/**
* Display the report.
*/
public function display($game, $cm, $course)
{
global $CFG, $SESSION, $DB;
// Define some strings.
$strreallydel = addslashes(get_string('deleteattemptcheck', 'game'));
$strtimeformat = get_string('strftimedatetime');
$strreviewquestion = get_string('reviewresponse', 'quiz');
// Only print headers if not asked to download data.
if (!($download = optional_param('download', null))) {
$this->print_header_and_tabs($cm, $course, $game, $reportmode = "overview");
}
// Deal with actions.
$action = optional_param('action', '', PARAM_ACTION);
switch ($action) {
case 'delete':
// Some attempts need to be deleted.
$attemptids = optional_param('attemptid', array(), PARAM_INT);
foreach ($attemptids as $attemptid) {
if ($attemptid && ($todelete = get_record('game_attempts', 'id', $attemptid))) {
delete_records('game_attempts', 'id', $attemptid);
delete_records('game_queries', 'attemptid', $attemptid);
// Search game_attempts for other instances by this user.
// If none, then delete record for this game, this user from game_grades.
// else recalculate best grade.
$userid = $todelete->userid;
if (!record_exists('game_attempts', 'userid', $userid, 'gameid', $game->id)) {
delete_records('game_grades', 'userid', $userid, 'gameid', $game->id);
} else {
game_save_best_score($game, $userid);
}
}
}
break;
}
// Print information on the number of existing attempts.
if (!$download) {
// Do not print notices when downloading.
if ($attemptnum = count_records('game_attempts', 'gameid', $game->id)) {
$a = new stdClass();
$a->attemptnum = $attemptnum;
$a->studentnum = count_records_select('game_attempts', "gameid = '{$game->id}' AND preview = '0'", 'COUNT(DISTINCT userid)');
$a->studentstring = $course->students;
notify(get_string('numattempts', 'game', $a));
}
}
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// Find out current groups mode.
if ($groupmode = groupmode($course, $cm)) {
// Groups are being used.
if (!$download) {
$currentgroup = setup_and_print_groups($course, $groupmode, "report.php?id={$cm->id}&mode=overview");
} else {
$currentgroup = get_and_set_current_group($course, $groupmode);
}
} else {
$currentgroup = get_and_set_current_group($course, $groupmode);
}
// Set table options.
$noattempts = optional_param('noattempts', 0, PARAM_INT);
$detailedmarks = optional_param('detailedmarks', 0, PARAM_INT);
$pagesize = optional_param('pagesize', 10, PARAM_INT);
$hasfeedback = game_has_feedback($game->id) && $game->grade > 1.0E-7;
if ($pagesize < 1) {
$pagesize = 10;
}
// Now check if asked download of data.
if ($download) {
$filename = clean_filename("{$course->shortname} " . format_string($game->name, true));
$sort = '';
}
// Define table columns.
$tablecolumns = array('checkbox', 'picture', 'fullname', 'timestart', 'timefinish', 'duration');
$tableheaders = array(null, '', get_string('fullname'), get_string('startedon', 'game'), get_string('timecompleted', 'game'), get_string('attemptduration', 'game'));
if ($game->grade) {
$tablecolumns[] = 'grade';
$tableheaders[] = get_string('grade', 'game') . '/' . $game->grade;
}
if ($detailedmarks) {
// We want to display marks for all questions.
// Start by getting all questions.
$questionlist = game_questions_in_game($game->questions);
$questionids = explode(',', $questionlist);
$sql = "SELECT q.*, i.score AS maxgrade, i.id AS instance" . " FROM {question} q," . " {game_queries} i" . " WHERE i.gameid = '{$game->id}' AND q.id = i.questionid" . " AND q.id IN ({$questionlist})";
if (!($questions = get_records_sql($sql))) {
print_error('No questions found');
}
$number = 1;
foreach ($questionids as $key => $id) {
if ($questions[$id]->length) {
// Only print questions of non-zero length.
$tablecolumns[] = '$' . $id;
$tableheaders[] = '#' . $number;
$questions[$id]->number = $number;
$number += $questions[$id]->length;
} else {
// Get rid of zero length questions.
unset($questions[$id]);
unset($questionids[$key]);
}
}
}
if ($hasfeedback) {
$tablecolumns[] = 'feedbacktext';
$tableheaders[] = get_string('feedback', 'game');
}
if (!$download) {
// Set up the table.
$table = new flexible_table('mod-game-report-overview-report');
$table->define_columns($tablecolumns);
$table->define_headers($tableheaders);
$table->define_baseurl($CFG->wwwroot . '/mod/game/report.php?mode=overview&id=' . $cm->id . '&noattempts=' . $noattempts . '&detailedmarks=' . $detailedmarks . '&pagesize=' . $pagesize);
$table->sortable(true);
$table->collapsible(true);
$table->column_suppress('picture');
$table->column_suppress('fullname');
$table->column_class('picture', 'picture');
$table->set_attribute('cellspacing', '0');
$table->set_attribute('id', 'attempts');
$table->set_attribute('class', 'generaltable generalbox');
// Start working -- this is necessary as soon as the niceties are over.
$table->setup();
} else {
if ($download == 'ODS') {
require_once "{$CFG->libdir}/odslib.class.php";
$filename .= ".ods";
// Creating a workbook.
$workbook = new MoodleODSWorkbook("-");
// Sending HTTP headers.
$workbook->send($filename);
// Creating the first worksheet.
$sheettitle = get_string('reportoverview', 'game');
$myxls =& $workbook->add_worksheet($sheettitle);
// Format types.
$format =& $workbook->add_format();
$format->set_bold(0);
$formatbc =& $workbook->add_format();
$formatbc->set_bold(1);
$formatbc->set_align('center');
$formatb =& $workbook->add_format();
$formatb->set_bold(1);
$formaty =& $workbook->add_format();
$formaty->set_bg_color('yellow');
$formatc =& $workbook->add_format();
$formatc->set_align('center');
$formatr =& $workbook->add_format();
$formatr->set_bold(1);
$formatr->set_color('red');
$formatr->set_align('center');
$formatg =& $workbook->add_format();
$formatg->set_bold(1);
$formatg->set_color('green');
$formatg->set_align('center');
// Here starts workshhet headers.
