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exercise.lib.php
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<?php
/* For licensing terms, see /license.txt */
use Chamilo\CoreBundle\Component\Utils\ChamiloApi;
use Chamilo\CoreBundle\Entity\Session as SessionEntity;
use Chamilo\CoreBundle\Entity\TrackEExercises;
use Chamilo\CourseBundle\Entity\CQuizQuestion;
use ChamiloSession as Session;
/**
* Class ExerciseLib
* shows a question and its answers.
*
* @author Olivier Brouckaert <[email protected]> 2003-2004
* @author Hubert Borderiou 2011-10-21
* @author ivantcholakov2009-07-20
* @author Julio Montoya
*/
class ExerciseLib
{
/**
* Shows a question.
*
* @param Exercise $exercise
* @param int $questionId $questionId question id
* @param bool $only_questions if true only show the questions, no exercise title
* @param bool $origin i.e = learnpath
* @param string $current_item current item from the list of questions
* @param bool $show_title
* @param bool $freeze
* @param array $user_choice
* @param bool $show_comment
* @param bool $show_answers
*
* @throws \Exception
*
* @return bool|int
*/
public static function showQuestion(
$exercise,
$questionId,
$only_questions = false,
$origin = false,
$current_item = '',
$show_title = true,
$freeze = false,
$user_choice = [],
$show_comment = false,
$show_answers = false,
$show_icon = false
) {
$course_id = $exercise->course_id;
$exerciseId = $exercise->iid;
if (empty($course_id)) {
return '';
}
$course = $exercise->course;
// Change false to true in the following line to enable answer hinting
$debug_mark_answer = $show_answers;
// Reads question information
if (!$objQuestionTmp = Question::read($questionId, $course)) {
// Question not found
return false;
}
$questionRequireAuth = WhispeakAuthPlugin::questionRequireAuthentify($questionId);
if ($exercise->getFeedbackType() != EXERCISE_FEEDBACK_TYPE_END) {
$show_comment = false;
}
$answerType = $objQuestionTmp->selectType();
$pictureName = $objQuestionTmp->getPictureFilename();
$s = '';
if ($answerType != HOT_SPOT &&
$answerType != HOT_SPOT_COMBINATION &&
$answerType != HOT_SPOT_DELINEATION &&
$answerType != ANNOTATION
) {
// Question is not a hotspot
if (!$only_questions) {
$questionDescription = $objQuestionTmp->selectDescription();
if ($show_title) {
if ($exercise->display_category_name) {
TestCategory::displayCategoryAndTitle($objQuestionTmp->iid);
}
$titleToDisplay = Security::remove_XSS($objQuestionTmp->getTitleToDisplay($current_item, $exerciseId));
if ($answerType == READING_COMPREHENSION) {
// In READING_COMPREHENSION, the title of the question
// contains the question itself, which can only be
// shown at the end of the given time, so hide for now
$titleToDisplay = Display::div(
$current_item.'. '.get_lang('ReadingComprehension'),
['class' => 'question_title']
);
}
echo $titleToDisplay;
}
if ($questionRequireAuth) {
WhispeakAuthPlugin::quizQuestionAuthentify($questionId, $exercise);
return false;
}
if (!empty($questionDescription) && $answerType != READING_COMPREHENSION) {
echo Display::div(
$questionDescription,
['class' => 'question_description']
);
}
}
if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, UPLOAD_ANSWER]) && $freeze) {
return '';
}
echo '<div class="question_options">';
// construction of the Answer object (also gets all answers details)
$objAnswerTmp = new Answer($questionId, $course_id, $exercise);
$nbrAnswers = $objAnswerTmp->selectNbrAnswers();
$quizQuestionOptions = Question::readQuestionOption($questionId, $course_id);
$selectableOptions = [];
for ($i = 1; $i <= $objAnswerTmp->nbrAnswers; $i++) {
$selectableOptions[$objAnswerTmp->iid[$i]] = $objAnswerTmp->answer[$i];
}
// For "matching" type here, we need something a little bit special
// because the match between the suggestions and the answers cannot be
// done easily (suggestions and answers are in the same table), so we
// have to go through answers first (elems with "correct" value to 0).
