/**
* Upgrade states for an attempt to Moodle 1.5 model
*
* Any state that does not yet have its timestamp set to nonzero has not yet been
* upgraded from Moodle 1.4. The reason these are still around is that for large
* sites it would have taken too long to upgrade all states at once. This function
* sets the timestamp field and creates an entry in the question_sessions table.
* @param object $attempt The attempt whose states need upgrading
*/
function quiz_upgrade_very_old_question_sessions($attempt)
{
global $DB;
// The old quiz model only allowed a single response per quiz attempt so that there will be
// only one state record per question for this attempt.
// We set the timestamp of all states to the timemodified field of the attempt.
$DB->execute("UPDATE {question_states} SET timestamp = ? WHERE attempt = ?", array($attempt->timemodified, $attempt->uniqueid));
// For each state we create an entry in the question_sessions table, with both newest and
// newgraded pointing to this state.
// Actually we only do this for states whose question is actually listed in $attempt->layout.
// We do not do it for states associated to wrapped questions like for example the questions
// used by a random question
$session = new stdClass();
$session->attemptid = $attempt->uniqueid;
$session->sumpenalty = 0;
$session->manualcomment = '';
$session->manualcommentformat = FORMAT_HTML;
$session->flagged = 0;
$questionlist = str_replace(',0', '', quiz_clean_layout($attempt->layout, true));
if (!$questionlist) {
return;
}
list($usql, $question_params) = $DB->get_in_or_equal(explode(',', $questionlist));
$params = array_merge(array($attempt->uniqueid), $question_params);
if ($states = $DB->get_records_select('question_states', "attempt = ? AND question {$usql}", $params)) {
foreach ($states as $state) {
if ($DB->record_exists('question_sessions', array('attemptid' => $attempt->uniqueid, 'questionid' => $state->question))) {
// It was possible for the code to get here when some of the necessary
// question_sessions were already in the database. That lead to a
// unique key violation, so we manually detect and avoid that.
continue;
}
$session->newgraded = $state->id;
$session->newest = $state->id;
$session->questionid = $state->question;
$DB->insert_record('question_sessions', $session, false);
}
}
// It was possible to have old question_states records for this attempt but
// pointing to questionids that were no longer in quiz_attempt->layout.
// That makes no sense, and will break things later in the upgrade, so delete
// those now.
list($qidsql, $params) = $DB->get_in_or_equal(explode(',', $questionlist), SQL_PARAMS_QM, 'param', false);
$params[] = $attempt->uniqueid;
$DB->delete_records_select('question_states', "question {$usql} AND attempt = ?", $params);
}
function test_quiz_clean_layout()
{
// Without stripping empty pages.
$this->assertEqual(quiz_clean_layout(',,1,,,2,,'), '1,2,0');
$this->assertEqual(quiz_clean_layout(''), '0');
$this->assertEqual(quiz_clean_layout('0'), '0');
$this->assertEqual(quiz_clean_layout('0,0'), '0,0');
$this->assertEqual(quiz_clean_layout('0,0,0'), '0,0,0');
$this->assertEqual(quiz_clean_layout('1'), '1,0');
$this->assertEqual(quiz_clean_layout('1,2'), '1,2,0');
$this->assertEqual(quiz_clean_layout('1,0,2'), '1,0,2,0');
$this->assertEqual(quiz_clean_layout('0,1,0,0,2,0'), '0,1,0,0,2,0');
// With stripping empty pages.
$this->assertEqual(quiz_clean_layout('', true), '0');
$this->assertEqual(quiz_clean_layout('0', true), '0');
$this->assertEqual(quiz_clean_layout('0,0', true), '0');
$this->assertEqual(quiz_clean_layout('0,0,0', true), '0');
$this->assertEqual(quiz_clean_layout('1', true), '1,0');
$this->assertEqual(quiz_clean_layout('1,2', true), '1,2,0');
$this->assertEqual(quiz_clean_layout('1,0,2', true), '1,0,2,0');
$this->assertEqual(quiz_clean_layout('0,1,0,0,2,0', true), '1,0,2,0');
}
/**
* Upgrade states for an attempt to Moodle 1.5 model
*
* Any state that does not yet have its timestamp set to nonzero has not yet been
* upgraded from Moodle 1.4. The reason these are still around is that for large
* sites it would have taken too long to upgrade all states at once. This function
* sets the timestamp field and creates an entry in the question_sessions table.
* @param object $attempt The attempt whose states need upgrading
*/
function quiz_upgrade_very_old_question_sessions($attempt) {
global $DB;
// The old quiz model only allowed a single response per quiz attempt so that there will be
// only one state record per question for this attempt.
// We set the timestamp of all states to the timemodified field of the attempt.
$DB->execute("UPDATE {question_states} SET timestamp = ? WHERE attempt = ?",
array($attempt->timemodified, $attempt->uniqueid));
// For each state we create an entry in the question_sessions table, with both newest and
// newgraded pointing to this state.
// Actually we only do this for states whose question is actually listed in $attempt->layout.
// We do not do it for states associated to wrapped questions like for example the questions
// used by a random question
$session = new stdClass();
$session->attemptid = $attempt->uniqueid;
$session->sumpenalty = 0;
$session->manualcomment = '';
$session->manualcommentformat = FORMAT_HTML;
$session->flagged = 0;
$questionlist = str_replace(',0', '', quiz_clean_layout($layout, true));
if (!$questionlist) {
return;
}
list($usql, $question_params) = $DB->get_in_or_equal(explode(',', $questionlist));
$params = array_merge(array($attempt->uniqueid), $question_params);
if ($states = $DB->get_records_select('question_states',
"attempt = ? AND question $usql", $params)) {
foreach ($states as $state) {
$session->newgraded = $state->id;
$session->newest = $state->id;
$session->questionid = $state->question;
$DB->insert_record('question_sessions', $session, false);
}
}
}
$select = html_writer::select($randomcount, 'randomcount', '1', null, $attributes);
$out .= get_string('addrandom', 'quiz', $select);
$out .= '<input type="hidden" name="recurse" value="' . $recurse . '" />';
$out .= '<input type="hidden" name="categoryid" value="' . $category->id . '" />';
$out .= ' <input type="submit" name="addrandom" value="' . get_string('addtoquiz', 'quiz') . '"' . $disabled . ' />';
$out .= $OUTPUT->help_icon('addarandomquestion', 'quiz');
}
return $out;
}
// These params are only passed from page request to request while we stay on
// this page otherwise they would go in question_edit_setup.
