE__ . ' first', 0);
}
}
break;
case HOT_SPOT_ORDER:
ExerciseShowFunctions::display_hotspot_order_answer($feedback_type, $answerId, $answer, $studentChoice, $answerComment);
break;
case DRAGGABLE:
//no break
//no break
case MATCHING_DRAGGABLE:
//no break
//no break
case MATCHING:
echo '<tr>';
echo Display::tag('td', $answerMatching[$answerId]);
echo Display::tag('td', "{$user_answer} / " . Display::tag('strong', $answerMatching[$answerCorrect], ['style' => 'color: #008000; font-weight: bold;']));
echo '</tr>';
break;
}
}
}
if ($debug) {
error_log(' ------ ');
}
}
// end for that loops over all answers of the current question
if ($debug) {
error_log('-- end answer loop --');
}
$final_answer = true;
foreach ($real_answers as $my_answer) {
if (!$my_answer) {
$final_answer = false;
}
}
//we add the total score after dealing with the answers
if ($answerType == MULTIPLE_ANSWER_COMBINATION || $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
if ($final_answer) {
//getting only the first score where we save the weight of all the question
$answerWeighting = $objAnswerTmp->selectWeighting(1);
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
//Fixes multiple answer question in order to be exact
//if ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
/* if ($answerType == GLOBAL_MULTIPLE_ANSWER) {
$diff = @array_diff($answer_correct_array, $real_answers);
// All good answers or nothing works like exact
$counter = 1;
$correct_answer = true;
foreach ($real_answers as $my_answer) {
if ($debug)
error_log(" my_answer: $my_answer answer_correct_array[counter]: ".$answer_correct_array[$counter]);
if ($my_answer != $answer_correct_array[$counter]) {
$correct_answer = false;
break;
}
$counter++;
}
if ($debug) error_log(" answer_correct_array: ".print_r($answer_correct_array, 1)."");
if ($debug) error_log(" real_answers: ".print_r($real_answers, 1)."");
if ($debug) error_log(" correct_answer: ".$correct_answer);
if ($correct_answer == false) {
$questionScore = 0;
}
// This makes the result non exact
if (!empty($diff)) {
$questionScore = 0;
}
}*/
$extra_data = array('final_overlap' => $final_overlap, 'final_missing' => $final_missing, 'final_excess' => $final_excess, 'overlap_color' => $overlap_color, 'missing_color' => $missing_color, 'excess_color' => $excess_color, 'threadhold1' => $threadhold1, 'threadhold2' => $threadhold2, 'threadhold3' => $threadhold3);
if ($from == 'exercise_result') {
// if answer is hotspot. To the difference of exercise_show.php,
// we use the results from the session (from_db=0)
// TODO Change this, because it is wrong to show the user
// some results that haven't been stored in the database yet
if ($answerType == HOT_SPOT || $answerType == HOT_SPOT_ORDER || $answerType == HOT_SPOT_DELINEATION) {
if ($debug) {
error_log('$from AND this is a hotspot kind of question ');
}
$my_exe_id = 0;
$from_database = 0;
if ($answerType == HOT_SPOT_DELINEATION) {
if (0) {
if ($overlap_color) {
$overlap_color = 'green';
} else {
$overlap_color = 'red';
}
if ($missing_color) {
$missing_color = 'green';
} else {
$missing_color = 'red';
}
if ($excess_color) {
$excess_color = 'green';
} else {
$excess_color = 'red';
}
if (!is_numeric($final_overlap)) {
$final_overlap = 0;
}
if (!is_numeric($final_missing)) {
$final_missing = 0;
}
if (!is_numeric($final_excess)) {
$final_excess = 0;
}
if ($final_overlap > 100) {
$final_overlap = 100;
}
$table_resume = '<table class="data_table">
<tr class="row_odd" >
<td></td>
<td ><b>' . get_lang('Requirements') . '</b></td>
<td><b>' . get_lang('YourAnswer') . '</b></td>
</tr>
<tr class="row_even">
<td><b>' . get_lang('Overlap') . '</b></td>
<td>' . get_lang('Min') . ' ' . $threadhold1 . '</td>
<td><div style="color:' . $overlap_color . '">' . ($final_overlap < 0 ? 0 : intval($final_overlap)) . '</div></td>
</tr>
<tr>
<td><b>' . get_lang('Excess') . '</b></td>
<td>' . get_lang('Max') . ' ' . $threadhold2 . '</td>
<td><div style="color:' . $excess_color . '">' . ($final_excess < 0 ? 0 : intval($final_excess)) . '</div></td>
</tr>
<tr class="row_even">
<td><b>' . get_lang('Missing') . '</b></td>
<td>' . get_lang('Max') . ' ' . $threadhold3 . '</td>
<td><div style="color:' . $missing_color . '">' . ($final_missing < 0 ? 0 : intval($final_missing)) . '</div></td>
</tr>
</table>';
if ($next == 0) {
$try = $try_hotspot;
$lp = $lp_hotspot;
$destinationid = $select_question_hotspot;
$url = $url_hotspot;
} else {
//show if no error
//echo 'no error';
$comment = $answerComment = $objAnswerTmp->selectComment($nbrAnswers);
$answerDestination = $objAnswerTmp->selectDestination($nbrAnswers);
}
echo '<h1><div style="color:#333;">' . get_lang('Feedback') . '</div></h1>
<p style="text-align:center">';
$message = '<p>' . get_lang('YourDelineation') . '</p>';
$message .= $table_resume;
$message .= '<br />' . get_lang('ResultIs') . ' ' . $result_comment . '<br />';
if ($organs_at_risk_hit > 0) {
$message .= '<p><b>' . get_lang('OARHit') . '</b></p>';
}
$message .= '<p>' . $comment . '</p>';
echo $message;
} else {
echo $hotspot_delineation_result[0];
//prints message
$from_database = 1;
// the hotspot_solution.swf needs this variable
}
//save the score attempts
if (1) {
//getting the answer 1 or 0 comes from exercise_submit_modal.php
$final_answer = $hotspot_delineation_result[1];
if ($final_answer == 0) {
$questionScore = 0;
}
// we always insert the answer_id 1 = delineation
Event::saveQuestionAttempt($questionScore, 1, $quesId, $exeId, 0);
//in delineation mode, get the answer from $hotspot_delineation_result[1]
Event::saveExerciseAttemptHotspot($exeId, $quesId, 1, $hotspot_delineation_result[1], $exerciseResultCoordinates[$quesId]);
} else {
if ($final_answer == 0) {
$questionScore = 0;
$answer = 0;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0);
if (is_array($exerciseResultCoordinates[$quesId])) {
foreach ($exerciseResultCoordinates[$quesId] as $idx => $val) {
Event::saveExerciseAttemptHotspot($exeId, $quesId, $idx, 0, $val);
}
}
} else {
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0);
if (is_array($exerciseResultCoordinates[$quesId])) {
foreach ($exerciseResultCoordinates[$quesId] as $idx => $val) {
Event::saveExerciseAttemptHotspot($exeId, $quesId, $idx, $choice[$idx], $val);
}
}
}
}
$my_exe_id = $exeId;
}
}
if ($answerType == HOT_SPOT || $answerType == HOT_SPOT_ORDER) {
// We made an extra table for the answers
if ($show_result) {
// if ($origin != 'learnpath') {
echo '</table></td></tr>';
echo "\n <tr>\n <td colspan=\"2\">\n <p><em>" . get_lang('HotSpot') . "</em></p>\n <div id=\"hotspot-solution-{$questionId}\"></div>\n\n <script>\n \$(document).on('ready', function () {\n new HotspotQuestion({\n questionId: {$questionId},\n exerciseId: {$exeId},\n selector: '#hotspot-solution-{$questionId}',\n for: 'solution'\n });\n });\n </script>\n </td>\n </tr>\n ";
// }
}
}
//if ($origin != 'learnpath') {
if ($show_result) {
echo '</table>';
}
// }
}
unset($objAnswerTmp);