$select_items = [];
//This will contain the number of answers on the left side. We call them
// suggestions here, for the sake of comprehensions, while the ones
// on the right side are called answers
$num_suggestions = 0;
switch ($answerType) {
case MATCHING:
case MATCHING_COMBINATION:
case DRAGGABLE:
case MATCHING_DRAGGABLE_COMBINATION:
case MATCHING_DRAGGABLE:
if ($answerType == DRAGGABLE) {
$isVertical = $objQuestionTmp->extra == 'v';
$s .= '
<div class="row">
<div class="col-md-12">
<p class="small">'.get_lang('DraggableQuestionIntro').'</p>
<ul class="exercise-draggable-answer list-unstyled '
.($isVertical ? '' : 'list-inline').'" id="question-'.$questionId.'" data-question="'
.$questionId.'">
';
} else {
$s .= '<div id="drag'.$questionId.'_question" class="drag_question">
<table class="table table-hover table-striped data_table">';
}
// Iterate through answers.
$x = 1;
// Mark letters for each answer.
$letter = 'A';
$answer_matching = [];
$cpt1 = [];
for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
$answerCorrect = $objAnswerTmp->isCorrect($answerId);
$numAnswer = $objAnswerTmp->selectId($answerId);
if ($answerCorrect == 0) {
// options (A, B, C, ...) that will be put into the list-box
// have the "correct" field set to 0 because they are answer
$cpt1[$x] = $letter;
$answer_matching[$x] = $objAnswerTmp->selectAnswerById($numAnswer);
$x++;
$letter++;
}
}
$i = 1;
$select_items[0]['id'] = 0;
$select_items[0]['letter'] = '--';
$select_items[0]['answer'] = '';
foreach ($answer_matching as $id => $value) {
$select_items[$i]['id'] = $value['iid'];
$select_items[$i]['letter'] = $cpt1[$id];
$select_items[$i]['answer'] = $value['answer'];
$i++;
}
$user_choice_array_position = [];
if (!empty($user_choice)) {
foreach ($user_choice as $item) {
$user_choice_array_position[$item['position']] = $item['answer'];
}
}
$num_suggestions = ($nbrAnswers - $x) + 1;
break;
case FREE_ANSWER:
$fck_content = isset($user_choice[0]) && !empty($user_choice[0]['answer']) ? $user_choice[0]['answer'] : null;
$form = new FormValidator('free_choice_'.$questionId);
$config = [
'ToolbarSet' => 'TestFreeAnswer',
'id' => 'choice['.$questionId.']',
];
$form->addHtmlEditor(
'choice['.$questionId.']',
null,
false,
false,
$config
);
$form->setDefaults(["choice[".$questionId."]" => $fck_content]);
$s .= $form->returnForm();
break;
case UPLOAD_ANSWER:
global $exe_id;
$answer = isset($user_choice[0]) && !empty($user_choice[0]['answer']) ? $user_choice[0]['answer'] : null;
$path = '/upload_answer/'.$exe_id.'/'.$questionId.'/';
$url = api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?'.api_get_cidreq().'&a=upload_answer&curdirpath='.$path;
$multipleForm = new FormValidator(
'drag_drop',
'post',
'#',
['enctype' => 'multipart/form-data']
);
$iconDelete = Display::return_icon('delete.png', get_lang('Delete'), [], ICON_SIZE_SMALL);
$multipleForm->addMultipleUpload($url);
$s .= '<script>
function setRemoveLink(dataContext) {
var removeLink = $("<a>", {
html: " '.addslashes($iconDelete).'",
href: "#",
click: function(e) {
e.preventDefault();
dataContext.parent().remove();
}
});
dataContext.append(removeLink);
}
$(function() {
$("#input_file_upload").bind("fileuploaddone", function (e, data) {
$.each(data.result.files, function (index, file) {
if (file.name) {
var input = $("<input>", {
type: "hidden",
name: "uploadChoice['.$questionId.'][]",
value: file.name
});
$(data.context.children()[index]).parent().append(input);
// set the remove link
setRemoveLink($(data.context.children()[index]).parent());
}
});
});
});
</script>';
// Set default values
if (!empty($answer)) {
$userWebpath = UserManager::getUserPathById(api_get_user_id(), 'web').'my_files'.'/upload_answer/'.$exe_id.'/'.$questionId.'/';