$headers = array(get_string('fullname'), get_string('startedon', 'game'), get_string('timecompleted', 'game'), get_string('attemptduration', 'game'));
if ($game->grade) {
$headers[] = get_string('grade', 'game') . '/' . $game->grade;
}
if ($detailedmarks) {
foreach ($questionids as $id) {
$headers[] = '#' . $questions[$id]->number;
}
}
if ($hasfeedback) {
$headers[] = get_string('feedback', 'game');
}
$colnum = 0;
foreach ($headers as $item) {
$myxls->write(0, $colnum, $item, $formatbc);
$colnum++;
}
$rownum = 1;
} else {
if ($download == 'Excel') {
require_once "{$CFG->libdir}/excellib.class.php";
$filename .= ".xls";
// Creating a workbook.
$workbook = new MoodleExcelWorkbook("-");
// Sending HTTP headers.
$workbook->send($filename);
// Creating the first worksheet.
$sheettitle = get_string('reportoverview', 'game');
$myxls =& $workbook->add_worksheet($sheettitle);
// Format types.
$format =& $workbook->add_format();
$format->set_bold(0);
$formatbc =& $workbook->add_format();
$formatbc->set_bold(1);
$formatbc->set_align('center');
$formatb =& $workbook->add_format();
$formatb->set_bold(1);
$formaty =& $workbook->add_format();
$formaty->set_bg_color('yellow');
$formatc =& $workbook->add_format();
$formatc->set_align('center');
$formatr =& $workbook->add_format();
$formatr->set_bold(1);
$formatr->set_color('red');
$formatr->set_align('center');
$formatg =& $workbook->add_format();
$formatg->set_bold(1);
$formatg->set_color('green');
$formatg->set_align('center');
// Here starts workshhet headers.
$headers = array(get_string('fullname'), get_string('startedon', 'game'), get_string('timecompleted', 'game'), get_string('attemptduration', 'game'));
if ($game->grade) {
$headers[] = get_string('grade', 'game') . '/' . $game->grade;
}
if ($detailedmarks) {
foreach ($questionids as $id) {
$headers[] = '#' . $questions[$id]->number;
}
}
if ($hasfeedback) {
$headers[] = get_string('feedback', 'game');
}
$colnum = 0;
foreach ($headers as $item) {
$myxls->write(0, $colnum, $item, $formatbc);
$colnum++;
}
$rownum = 1;
} else {
if ($download == 'CSV') {
$filename .= ".txt";
header("Content-Type: application/download\n");
header("Content-Disposition: attachment; filename=\"{$filename}\"");
header("Expires: 0");
header("Cache-Control: must-revalidate,post-check=0,pre-check=0");
header("Pragma: public");
$headers = get_string('fullname') . "\t" . get_string('startedon', 'game') . "\t" . get_string('timecompleted', 'game') . "\t" . get_string('attemptduration', 'game');
if ($game->grade) {
$headers .= "\t" . get_string('grade', 'game') . "/" . $game->grade;
}
if ($detailedmarks) {
foreach ($questionids as $id) {
$headers .= "\t#" . $questions[$id]->number;
}
}
if ($hasfeedback) {
$headers .= "\t" . get_string('feedback', 'game');
}
echo $headers . " \n";
}
}
}
}
$contextlists = get_related_contexts_string(get_context_instance(CONTEXT_COURSE, $course->id));
// Construct the SQL.
$select = 'SELECT qa.id,' . sql_concat('u.id', '\'#\'', $db->IfNull('qa.attempt', '0')) . ' AS uniqueid, ' . 'qa.id as attemptuniqueid, qa.id AS attempt, u.id AS userid, u.firstname, u.lastname, u.picture, ' . 'qa.score, qa.timefinish, qa.timestart, qa.timefinish - qa.timestart AS duration ';
if ($course->id != SITEID) {
// This is too complicated, so just do it for each of the four cases.
if (!empty($currentgroup) && empty($noattempts)) {
// We want a particular group and we only want to see students WITH attempts.
// So join on groups_members and do an inner join on attempts.
$from = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id ' . groups_members_join_sql() . 'JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = ' . $game->id;
$where = ' WHERE ra.contextid ' . $contextlists . ' AND ' . groups_members_where_sql($currentgroup) . ' AND qa.preview = 0';
} else {
if (!empty($currentgroup) && !empty($noattempts)) {
// We want a particular group and we want to do something funky with attempts.
// So join on groups_members and left join on attempts...
$from = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id ' . groups_members_join_sql() . 'LEFT JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = ' . $game->id;
$where = ' WHERE ra.contextid ' . $contextlists . ' AND ' . groups_members_where_sql($currentgroup);
if ($noattempts == 1) {
// Noattempts = 1 means only no attempts, so make the left join ask.
// For only records where the right is null (no attempts).
$where .= ' AND qa.userid IS NULL';
// Show ONLY no attempts.
} else {
// We are including attempts, so exclude previews.
$where .= ' AND qa.preview = 0';
}
} else {
if (empty($currentgroup)) {
// We don't care about group, and we to do something funky with attempts.
// So do a left join on attempts.
$from = 'FROM {user} u JOIN {role_assignments} ra ON ra.userid = u.id ' . ' LEFT JOIN {game_attempts} qa ON u.id = qa.userid AND qa.gameid = ' . $game->id;
$where = " WHERE ra.contextid {$contextlists}";
if (empty($noattempts)) {
// Show ONLY students with attempts.
$where .= ' AND qa.userid IS NOT NULL AND qa.preview = 0';
} else {
if ($noattempts == 1) {
// The noattempts = 1 means only no attempts,.
// So make the left join ask for only records where the right is null (no attempts).
// Show ONLY students without attempts.
$where .= ' AND qa.userid IS NULL';
} else {
if ($noattempts == 3) {
// We want all attempts.
$from = 'FROM {user} u JOIN {game_attempts} qa ON u.id = qa.userid ';
$where = ' WHERE qa.gameid = ' . $game->id . ' AND qa.preview = 0';
}
}
}
// The noattempts = 2 means we want all students, with or without attempts.