$totalWeighting += $questionWeighting;
// Store results directly in the database
// For all in one page exercises, the results will be
// stored by exercise_results.php (using the session)
if ($saved_results) {
if ($debug) {
error_log("Save question results {$saved_results}");
}
if ($debug) {
error_log(print_r($choice, 1));
}
if (empty($choice)) {
$choice = 0;
}
if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE || $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
if ($choice != 0) {
$reply = array_keys($choice);
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
Event::saveQuestionAttempt($questionScore, $ans . ':' . $choice[$ans], $quesId, $exeId, $i, $this->id);
if ($debug) {
error_log('result =>' . $questionScore . ' ' . $ans . ':' . $choice[$ans]);
}
}
} else {
Event::saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id);
}
} elseif ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
if ($choice != 0) {
$reply = array_keys($choice);
if ($debug) {
error_log("reply " . print_r($reply, 1) . "");
}
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
Event::saveQuestionAttempt($questionScore, $ans, $quesId, $exeId, $i, $this->id);
}
} else {
Event::saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id);
}
} elseif ($answerType == MULTIPLE_ANSWER_COMBINATION) {
if ($choice != 0) {
$reply = array_keys($choice);
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
Event::saveQuestionAttempt($questionScore, $ans, $quesId, $exeId, $i, $this->id);
}
} else {
Event::saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id);
}
} elseif (in_array($answerType, [MATCHING, DRAGGABLE, MATCHING_DRAGGABLE])) {
if (isset($matching)) {
foreach ($matching as $j => $val) {
Event::saveQuestionAttempt($questionScore, $val, $quesId, $exeId, $j, $this->id);
}
}
} elseif ($answerType == FREE_ANSWER) {
$answer = $choice;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id);
} elseif ($answerType == ORAL_EXPRESSION) {
$answer = $choice;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $nano);
} elseif (in_array($answerType, [UNIQUE_ANSWER, UNIQUE_ANSWER_IMAGE, UNIQUE_ANSWER_NO_OPTION])) {
$answer = $choice;
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id);
// } elseif ($answerType == HOT_SPOT || $answerType == HOT_SPOT_DELINEATION) {
} elseif ($answerType == HOT_SPOT) {
$answer = [];
if (isset($exerciseResultCoordinates[$questionId]) && !empty($exerciseResultCoordinates[$questionId])) {
Database::delete(Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT), ['hotspot_exe_id = ? AND hotspot_question_id = ? AND c_id = ?' => [$exeId, $questionId, api_get_course_int_id()]]);
foreach ($exerciseResultCoordinates[$questionId] as $idx => $val) {
$answer[] = $val;
Event::saveExerciseAttemptHotspot($exeId, $quesId, $idx, $choice[$idx], $val, false, $this->id);
}
}
Event::saveQuestionAttempt($questionScore, implode('|', $answer), $quesId, $exeId, 0, $this->id);
} else {
Event::saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id);
}
}
if ($propagate_neg == 0 && $questionScore < 0) {
$questionScore = 0;
}
if ($saved_results) {
$stat_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCISES);
$sql = 'UPDATE ' . $stat_table . ' SET
exe_result = exe_result + ' . floatval($questionScore) . '
WHERE exe_id = ' . $exeId;
if ($debug) {
error_log($sql);
}
Database::query($sql);
}
$return_array = array('score' => $questionScore, 'weight' => $questionWeighting, 'extra' => $extra_data, 'open_question' => $arrques, 'open_answer' => $arrans, 'answer_type' => $answerType);
return $return_array;
}
/**
* This function was originally found in the exercise_show.php
* @param int exe id
* @param int question id
* @param int the choice the user selected
* @param array the hotspot coordinates $hotspot[$question_id] = coordinates
* @param string function is called from 'exercise_show' or 'exercise_result'
* @param bool save results in the DB or just show the reponse
* @param bool gets information from DB or from the current selection
* @param bool show results or not
* @todo reduce parameters of this function
* @return string html code
*/
public function manageAnswers($exeId, $questionId, $choice, $from = 'exercise_show', $exerciseResultCoordinates = array(), $saved_results = true, $from_database = false, $show_result = true, $hotspot_delineation_result = array(), $updateResults = false)
{
global $debug;
global $learnpath_id, $learnpath_item_id;
//needed in order to use in the exercise_attempt() for the time
require_once api_get_path(LIBRARY_PATH) . 'geometry.lib.php';
$feedback_type = $this->feedback_type;
$propagate_neg = $this->selectPropagateNeg();
if ($debug) {
error_log("<------ manage_answer ------> ");
error_log('exe_id: ' . $exeId);
error_log('$from: ' . $from);
error_log('$saved_results: ' . intval($saved_results));
error_log('$from_database: ' . intval($from_database));
error_log('$show_result: ' . $show_result);
error_log('$propagate_neg: ' . $propagate_neg);
error_log('$exerciseResultCoordinates: ' . print_r($exerciseResultCoordinates, 1));
error_log('$hotspot_delineation_result: ' . print_r($hotspot_delineation_result, 1));
error_log('$learnpath_id: ' . $learnpath_id);
error_log('$learnpath_item_id: ' . $learnpath_item_id);
error_log('$choice: ' . print_r($choice, 1));
}
$extra_data = array();
$final_overlap = 0;
$final_missing = 0;
$final_excess = 0;
$overlap_color = 0;
$missing_color = 0;
$excess_color = 0;
$threadhold1 = 0;
$threadhold2 = 0;
$threadhold3 = 0;
$arrques = null;
$arrans = null;
$questionId = intval($questionId);
$exeId = intval($exeId);
$TBL_TRACK_ATTEMPT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
$table_ans = Database::get_course_table(TABLE_QUIZ_ANSWER);
// Creates a temporary Question object
$course_id = api_get_course_int_id();
$objQuestionTmp = Question::read($questionId, $course_id);
if ($objQuestionTmp === false) {
return false;
}
$questionName = $objQuestionTmp->selectTitle();
$questionWeighting = $objQuestionTmp->selectWeighting();
$answerType = $objQuestionTmp->selectType();
$quesId = $objQuestionTmp->selectId();
$extra = $objQuestionTmp->extra;
$next = 1;
//not for now
//Extra information of the question
if (!empty($extra)) {
$extra = explode(':', $extra);
if ($debug) {
error_log(print_r($extra, 1));
}
//Fixes problems with negatives values using intval
$true_score = intval($extra[0]);
$false_score = intval($extra[1]);
$doubt_score = intval($extra[2]);
}
$totalWeighting = 0;
$totalScore = 0;
// Destruction of the Question object
unset($objQuestionTmp);
// Construction of the Answer object
$objAnswerTmp = new Answer($questionId, null, $this);
$nbrAnswers = $objAnswerTmp->selectNbrAnswers();
if ($debug) {
error_log('Count of answers: ' . $nbrAnswers);
error_log('$answerType: ' . $answerType);
}
if ($answerType == FREE_ANSWER || $answerType == ORAL_EXPRESSION) {
$nbrAnswers = 1;
}
$nano = null;
if ($answerType == ORAL_EXPRESSION) {
$exe_info = get_exercise_results_by_attempt($exeId);