$userSyspath = UserManager::getUserPathById(api_get_user_id(), 'system').'my_files'.'/upload_answer/'.$exe_id.'/'.$questionId.'/';
$filesNames = explode('|', $answer);
$icon = Display::return_icon('file_txt.gif');
$default = '';
foreach ($filesNames as $fileName) {
$fileName = Security::remove_XSS($fileName);
if (file_exists($userSyspath.$fileName)) {
$default .= '<a target="_blank" class="panel-image" href="'.$userWebpath.$fileName.'"><div class="row"><div class="col-sm-4">'.$icon.'</div><div class="col-sm-5 file_name">'.$fileName.'</div><input type="hidden" name="uploadChoice['.$questionId.'][]" value="'.$fileName.'"><div class="col-sm-3"></div></div></a>';
}
}
$s .= '<script>
$(function() {
if ($("#files").length > 0) {
$("#files").html("'.addslashes($default).'");
var links = $("#files").children();
links.each(function(index) {
var dataContext = $(links[index]).find(".row");
setRemoveLink(dataContext);
});
}
});
</script>';
}
$s .= $multipleForm->returnForm();
break;
case ORAL_EXPRESSION:
// Add nanog
if (api_get_setting('enable_record_audio') === 'true') {
//@todo pass this as a parameter
global $exercise_stat_info;
if (!empty($exercise_stat_info)) {
$objQuestionTmp->initFile(
api_get_session_id(),
api_get_user_id(),
$exercise_stat_info['exe_exo_id'],
$exercise_stat_info['exe_id']
);
} else {
$objQuestionTmp->initFile(
api_get_session_id(),
api_get_user_id(),
$exerciseId,
'temp_exe'
);
}
echo $objQuestionTmp->returnRecorder();
}
$fileUrl = $objQuestionTmp->getFileUrl();
if (isset($fileUrl)) {
$s .= '
<div class="col-sm-4 col-sm-offset-4">
<div class="form-group text-center">
<audio src="'.$fileUrl.'" controls id="record-preview-'.$questionId.'-previous"></audio>
</div>
</div>
';
}
$s .= '<script>
// The buttons are blocked waiting for the audio file to be uploaded
$(document).ajaxStart(function() {
$("button").attr("disabled", true);
$("button").attr("title", "'.get_lang('WaitingForTheAudioFileToBeUploaded').'");
});
$(document).ajaxComplete(function() {
$("button").attr("disabled", false);
$("button").removeAttr("title");
});
</script>';
$form = new FormValidator('free_choice_'.$questionId);
$config = ['ToolbarSet' => 'TestFreeAnswer'];
$form->addHtml('<div id="'.'hide_description_'.$questionId.'_options" style="display: none;">');
$form->addHtmlEditor(
"choice[$questionId]",
null,
false,
false,
$config
);
$form->addHtml('</div>');
$s .= $form->returnForm();
break;
case MULTIPLE_ANSWER_DROPDOWN:
case MULTIPLE_ANSWER_DROPDOWN_COMBINATION:
if ($debug_mark_answer) {
$s .= '<p><strong>'
.(
MULTIPLE_ANSWER_DROPDOWN == $answerType
? '<span class="pull-right">'.get_lang('Weighting').'</span>'
: ''
)
.get_lang('CorrectAnswer').'</strong></p>';
}
break;
}
// Now navigate through the possible answers, using the max number of
// answers for the question as a limiter
$lines_count = 1; // a counter for matching-type answers
if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE ||
$answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE
) {
$header = Display::tag('th', get_lang('Options'));
foreach ($objQuestionTmp->options as $item) {
if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
if (in_array($item, $objQuestionTmp->options)) {
$header .= Display::tag('th', get_lang($item));
} else {
$header .= Display::tag('th', $item);
}
} else {
$header .= Display::tag('th', $item);
}
}
if ($show_comment) {
$header .= Display::tag('th', get_lang('Feedback'));
}
$s .= '<table class="table table-hover table-striped">';
$s .= Display::tag(
'tr',
$header,
['style' => 'text-align:left;']
);
} elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY) {
$header = Display::tag('th', get_lang('Options'), ['width' => '50%']);
echo "
<script>
function RadioValidator(question_id, answer_id)
{
var ShowAlert = '';
var typeRadioB = '';
var AllFormElements = window.document.getElementById('exercise_form').elements;