}
}
}
$countsql = 'SELECT COUNT(DISTINCT(' . sql_concat('u.id', '\'#\'', $db->IfNull('qa.attempt', '0')) . ')) ' . $from . $where;
} else {
if (empty($noattempts)) {
$from = 'FROM {user} u JOIN {game_attempts} qa ON u.id = qa.userid ';
$where = ' WHERE qa.gameid = ' . $game->id . ' AND qa.preview = 0';
$countsql = 'SELECT COUNT(DISTINCT(' . sql_concat('u.id', '\'#\'', $db->IfNull('qa.attempt', '0')) . ')) ' . $from . $where;
}
}
if (!$download) {
// Add extra limits due to initials bar.
if ($table->get_sql_where()) {
$where .= ' AND ' . $table->get_sql_where();
}
// Count the records NOW, before funky question grade sorting messes up $from.
if (!empty($countsql)) {
$totalinitials = count_records_sql($countsql);
if ($table->get_sql_where()) {
$countsql .= ' AND ' . $table->get_sql_where();
}
$total = count_records_sql($countsql);
}
// Add extra limits due to sorting by question grade.
if ($sort = $table->get_sql_sort()) {
$sortparts = explode(',', $sort);
$newsort = array();
$questionsort = false;
foreach ($sortparts as $sortpart) {
$sortpart = trim($sortpart);
if (substr($sortpart, 0, 1) == '$') {
if (!$questionsort) {
$qid = intval(substr($sortpart, 1));
$select .= ', grade ';
$from .= ' LEFT JOIN {question_sessions} qns ON qns.attemptid = qa.id ' . 'LEFT JOIN {question_states} qs ON qs.id = qns.newgraded ';
$where .= ' AND (' . sql_isnull('qns.questionid') . ' OR qns.questionid = ' . $qid . ')';
$newsort[] = 'grade ' . (strpos($sortpart, 'ASC') ? 'ASC' : 'DESC');
$questionsort = true;
}
} else {
$newsort[] = $sortpart;
}
}
// Reconstruct the sort string.
$sort = ' ORDER BY ' . implode(', ', $newsort);
}
// Fix some wired sorting.
if (empty($sort)) {
$sort = ' ORDER BY qa.id';
}
$table->pagesize($pagesize, $total);
}
// If there is feedback, include it in the query.
if ($hasfeedback) {
$select .= ', qf.feedbacktext ';
$from .= " JOIN {game_feedback} qf ON " . "qf.gameid = {$game->id} AND qf.mingrade <= qa.score * {$game->grade} AND qa.score * {$game->grade} < qf.maxgrade";
}
// Fetch the attempts.
if (!empty($from)) {
// If we're in the site course and displaying no attempts, it makes no sense to do the query.
if (!$download) {
$attempts = get_records_sql($select . $from . $where . $sort, $table->get_page_start(), $table->get_page_size());
} else {
$attempts = get_records_sql($select . $from . $where . $sort);
}
} else {
$attempts = array();
}
// Build table rows.
if (!$download) {
$table->initialbars($totalinitials > 20);
}
if (!empty($attempts) || !empty($noattempts)) {
if ($attempts) {
foreach ($attempts as $attempt) {
$picture = print_user_picture($attempt->userid, $course->id, $attempt->picture, false, true);
/* Uncomment the commented lines below if you are choosing to show unenrolled users and
* have uncommented the corresponding lines earlier in this script
* if (in_array($attempt->userid, $unenrolledusers)) {
* $userlink = '<a class="dimmed" href="'.$CFG->wwwroot.
* '/user/view.php?id='.$attempt->userid.'&course='.$course->id.'">'.fullname($attempt).'</a>';
*}
*else {
* $userlink = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.
* $attempt->userid.'&course='.$course->id.'">'.fullname($attempt).'</a>';
*}
*/
if (!$download) {
$row = array('<input type="checkbox" name="attemptid[]" value="' . $attempt->attempt . '" />', $picture, $userlink, empty($attempt->attempt) ? '-' : '<a href="review.php?q=' . $game->id . '&attempt=' . $attempt->attempt . '">' . userdate($attempt->timestart, $strtimeformat) . '</a>', empty($attempt->timefinish) ? '-' : '<a href="review.php?q=' . $game->id . '&attempt=' . $attempt->attempt . '">' . userdate($attempt->timefinish, $strtimeformat) . '</a>', empty($attempt->attempt) ? '-' : (empty($attempt->timefinish) ? get_string('unfinished', 'game') : format_time($attempt->duration)));
} else {
$row = array(fullname($attempt), empty($attempt->attempt) ? '-' : userdate($attempt->timestart, $strtimeformat), empty($attempt->timefinish) ? '-' : userdate($attempt->timefinish, $strtimeformat), empty($attempt->attempt) ? '-' : (empty($attempt->timefinish) ? get_string('unfinished', 'game') : format_time($attempt->duration)));
}
if ($game->grade) {
if (!$download) {
$row[] = $attempt->score === null ? '-' : '<a href="review.php?q=' . $game->id . '&attempt=' . $attempt->attempt . '">' . round($attempt->score * $game->grade, $game->decimalpoints) . '</a>';
} else {
$row[] = $attempt->score === null ? '-' : round($attempt->score * $game->grade, $game->decimalpoints);
}
}
if ($detailedmarks) {
if (empty($attempt->attempt)) {
foreach ($questionids as $questionid) {
$row[] = '-';
}
} else {
foreach ($questionids as $questionid) {
if ($gradedstateid = get_field('question_sessions', 'newgraded', 'attemptid', $attempt->attemptuniqueid, 'questionid', $questionid)) {
$grade = round(get_field('question_states', 'grade', 'id', $gradedstateid), $game->decimalpoints);
} else {
$grade = '--';
}
if (!$download) {
$row[] = link_to_popup_window('/mod/game/reviewquestion.php?state=' . $gradedstateid . '&number=' . $questions[$questionid]->number, 'reviewquestion', $grade, 450, 650, $strreviewquestion, 'none', true);
} else {
$row[] = $grade;
}
}
}
}
if ($hasfeedback) {
if ($attempt->timefinish) {
$row[] = $attempt->feedbacktext;
} else {
$row[] = '-';
}
}
if (!$download) {
$table->add_data($row);
} else {
if ($download == 'Excel' or $download == 'ODS') {
$colnum = 0;
foreach ($row as $item) {
$myxls->write($rownum, $colnum, $item, $format);
$colnum++;
}
$rownum++;
} else {
if ($download == 'CSV') {
$text = implode("\t", $row);
echo $text . " \n";
}
}
}
}
}
if (!$download) {
// Start form.
echo '<div id="tablecontainer">';
echo '<form id="attemptsform" method="post" action="report.php" ' . 'onsubmit="var menu = document.getElementById(\'menuaction\'); ' . 'return (menu.options[menu.selectedIndex].value == \'delete\' ? confirm(\'' . $strreallydel . '\') : true);">';
echo '<div>';
echo '<input type="hidden" name="id" value="' . $cm->id . '" />';
echo '<input type="hidden" name="mode" value="overview" />';
// Print table.