$exe_info = $exe_info[$exeId];
$params = array();
$params['course_id'] = api_get_course_int_id();
$params['session_id'] = api_get_session_id();
$params['user_id'] = isset($exe_info['exe_user_id']) ? $exe_info['exe_user_id'] : api_get_user_id();
$params['exercise_id'] = isset($exe_info['exe_exo_id']) ? $exe_info['exe_exo_id'] : $this->id;
$params['question_id'] = $questionId;
$params['exe_id'] = isset($exe_info['exe_id']) ? $exe_info['exe_id'] : $exeId;
$nano = new Nanogong($params);
//probably this attempt came in an exercise all question by page
if ($feedback_type == 0) {
$nano->replace_with_real_exe($exeId);
}
}
$user_answer = '';
// Get answer list for matching
$sql_answer = 'SELECT iid, answer FROM ' . $table_ans . ' WHERE question_id = "' . $questionId . '" ';
$res_answer = Database::query($sql_answer);
$answer_matching = array();
$answer_list = array();
while ($real_answer = Database::fetch_array($res_answer)) {
$answer_matching[$real_answer['iid']] = $real_answer['answer'];
$answer_list[] = $real_answer['iid'];
}
if ($answerType == FREE_ANSWER || $answerType == ORAL_EXPRESSION) {
$nbrAnswers = 1;
$answer_list[] = 1;
}
$real_answers = array();
$quiz_question_options = Question::readQuestionOption($questionId, $course_id);
$organs_at_risk_hit = 0;
$questionScore = 0;
if ($debug) {
error_log('<<-- Start answer loop -->');
}
$answer_correct_array = array();
//for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
$counter = 1;
foreach ($answer_list as $answerId) {
/** @var \Answer $objAnswerTmp */
$answer = $objAnswerTmp->selectAnswer($answerId);
$answerComment = $objAnswerTmp->selectComment($answerId);
$answerCorrect = $objAnswerTmp->isCorrect($answerId);
$answerWeighting = (double) $objAnswerTmp->selectWeighting($answerId);
//$numAnswer = $objAnswerTmp->selectAutoId($answerId);
$numAnswer = $answerId;
$answer_correct_array[$answerId] = (bool) $answerCorrect;
if ($debug) {
error_log("answer auto id: {$numAnswer} ");
error_log("answer correct: {$answerCorrect} ");
}
//Delineation
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates(1);
$answer_delineation_destination = $objAnswerTmp->selectDestination(1);
switch ($answerType) {
// for unique answer
case UNIQUE_ANSWER:
case UNIQUE_ANSWER_IMAGE:
case UNIQUE_ANSWER_NO_OPTION:
if ($from_database) {
$queryans = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . " WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resultans = Database::query($queryans);
$choice = Database::result($resultans, 0, "answer");
$studentChoice = $choice == $numAnswer ? 1 : 0;
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
} else {
$studentChoice = $choice == $numAnswer ? 1 : 0;
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
break;
// for multiple answers
// for multiple answers
case MULTIPLE_ANSWER_TRUE_FALSE:
if ($from_database) {
$choice = array();
$queryans = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . " WHERE exe_id = " . $exeId . " AND question_id = " . $questionId;
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$result = explode(':', $ind);
$my_answer_id = $result[0];
$option = $result[1];
$choice[$my_answer_id] = $option;
}
$studentChoice = $choice[$numAnswer];
} else {
$studentChoice = $choice[$numAnswer];
}
if (!empty($studentChoice)) {
if ($studentChoice == $answerCorrect) {
$questionScore += $true_score;
} else {
if ($quiz_question_options[$studentChoice]['name'] != "Don't know") {
$questionScore += $false_score;
} else {
$questionScore += $doubt_score;
}
}
} else {
//if no result then the user just hit don't know
$studentChoice = 3;
$questionScore += $doubt_score;
}
$totalScore = $questionScore;
break;
case MULTIPLE_ANSWER:
//2
if ($from_database) {
$choice = array();
$queryans = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . " WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = isset($choice[$numAnswer]) ? $choice[$numAnswer] : null;
$real_answers[$answerId] = (bool) $studentChoice;
if ($studentChoice) {
$questionScore += $answerWeighting;
}
} else {
$studentChoice = isset($choice[$numAnswer]) ? $choice[$numAnswer] : null;
$real_answers[$answerId] = (bool) $studentChoice;
if (isset($studentChoice)) {
$questionScore += $answerWeighting;
}
}
$totalScore += $answerWeighting;
if ($debug) {
error_log("studentChoice: {$studentChoice}");
}
break;
case GLOBAL_MULTIPLE_ANSWER:
if ($from_database) {
$choice = array();
$queryans = "SELECT answer FROM {$TBL_TRACK_ATTEMPT} WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$choice[$ind] = 1;
}
$studentChoice = $choice[$numAnswer];
$real_answers[$answerId] = (bool) $studentChoice;
if ($studentChoice) {
$questionScore += $answerWeighting;
}
} else {
$studentChoice = $choice[$numAnswer];
if (isset($studentChoice)) {
$questionScore += $answerWeighting;
}
$real_answers[$answerId] = (bool) $studentChoice;
}
$totalScore += $answerWeighting;
if ($debug) {
error_log("studentChoice: {$studentChoice}");
}
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
if ($from_database) {
$queryans = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . " where exe_id = " . $exeId . " AND question_id= " . $questionId;
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$ind = $row['answer'];
$result = explode(':', $ind);
$my_answer_id = $result[0];
$option = $result[1];
$choice[$my_answer_id] = $option;
}
//$numAnswer = $objAnswerTmp->selectAutoId($answerId);
$numAnswer = $answerId;
$studentChoice = $choice[$numAnswer];
if ($answerCorrect == $studentChoice) {
//$answerCorrect = 1;
$real_answers[$answerId] = true;
} else {
//$answerCorrect = 0;
$real_answers[$answerId] = false;
}
} else {
$studentChoice = $choice[$numAnswer];
if ($answerCorrect == $studentChoice) {
//$answerCorrect = 1;
$real_answers[$answerId] = true;
} else {
//$answerCorrect = 0;
$real_answers[$answerId] = false;
}
}
break;
case MULTIPLE_ANSWER_COMBINATION:
if ($from_database) {
$queryans = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . " where exe_id = '" . $exeId . "' and question_id= '" . $questionId . "'";
$resultans = Database::query($queryans);
while ($row = Database::fetch_array($resultans)) {
$choice[$row['answer']] = 1;
}
$studentChoice = $choice[$answerId];
if ($answerCorrect == 1) {
if ($studentChoice) {
$real_answers[$answerId] = true;
} else {
$real_answers[$answerId] = false;
}
} else {
if ($studentChoice) {
$real_answers[$answerId] = false;
} else {
$real_answers[$answerId] = true;
}
}
} else {
$studentChoice = $choice[$numAnswer];
if ($answerCorrect == 1) {
if ($studentChoice) {
$real_answers[$answerId] = true;
} else {
$real_answers[$answerId] = false;
}
} else {
if ($studentChoice) {
$real_answers[$answerId] = false;
} else {
$real_answers[$answerId] = true;
}
}
}
break;
// for fill in the blanks
// for fill in the blanks
case FILL_IN_BLANKS:
// the question is encoded like this
// [A] B [C] D [E] F::10,10,10@1
// number 1 before the "@" means that is a switchable fill in blank question
// [A] B [C] D [E] F::10,10,10@ or [A] B [C] D [E] F::10,10,10