$quiz_reordertool = optional_param('reordertool', -1, PARAM_BOOL);
$quiz_qbanktool = optional_param('qbanktool', -1, PARAM_BOOL);
$scrollpos = optional_param('scrollpos', '', PARAM_INT);
list($thispageurl, $contexts, $cmid, $cm, $quiz, $pagevars) = question_edit_setup('editq', '/mod/quiz/edit.php', true);
$quiz->questions = quiz_clean_layout($quiz->questions);
$defaultcategoryobj = question_make_default_categories($contexts->all());
$defaultcategory = $defaultcategoryobj->id . ',' . $defaultcategoryobj->contextid;
if ($quiz_qbanktool > -1) {
$thispageurl->param('qbanktool', $quiz_qbanktool);
set_user_preference('quiz_qbanktool_open', $quiz_qbanktool);
} else {
$quiz_qbanktool = get_user_preferences('quiz_qbanktool_open', 0);
}
if ($quiz_reordertool > -1) {
$thispageurl->param('reordertool', $quiz_reordertool);
set_user_preference('quiz_reordertab', $quiz_reordertool);
} else {
$quiz_reordertool = get_user_preferences('quiz_reordertab', 0);
}
$canaddrandom = $contexts->have_cap('moodle/question:useall');
/**
* Prints a list of quiz questions for the edit.php main view for edit
* ($reordertool = false) and order and paging ($reordertool = true) tabs
*
* @param object $quiz This is not the standard quiz object used elsewhere but
* it contains the quiz layout in $quiz->questions and the grades in
* $quiz->grades
* @param moodle_url $pageurl The url of the current page with the parameters required
* for links returning to the current page, as a moodle_url object
* @param bool $allowdelete Indicates whether the delete icons should be displayed
* @param bool $reordertool Indicates whether the reorder tool should be displayed
* @param bool $quiz_qbanktool Indicates whether the question bank should be displayed
* @param bool $hasattempts Indicates whether the quiz has attempts
* @param object $defaultcategoryobj
* @param bool $canaddquestion is the user able to add and use questions anywere?
* @param bool $canaddrandom is the user able to add random questions anywere?
*/
function quiz_print_question_list($quiz, $pageurl, $allowdelete, $reordertool,
$quiz_qbanktool, $hasattempts, $defaultcategoryobj, $canaddquestion, $canaddrandom) {
global $CFG, $DB, $OUTPUT;
$strorder = get_string('order');
$strquestionname = get_string('questionname', 'quiz');
$strmaxmark = get_string('markedoutof', 'question');
$strremove = get_string('remove', 'quiz');
$stredit = get_string('edit');
$strview = get_string('view');
$straction = get_string('action');
$strmove = get_string('move');
$strmoveup = get_string('moveup');
$strmovedown = get_string('movedown');
$strsave = get_string('save', 'quiz');
$strreorderquestions = get_string('reorderquestions', 'quiz');
$strselectall = get_string('selectall', 'quiz');
$strselectnone = get_string('selectnone', 'quiz');
$strtype = get_string('type', 'quiz');
$strpreview = get_string('preview', 'quiz');
if ($quiz->questions) {
list($usql, $params) = $DB->get_in_or_equal(explode(',', $quiz->questions));
$params[] = $quiz->id;
$questions = $DB->get_records_sql("SELECT q.*, qc.contextid, qqi.grade as maxmark
FROM {question} q
JOIN {question_categories} qc ON qc.id = q.category
JOIN {quiz_question_instances} qqi ON qqi.question = q.id
WHERE q.id $usql AND qqi.quiz = ?", $params);
} else {
$questions = array();
}
$layout = quiz_clean_layout($quiz->questions);
$order = explode(',', $layout);
$lastindex = count($order) - 1;
$disabled = '';
$pagingdisabled = '';
if ($hasattempts) {
$disabled = 'disabled="disabled"';
}
if ($hasattempts || $quiz->shufflequestions) {
$pagingdisabled = 'disabled="disabled"';
}
$reordercontrolssetdefaultsubmit = '<div style="display:none;">' .
'<input type="submit" name="savechanges" value="' .
$strreorderquestions . '" ' . $pagingdisabled . ' /></div>';
$reordercontrols1 = '<div class="addnewpagesafterselected">' .
'<input type="submit" name="addnewpagesafterselected" value="' .
get_string('addnewpagesafterselected', 'quiz') . '" ' .
$pagingdisabled . ' /></div>';
$reordercontrols1 .= '<div class="quizdeleteselected">' .
'<input type="submit" name="quizdeleteselected" ' .
'onclick="return confirm(\'' .
get_string('areyousureremoveselected', 'quiz') . '\');" value="' .
get_string('removeselected', 'quiz') . '" ' . $disabled . ' /></div>';
$a = '<input name="moveselectedonpagetop" type="text" size="2" ' .
$pagingdisabled . ' />';
$b = '<input name="moveselectedonpagebottom" type="text" size="2" ' .
$pagingdisabled . ' />';
$reordercontrols2top = '<div class="moveselectedonpage">' .
get_string('moveselectedonpage', 'quiz', $a) .