$table->print_html();
// Print "Select all" etc..
if (!empty($attempts)) {
echo '<table id="commands">';
echo '<tr><td>';
echo '<a href="javascript:select_all_in(\'DIV\',null,\'tablecontainer\');">' . get_string('selectall', 'game') . '</a> / ';
echo '<a href="javascript:deselect_all_in(\'DIV\',null,\'tablecontainer\');">' . get_string('selectnone', 'game') . '</a> ';
echo ' ';
$options = array('delete' => get_string('delete'));
echo choose_from_menu($options, 'action', '', get_string('withselected', 'game'), 'if(this.selectedIndex > 0) submitFormById(\'attemptsform\');', '', true);
echo '<noscript id="noscriptmenuaction" style="display: inline;"><div>';
echo '<input type="submit" value="' . get_string('go') . '" /></div></noscript>';
echo '<script type="text/javascript">' . "\n<!--\n" . 'document.getElementById("noscriptmenuaction").style.display = "none";' . "\n-->\n" . '</script>';
echo '</td></tr></table>';
}
// Close form.
echo '</div>';
echo '</form></div>';
if (!empty($attempts)) {
echo '<table class="boxaligncenter"><tr>';
$options = array();
$options["id"] = "{$cm->id}";
$options["q"] = "{$game->id}";
$options["mode"] = "overview";
$options['sesskey'] = sesskey();
$options["noheader"] = "yes";
$options['noattempts'] = $noattempts;
$options['detailedmarks'] = $detailedmarks;
echo '<td>';
$options["download"] = "ODS";
print_single_button("report.php", $options, get_string("downloadods", 'game'));
echo "</td>\n";
echo '<td>';
$options["download"] = "Excel";
print_single_button("report.php", $options, get_string("downloadexcel"));
echo "</td>\n";
echo '<td>';
$options["download"] = "CSV";
print_single_button('report.php', $options, get_string("downloadtext"));
echo "</td>\n";
echo "<td>";
helpbutton('overviewdownload', get_string('overviewdownload', 'quiz'), 'game');
echo "</td>\n";
echo '</tr></table>';
}
} else {
if ($download == 'Excel' or $download == 'ODS') {
$workbook->close();
exit;
} else {
if ($download == 'CSV') {
exit;
}
}
}
} else {
if (!$download) {
$table->print_html();
}
}
// Print display options.
echo '<div class="controls">';
echo '<form id="options" action="report.php" method="get">';
echo '<div>';
echo '<p>' . get_string('displayoptions', 'game') . ': </p>';
echo '<input type="hidden" name="id" value="' . $cm->id . '" />';
echo '<input type="hidden" name="q" value="' . $game->id . '" />';
echo '<input type="hidden" name="mode" value="overview" />';
echo '<input type="hidden" name="noattempts" value="0" />';
echo '<input type="hidden" name="detailedmarks" value="0" />';
echo '<table id="overview-options" class="boxaligncenter">';
echo '<tr align="left">';
echo '<td><label for="pagesize">' . get_string('pagesize', 'game') . '</label></td>';
echo '<td><input type="text" id="pagesize" name="pagesize" size="3" value="' . $pagesize . '" /></td>';
echo '</tr>';
echo '<tr align="left">';
echo '<td colspan="2">';
$options = array(0 => get_string('attemptsonly', 'game', $course->students));
if ($course->id != SITEID) {
$options[1] = get_string('noattemptsonly', 'game', $course->students);
$options[2] = get_string('allstudents', 'game', $course->students);
$options[3] = get_string('allattempts', 'game');
}
choose_from_menu($options, 'noattempts', $noattempts, '');
echo '</td></tr>';
echo '<tr align="left">';
echo '<td colspan="2"><input type="checkbox" id="checkdetailedmarks" name="detailedmarks" ' . ($detailedmarks ? 'checked="checked" ' : '') . 'value="1" /> <label for="checkdetailedmarks">' . get_string('showdetailedmarks', 'game') . '</label> ';
echo '</td></tr>';
echo '<tr><td colspan="2" align="center">';
echo '<input type="submit" value="' . get_string('go') . '" />';
echo '</td></tr></table>';
echo '</div>';
echo '</form>';
echo '</div>';
echo "\n";
return true;
}
function display($quiz, $cm, $course)
{
/// This function just displays the report
global $CFG, $SESSION, $db, $QTYPES;
$strnoquiz = get_string('noquiz', 'quiz');
$strnoattempts = get_string('noattempts', 'quiz');
/// Only print headers if not asked to download data
$download = optional_param('download', NULL);
if (!$download) {
$this->print_header_and_tabs($cm, $course, $quiz, $reportmode = "analysis");
}
/// Construct the table for this particular report
if (!$quiz->questions) {
print_heading($strnoattempts);
return true;
}
/// Check to see if groups are being used in this quiz
if ($groupmode = groupmode($course, $cm)) {
// Groups are being used
if (!$download) {
$currentgroup = setup_and_print_groups($course, $groupmode, "report.php?id={$cm->id}&mode=analysis");
} else {
$currentgroup = get_and_set_current_group($course, $groupmode);
}
} else {
$currentgroup = get_and_set_current_group($course, $groupmode);
}
// set Table and Analysis stats options
if (!isset($SESSION->quiz_analysis_table)) {
$SESSION->quiz_analysis_table = array('attemptselection' => 0, 'lowmarklimit' => 0, 'pagesize' => 10);
}
foreach ($SESSION->quiz_analysis_table as $option => $value) {
$urlparam = optional_param($option, NULL);
if ($urlparam === NULL) {
${$option} = $value;
} else {
${$option} = $SESSION->quiz_analysis_table[$option] = $urlparam;
}
}
$scorelimit = $quiz->sumgrades * $lowmarklimit / 100;
// ULPGC ecastro DEBUG this is here to allow for different SQL to select attempts
switch ($attemptselection) {
case QUIZ_ALLATTEMPTS:
$limit = '';
$group = '';
break;
case QUIZ_HIGHESTATTEMPT:
$limit = ', max(qa.sumgrades) ';
$group = ' GROUP BY qa.userid ';
break;
case QUIZ_FIRSTATTEMPT:
$limit = ', min(qa.timemodified) ';