// means that is a normal fill blank question
// first we explode the "::"
$pre_array = explode('::', $answer);
// is switchable fill blank or not
$last = count($pre_array) - 1;
$is_set_switchable = explode('@', $pre_array[$last]);
$switchable_answer_set = false;
if (isset($is_set_switchable[1]) && $is_set_switchable[1] == 1) {
$switchable_answer_set = true;
}
$answer = '';
for ($k = 0; $k < $last; $k++) {
$answer .= $pre_array[$k];
}
// splits weightings that are joined with a comma
$answerWeighting = explode(',', $is_set_switchable[0]);
// we save the answer because it will be modified
//$temp = $answer;
$temp = $answer;
$answer = '';
$j = 0;
//initialise answer tags
$user_tags = $correct_tags = $real_text = array();
// the loop will stop at the end of the text
while (1) {
// quits the loop if there are no more blanks (detect '[')
if (($pos = api_strpos($temp, '[')) === false) {
// adds the end of the text
$answer = $temp;
/* // Deprecated code
// TeX parsing - replacement of texcode tags
$answer = str_replace("{texcode}", $texstring, $answer);
*/
$real_text[] = $answer;
break;
//no more "blanks", quit the loop
}
// adds the piece of text that is before the blank
//and ends with '[' into a general storage array
$real_text[] = api_substr($temp, 0, $pos + 1);
$answer .= api_substr($temp, 0, $pos + 1);
//take the string remaining (after the last "[" we found)
$temp = api_substr($temp, $pos + 1);
// quit the loop if there are no more blanks, and update $pos to the position of next ']'
if (($pos = api_strpos($temp, ']')) === false) {
// adds the end of the text
$answer .= $temp;
break;
}
if ($from_database) {
$queryfill = "SELECT answer FROM " . $TBL_TRACK_ATTEMPT . " WHERE exe_id = " . $exeId . " AND question_id= " . Database::escape_string($questionId);
$resfill = Database::query($queryfill);
if (Database::num_rows($resfill)) {
$str = Database::result($resfill, 0, 'answer');
api_preg_match_all('#\\[([^[]*)\\]#', $str, $arr);
$str = str_replace('\\r\\n', '', $str);
$choice = $arr[1];
$tmp = api_strrpos($choice[$j], ' / ');
$choice[$j] = api_substr($choice[$j], 0, $tmp);
$choice[$j] = trim($choice[$j]);
//Needed to let characters ' and " to work as part of an answer
$choice[$j] = stripslashes($choice[$j]);
}
} else {
$choice[$j] = trim($choice[$j]);
}
//No idea why we api_strtolower user reponses
//$user_tags[] = api_strtolower($choice[$j]);
$user_tags[] = $choice[$j];
//put the contents of the [] answer tag into correct_tags[]
//$correct_tags[] = api_strtolower(api_substr($temp, 0, $pos));
$correct_tags[] = api_substr($temp, 0, $pos);
$j++;
$temp = api_substr($temp, $pos + 1);
}
$answer = '';
$real_correct_tags = $correct_tags;
$chosen_list = array();
for ($i = 0; $i < count($real_correct_tags); $i++) {
if ($i == 0) {
$answer .= $real_text[0];
}
if (!$switchable_answer_set) {
//needed to parse ' and " characters
$user_tags[$i] = stripslashes($user_tags[$i]);
if ($correct_tags[$i] == $user_tags[$i]) {
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $correct_tags[$i];
} elseif (!empty($user_tags[$i])) {
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= ' ';
}
} else {
// switchable fill in the blanks
if (in_array($user_tags[$i], $correct_tags)) {
$chosen_list[] = $user_tags[$i];
$correct_tags = array_diff($correct_tags, $chosen_list);
// gives the related weighting to the student
$questionScore += $answerWeighting[$i];
// increments total score
$totalScore += $answerWeighting[$i];
// adds the word in green at the end of the string
$answer .= $user_tags[$i];
} elseif (!empty($user_tags[$i])) {
// else if the word entered by the student IS NOT the same as the one defined by the professor
// adds the word in red at the end of the string, and strikes it
$answer .= '<font color="red"><s>' . $user_tags[$i] . '</s></font>';
} else {
// adds a tabulation if no word has been typed by the student
$answer .= ' ';
}
}
// adds the correct word, followed by ] to close the blank
$answer .= ' / <font color="green"><b>' . $real_correct_tags[$i] . '</b></font>]';
if (isset($real_text[$i + 1])) {
$answer .= $real_text[$i + 1];
}
}
break;
// for free answer
// for free answer
case FREE_ANSWER:
if ($from_database) {
$query = "SELECT answer, marks FROM " . $TBL_TRACK_ATTEMPT . " WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resq = Database::query($query);
$questionScore = 0;
$choice = null;
if ($resq) {
$row = Database::fetch_array($resq);
$choice = $row['answer'];
$questionScore = $row['marks'];
$choice = str_replace('\\r\\n', '', $choice);
$choice = stripslashes($choice);
}
if ($questionScore == -1) {
$totalScore += 0;
} else {
$totalScore += $questionScore;
}
if ($questionScore == '') {
$questionScore = 0;
}
$arrques = $questionName;
$arrans = $choice;
} else {
$studentChoice = $choice;
if ($studentChoice) {
//Fixing negative puntation see #2193
$questionScore = 0;
$totalScore += 0;
}
}
break;
case ORAL_EXPRESSION:
if ($from_database) {
$query = "SELECT answer, marks FROM " . $TBL_TRACK_ATTEMPT . " WHERE exe_id = '" . $exeId . "' AND question_id= '" . $questionId . "'";
$resq = Database::query($query);
$choice = Database::result($resq, 0, 'answer');
$choice = str_replace('\\r\\n', '', $choice);
$choice = stripslashes($choice);
$questionScore = Database::result($resq, 0, "marks");
if ($questionScore == -1) {
$totalScore += 0;
} else {
$totalScore += $questionScore;
}
$arrques = $questionName;
$arrans = $choice;
} else {
$studentChoice = $choice;
if ($studentChoice) {
//Fixing negative puntation see #2193
$questionScore = 0;
$totalScore += 0;
}
}
break;
// for matching
// for matching
case DRAGGABLE:
case MATCHING:
if ($from_database) {
$sql_answer = 'SELECT iid, answer FROM ' . $table_ans . ' WHERE c_id = ' . $course_id . ' AND question_id="' . $questionId . '" AND correct=0';
$res_answer = Database::query($sql_answer);
// getting the real answer
$real_list = array();
while ($real_answer = Database::fetch_array($res_answer)) {
$real_list[$real_answer['iid']] = $real_answer['answer'];
}
$sql_select_answer = "SELECT iid, answer, correct FROM {$table_ans}\n WHERE c_id = {$course_id} AND question_id = '{$questionId}' AND correct <> 0\n ORDER BY iid";
$res_answers = Database::query($sql_select_answer);
$questionScore = 0;
while ($a_answers = Database::fetch_array($res_answers)) {
$i_answer_id = $a_answers['iid'];
//3
$s_answer_label = $a_answers['answer'];
// your daddy - your mother
$i_answer_correct_answer = $a_answers['correct'];
//1 - 2
$answerIdCorrect = $a_answers['correct'];
$sql_user_answer = "SELECT answer FROM {$TBL_TRACK_ATTEMPT}\n WHERE exe_id = '{$exeId}' AND\n question_id = '{$questionId}' AND\n position = '{$i_answer_id}'";
$res_user_answer = Database::query($sql_user_answer);
if (Database::num_rows($res_user_answer)) {
// Rich - good looking
$result = Database::fetch_array($res_user_answer, 'ASSOC');
$s_user_answer = $result['answer'];
} else {
$s_user_answer = 0;
}