'<input type="submit" name="savechanges" value="' .
$strmove . '" ' . $pagingdisabled . ' />' . '
<br /><input type="submit" name="savechanges" value="' .
$strreorderquestions . '" /></div>';
$reordercontrols2bottom = '<div class="moveselectedonpage">' .
'<input type="submit" name="savechanges" value="' .
$strreorderquestions . '" /><br />' .
get_string('moveselectedonpage', 'quiz', $b) .
'<input type="submit" name="savechanges" value="' .
$strmove . '" ' . $pagingdisabled . ' /> ' . '</div>';
$reordercontrols3 = '<a href="javascript:select_all_in(\'FORM\', null, ' .
'\'quizquestions\');">' .
$strselectall . '</a> /';
$reordercontrols3.= ' <a href="javascript:deselect_all_in(\'FORM\', ' .
'null, \'quizquestions\');">' .
$strselectnone . '</a>';
$reordercontrolstop = '<div class="reordercontrols">' .
$reordercontrolssetdefaultsubmit .
$reordercontrols1 . $reordercontrols2top . $reordercontrols3 . "</div>";
$reordercontrolsbottom = '<div class="reordercontrols">' .
$reordercontrolssetdefaultsubmit .
$reordercontrols2bottom . $reordercontrols1 . $reordercontrols3 . "</div>";
if ($reordertool) {
echo '<form method="post" action="edit.php" id="quizquestions"><div>';
echo html_writer::input_hidden_params($pageurl);
echo '<input type="hidden" name="sesskey" value="' . sesskey() . '" />';
echo $reordercontrolstop;
}
// The current question ordinal (no descriptions).
$qno = 1;
// The current question (includes questions and descriptions).
$questioncount = 0;
// The current page number in iteration.
$pagecount = 0;
$pageopen = false;
$returnurl = $pageurl->out_as_local_url(false);
$questiontotalcount = count($order);
foreach ($order as $count => $qnum) {
$reordercheckbox = '';
$reordercheckboxlabel = '';
$reordercheckboxlabelclose = '';
// If the questiontype is missing change the question type.
if ($qnum && !array_key_exists($qnum, $questions)) {
$fakequestion = new stdClass();
$fakequestion->id = $qnum;
$fakequestion->category = 0;
$fakequestion->qtype = 'missingtype';
$fakequestion->name = get_string('missingquestion', 'quiz');
$fakequestion->questiontext = ' ';
$fakequestion->questiontextformat = FORMAT_HTML;
$fakequestion->length = 1;
$questions[$qnum] = $fakequestion;
$quiz->grades[$qnum] = 0;
} else if ($qnum && !question_bank::qtype_exists($questions[$qnum]->qtype)) {
$questions[$qnum]->qtype = 'missingtype';
}
if ($qnum != 0 || ($qnum == 0 && !$pageopen)) {
// This is either a question or a page break after another (no page is currently open).
if (!$pageopen) {
// If no page is open, start display of a page.
$pagecount++;
echo '<div class="quizpage"><span class="pagetitle">' .
get_string('page') . ' ' . $pagecount .
'</span><div class="pagecontent">';
$pageopen = true;
}
if ($qnum == 0 && $count < $questiontotalcount) {
// This is the second successive page break. Tell the user the page is empty.
echo '<div class="pagestatus">';
print_string('noquestionsonpage', 'quiz');
echo '</div>';
if ($allowdelete) {
echo '<div class="quizpagedelete">';
echo $OUTPUT->action_icon($pageurl->out(true,
array('deleteemptypage' => $count - 1, 'sesskey'=>sesskey())),
new pix_icon('t/delete', $strremove),
new component_action('click',
'M.core_scroll_manager.save_scroll_action'),
array('title' => $strremove));
echo '</div>';
}
}
if ($qnum != 0) {
$question = $questions[$qnum];
$questionparams = array(
'returnurl' => $returnurl,
'cmid' => $quiz->cmid,
'id' => $question->id);
$questionurl = new moodle_url('/question/question.php',
$questionparams);
$questioncount++;
// This is an actual question.
?>
<div class="question">
<div class="questioncontainer <?php echo $question->qtype; ?>">
<div class="qnum">
<?php
$reordercheckbox = '';
$reordercheckboxlabel = '';
$reordercheckboxlabelclose = '';
if ($reordertool) {
$reordercheckbox = '<input type="checkbox" name="s' . $question->id .
'" id="s' . $question->id . '" />';
$reordercheckboxlabel = '<label for="s' . $question->id . '">';
$reordercheckboxlabelclose = '</label>';
}
if ($question->length == 0) {
$qnodisplay = get_string('infoshort', 'quiz');
} else if ($quiz->shufflequestions) {
$qnodisplay = '?';
} else {
if ($qno > 999 || ($reordertool && $qno > 99)) {
$qnodisplay = html_writer::tag('small', $qno);
} else {
$qnodisplay = $qno;
}
$qno += $question->length;
}
echo $reordercheckboxlabel . $qnodisplay . $reordercheckboxlabelclose .