for (i = 0; i < AllFormElements.length; i++) {
if (AllFormElements[i].type == 'radio') {
var ThisRadio = AllFormElements[i].name;
var ThisChecked = 'No';
var AllRadioOptions = document.getElementsByName(ThisRadio);
for (x = 0; x < AllRadioOptions.length; x++) {
if (AllRadioOptions[x].checked && ThisChecked == 'No') {
ThisChecked = 'Yes';
break;
}
}
var AlreadySearched = ShowAlert.indexOf(ThisRadio);
if (ThisChecked == 'No' && AlreadySearched == -1) {
ShowAlert = ShowAlert + ThisRadio;
}
}
}
if (ShowAlert != '') {
} else {
$('.question-validate-btn').removeAttr('disabled');
}
}
function handleRadioRow(event, question_id, answer_id) {
var t = event.target;
if (t && t.tagName == 'INPUT')
return;
while (t && t.tagName != 'TD') {
t = t.parentElement;
}
var r = t.getElementsByTagName('INPUT')[0];
r.click();
RadioValidator(question_id, answer_id);
}
$(function() {
var ShowAlert = '';
var typeRadioB = '';
var question_id = $('input[name=question_id]').val();
var AllFormElements = window.document.getElementById('exercise_form').elements;
for (i = 0; i < AllFormElements.length; i++) {
if (AllFormElements[i].type == 'radio') {
var ThisRadio = AllFormElements[i].name;
var ThisChecked = 'No';
var AllRadioOptions = document.getElementsByName(ThisRadio);
for (x = 0; x < AllRadioOptions.length; x++) {
if (AllRadioOptions[x].checked && ThisChecked == 'No') {
ThisChecked = \"Yes\";
break;
}
}
var AlreadySearched = ShowAlert.indexOf(ThisRadio);
if (ThisChecked == 'No' && AlreadySearched == -1) {
ShowAlert = ShowAlert + ThisRadio;
}
}
}
if (ShowAlert != '') {
$('.question-validate-btn').attr('disabled', 'disabled');
} else {
$('.question-validate-btn').removeAttr('disabled');
}
});
</script>";
foreach ($objQuestionTmp->optionsTitle as $item) {
if (in_array($item, $objQuestionTmp->optionsTitle)) {
$properties = [];
if ($item === 'Answers') {
$properties['colspan'] = 2;
$properties['style'] = 'background-color: #F56B2A; color: #ffffff;';
} elseif ($item == 'DegreeOfCertaintyThatMyAnswerIsCorrect') {
$properties['colspan'] = 6;
$properties['style'] = 'background-color: #330066; color: #ffffff;';
}
$header .= Display::tag('th', get_lang($item), $properties);
} else {
$header .= Display::tag('th', $item);
}
}
if ($show_comment) {
$header .= Display::tag('th', get_lang('Feedback'));
}
$s .= '<table class="table table-hover table-striped data_table">';
$s .= Display::tag('tr', $header, ['style' => 'text-align:left;']);
// ajout de la 2eme ligne d'entête pour true/falss et les pourcentages de certitude
$header1 = Display::tag('th', ' ');
$cpt1 = 0;
foreach ($objQuestionTmp->options as $item) {
$colorBorder1 = $cpt1 == (count($objQuestionTmp->options) - 1)
? '' : 'border-right: solid #FFFFFF 1px;';
if ($item === 'True' || $item === 'False') {
$header1 .= Display::tag(
'th',
get_lang($item),
['style' => 'background-color: #F7C9B4; color: black;'.$colorBorder1]
);
} else {
$header1 .= Display::tag(
'th',
$item,
['style' => 'background-color: #e6e6ff; color: black;padding:5px; '.$colorBorder1]
);
}
$cpt1++;
}
if ($show_comment) {
$header1 .= Display::tag('th', ' ');
}
$s .= Display::tag('tr', $header1);
// add explanation
$header2 = Display::tag('th', ' ');
$descriptionList = [
get_lang('DegreeOfCertaintyIDeclareMyIgnorance'),
get_lang('DegreeOfCertaintyIAmVeryUnsure'),
get_lang('DegreeOfCertaintyIAmUnsure'),
get_lang('DegreeOfCertaintyIAmPrettySure'),
get_lang('DegreeOfCertaintyIAmSure'),
get_lang('DegreeOfCertaintyIAmVerySure'),
];
$counter2 = 0;
foreach ($objQuestionTmp->options as $item) {
if ($item === 'True' || $item === 'False') {
$header2 .= Display::tag('td',
' ',
['style' => 'background-color: #F7E1D7; color: black;border-right: solid #FFFFFF 1px;']);
} else {
$color_border2 = ($counter2 == (count($objQuestionTmp->options) - 1)) ?