$i_answerWeighting = $objAnswerTmp->selectWeighting($i_answer_id);
if ($answerType == MATCHING) {
$i_answer_correct_answer = $objAnswerTmp->getAnswerIdFromList($i_answer_correct_answer);
}
$user_answer = '';
if (!empty($s_user_answer)) {
if ($s_user_answer == $i_answer_correct_answer) {
$questionScore += $i_answerWeighting;
$totalScore += $i_answerWeighting;
if ($answerType == DRAGGABLE) {
$user_answer = Display::label(get_lang('Correct'), 'success');
} else {
$user_answer = '<span>' . $real_list[$answerIdCorrect] . '</span>';
}
} else {
if ($answerType == DRAGGABLE) {
$user_answer = Display::label(get_lang('NotCorrect'), 'important');
} else {
$user_answer = '<span style="color: #FF0000; text-decoration: line-through;">' . $real_list[$s_user_answer] . '</span>';
}
}
} else {
if ($answerType == DRAGGABLE) {
$user_answer = Display::label(get_lang('Incorrect'), 'important');
}
}
if ($show_result) {
echo '<tr>';
echo '<td>' . $s_answer_label . '</td>';
echo '<td>' . $user_answer . '';
if ($answerType == MATCHING) {
echo '<b><span style="color: #008000;"> ' . $real_list[$answerIdCorrect] . '</span></b>';
}
echo '</td>';
echo '</tr>';
}
}
break 2;
//break the switch and the "for" condition
} else {
$numAnswer = $answerId;
if ($answerCorrect) {
$matchingKey = $choice[$numAnswer];
if ($answerType == DRAGGABLE) {
$matchingKey = $numAnswer;
}
if ($answerType == MATCHING) {
$answerCorrect = $objAnswerTmp->getAnswerIdFromList($answerCorrect);
$matchingKey = $numAnswer;
}
if ($answerCorrect == $choice[$numAnswer]) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$user_answer = '<span>' . $answer_matching[$matchingKey] . '</span>';
} else {
if ($choice[$numAnswer]) {
$user_answer = '<span style="color: #FF0000; text-decoration: line-through;">' . $answer_matching[$matchingKey] . '</span>';
}
}
$matching[$numAnswer] = $choice[$numAnswer];
}
break;
}
// for hotspot with no order
// for hotspot with no order
case HOT_SPOT:
if ($from_database) {
if ($show_result) {
$TBL_TRACK_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$query = "SELECT hotspot_correct\n FROM " . $TBL_TRACK_HOTSPOT . "\n WHERE hotspot_exe_id = '" . $exeId . "' and\n hotspot_question_id= '" . $questionId . "' AND\n hotspot_answer_id='" . Database::escape_string($answerId) . "'";
$resq = Database::query($query);
$studentChoice = Database::result($resq, 0, "hotspot_correct");
if ($studentChoice == 1) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
} else {
if (isset($choice[$answerId])) {
$studentChoice = $choice[$answerId];
} else {
$studentChoice = false;
}
if ($studentChoice) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
break;
// @todo never added to chamilo
//for hotspot with fixed order
// @todo never added to chamilo
//for hotspot with fixed order
case HOT_SPOT_ORDER:
$studentChoice = $choice['order'][$answerId];
if ($studentChoice == $answerId) {
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
$studentChoice = true;
} else {
$studentChoice = false;
}
break;
// for hotspot with delineation
// for hotspot with delineation
case HOT_SPOT_DELINEATION:
if ($from_database) {
// getting the user answer
$TBL_TRACK_HOTSPOT = Database::get_main_table(TABLE_STATISTIC_TRACK_E_HOTSPOT);
$query = "SELECT hotspot_correct, hotspot_coordinate\n FROM " . $TBL_TRACK_HOTSPOT . "\n WHERE hotspot_exe_id = '" . $exeId . "' AND\n hotspot_question_id= '" . $questionId . "' AND\n hotspot_answer_id='1'";
//by default we take 1 because it's a delineation
$resq = Database::query($query);
$row = Database::fetch_array($resq, 'ASSOC');
$choice = $row['hotspot_correct'];
$user_answer = $row['hotspot_coordinate'];
// THIS is very important otherwise the poly_compile will throw an error!!
// round-up the coordinates
$coords = explode('/', $user_answer);
$user_array = '';
foreach ($coords as $coord) {
list($x, $y) = explode(';', $coord);
$user_array .= round($x) . ';' . round($y) . '/';
}
$user_array = substr($user_array, 0, -1);
} else {
if ($studentChoice) {
$newquestionList[] = $questionId;
}
if ($answerId === 1) {
$studentChoice = $choice[$answerId];
$questionScore += $answerWeighting;
if ($hotspot_delineation_result[1] == 1) {
$totalScore += $answerWeighting;
//adding the total
}
}
}
$_SESSION['hotspot_coord'][1] = $delineation_cord;
$_SESSION['hotspot_dest'][1] = $answer_delineation_destination;
break;
}
// end switch Answertype
global $origin;
if ($show_result) {
if ($debug) {
error_log('show result ' . $show_result);
}
if ($from == 'exercise_result') {
if ($debug) {
error_log('Showing questions $from ' . $from);
}
//display answers (if not matching type, or if the answer is correct)
if (!in_array($answerType, array(DRAGGABLE, MATCHING)) || $answerCorrect) {
if (in_array($answerType, array(UNIQUE_ANSWER, UNIQUE_ANSWER_IMAGE, UNIQUE_ANSWER_NO_OPTION, MULTIPLE_ANSWER, MULTIPLE_ANSWER_COMBINATION, GLOBAL_MULTIPLE_ANSWER))) {
ExerciseShowFunctions::display_unique_or_multiple_answer($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, 0, 0, 0);
} elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
ExerciseShowFunctions::display_multiple_answer_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, 0, $questionId, 0);
} elseif ($answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
ExerciseShowFunctions::display_multiple_answer_combination_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, 0, 0, 0);
} elseif ($answerType == FILL_IN_BLANKS) {
ExerciseShowFunctions::display_fill_in_blanks_answer($feedback_type, $answer, 0, 0);
} elseif ($answerType == FREE_ANSWER) {
ExerciseShowFunctions::display_free_answer($feedback_type, $choice, $exeId, $questionId, $questionScore);
} elseif ($answerType == ORAL_EXPRESSION) {
// to store the details of open questions in an array to be used in mail
ExerciseShowFunctions::display_oral_expression_answer($choice, 0, 0, $nano);
} elseif ($answerType == HOT_SPOT) {
ExerciseShowFunctions::display_hotspot_answer($feedback_type, $counter, $answer, $studentChoice, $answerComment);
} elseif ($answerType == HOT_SPOT_ORDER) {
ExerciseShowFunctions::display_hotspot_order_answer($feedback_type, $answerId, $answer, $studentChoice, $answerComment);
} elseif ($answerType == HOT_SPOT_DELINEATION) {
$user_answer = $_SESSION['exerciseResultCoordinates'][$questionId];
// Round-up the coordinates
$coords = explode('/', $user_answer);
$user_array = '';
foreach ($coords as $coord) {
list($x, $y) = explode(';', $coord);
$user_array .= round($x) . ';' . round($y) . '/';
}
$user_array = substr($user_array, 0, -1);
if ($next) {
$user_answer = $user_array;
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
//calculating the area
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
//$overlap = round(polygons_overlap($poly_answer,$poly_user)); //this is an area in pixels
if ($debug > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
} else {
// the final overlap is the percentage of the initial polygon that is overlapped by the user's polygon