$reordercheckbox;
?>
</div>
<div class="content">
<div class="questioncontrols">
<?php
if ($count != 0) {
if (!$hasattempts) {
$upbuttonclass = '';
if ($count >= $lastindex - 1) {
$upbuttonclass = 'upwithoutdown';
}
echo $OUTPUT->action_icon($pageurl->out(true,
array('up' => $question->id, 'sesskey'=>sesskey())),
new pix_icon('t/up', $strmoveup),
new component_action('click',
'M.core_scroll_manager.save_scroll_action'),
array('title' => $strmoveup));
}
}
if ($count < $lastindex - 1) {
if (!$hasattempts) {
echo $OUTPUT->action_icon($pageurl->out(true,
array('down' => $question->id, 'sesskey'=>sesskey())),
new pix_icon('t/down', $strmovedown),
new component_action('click',
'M.core_scroll_manager.save_scroll_action'),
array('title' => $strmovedown));
}
}
if ($allowdelete && ($question->qtype == 'missingtype' ||
question_has_capability_on($question, 'use', $question->category))) {
// Remove from quiz, not question delete.
if (!$hasattempts) {
echo $OUTPUT->action_icon($pageurl->out(true,
array('remove' => $question->id, 'sesskey'=>sesskey())),
new pix_icon('t/delete', $strremove),
new component_action('click',
'M.core_scroll_manager.save_scroll_action'),
array('title' => $strremove));
}
}
?>
</div><?php
if (!in_array($question->qtype, array('description', 'missingtype')) && !$reordertool) {
?>
<div class="points">
<form method="post" action="edit.php" class="quizsavegradesform"><div>
<fieldset class="invisiblefieldset" style="display: block;">
<label for="<?php echo "inputq$question->id" ?>"><?php echo $strmaxmark; ?></label>:<br />
<input type="hidden" name="sesskey" value="<?php echo sesskey() ?>" />
<?php echo html_writer::input_hidden_params($pageurl); ?>
<input type="hidden" name="savechanges" value="save" />
<?php
echo '<input type="text" name="g' . $question->id .
'" id="inputq' . $question->id .
'" size="' . ($quiz->decimalpoints + 2) .
'" value="' . (0 + $quiz->grades[$qnum]) .
'" tabindex="' . ($lastindex + $qno) . '" />';
?>
<input type="submit" class="pointssubmitbutton" value="<?php echo $strsave; ?>" />
</fieldset>
<?php
if ($question->qtype == 'random') {
echo '<a href="' . $questionurl->out() .
'" class="configurerandomquestion">' .
get_string("configurerandomquestion", "quiz") . '</a>';
}
?>
</div>
</form>
</div>
<?php
} else if ($reordertool) {
if ($qnum) {
?>
<div class="qorder">
<?php
echo '<input type="text" name="o' . $question->id .
'" size="2" value="' . (10*$count + 10) .
'" tabindex="' . ($lastindex + $qno) . '" />';
?>
</div>
<?php
}
}
?>
<div class="questioncontentcontainer">
<?php
if ($question->qtype == 'random') { // It is a random question.
if (!$reordertool) {
quiz_print_randomquestion($question, $pageurl, $quiz, $quiz_qbanktool);
} else {
quiz_print_randomquestion_reordertool($question, $pageurl, $quiz);
}
} else { // It is a single question.
if (!$reordertool) {
quiz_print_singlequestion($question, $returnurl, $quiz);
} else {
quiz_print_singlequestion_reordertool($question, $returnurl, $quiz);
}
}
?>
</div>
</div>
</div>
</div>
<?php
}
}
// A page break: end the existing page.
if ($qnum == 0) {
if ($pageopen) {
if (!$reordertool && !($quiz->shufflequestions &&
$count < $questiontotalcount - 1)) {
quiz_print_pagecontrols($quiz, $pageurl, $pagecount,
$hasattempts, $defaultcategoryobj, $canaddquestion, $canaddrandom);
} else if ($count < $questiontotalcount - 1) {
// Do not include the last page break for reordering
// to avoid creating a new extra page in the end.
echo '<input type="hidden" name="opg' . $pagecount . '" size="2" value="' .
(10*$count + 10) . '" />';
}
echo "</div></div>";
if (!$reordertool && !$quiz->shufflequestions) {
echo $OUTPUT->container_start('addpage');
$url = new moodle_url($pageurl->out_omit_querystring(),
array('cmid' => $quiz->cmid, 'courseid' => $quiz->course,
'addpage' => $count, 'sesskey' => sesskey()));
echo $OUTPUT->single_button($url, get_string('addpagehere', 'quiz'), 'post',
array('disabled' => $hasattempts,
'actions' => array(new component_action('click',
'M.core_scroll_manager.save_scroll_action'))));
echo $OUTPUT->container_end();
}
$pageopen = false;
$count++;
}
}
}
if ($reordertool) {
echo $reordercontrolsbottom;
echo '</div></form>';
}
}
$viewobj->editurl = new moodle_url('/mod/quiz/edit.php', array('cmid' => $cm->id));
$viewobj->backtocourseurl = new moodle_url('/course/view.php', array('id' => $course->id));
$viewobj->startattempturl = $quizobj->start_attempt_url();
$viewobj->startattemptwarning = $quizobj->confirm_start_attempt_message($unfinished);
$viewobj->popuprequired = $accessmanager->attempt_must_be_in_popup();
$viewobj->popupoptions = $accessmanager->get_popup_options();
// Display information about this quiz.
$viewobj->infomessages = $viewobj->accessmanager->describe_rules();
if ($quiz->attempts != 1) {
$viewobj->infomessages[] = get_string('gradingmethod', 'quiz',
quiz_get_grading_option_name($quiz->grademethod));
}
// Determine wheter a start attempt button should be displayed.