$group = ' GROUP BY qa.userid ';
break;
case QUIZ_LASTATTEMPT:
$limit = ', max(qa.timemodified) ';
$group = ' GROUP BY qa.userid ';
break;
}
if ($attemptselection != QUIZ_ALLATTEMPTS) {
$sql = 'SELECT qa.userid ' . $limit . 'FROM ' . $CFG->prefix . 'user u LEFT JOIN ' . $CFG->prefix . 'quiz_attempts qa ON u.id = qa.userid ' . 'WHERE qa.quiz = ' . $quiz->id . ' AND qa.preview = 0 ' . $group;
$usermax = get_records_sql_menu($sql);
}
$groupmembers = '';
$groupwhere = '';
//Add this to the SQL to show only group users
if ($currentgroup) {
$groupmembers = ', ' . groups_members_from_sql();
$groupwhere = ' AND ' . groups_members_where_sql($currentgroup, 'u.id');
}
$sql = 'SELECT qa.* FROM ' . $CFG->prefix . 'quiz_attempts qa, ' . $CFG->prefix . 'user u ' . $groupmembers . 'WHERE u.id = qa.userid AND qa.quiz = ' . $quiz->id . ' AND qa.preview = 0 AND ( qa.sumgrades >= ' . $scorelimit . ' ) ' . $groupwhere;
// ^^^^^^ es posible seleccionar aqu TODOS los quizzes, como quiere Jussi,
// pero habra que llevar la cuenta ed cada quiz para restaura las preguntas (quizquestions, states)
/// Fetch the attempts
$attempts = get_records_sql($sql);
if (empty($attempts)) {
print_heading(get_string('nothingtodisplay'));
$this->print_options_form($quiz, $cm, $attemptselection, $lowmarklimit, $pagesize);
return true;
}
/// Here we rewiew all attempts and record data to construct the table
$questions = array();
$statstable = array();
$questionarray = array();
foreach ($attempts as $attempt) {
$questionarray[] = quiz_questions_in_quiz($attempt->layout);
}
$questionlist = quiz_questions_in_quiz(implode(",", $questionarray));
$questionarray = array_unique(explode(",", $questionlist));
$questionlist = implode(",", $questionarray);
unset($questionarray);
foreach ($attempts as $attempt) {
switch ($attemptselection) {
case QUIZ_ALLATTEMPTS:
$userscore = 0;
// can be anything, not used
break;
case QUIZ_HIGHESTATTEMPT:
$userscore = $attempt->sumgrades;
break;
case QUIZ_FIRSTATTEMPT:
$userscore = $attempt->timemodified;
break;
case QUIZ_LASTATTEMPT:
$userscore = $attempt->timemodified;
break;
}
if ($attemptselection == QUIZ_ALLATTEMPTS || $userscore == $usermax[$attempt->userid]) {
$sql = "SELECT q.*, i.grade AS maxgrade, i.id AS instance" . " FROM {$CFG->prefix}question q," . " {$CFG->prefix}quiz_question_instances i" . " WHERE i.quiz = '{$quiz->id}' AND q.id = i.question" . " AND q.id IN ({$questionlist})";
if (!($quizquestions = get_records_sql($sql))) {
error('No questions found');
}
// Load the question type specific information
if (!get_question_options($quizquestions)) {
error('Could not load question options');
}
// Restore the question sessions to their most recent states
// creating new sessions where required
if (!($states = get_question_states($quizquestions, $quiz, $attempt))) {
error('Could not restore question sessions');
}
$numbers = explode(',', $questionlist);
$statsrow = array();
foreach ($numbers as $i) {
if (!isset($quizquestions[$i]) or !isset($states[$i])) {
continue;
}
$qtype = $quizquestions[$i]->qtype == 'random' ? $states[$i]->options->question->qtype : $quizquestions[$i]->qtype;
$q = get_question_responses($quizquestions[$i], $states[$i]);
if (empty($q)) {
continue;
}
$qid = $q->id;
if (!isset($questions[$qid])) {
$questions[$qid]['id'] = $qid;
$questions[$qid]['qname'] = $quizquestions[$i]->name;
foreach ($q->responses as $answer => $r) {
$r->count = 0;
$questions[$qid]['responses'][$answer] = $r->answer;
$questions[$qid]['rcounts'][$answer] = 0;
$questions[$qid]['credits'][$answer] = $r->credit;
$statsrow[$qid] = 0;
}
}
$responses = get_question_actual_response($quizquestions[$i], $states[$i]);
foreach ($responses as $resp) {
if ($resp) {
if ($key = array_search($resp, $questions[$qid]['responses'])) {
$questions[$qid]['rcounts'][$key]++;
} else {
$test = new stdClass();
$test->responses = $QTYPES[$quizquestions[$i]->qtype]->get_correct_responses($quizquestions[$i], $states[$i]);
if ($key = $QTYPES[$quizquestions[$i]->qtype]->check_response($quizquestions[$i], $states[$i], $test)) {
$questions[$qid]['rcounts'][$key]++;
} else {
$questions[$qid]['responses'][] = $resp;
$questions[$qid]['rcounts'][] = 1;
$questions[$qid]['credits'][] = 0;
}
}
}
}
$statsrow[$qid] = get_question_fraction_grade($quizquestions[$i], $states[$i]);
}
$attemptscores[$attempt->id] = $attempt->sumgrades;
$statstable[$attempt->id] = $statsrow;
}
}
// Statistics Data table built
unset($attempts);
unset($quizquestions);
unset($states);
// now calculate statistics and set the values in the $questions array
$top = max($attemptscores);
$bottom = min($attemptscores);
$gap = ($top - $bottom) / 3;
$top -= $gap;
$bottom += $gap;
foreach ($questions as $qid => $q) {
$questions[$qid] = $this->report_question_stats($q, $attemptscores, $statstable, $top, $bottom);
}
unset($attemptscores);
unset($statstable);
/// Now check if asked download of data
if ($download = optional_param('download', NULL)) {
$filename = clean_filename("{$course->shortname} " . format_string($quiz->name, true));
switch ($download) {
case "Excel":
$this->Export_Excel($questions, $filename);
break;
case "ODS":
$this->Export_ODS($questions, $filename);
break;
case "CSV":
$this->Export_CSV($questions, $filename);
break;
}
}
/// Construct the table for this particular report
$tablecolumns = array('id', 'qname', 'responses', 'credits', 'rcounts', 'rpercent', 'facility', 'qsd', 'disc_index', 'disc_coeff');