$final_overlap = round((double) $overlap / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final overlap is ' . $final_overlap, 0);
}
// the final missing area is the percentage of the initial polygon that is not overlapped by the user's polygon
$final_missing = 100 - $final_overlap;
if ($debug > 1) {
error_log(__LINE__ . ' - Final missing is ' . $final_missing, 0);
}
// the final excess area is the percentage of the initial polygon's size that is covered by the user's polygon outside of the initial polygon
$final_excess = round(((double) $poly_user_area - (double) $overlap) / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final excess is ' . $final_excess, 0);
}
}
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
$threadhold_total = $destination_items[0];
$threadhold_items = explode(';', $threadhold_total);
$threadhold1 = $threadhold_items[0];
// overlap
$threadhold2 = $threadhold_items[1];
// excess
$threadhold3 = $threadhold_items[2];
//missing
// if is delineation
if ($answerId === 1) {
//setting colors
if ($final_overlap >= $threadhold1) {
$overlap_color = true;
//echo 'a';
}
//echo $excess.'-'.$threadhold2;
if ($final_excess <= $threadhold2) {
$excess_color = true;
//echo 'b';
}
//echo '--------'.$missing.'-'.$threadhold3;
if ($final_missing <= $threadhold3) {
$missing_color = true;
//echo 'c';
}
// if pass
if ($final_overlap >= $threadhold1 && $final_missing <= $threadhold3 && $final_excess <= $threadhold2) {
$next = 1;
//go to the oars
$result_comment = get_lang('Acceptable');
$final_answer = 1;
// do not update with update_exercise_attempt
} else {
$next = 0;
$result_comment = get_lang('Unacceptable');
$comment = $answerDestination = $objAnswerTmp->selectComment(1);
$answerDestination = $objAnswerTmp->selectDestination(1);
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
}
} elseif ($answerId > 1) {
if ($objAnswerTmp->selectHotspotType($answerId) == 'noerror') {
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is of type noerror', 0);
}
//type no error shouldn't be treated
$next = 1;
continue;
}
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is >1 so we\'re probably in OAR', 0);
}
//check the intersection between the oar and the user
//echo 'user'; print_r($x_user_list); print_r($y_user_list);
//echo 'official';print_r($x_list);print_r($y_list);
//$result = get_intersection_data($x_list,$y_list,$x_user_list,$y_user_list);
$inter = $result['success'];
//$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates($answerId);
$poly_answer = convert_coordinates($delineation_cord, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$overlap = poly_touch($poly_user_compiled, $poly_answer_compiled, $max_coord);
if ($overlap == false) {
//all good, no overlap
$next = 1;
continue;
} else {
if ($debug > 0) {
error_log(__LINE__ . ' - Overlap is ' . $overlap . ': OAR hit', 0);
}
$organs_at_risk_hit++;
//show the feedback
$next = 0;
$comment = $answerDestination = $objAnswerTmp->selectComment($answerId);
$answerDestination = $objAnswerTmp->selectDestination($answerId);
$destination_items = explode('@@', $answerDestination);
$try_hotspot = $destination_items[1];
$lp_hotspot = $destination_items[2];
$select_question_hotspot = $destination_items[3];
$url_hotspot = $destination_items[4];
}
}
} else {
// the first delineation feedback
if ($debug > 0) {
error_log(__LINE__ . ' first', 0);
}
}
} elseif ($answerType == MATCHING) {
//if ($origin != 'learnpath') {
echo '<tr>';
echo '<td>' . $answer_matching[$answerId] . '</td><td>' . $user_answer . ' / <b><span style="color: #008000;">' . $answer_matching[$answerCorrect] . '</span></b></td>';
echo '</tr>';
//}
}
}
} else {
if ($debug) {
error_log('Showing questions $from ' . $from);
}
switch ($answerType) {
case UNIQUE_ANSWER:
case UNIQUE_ANSWER_IMAGE:
case UNIQUE_ANSWER_NO_OPTION:
case MULTIPLE_ANSWER:
case GLOBAL_MULTIPLE_ANSWER:
case MULTIPLE_ANSWER_COMBINATION:
if ($answerId == 1) {
ExerciseShowFunctions::display_unique_or_multiple_answer($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, $answerId);
} else {
ExerciseShowFunctions::display_unique_or_multiple_answer($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, "");
}
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
if ($answerId == 1) {
ExerciseShowFunctions::display_multiple_answer_combination_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, $answerId);
} else {
ExerciseShowFunctions::display_multiple_answer_combination_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, "");
}
break;
case MULTIPLE_ANSWER_TRUE_FALSE:
if ($answerId == 1) {
ExerciseShowFunctions::display_multiple_answer_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, $answerId);
} else {
ExerciseShowFunctions::display_multiple_answer_true_false($feedback_type, $answerType, $studentChoice, $answer, $answerComment, $answerCorrect, $exeId, $questionId, "");
}
break;
case FILL_IN_BLANKS:
ExerciseShowFunctions::display_fill_in_blanks_answer($feedback_type, $answer, $exeId, $questionId);
break;
case FREE_ANSWER:
echo ExerciseShowFunctions::display_free_answer($feedback_type, $choice, $exeId, $questionId, $questionScore);
break;
case ORAL_EXPRESSION:
echo '<tr>
<td valign="top">' . ExerciseShowFunctions::display_oral_expression_answer($feedback_type, $choice, $exeId, $questionId, $nano) . '</td>
</tr>
</table>';
break;
case HOT_SPOT:
ExerciseShowFunctions::display_hotspot_answer($feedback_type, $counter, $answer, $studentChoice, $answerComment);
break;
case HOT_SPOT_DELINEATION:
$user_answer = $user_array;
if ($next) {
$user_answer = $user_array;
// we compare only the delineation not the other points
$answer_question = $_SESSION['hotspot_coord'][1];
$answerDestination = $_SESSION['hotspot_dest'][1];
//calculating the area
$poly_user = convert_coordinates($user_answer, '/');
$poly_answer = convert_coordinates($answer_question, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_user_compiled = poly_compile($poly_user, $max_coord);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$poly_results = poly_result($poly_answer_compiled, $poly_user_compiled, $max_coord);
$overlap = $poly_results['both'];
$poly_answer_area = $poly_results['s1'];
$poly_user_area = $poly_results['s2'];
$missing = $poly_results['s1Only'];
$excess = $poly_results['s2Only'];
//$overlap = round(polygons_overlap($poly_answer,$poly_user)); //this is an area in pixels
if ($debug > 0) {
error_log(__LINE__ . ' - Polygons results are ' . print_r($poly_results, 1), 0);
}
if ($overlap < 1) {
//shortcut to avoid complicated calculations
$final_overlap = 0;
$final_missing = 100;
$final_excess = 100;
} else {
// the final overlap is the percentage of the initial polygon that is overlapped by the user's polygon
$final_overlap = round((double) $overlap / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final overlap is ' . $final_overlap, 0);
}
// the final missing area is the percentage of the initial polygon that is not overlapped by the user's polygon