$viewobj->quizhasquestions = (bool) quiz_clean_layout($quiz->questions, true);
$viewobj->preventmessages = array();
if (!$viewobj->quizhasquestions) {
$viewobj->buttontext = '';
} else {
if ($unfinished) {
if ($canattempt) {
$viewobj->buttontext = get_string('continueattemptquiz', 'quiz');
} else if ($canpreview) {
$viewobj->buttontext = get_string('continuepreview', 'quiz');
}
} else {
if ($canattempt) {
$viewobj->preventmessages = $viewobj->accessmanager->prevent_new_attempt(
/**
* Prints a list of quiz questions for the edit.php main view for edit
* ($reordertool = false) and order and paging ($reordertool = true) tabs
*
* @return int sum of maximum grades
* @param object $quiz This is not the standard quiz object used elsewhere but
* it contains the quiz layout in $quiz->questions and the grades in
* $quiz->grades
* @param object $pageurl The url of the current page with the parameters required
* for links returning to the current page, as a moodle_url object
* @param boolean $allowdelete Indicates whether the delete icons should be displayed
* @param boolean $reordertool Indicates whether the reorder tool should be displayed
* @param boolean $quiz_qbanktool Indicates whether the question bank should be displayed
* @param boolean $hasattempts Indicates whether the quiz has attempts
*/
function quiz_print_question_list($quiz, $pageurl, $allowdelete = true, $reordertool = false, $quiz_qbanktool = false, $hasattempts = false)
{
global $USER, $CFG, $QTYPES, $DB;
$strorder = get_string('order');
$strquestionname = get_string('questionname', 'quiz');
$strgrade = get_string('grade');
$strremove = get_string('remove', 'quiz');
$stredit = get_string('edit');
$strview = get_string('view');
$straction = get_string('action');
$strmove = get_string('move');
$strmoveup = get_string('moveup');
$strmovedown = get_string('movedown');
$strsave = get_string('save', 'quiz');
$strreorderquestions = get_string('reorderquestions', 'quiz');
$strselectall = get_string('selectall', 'quiz');
$strselectnone = get_string('selectnone', 'quiz');
$strtype = get_string('type', 'quiz');
$strpreview = get_string('preview', 'quiz');
if ($quiz->questions) {
list($usql, $params) = $DB->get_in_or_equal(explode(',', $quiz->questions));
$questions = $DB->get_records_sql("SELECT q.*,c.contextid\n FROM {question} q,\n {question_categories} c\n WHERE q.id {$usql}\n AND q.category = c.id", $params);
} else {
$questions = array();
}
$layout = quiz_clean_layout($quiz->questions);
$order = explode(',', $layout);
$lastindex = count($order) - 1;
$disabled = '';
$pagingdisabled = '';
if ($hasattempts) {
$disabled = 'disabled="disabled"';
}
if ($hasattempts || $quiz->shufflequestions) {
$pagingdisabled = 'disabled="disabled"';
}
$reordercontrolssetdefaultsubmit = '<div style="display:none;">' . '<input type="submit" name="savechanges" value="' . $strreorderquestions . '" ' . $pagingdisabled . ' /></div>';
$reordercontrols1 = '<div class="addnewpagesafterselected">' . '<input type="submit" name="addnewpagesafterselected" value="' . get_string('addnewpagesafterselected', 'quiz') . '" ' . $pagingdisabled . ' /></div>';
$reordercontrols1 .= '<div class="quizdeleteselected">' . '<input type="submit" name="quizdeleteselected" ' . 'onclick="return confirm(\'' . get_string('areyousureremoveselected', 'quiz') . '\');" value="' . get_string('removeselected', 'quiz') . '" ' . $disabled . ' /></div>';
$a = '<input name="moveselectedonpagetop" type="text" size="2" ' . $pagingdisabled . ' />';
$reordercontrols2top = '<div class="moveselectedonpage">' . get_string('moveselectedonpage', 'quiz', $a) . '<input type="submit" name="savechanges" value="' . $strmove . '" ' . $pagingdisabled . ' />' . '
<br /><input type="submit" name="savechanges" value="' . $strreorderquestions . '" /></div>';
$reordercontrols2bottom = '<div class="moveselectedonpage">' . '<input type="submit" name="savechanges" value="' . $strreorderquestions . '" /><br />' . get_string('moveselectedonpage', 'quiz', $a) . '<input type="submit" name="savechanges" value="' . $strmove . '" ' . $pagingdisabled . ' /> ' . '</div>';
$reordercontrols3 = '<a href="javascript:select_all_in(\'FORM\', null, ' . '\'quizquestions\');">' . $strselectall . '</a> /';
$reordercontrols3 .= ' <a href="javascript:deselect_all_in(\'FORM\', ' . 'null, \'quizquestions\');">' . $strselectnone . '</a>';
$reordercontrolstop = '<div class="reordercontrols">' . $reordercontrolssetdefaultsubmit . $reordercontrols1 . $reordercontrols2top . $reordercontrols3 . "</div>";
$reordercontrolsbottom = '<div class="reordercontrols">' . $reordercontrolssetdefaultsubmit . $reordercontrols2bottom . $reordercontrols1 . $reordercontrols3 . "</div>";
if ($reordertool) {
echo '<form method="post" action="edit.php" id="quizquestions"><div>';
echo $pageurl->hidden_params_out();
echo '<input type="hidden" name="sesskey" value="' . sesskey() . '" />';
echo $reordercontrolstop;
}
//the current question ordinal (no descriptions)
$qno = 1;
//the current question (includes questions and descriptions)
$questioncount = 0;
//the ordinal of current element in the layout
//(includes page breaks, questions and descriptions)
$count = 0;
//the current page number in iteration
$pagecount = 0;
$sumgrade = 0;
$pageopen = false;
$returnurl = $pageurl->out();
$questiontotalcount = count($order);
foreach ($order as $i => $qnum) {
$reordercheckbox = '';
$reordercheckboxlabel = '';
$reordercheckboxlabelclose = '';
if ($qnum && empty($questions[$qnum])) {
continue;
}
// If the questiontype is missing change the question type
if ($qnum && !array_key_exists($questions[$qnum]->qtype, $QTYPES)) {
$questions[$qnum]->qtype = 'missingtype';
}
$deletex = "delete.gif";
if ($qnum != 0 || $qnum == 0 && !$pageopen) {
//this is either a question or a page break after another
// (no page is currently open)
if (!$pageopen) {
//if no page is open, start display of a page
$pagecount++;
echo '<div class="quizpage"><span class="pagetitle">' . get_string('page') . ' ' . $pagecount . '</span><div class="pagecontent">';
$pageopen = true;
}
if ($qnum == 0 && $i < $questiontotalcount) {
// This is the second successive page break. Tell the user the page is empty.