$tableheaders = array(get_string('qidtitle', 'quiz_analysis'), get_string('qtexttitle', 'quiz_analysis'), get_string('responsestitle', 'quiz_analysis'), get_string('rfractiontitle', 'quiz_analysis'), get_string('rcounttitle', 'quiz_analysis'), get_string('rpercenttitle', 'quiz_analysis'), get_string('facilitytitle', 'quiz_analysis'), get_string('stddevtitle', 'quiz_analysis'), get_string('dicsindextitle', 'quiz_analysis'), get_string('disccoefftitle', 'quiz_analysis'));
$table = new flexible_table('mod-quiz-report-itemanalysis');
$table->define_columns($tablecolumns);
$table->define_headers($tableheaders);
$table->define_baseurl($CFG->wwwroot . '/mod/quiz/report.php?q=' . $quiz->id . '&mode=analysis');
$table->sortable(true);
$table->no_sorting('rpercent');
$table->collapsible(true);
$table->initialbars(false);
$table->column_class('id', 'numcol');
$table->column_class('credits', 'numcol');
$table->column_class('rcounts', 'numcol');
$table->column_class('rpercent', 'numcol');
$table->column_class('facility', 'numcol');
$table->column_class('qsd', 'numcol');
$table->column_class('disc_index', 'numcol');
$table->column_class('disc_coeff', 'numcol');
$table->column_suppress('id');
$table->column_suppress('qname');
$table->column_suppress('facility');
$table->column_suppress('qsd');
$table->column_suppress('disc_index');
$table->column_suppress('disc_coeff');
$table->set_attribute('cellspacing', '0');
$table->set_attribute('id', 'itemanalysis');
$table->set_attribute('class', 'generaltable generalbox');
// Start working -- this is necessary as soon as the niceties are over
$table->setup();
$tablesort = $table->get_sql_sort();
$sorts = explode(",", trim($tablesort));
if ($tablesort and is_array($sorts)) {
$sortindex = array();
$sortorder = array();
foreach ($sorts as $sort) {
$data = explode(" ", trim($sort));
$sortindex[] = trim($data[0]);
$s = trim($data[1]);
if ($s == "ASC") {
$sortorder[] = SORT_ASC;
} else {
$sortorder[] = SORT_DESC;
}
}
if (count($sortindex) > 0) {
$sortindex[] = "id";
$sortorder[] = SORT_ASC;
foreach ($questions as $qid => $row) {
$index1[$qid] = $row[$sortindex[0]];
$index2[$qid] = $row[$sortindex[1]];
}
array_multisort($index1, $sortorder[0], $index2, $sortorder[1], $questions);
}
}
$format_options = new stdClass();
$format_options->para = false;
$format_options->noclean = true;
$format_options->newlines = false;
// Now it is time to page the data, simply slice the keys in the array
if (!isset($pagesize) || (int) $pagesize < 1) {
$pagesize = 10;
}
$table->pagesize($pagesize, count($questions));
$start = $table->get_page_start();
$pagequestions = array_slice(array_keys($questions), $start, $pagesize);
foreach ($pagequestions as $qnum) {
$q = $questions[$qnum];
$qid = $q['id'];
$question = get_record('question', 'id', $qid);
if (has_capability('moodle/question:manage', get_context_instance(CONTEXT_COURSE, $course->id))) {
$qnumber = " (" . link_to_popup_window('/question/question.php?id=' . $qid, '&cmid=' . $cm->id . 'editquestion', $qid, 450, 550, get_string('edit'), 'none', true) . ") ";
} else {
$qnumber = $qid;
}
$qname = '<div class="qname">' . format_text($question->name . " : ", $question->questiontextformat, $format_options, $quiz->course) . '</div>';
$qicon = print_question_icon($question, true);
$qreview = quiz_question_preview_button($quiz, $question);
$qtext = format_text($question->questiontext, $question->questiontextformat, $format_options, $quiz->course);
$qquestion = $qname . "\n" . $qtext . "\n";
$responses = array();
foreach ($q['responses'] as $aid => $resp) {
$response = new stdClass();
if ($q['credits'][$aid] <= 0) {
$qclass = 'uncorrect';
} elseif ($q['credits'][$aid] == 1) {
$qclass = 'correct';
} else {
$qclass = 'partialcorrect';
}
$response->credit = '<span class="' . $qclass . '">(' . format_float($q['credits'][$aid], 2) . ') </span>';
$response->text = '<span class="' . $qclass . '">' . format_text($resp, FORMAT_MOODLE, $format_options, $quiz->course) . ' </span>';
$count = $q['rcounts'][$aid] . '/' . $q['count'];
$response->rcount = $count;
$response->rpercent = '(' . format_float($q['rcounts'][$aid] / $q['count'] * 100, 0) . '%)';
$responses[] = $response;
}
$facility = format_float($q['facility'] * 100, 0) . "%";
$qsd = format_float($q['qsd'], 3);
$di = format_float($q['disc_index'], 2);
$dc = format_float($q['disc_coeff'], 2);
$response = array_shift($responses);
$table->add_data(array($qnumber . "\n<br />" . $qicon . "\n " . $qreview, $qquestion, $response->text, $response->credit, $response->rcount, $response->rpercent, $facility, $qsd, $di, $dc));
foreach ($responses as $response) {
$table->add_data(array('', '', $response->text, $response->credit, $response->rcount, $response->rpercent, '', '', '', ''));
}
}
print_heading_with_help(get_string("analysistitle", "quiz_analysis"), "itemanalysis", "quiz");
echo '<div id="tablecontainer">';
$table->print_html();
echo '</div>';
$this->print_options_form($quiz, $cm, $attemptselection, $lowmarklimit, $pagesize);
return true;
}
function get_content()
{
global $USER, $CFG, $COURSE;
if ($this->content !== NULL) {
return $this->content;
}
$this->content = new stdClass();
$this->content->text = '';
$this->content->footer = '';
if (empty($this->instance)) {
return $this->content;
}
$timetoshowusers = 300;
//Seconds default
if (isset($CFG->block_online_users_timetosee)) {
$timetoshowusers = $CFG->block_online_users_timetosee * 60;
}
$timefrom = 100 * floor((time() - $timetoshowusers) / 100);
// Round to nearest 100 seconds for better query cache
// Get context so we can check capabilities.