'' : 'border-right: solid #FFFFFF 1px;font-size:11px;';
$header2 .= Display::tag(
'td',
nl2br($descriptionList[$counter2]),
['style' => 'background-color: #EFEFFC; color: black; width: 110px; text-align:center;
vertical-align: top; padding:5px; '.$color_border2]);
$counter2++;
}
}
if ($show_comment) {
$header2 .= Display::tag('th', ' ');
}
$s .= Display::tag('tr', $header2);
}
if ($show_comment) {
if (in_array(
$answerType,
[
MULTIPLE_ANSWER,
MULTIPLE_ANSWER_COMBINATION,
UNIQUE_ANSWER,
UNIQUE_ANSWER_IMAGE,
UNIQUE_ANSWER_NO_OPTION,
GLOBAL_MULTIPLE_ANSWER,
]
)) {
$header = Display::tag('th', get_lang('Options'));
if ($exercise->getFeedbackType() == EXERCISE_FEEDBACK_TYPE_END) {
$header .= Display::tag('th', get_lang('Feedback'));
}
$s .= '<table class="table table-hover table-striped">';
$s .= Display::tag(
'tr',
$header,
['style' => 'text-align:left;']
);
}
}
$matching_correct_answer = 0;
$userChoiceList = [];
if (!empty($user_choice)) {
foreach ($user_choice as $item) {
$userChoiceList[] = $item['answer'];
}
}
$hidingClass = '';
if ($answerType == READING_COMPREHENSION) {
$objQuestionTmp->setExerciseType($exercise->selectType());
$objQuestionTmp->processText($objQuestionTmp->selectDescription());
$hidingClass = 'hide-reading-answers';
$s .= Display::div(
$objQuestionTmp->selectTitle(),
['class' => 'question_title '.$hidingClass]
);
}
$userStatus = STUDENT;
// Allows to do a remove_XSS in question of exercise with user status COURSEMANAGER
// see BT#18242
if (api_get_configuration_value('question_exercise_html_strict_filtering')) {
$userStatus = COURSEMANAGERLOWSECURITY;
}
for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
$answer = $objAnswerTmp->selectAnswer($answerId);
$answerCorrect = $objAnswerTmp->isCorrect($answerId);
$numAnswer = $objAnswerTmp->selectId($answerId);
$comment = Security::remove_XSS($objAnswerTmp->selectComment($answerId));
$attributes = [];
switch ($answerType) {
case UNIQUE_ANSWER:
case UNIQUE_ANSWER_NO_OPTION:
case UNIQUE_ANSWER_IMAGE:
case READING_COMPREHENSION:
$input_id = 'choice-'.$questionId.'-'.$answerId;
if (isset($user_choice[0]['answer']) && $user_choice[0]['answer'] == $numAnswer) {
$attributes = [
'id' => $input_id,
'checked' => 1,
'selected' => 1,
];
} else {
$attributes = ['id' => $input_id];
}
if ($debug_mark_answer) {
if ($answerCorrect) {
$attributes['checked'] = 1;
$attributes['selected'] = 1;
}
}
if ($show_comment) {
$s .= '<tr><td>';
}
if ($answerType == UNIQUE_ANSWER_IMAGE) {
if ($show_comment) {
if (empty($comment)) {
$s .= '<div id="answer'.$questionId.$numAnswer.'"
class="exercise-unique-answer-image" style="text-align: center">';
} else {
$s .= '<div id="answer'.$questionId.$numAnswer.'"
class="exercise-unique-answer-image col-xs-6 col-sm-12"
style="text-align: center">';
}
} else {
$s .= '<div id="answer'.$questionId.$numAnswer.'"