echo '<div class="pagestatus">';
print_string('noquestionsonpage', 'quiz');
echo '</div>';
if ($allowdelete && !$quiz->questionsperpage) {
echo '<div class="quizpagedelete">';
echo '<a title="' . get_string('removeemptypage', 'quiz') . '" href="' . $pageurl->out_action(array('deleteemptypage' => $i - 1)) . '"><img src="' . $CFG->pixpath . '/t/delete.gif" ' . 'class="iconsmall" alt="' . $strremove . '" /></a>';
echo '</div>';
}
}
if ($qnum != 0) {
$question = $questions[$qnum];
$questionparams = array('returnurl' => $returnurl, 'cmid' => $quiz->cmid, 'id' => $question->id);
$questionurl = new moodle_url("{$CFG->wwwroot}/question/question.php", $questionparams);
$questioncount++;
//this is an actual question
/* Display question start */
?>
<div class="question">
<div class="questioncontainer <?php
echo $question->qtype;
?>
">
<div class="qnum">
<?php
$reordercheckbox = '';
$reordercheckboxlabel = '';
$reordercheckboxlabelclose = '';
if ($reordertool) {
$reordercheckbox = '<input type="checkbox" name="s' . $question->id . '" id="s' . $question->id . '" />';
$reordercheckboxlabel = '<label for="s' . $question->id . '">';
$reordercheckboxlabelclose = '</label>';
}
if (!$quiz->shufflequestions) {
// Print and increment question number
$questioncountstring = '';
if ($questioncount > 999 || $reordertool && $questioncount > 99) {
$questioncountstring = "{$reordercheckboxlabel}<small>{$questioncount}</small>" . $reordercheckboxlabelclose . $reordercheckbox;
} else {
$questioncountstring = $reordercheckboxlabel . $questioncount . $reordercheckboxlabelclose . $reordercheckbox;
}
echo $questioncountstring;
$qno += $question->length;
} else {
echo "{$reordercheckboxlabel} ? {$reordercheckboxlabelclose}" . " {$reordercheckbox}";
}
?>
</div>
<div class="content">
<div class="questioncontrols">
<?php
if ($count != 0) {
if (!$hasattempts) {
$upbuttonclass = '';
if ($count >= $lastindex - 1) {
$upbuttonclass = 'upwithoutdown';
}
echo "<a title=\"{$strmoveup}\" href=\"" . $pageurl->out_action(array('up' => $question->id)) . "\"><img\n src=\"{$CFG->pixpath}/t/up.gif\" class=\"iconsmall\n {$upbuttonclass}\" alt=\"{$strmoveup}\" /></a>";
}
}
if ($count < $lastindex - 1) {
if (!$hasattempts) {
echo "<a title=\"{$strmovedown}\" href=\"" . $pageurl->out_action(array('down' => $question->id)) . "\"><img\n src=\"{$CFG->pixpath}/t/down.gif\" class=\"iconsmall\"" . " alt=\"{$strmovedown}\" /></a>";
}
}
if ($allowdelete && question_has_capability_on($question, 'use', $question->category)) {
// remove from quiz, not question delete.
if (!$hasattempts) {
echo "<a title=\"{$strremove}\" href=\"" . $pageurl->out_action(array('remove' => $question->id)) . "\">\n <img src=\"{$CFG->pixpath}/t/delete.gif\" " . "class=\"iconsmall\" alt=\"{$strremove}\" /></a>";
}
}
?>
</div><?php
if ($question->qtype != 'description' && !$reordertool) {
?>
<div class="points">
<form method="post" action="edit.php"><div>
<fieldset class="invisiblefieldset" style="display: block;">
<label for="<?php
echo "inputq{$question->id}";
?>
"><?php
echo $strgrade;
?>
</label>:<br />
<input type="hidden" name="sesskey" value="<?php
echo sesskey();
?>
" />
<?php
echo $pageurl->hidden_params_out();
?>
<input type="hidden" name="savechanges" value="save" />
<?php
echo '<input type="text" name="g' . $question->id . '" id="inputq' . $question->id . '" size="' . ($quiz->decimalpoints + 2) . '" value="' . (0 + $quiz->grades[$qnum]) . '" tabindex="' . ($lastindex + $qno) . '" />';
?>
<input type="submit" class="pointssubmitbutton" value="<?php
echo $strsave;
?>
" />
</fieldset>
<?php
if ($question->qtype == 'random') {
echo '<a href="' . $questionurl->out() . '" class="configurerandomquestion">' . get_string("configurerandomquestion", "quiz") . '</a>';
}
?>
</div>
</form>
</div>
<?php
} else {
if ($reordertool) {
if ($qnum) {
?>
<div class="qorder">
<?php
echo '<input type="text" name="o' . $question->id . '" size="2" value="' . (10 * $count + 10) . '" tabindex="' . ($lastindex + $qno) . '" />';
?>
<!-- <input type="submit" class="pointssubmitbutton" value="<?php
echo $strsave;
?>
" /> -->
</div>
<?php
}
}
}
?>
<div class="questioncontentcontainer">
<?php
if ($question->qtype == 'random') {
// it is a random question
if (!$reordertool) {
quiz_print_randomquestion($question, $pageurl, $quiz, $quiz_qbanktool);
} else {
quiz_print_randomquestion_reordertool($question, $pageurl, $quiz);
}
} else {
// it is a single question
if (!$reordertool) {
quiz_print_singlequestion($question, $returnurl, $quiz);
} else {
quiz_print_singlequestion_reordertool($question, $returnurl, $quiz);
}
}
?>
</div>
</div>
</div>
</div>
<?php
/* Display question end */
$count++;
$sumgrade += $quiz->grades[$qnum];
}
}
//a page break: end the existing page.