$context = get_context_instance(CONTEXT_COURSE, $COURSE->id);
//Calculate if we are in separate groups
$isseparategroups = $COURSE->groupmode == SEPARATEGROUPS && $COURSE->groupmodeforce && !has_capability('moodle/site:accessallgroups', $context);
//Get the user current group
$currentgroup = $isseparategroups ? get_and_set_current_group($COURSE, groupmode($COURSE)) : NULL;
$groupmembers = "";
$groupselect = "";
//Add this to the SQL to show only group users
if ($currentgroup !== NULL) {
$groupmembers = ', ' . groups_members_from_sql();
//TODO: ", {$CFG->prefix}groups_members gm ";
$groupselect = ' AND ' . groups_members_where_sql($currentgroup, 'u.id');
//" AND u.id = gm.userid AND gm.groupid = '$currentgroup'";
}
if ($COURSE->id == SITEID) {
// Site-level
$select = "SELECT u.id, u.username, u.firstname, u.lastname, u.picture, max(u.lastaccess) as lastaccess ";
$from = "FROM {$CFG->prefix}user u \n {$groupmembers} ";
$where = "WHERE u.lastaccess > {$timefrom}\n {$groupselect} ";
$order = "ORDER BY lastaccess DESC ";
} else {
// Course-level
$courseselect = "AND ul.courseid = '" . $COURSE->id . "'";
$select = "SELECT u.id, u.username, u.firstname, u.lastname, u.picture, max(ul.timeaccess) as lastaccess ";
$from = "FROM {$CFG->prefix}user_lastaccess ul,\n {$CFG->prefix}user u\n {$groupmembers} ";
$where = "WHERE ul.timeaccess > {$timefrom}\n AND u.id = ul.userid\n AND ul.courseid = {$COURSE->id}\n {$groupselect} ";
$order = "ORDER BY lastaccess DESC ";
}
$groupby = "GROUP BY u.id, u.username, u.firstname, u.lastname, u.picture ";
$SQL = $select . $from . $where . $groupby . $order;
$users = array();
$pcontext = get_related_contexts_string($context);
if ($pusers = get_records_sql($SQL, 0, 50)) {
// We'll just take the most recent 50 maximum
foreach ($pusers as $puser) {
// if current user can't view hidden role assignment in this context and
// user has a hidden role assigned at this context or any parent contexts,
// ignore this user
$SQL = "SELECT id FROM {$CFG->prefix}role_assignments\n WHERE userid = {$puser->id}\n AND contextid {$pcontext}\n AND hidden = 1";
if (!has_capability('moodle/role:viewhiddenassigns', $context) && record_exists_sql($SQL)) {
// can't see this user as the current user has no capability
// and this user has a hidden assignment at this context or higher
continue;
}
$puser->fullname = fullname($puser);
$users[$puser->id] = $puser;
}
}
//Calculate minutes
$minutes = floor($timetoshowusers / 60);
$this->content->text = "<div class=\"info\">(" . get_string("periodnminutes", "block_online_users", $minutes) . ")</div>";
//Now, we have in users, the list of users to show
//Because they are online
if (!empty($users)) {
//Accessibility: Don't want 'Alt' text for the user picture; DO want it for the envelope/message link (existing lang string).
//Accessibility: Converted <div> to <ul>, inherit existing classes & styles.
$this->content->text .= "<ul class='list'>\n";
foreach ($users as $user) {
$this->content->text .= '<li class="listentry">';
$timeago = format_time(time() - $user->lastaccess);
//bruno to calculate correctly on frontpage
if ($user->username == 'guest') {
$this->content->text .= '<div class="user">' . print_user_picture($user->id, $COURSE->id, $user->picture, 16, true, false, '', false);
$this->content->text .= get_string('guestuser') . '</div>';
} else {
$this->content->text .= '<div class="user"><a href="' . $CFG->wwwroot . '/user/view.php?id=' . $user->id . '&course=' . $COURSE->id . '" title="' . $timeago . '">';
$this->content->text .= print_user_picture($user->id, $COURSE->id, $user->picture, 16, true, false, '', false);
$this->content->text .= $user->fullname . '</a></div>';
}
if (!empty($USER->id) and $USER->id != $user->id and !empty($CFG->messaging) and !isguest() and $user->username != 'guest') {
// Only when logged in and messaging active etc
$this->content->text .= '<div class="message"><a title="' . get_string('messageselectadd') . '" href="' . $CFG->wwwroot . '/message/discussion.php?id=' . $user->id . '" onclick="this.target=\'message_' . $user->id . '\';return openpopup(\'/message/discussion.php?id=' . $user->id . '\', \'message_' . $user->id . '\', \'menubar=0,location=0,scrollbars,status,resizable,width=400,height=500\', 0);">' . '<img class="iconsmall" src="' . $CFG->pixpath . '/t/message.gif" alt="' . get_string('messageselectadd') . '" /></a></div>';
}
$this->content->text .= "</li>\n";
}
$this->content->text .= '</ul><div class="clearer"><!-- --></div>';
} else {
$this->content->text .= "<div class=\"info\">" . get_string("none") . "</div>";
}
return $this->content;
}
/**
* Returns list of user objects that are subscribed to this forum
*/
function forum_subscribed_users($course, $forum, $groupid = 0, $cache = false)
{
global $CFG;
static $resultscache = array();
if ($cache && isset($resultscache[$forum->id][$groupid])) {
return $resultscache[$forum->id][$groupid];
}
if ($groupid) {
$grouptables = ', ' . groups_members_from_sql();
$groupselect = 'AND' . groups_members_where_sql($groupid, 'u.id');
} else {
$grouptables = '';
$groupselect = '';
}
if (forum_is_forcesubscribed($forum)) {
$results = get_course_users($course->id);
// Otherwise get everyone in the course
} else {
$results = get_records_sql("SELECT u.id, u.username, u.firstname, u.lastname, u.maildisplay, u.mailformat, u.maildigest, u.emailstop,\n u.email, u.city, u.country, u.lastaccess, u.lastlogin, u.picture, u.timezone, u.theme, u.lang, u.trackforums\n FROM {$CFG->prefix}user u,\n {$CFG->prefix}forum_subscriptions s {$grouptables}\n WHERE s.forum = '{$forum->id}'\n AND s.userid = u.id\n AND u.deleted <> 1 {$groupselect}\n ORDER BY u.email ASC");
}
// Guest user should never be subscribed to a forum.