class="exercise-unique-answer-image col-xs-6 col-md-3"
style="text-align: center">';
}
}
if ($answerType != UNIQUE_ANSWER_IMAGE) {
$answer = Security::remove_XSS($answer, $userStatus);
}
$s .= Display::input(
'hidden',
'choice2['.$questionId.']',
'0'
);
$answer_input = null;
$attributes['class'] = 'checkradios';
if ($answerType == UNIQUE_ANSWER_IMAGE) {
$attributes['class'] = '';
$attributes['style'] = 'display: none;';
$answer = '<div class="thumbnail">'.$answer.'</div>';
}
$answer_input .= '<label class="radio '.$hidingClass.'">';
$answer_input .= Display::input(
'radio',
'choice['.$questionId.']',
$numAnswer,
$attributes
);
$answer_input .= $answer;
$answer_input .= '</label>';
if ($answerType == UNIQUE_ANSWER_IMAGE) {
$answer_input .= "</div>";
}
if ($show_comment) {
$s .= $answer_input;
$s .= '</td>';
$s .= '<td>';
$s .= $comment;
$s .= '</td>';
$s .= '</tr>';
} else {
$s .= $answer_input;
}
break;
case MULTIPLE_ANSWER:
case MULTIPLE_ANSWER_TRUE_FALSE:
case GLOBAL_MULTIPLE_ANSWER:
case MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY:
$input_id = 'choice-'.$questionId.'-'.$answerId;
$answer = Security::remove_XSS($answer, $userStatus);
if (in_array($numAnswer, $userChoiceList)) {
$attributes = [
'id' => $input_id,
'checked' => 1,
'selected' => 1,
];
} else {
$attributes = ['id' => $input_id];
}
if ($debug_mark_answer) {
if ($answerCorrect) {
$attributes['checked'] = 1;
$attributes['selected'] = 1;
}
}
if ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
$s .= '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
$attributes['class'] = 'checkradios';
$answer_input = '<label class="checkbox">';
$answer_input .= Display::input(
'checkbox',
'choice['.$questionId.']['.$numAnswer.']',
$numAnswer,
$attributes
);
$answer_input .= $answer;
$answer_input .= '</label>';
if ($show_comment) {
$s .= '<tr><td>';
$s .= $answer_input;
$s .= '</td>';
$s .= '<td>';
$s .= $comment;
$s .= '</td>';
$s .= '</tr>';
} else {
$s .= $answer_input;
}
} elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
$myChoice = [];
if (!empty($userChoiceList)) {
foreach ($userChoiceList as $item) {
$item = explode(':', $item);
if (!empty($item)) {
$myChoice[$item[0]] = isset($item[1]) ? $item[1] : '';
}
}
}
$s .= '<tr>';
$s .= Display::tag('td', $answer);
if (!empty($quizQuestionOptions)) {
foreach ($quizQuestionOptions as $id => $item) {
if (isset($myChoice[$numAnswer]) && $id == $myChoice[$numAnswer]) {
$attributes = [
'checked' => 1,
'selected' => 1,
];
} else {
$attributes = [];
}
if ($debug_mark_answer) {
if ($id == $answerCorrect) {
$attributes['checked'] = 1;
$attributes['selected'] = 1;
}
}
$s .= Display::tag(
'td',
Display::input(
'radio',
'choice['.$questionId.']['.$numAnswer.']',
$id,
$attributes
),
['style' => '']
);
}
}
if ($show_comment) {
$s .= '<td>';
$s .= $comment;
$s .= '</td>';
}
$s .= '</tr>';
} elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY) {
$myChoice = [];
if (!empty($userChoiceList)) {
foreach ($userChoiceList as $item) {
$item = explode(':', $item);
$myChoice[$item[0]] = $item[1];
}
}
$myChoiceDegreeCertainty = [];
if (!empty($userChoiceList)) {
foreach ($userChoiceList as $item) {
$item = explode(':', $item);
$myChoiceDegreeCertainty[$item[0]] = $item[2];
}
}
$s .= '<tr>';
$s .= Display::tag('td', $answer);
if (!empty($quizQuestionOptions)) {
foreach ($quizQuestionOptions as $id => $item) {
if (isset($myChoice[$numAnswer]) && $id == $myChoice[$numAnswer]) {
$attributes = ['checked' => 1, 'selected' => 1];
} else {
$attributes = [];
}
$attributes['onChange'] = 'RadioValidator('.$questionId.', '.$numAnswer.')';
// radio button selection
if (isset($myChoiceDegreeCertainty[$numAnswer]) &&
$id == $myChoiceDegreeCertainty[$numAnswer]
) {
$attributes1 = ['checked' => 1, 'selected' => 1];
} else {
$attributes1 = [];
}
$attributes1['onChange'] = 'RadioValidator('.$questionId.', '.$numAnswer.')';
if ($debug_mark_answer) {
if ($id == $answerCorrect) {
$attributes['checked'] = 1;
$attributes['selected'] = 1;
}
}
if ($item['name'] == 'True' || $item['name'] == 'False') {
$s .= Display::tag('td',
Display::input('radio',
'choice['.$questionId.']['.$numAnswer.']',
$id,
$attributes
),
['style' => 'text-align:center; background-color:#F7E1D7;',
'onclick' => 'handleRadioRow(event, '.