if ($qnum == 0) {
if ($pageopen) {
if (!$reordertool && !($quiz->shufflequestions && $i < $questiontotalcount - 1)) {
quiz_print_pagecontrols($quiz, $pageurl, $pagecount, $hasattempts);
} else {
if ($i < $questiontotalcount - 1) {
//do not include the last page break for reordering
//to avoid creating a new extra page in the end
echo '<input type="hidden" name="opg' . $pagecount . '" size="2" value="' . (10 * $count + 10) . '" />';
}
}
echo "</div></div>";
if (!$reordertool && !$quiz->shufflequestions) {
echo "<div class=\"addpage\">";
print_single_button($pageurl->out(true), array('cmid' => $quiz->cmid, 'courseid' => $quiz->course, 'addpage' => $count, 'sesskey' => sesskey()), get_string('addpagehere', 'quiz'), 'get', '_self', false, '', $hasattempts);
echo "</div>";
}
$pageopen = false;
$count++;
}
}
}
if ($reordertool) {
echo $reordercontrolsbottom;
echo '</div></form>';
}
return $sumgrade;
}
private function determine_layout()
{
$this->pagelayout = array();
// Break up the layout string into pages.
$pagelayouts = explode(',0', quiz_clean_layout($this->attempt->layout, true));
// Strip off any empty last page (normally there is one).
if (end($pagelayouts) == '') {
array_pop($pagelayouts);
}
// File the ids into the arrays.
$this->pagelayout = array();
foreach ($pagelayouts as $page => $pagelayout) {
$pagelayout = trim($pagelayout, ',');
if ($pagelayout == '') {
continue;
}
$this->pagelayout[$page] = explode(',', $pagelayout);
}
}
/**
* Returns the number of questions in the quiz layout
*
* @param string $layout the string representing the quiz layout.
* @return int The number of questions in the quiz.
*/
function quiz_number_of_questions_in_quiz($layout) {
$layout = quiz_questions_in_quiz(quiz_clean_layout($layout));
$count = substr_count($layout, ',');
if ($layout !== '') {
$count++;
}
return $count;
}
$resultinfo .= '<p class="quizteacherfeedback">' . $gradebookfeedback . "</p>\n";
}
if ($feedbackcolumn) {
$resultinfo .= $OUTPUT->heading(get_string('overallfeedback', 'quiz'), 3, 'main');
$resultinfo .= '<p class="quizgradefeedback">' . quiz_feedback_for_grade($mygrade, $quiz, $context, $cm) . "</p>\n";
}
if ($resultinfo) {
echo $OUTPUT->box($resultinfo, 'generalbox', 'feedback');
}
}
/// Determine if we should be showing a start/continue attempt button,
/// or a button to go back to the course page.
echo $OUTPUT->box_start('quizattempt');
$buttontext = '';
// This will be set something if as start/continue attempt button should appear.
if (!quiz_clean_layout($quiz->questions, true)) {
echo $OUTPUT->heading(get_string("noquestions", "quiz"));
} else {
if ($unfinished) {
if ($canpreview) {
$buttontext = get_string('continuepreview', 'quiz');
} else {
if ($canattempt) {
$buttontext = get_string('continueattemptquiz', 'quiz');
}
}
} else {
if ($canpreview) {
$buttontext = get_string('previewquiznow', 'quiz');
} else {
if ($canattempt) {
/**
* Given an object containing all the necessary data,
* (defined by the form in mod_form.php) this function
* will update an existing instance with new data.
*
* @param object $quiz the data that came from the form.
* @return mixed true on success, false or a string error message on failure.
*/
function quiz_update_instance($quiz, $mform)
{
global $CFG, $DB;
require_once $CFG->dirroot . '/mod/quiz/locallib.php';
// Process the options from the form.
$result = quiz_process_options($quiz);
if ($result && is_string($result)) {
return $result;
}
// Get the current value, so we can see what changed.
$oldquiz = $DB->get_record('quiz', array('id' => $quiz->instance));
// We need two values from the existing DB record that are not in the form,
// in some of the function calls below.
$quiz->sumgrades = $oldquiz->sumgrades;
$quiz->grade = $oldquiz->grade;
// Repaginate, if asked to.
if (!$quiz->shufflequestions && !empty($quiz->repaginatenow)) {
$quiz->questions = quiz_repaginate(quiz_clean_layout($oldquiz->questions, true), $quiz->questionsperpage);
}
unset($quiz->repaginatenow);
// Update the database.
$quiz->id = $quiz->instance;
$DB->update_record('quiz', $quiz);
// Do the processing required after an add or an update.
quiz_after_add_or_update($quiz);
if ($oldquiz->grademethod != $quiz->grademethod) {
quiz_update_all_final_grades($quiz);
quiz_update_grades($quiz);
}
$quizdateschanged = $oldquiz->timelimit != $quiz->timelimit || $oldquiz->timeclose != $quiz->timeclose || $oldquiz->graceperiod != $quiz->graceperiod;
if ($quizdateschanged) {
quiz_update_open_attempts(array('quizid' => $quiz->id));
}
// Delete any previous preview attempts.
quiz_delete_previews($quiz);
return true;
}
/**
* Update the sumgrades field of the quiz. This needs to be called whenever
* the grading structure of the quiz is changed. For example if a question is
* added or removed, or a question weight is changed.
*
* @param object $quiz a quiz.