$final_missing = 100 - $final_overlap;
if ($debug > 1) {
error_log(__LINE__ . ' - Final missing is ' . $final_missing, 0);
}
// the final excess area is the percentage of the initial polygon's size that is covered by the user's polygon outside of the initial polygon
$final_excess = round(((double) $poly_user_area - (double) $overlap) / (double) $poly_answer_area * 100);
if ($debug > 1) {
error_log(__LINE__ . ' - Final excess is ' . $final_excess, 0);
}
}
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
$threadhold_total = $destination_items[0];
$threadhold_items = explode(';', $threadhold_total);
$threadhold1 = $threadhold_items[0];
// overlap
$threadhold2 = $threadhold_items[1];
// excess
$threadhold3 = $threadhold_items[2];
//missing
// if is delineation
if ($answerId === 1) {
//setting colors
if ($final_overlap >= $threadhold1) {
$overlap_color = true;
//echo 'a';
}
//echo $excess.'-'.$threadhold2;
if ($final_excess <= $threadhold2) {
$excess_color = true;
//echo 'b';
}
//echo '--------'.$missing.'-'.$threadhold3;
if ($final_missing <= $threadhold3) {
$missing_color = true;
//echo 'c';
}
// if pass
if ($final_overlap >= $threadhold1 && $final_missing <= $threadhold3 && $final_excess <= $threadhold2) {
$next = 1;
//go to the oars
$result_comment = get_lang('Acceptable');
$final_answer = 1;
// do not update with update_exercise_attempt
} else {
$next = 0;
$result_comment = get_lang('Unacceptable');
$comment = $answerDestination = $objAnswerTmp->selectComment(1);
$answerDestination = $objAnswerTmp->selectDestination(1);
//checking the destination parameters parsing the "@@"
$destination_items = explode('@@', $answerDestination);
}
} elseif ($answerId > 1) {
if ($objAnswerTmp->selectHotspotType($answerId) == 'noerror') {
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is of type noerror', 0);
}
//type no error shouldn't be treated
$next = 1;
continue;
}
if ($debug > 0) {
error_log(__LINE__ . ' - answerId is >1 so we\'re probably in OAR', 0);
}
//check the intersection between the oar and the user
//echo 'user'; print_r($x_user_list); print_r($y_user_list);
//echo 'official';print_r($x_list);print_r($y_list);
//$result = get_intersection_data($x_list,$y_list,$x_user_list,$y_user_list);
$inter = $result['success'];
//$delineation_cord=$objAnswerTmp->selectHotspotCoordinates($answerId);
$delineation_cord = $objAnswerTmp->selectHotspotCoordinates($answerId);
$poly_answer = convert_coordinates($delineation_cord, '|');
$max_coord = poly_get_max($poly_user, $poly_answer);
$poly_answer_compiled = poly_compile($poly_answer, $max_coord);
$overlap = poly_touch($poly_user_compiled, $poly_answer_compiled, $max_coord);
if ($overlap == false) {
//all good, no overlap
$next = 1;
continue;
} else {
if ($debug > 0) {
error_log(__LINE__ . ' - Overlap is ' . $overlap . ': OAR hit', 0);
}
$organs_at_risk_hit++;
//show the feedback
$next = 0;
$comment = $answerDestination = $objAnswerTmp->selectComment($answerId);
$answerDestination = $objAnswerTmp->selectDestination($answerId);
$destination_items = explode('@@', $answerDestination);
$try_hotspot = $destination_items[1];
$lp_hotspot = $destination_items[2];
$select_question_hotspot = $destination_items[3];
$url_hotspot = $destination_items[4];
}
}
} else {
// the first delineation feedback
if ($debug > 0) {
error_log(__LINE__ . ' first', 0);
}
}
break;
case HOT_SPOT_ORDER:
ExerciseShowFunctions::display_hotspot_order_answer($feedback_type, $answerId, $answer, $studentChoice, $answerComment);
break;
case DRAGGABLE:
case MATCHING:
//if ($origin != 'learnpath') {
echo '<tr>';
echo '<td>' . $answer_matching[$answerId] . '</td><td>' . $user_answer . ' / <b><span style="color: #008000;">' . $answer_matching[$answerCorrect] . '</span></b></td>';
echo '</tr>';
//}
break;
}
}
}
$counter++;
}
// end for that loops over all answers of the current question
if ($debug) {
error_log('<-- end answer loop -->');
}
$final_answer = true;
foreach ($real_answers as $my_answer) {
if (!$my_answer) {
$final_answer = false;
}
}
//we add the total score after dealing with the answers
if ($answerType == MULTIPLE_ANSWER_COMBINATION || $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
if ($final_answer) {
//getting only the first score where we save the weight of all the question
$answerWeighting = $objAnswerTmp->selectWeighting($objAnswerTmp->getRealAnswerIdFromList(1));
$questionScore += $answerWeighting;
$totalScore += $answerWeighting;
}
}
//Fixes multiple answer question in order to be exact
if ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
$diff = @array_diff($answer_correct_array, $real_answers);
/*
* All good answers or nothing works like exact
$counter = 1;
$correct_answer = true;
foreach ($real_answers as $my_answer) {
if ($debug) error_log(" my_answer: $my_answer answer_correct_array[counter]: ".$answer_correct_array[$counter]);
if ($my_answer != $answer_correct_array[$counter]) {
$correct_answer = false;
break;
}
$counter++;
} */
if ($debug) {
error_log("answer_correct_array: " . print_r($answer_correct_array, 1) . "");
error_log("real_answers: " . print_r($real_answers, 1) . "");
}
// This makes the result non exact
if (!empty($diff)) {
//$questionScore = 0;
}
}
$extra_data = array('final_overlap' => $final_overlap, 'final_missing' => $final_missing, 'final_excess' => $final_excess, 'overlap_color' => $overlap_color, 'missing_color' => $missing_color, 'excess_color' => $excess_color, 'threadhold1' => $threadhold1, 'threadhold2' => $threadhold2, 'threadhold3' => $threadhold3);
if ($from == 'exercise_result') {
// if answer is hotspot. To the difference of exercise_show.php, we use the results from the session (from_db=0)
// TODO Change this, because it is wrong to show the user some results that haven't been stored in the database yet
if ($answerType == HOT_SPOT || $answerType == HOT_SPOT_ORDER || $answerType == HOT_SPOT_DELINEATION) {
if ($debug) {
error_log('$from AND this is a hotspot kind of question ');
}
$my_exe_id = 0;
$from_database = 0;
if ($answerType == HOT_SPOT_DELINEATION) {
if (0) {
if ($overlap_color) {
$overlap_color = 'green';
} else {
$overlap_color = 'red';
}
if ($missing_color) {
$missing_color = 'green';
} else {
$missing_color = 'red';
}
if ($excess_color) {
$excess_color = 'green';
} else {
$excess_color = 'red';
}
if (!is_numeric($final_overlap)) {
$final_overlap = 0;
}
if (!is_numeric($final_missing)) {
$final_missing = 0;
}
if (!is_numeric($final_excess)) {
$final_excess = 0;
}
if ($final_overlap > 100) {
$final_overlap = 100;
}
$table_resume = '<table class="data_table">
<tr class="row_odd" >
<td></td>
<td ><b>' . get_lang('Requirements') . '</b></td>
<td><b>' . get_lang('YourAnswer') . '</b></td>
</tr>
<tr class="row_even">
<td><b>' . get_lang('Overlap') . '</b></td>
<td>' . get_lang('Min') . ' ' . $threadhold1 . '</td>
<td><div style="color:' . $overlap_color . '">' . ($final_overlap < 0 ? 0 : intval($final_overlap)) . '</div></td>
</tr>
<tr>
<td><b>' . get_lang('Excess') . '</b></td>