$questionId.', '.
$numAnswer.')',
]
);
} else {
$s .= Display::tag('td',
Display::input('radio',
'choiceDegreeCertainty['.$questionId.']['.$numAnswer.']',
$id,
$attributes1
),
['style' => 'text-align:center; background-color:#EFEFFC;',
'onclick' => 'handleRadioRow(event, '.
$questionId.', '.
$numAnswer.')',
]
);
}
}
}
if ($show_comment) {
$s .= '<td>';
$s .= $comment;
$s .= '</td>';
}
$s .= '</tr>';
}
break;
case MULTIPLE_ANSWER_COMBINATION:
// multiple answers
$input_id = 'choice-'.$questionId.'-'.$answerId;
if (in_array($numAnswer, $userChoiceList)) {
$attributes = [
'id' => $input_id,
'checked' => 1,
'selected' => 1,
];
} else {
$attributes = ['id' => $input_id];
}
if ($debug_mark_answer) {
if ($answerCorrect) {
$attributes['checked'] = 1;
$attributes['selected'] = 1;
}
}
$answer = Security::remove_XSS($answer, $userStatus);
$answer_input = '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
$answer_input .= '<label class="checkbox">';
$answer_input .= Display::input(
'checkbox',
'choice['.$questionId.']['.$numAnswer.']',
1,
$attributes
);
$answer_input .= $answer;
$answer_input .= '</label>';
if ($show_comment) {
$s .= '<tr>';
$s .= '<td>';
$s .= $answer_input;
$s .= '</td>';
$s .= '<td>';
$s .= $comment;
$s .= '</td>';
$s .= '</tr>';
} else {
$s .= $answer_input;
}
break;
case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
$s .= '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
$myChoice = [];
if (!empty($userChoiceList)) {
foreach ($userChoiceList as $item) {
$item = explode(':', $item);
if (isset($item[1]) && isset($item[0])) {
$myChoice[$item[0]] = $item[1];
}
}
}
$answer = Security::remove_XSS($answer, $userStatus);
$s .= '<tr>';
$s .= Display::tag('td', $answer);
foreach ($objQuestionTmp->options as $key => $item) {
if (isset($myChoice[$numAnswer]) && $key == $myChoice[$numAnswer]) {
$attributes = [
'checked' => 1,
'selected' => 1,
];
} else {
$attributes = [];
}
if ($debug_mark_answer) {
if ($key == $answerCorrect) {
$attributes['checked'] = 1;
$attributes['selected'] = 1;
}
}
$s .= Display::tag(
'td',
Display::input(
'radio',
'choice['.$questionId.']['.$numAnswer.']',
$key,
$attributes
)
);
}
if ($show_comment) {
$s .= '<td>';
$s .= $comment;
$s .= '</td>';
}
$s .= '</tr>';
break;
case FILL_IN_BLANKS:
case FILL_IN_BLANKS_COMBINATION:
// display the question, with field empty, for student to fill it,
// or filled to display the answer in the Question preview of the exercise/admin.php page
$displayForStudent = true;
$listAnswerInfo = FillBlanks::getAnswerInfo($answer);
// Correct answers
$correctAnswerList = $listAnswerInfo['words'];
// Student's answer
$studentAnswerList = [];
if (isset($user_choice[0]['answer'])) {
$arrayStudentAnswer = FillBlanks::getAnswerInfo(
$user_choice[0]['answer'],
true
);
$studentAnswerList = $arrayStudentAnswer['student_answer'];
}
// If the question must be shown with the answer (in page exercise/admin.php)
// for teacher preview set the student-answer to the correct answer
if ($debug_mark_answer) {
$studentAnswerList = $correctAnswerList;
$displayForStudent = false;
}
if (!empty($correctAnswerList) && !empty($studentAnswerList)) {
$answer = '';
for ($i = 0; $i < count($listAnswerInfo['common_words']) - 1; $i++) {
// display the common word
$answer .= $listAnswerInfo['common_words'][$i];
// display the blank word