*/
function quiz_update_sumgrades($quiz) {
global $DB;
$sql = 'UPDATE {quiz}
SET sumgrades = COALESCE((
SELECT SUM(grade)
FROM {quiz_question_instances}
WHERE quiz = {quiz}.id
), 0)
WHERE id = ?';
$DB->execute($sql, array($quiz->id));
$quiz->sumgrades = $DB->get_field('quiz', 'sumgrades', array('id' => $quiz->id));
if ($quiz->sumgrades < 0.000005 && quiz_clean_layout($quiz->questions, true)) {
// If there is at least one question in the quiz, and the sumgrades has been
// set to 0, then also set the maximum possible grade to 0.
quiz_set_grade(0, $quiz);
}
}
/**
* Creates an object to represent a new attempt at a quiz
*
* Creates an attempt object to represent an attempt at the quiz by the current
* user starting at the current time. The ->id field is not set. The object is
* NOT written to the database.
*
* @param object $quiz the quiz to create an attempt for.
* @param integer $attemptnumber the sequence number for the attempt.
* @param object $lastattempt the previous attempt by this user, if any. Only needed
* if $attemptnumber > 1 and $quiz->attemptonlast is true.
* @param integer $timenow the time the attempt was started at.
* @param boolean $ispreview whether this new attempt is a preview.
*
* @return object the newly created attempt object.
*/
function quiz_create_attempt($quiz, $attemptnumber, $lastattempt, $timenow, $ispreview = false)
{
global $USER;
if ($attemptnumber == 1 || !$quiz->attemptonlast) {
/// We are not building on last attempt so create a new attempt.
$attempt = new stdClass();
$attempt->quiz = $quiz->id;
$attempt->userid = $USER->id;
$attempt->preview = 0;
if ($quiz->shufflequestions) {
$attempt->layout = quiz_clean_layout(quiz_repaginate($quiz->questions, $quiz->questionsperpage, true), true);
} else {
$attempt->layout = quiz_clean_layout($quiz->questions, true);
}
} else {
/// Build on last attempt.
if (empty($lastattempt)) {
print_error('cannotfindprevattempt', 'quiz');
}
$attempt = $lastattempt;
}
$attempt->attempt = $attemptnumber;
$attempt->sumgrades = 0.0;
$attempt->timestart = $timenow;
$attempt->timefinish = 0;
$attempt->timemodified = $timenow;
$attempt->uniqueid = question_new_attempt_uniqueid();
/// If this is a preview, mark it as such.
if ($ispreview) {
$attempt->preview = 1;
}
return $attempt;
}
/**
* Populate {@link $questionids} and {@link $pagequestionids} from the layout.
*/
protected function determine_layout()
{
$this->questionids = array();
$this->pagequestionids = array();
// Get the appropriate layout string (from quiz or attempt).
$layout = $this->get_layout_string();
if (empty($layout)) {
// Nothing to do.
return;
}
// Break up the layout string into pages.
$pagelayouts = explode(',0', quiz_clean_layout($layout, true));
// Strip off any empty last page (normally there is one).
if (end($pagelayouts) == '') {
array_pop($pagelayouts);
}
// File the ids into the arrays.
$this->questionids = array();
$this->pagequestionids = array();
foreach ($pagelayouts as $page => $pagelayout) {
$pagelayout = trim($pagelayout, ',');
if ($pagelayout == '') {
continue;
}
$this->pagequestionids[$page] = explode(',', $pagelayout);
foreach ($this->pagequestionids[$page] as $id) {
$this->questionids[] = $id;
}
}
}
/**
* Generates the view attempt button
*
* @param int $course The course ID
* @param array $quiz Array containging quiz date
* @param int $cm The Course Module ID
* @param int $context The page Context ID
* @param mod_quiz_view_object $viewobj
* @param string $buttontext
*/
public function view_attempt_button($course, $quiz, $cm, $context, $viewobj,
$buttontext, $preventmessages) {
$output = '';
// Determine if we should be showing a start/continue attempt button,
// or a button to go back to the course page.
$output .= $this->box_start('quizattempt');
// Now actually print the appropriate button.
if (!quiz_clean_layout($quiz->questions, true)) {
$output .= quiz_no_questions_message($quiz, $cm, $context);
}
if ($preventmessages) {
$output .= $this->access_messages($preventmessages);
}
if ($buttontext) {
$output .= $viewobj->accessmanager->print_start_attempt_button($viewobj->canpreview,
$buttontext, $viewobj->unfinished);
} else if ($buttontext === '') {
$output .= $this->single_button(new moodle_url('/course/view.php',
array('id' => $course->id)), get_string('backtocourse', 'quiz'), 'get',
array('class' => 'continuebutton'));
}
$output .= $this->box_end();
return $output;
}
/**
* Given an object containing all the necessary data,
* (defined by the form in mod_form.php) this function
* will update an existing instance with new data.
*
* @param object $quiz the data that came from the form.
* @return mixed true on success, false or a string error message on failure.
*/
function quiz_update_instance($quiz, $mform) {
global $CFG, $DB;
// Process the options from the form.
$result = quiz_process_options($quiz);
if ($result && is_string($result)) {
return $result;
}
$oldquiz = $DB->get_record('quiz', array('id' => $quiz->instance));
// Repaginate, if asked to.
if (!$quiz->shufflequestions && !empty($quiz->repaginatenow)) {
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
$quiz->questions = quiz_repaginate(quiz_clean_layout($oldquiz->questions, true),
$quiz->questionsperpage);
}
unset($quiz->repaginatenow);
// Update the database.
$quiz->id = $quiz->instance;
$DB->update_record('quiz', $quiz);
// Do the processing required after an add or an update.
quiz_after_add_or_update($quiz);
if ($oldquiz->grademethod != $quiz->grademethod) {
require_once($CFG->dirroot . '/mod/quiz/locallib.php');
$quiz->sumgrades = $oldquiz->sumgrades;
$quiz->grade = $oldquiz->grade;
quiz_update_all_final_grades($quiz);
quiz_update_grades($quiz);
}
// Delete any previous preview attempts.
quiz_delete_previews($quiz);
return true;
}