<td>' . get_lang('Max') . ' ' . $threadhold2 . '</td>
<td><div style="color:' . $excess_color . '">' . ($final_excess < 0 ? 0 : intval($final_excess)) . '</div></td>
</tr>
<tr class="row_even">
<td><b>' . get_lang('Missing') . '</b></td>
<td>' . get_lang('Max') . ' ' . $threadhold3 . '</td>
<td><div style="color:' . $missing_color . '">' . ($final_missing < 0 ? 0 : intval($final_missing)) . '</div></td>
</tr>
</table>';
if ($next == 0) {
$try = $try_hotspot;
$lp = $lp_hotspot;
$destinationid = $select_question_hotspot;
$url = $url_hotspot;
} else {
//show if no error
//echo 'no error';
$comment = $answerComment = $objAnswerTmp->selectComment($nbrAnswers);
$answerDestination = $objAnswerTmp->selectDestination($nbrAnswers);
}
echo '<h1><div style="color:#333;">' . get_lang('Feedback') . '</div></h1>
<p style="text-align:center">';
$message = '<p>' . get_lang('YourDelineation') . '</p>';
$message .= $table_resume;
$message .= '<br />' . get_lang('ResultIs') . ' ' . $result_comment . '<br />';
if ($organs_at_risk_hit > 0) {
$message .= '<p><b>' . get_lang('OARHit') . '</b></p>';
}
$message .= '<p>' . $comment . '</p>';
echo $message;
} else {
echo $hotspot_delineation_result[0];
//prints message
$from_database = 1;
// the hotspot_solution.swf needs this variable
}
//save the score attempts
if (1) {
$final_answer = $hotspot_delineation_result[1];
//getting the answer 1 or 0 comes from exercise_submit_modal.php
if ($final_answer == 0) {
$questionScore = 0;
}
saveQuestionAttempt($questionScore, 1, $quesId, $exeId, 0, null, $updateResults);
// we always insert the answer_id 1 = delineation
//in delineation mode, get the answer from $hotspot_delineation_result[1]
saveExerciseAttemptHotspot($exeId, $quesId, $objAnswerTmp->getRealAnswerIdFromList(1), $hotspot_delineation_result[1], $exerciseResultCoordinates[$quesId], $updateResults);
} else {
if ($final_answer == 0) {
$questionScore = 0;
$answer = 0;
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, null, $updateResults);
if (is_array($exerciseResultCoordinates[$quesId])) {
foreach ($exerciseResultCoordinates[$quesId] as $idx => $val) {
saveExerciseAttemptHotspot($exeId, $quesId, $objAnswerTmp->getRealAnswerIdFromList($idx), 0, $val, $updateResults);
}
}
} else {
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, null, $updateResults);
if (is_array($exerciseResultCoordinates[$quesId])) {
foreach ($exerciseResultCoordinates[$quesId] as $idx => $val) {
saveExerciseAttemptHotspot($exeId, $quesId, $objAnswerTmp->getRealAnswerIdFromList($idx), $choice[$idx], $val, $updateResults);
}
}
}
}
$my_exe_id = $exeId;
}
}
if ($answerType == HOT_SPOT || $answerType == HOT_SPOT_ORDER) {
// We made an extra table for the answers
if ($show_result) {
//if ($origin != 'learnpath') {
echo '</table></td></tr>';
echo '<tr>
<td colspan="2">';
echo '<i>' . get_lang('HotSpot') . '</i><br /><br />';
echo '<object type="application/x-shockwave-flash" data="' . api_get_path(WEB_CODE_PATH) . 'plugin/hotspot/hotspot_solution.swf?modifyAnswers=' . Security::remove_XSS($questionId) . '&exe_id=' . $exeId . '&from_db=1" width="552" height="352">
<param name="movie" value="../plugin/hotspot/hotspot_solution.swf?modifyAnswers=' . Security::remove_XSS($questionId) . '&exe_id=' . $exeId . '&from_db=1" />
</object>';
echo '</td>
</tr>';
//}
}
}
if ($origin != 'learnpath') {
if ($show_result) {
echo '</table>';
}
}
}
$totalWeighting += $questionWeighting;
// Store results directly in the database
// For all in one page exercises, the results will be
// stored by exercise_results.php (using the session)
if ($saved_results) {
if ($debug) {
error_log("Save question results: {$saved_results}");
error_log(print_r($choice, 1));
}
if (empty($choice)) {
$choice = 0;
}
if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE || $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE) {
if ($choice != 0) {
$reply = array_keys($choice);
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
saveQuestionAttempt($questionScore, $ans . ':' . $choice[$ans], $quesId, $exeId, $i, $this->id, $updateResults);
if ($debug) {
error_log('result =>' . $questionScore . ' ' . $ans . ':' . $choice[$ans]);
}
}
} else {
saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id, $updateResults);
}
} elseif ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
if ($choice != 0) {
$reply = array_keys($choice);
if ($debug) {
error_log("reply " . print_r($reply, 1) . "");
}
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
saveQuestionAttempt($questionScore, $ans, $quesId, $exeId, $i, $this->id, $updateResults);
}
} else {
saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id, $updateResults);
}
} elseif ($answerType == MULTIPLE_ANSWER_COMBINATION) {
if ($choice != 0) {
$reply = array_keys($choice);
for ($i = 0; $i < sizeof($reply); $i++) {
$ans = $reply[$i];
saveQuestionAttempt($questionScore, $ans, $quesId, $exeId, $i, $this->id, $updateResults);
}
} else {
saveQuestionAttempt($questionScore, 0, $quesId, $exeId, 0, $this->id, $updateResults);
}
} elseif ($answerType == MATCHING || $answerType == DRAGGABLE) {
if (isset($matching)) {
foreach ($matching as $j => $val) {
saveQuestionAttempt($questionScore, $val, $quesId, $exeId, $j, $this->id, $updateResults);
}
}
} elseif ($answerType == FREE_ANSWER) {
$answer = $choice;
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $updateResults);
} elseif ($answerType == ORAL_EXPRESSION) {
$answer = $choice;
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $updateResults, $nano);
} elseif ($answerType == UNIQUE_ANSWER || $answerType == UNIQUE_ANSWER_IMAGE || $answerType == UNIQUE_ANSWER_NO_OPTION) {
$answer = $choice;
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $updateResults);
// } elseif ($answerType == HOT_SPOT || $answerType == HOT_SPOT_DELINEATION) {
} elseif ($answerType == HOT_SPOT) {
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $updateResults);
if (isset($exerciseResultCoordinates[$questionId]) && !empty($exerciseResultCoordinates[$questionId])) {
foreach ($exerciseResultCoordinates[$questionId] as $idx => $val) {
saveExerciseAttemptHotspot($exeId, $quesId, $objAnswerTmp->getRealAnswerIdFromList($idx), $choice[$idx], $val, $updateResults, $this->id);
}
}
} else {
saveQuestionAttempt($questionScore, $answer, $quesId, $exeId, 0, $this->id, $updateResults);
}
}
if ($propagate_neg == 0 && $questionScore < 0) {
$questionScore = 0;
}
if ($saved_results) {
$stat_table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
$sql_update = 'UPDATE ' . $stat_table . ' SET exe_result = exe_result + ' . floatval($questionScore) . ' WHERE exe_id = ' . $exeId;
if ($debug) {
error_log($sql_update);
}
Database::query($sql_update);
}
$return_array = array('score' => $questionScore, 'weight' => $questionWeighting, 'extra' => $extra_data, 'open_question' => $arrques, 'open_answer' => $arrans, 'answer_type' => $answerType, 'user_choices' => $choice);
return $return_array;
}