if ($guest = guest_user()) {
unset($results[$guest->id]);
}
if ($cache) {
$resultscache[$forum->id][$groupid] = $results;
}
return $results;
}
function survey_get_responses($surveyid, $groupid)
{
global $CFG;
if ($groupid) {
$groupsdb = ', ' . groups_members_from_sql();
$groupsql = 'AND' . groups_members_where_sql($groupid, 'u.id');
} else {
$groupsdb = "";
$groupsql = "";
}
return get_records_sql("SELECT u.id, u.firstname, u.lastname, u.picture, MAX(a.time) as time\n FROM {$CFG->prefix}survey_answers a,\n {$CFG->prefix}user u {$groupsdb}\n WHERE a.survey = {$surveyid}\n AND a.userid = u.id {$groupsql}\n GROUP BY u.id, u.firstname, u.lastname, u.picture\n ORDER BY time ASC");
}
/**
* Main filter function.
*/
function fetch_entries($postid = '', $fetchlimit = 10, $fetchstart = '', $filtertype = '', $filterselect = '', $tagid = '', $tag = '', $sort = 'lastmodified DESC', $limit = true)
{
global $CFG, $USER;
/// the post table will be used for other things too
$typesql = " AND p.module = 'blog' ";
/// set the tag id for searching
if ($tagid) {
$tag = $tagid;
} else {
if ($tag) {
if ($tagrec = get_record_sql('SELECT * FROM ' . $CFG->prefix . 'tags WHERE text LIKE "' . $tag . '"')) {
$tag = $tagrec->id;
} else {
$tag = -1;
//no records found
}
}
}
// If we have specified an ID
// Just return 1 entry
if ($postid) {
if ($post = get_record('post', 'id', $postid)) {
if (blog_user_can_view_user_post($post->userid, $post)) {
if ($user = get_record('user', 'id', $post->userid)) {
$post->email = $user->email;
$post->firstname = $user->firstname;
$post->lastname = $user->lastname;
}
$retarray[] = $post;
return $retarray;
} else {
return null;
}
} else {
// bad postid
return null;
}
}
if ($tag) {
$tagtablesql = $CFG->prefix . 'blog_tag_instance bt, ';
$tagquerysql = ' AND bt.entryid = p.id AND bt.tagid = ' . $tag . ' ';
} else {
$tagtablesql = '';
$tagquerysql = '';
}
if (isloggedin() && !has_capability('moodle/legacy:guest', get_context_instance(CONTEXT_SYSTEM, SITEID), $USER->id, false)) {
$permissionsql = 'AND (p.publishstate = \'site\' OR p.publishstate = \'public\' OR p.userid = ' . $USER->id . ')';
} else {
$permissionsql = 'AND p.publishstate = \'public\'';
}
// fix for MDL-9165, use with readuserblogs capability in a user context can read that user's private blogs
// admins can see all blogs regardless of publish states, as described on the help page
if (has_capability('moodle/user:readuserblogs', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
$permissionsql = '';
} else {
if ($filtertype == 'user' && has_capability('moodle/user:readuserblogs', get_context_instance(CONTEXT_USER, $filterselect))) {
$permissionsql = '';
}
}
/****************************************
* depending on the type, there are 4 *
* different possible sqls *
****************************************/
$requiredfields = 'p.*, u.firstname,u.lastname,u.email';
if ($filtertype == 'course' && $filterselect == SITEID) {
// Really a site
$filtertype = 'site';
}
switch ($filtertype) {
case 'site':
$SQL = 'SELECT ' . $requiredfields . ' FROM ' . $CFG->prefix . 'post p, ' . $tagtablesql . $CFG->prefix . 'user u
WHERE p.userid = u.id ' . $tagquerysql . '
AND u.deleted = 0
' . $permissionsql . $typesql;
break;
case 'course':
// all users with a role assigned
$context = get_context_instance(CONTEXT_COURSE, $filterselect);
// MDL-10037, hidden users' blogs should not appear
if (has_capability('moodle/role:viewhiddenassigns', $context)) {
$hiddensql = '';
} else {
$hiddensql = ' AND ra.hidden = 0 ';
}
$SQL = 'SELECT ' . $requiredfields . ' FROM ' . $CFG->prefix . 'post p, ' . $tagtablesql . $CFG->prefix . 'role_assignments ra, ' . $CFG->prefix . 'user u
WHERE p.userid = ra.userid ' . $tagquerysql . '
AND ra.contextid ' . get_related_contexts_string($context) . '
AND u.id = p.userid
AND u.deleted = 0
' . $hiddensql . $permissionsql . $typesql;
break;
case 'group':
$SQL = 'SELECT ' . $requiredfields . ' FROM ' . $CFG->prefix . 'post p, ' . $tagtablesql . groups_members_from_sql() . ', ' . $CFG->prefix . 'user u
WHERE ' . groups_members_where_sql($filterselect, 'p.userid') . '
AND u.id = p.userid
AND u.deleted = 0
' . $permissionsql . $typesql;
/*'SELECT '.$requiredfields.' FROM '.$CFG->prefix.'post p, '.$tagtablesql
.$CFG->prefix.'groups_members m, '.$CFG->prefix.'user u
WHERE p.userid = m.userid '.$tagquerysql.'
AND u.id = p.userid
AND m.groupid = '.$filterselect.'
AND u.deleted = 0
AND '.$permissionsql.$typesql;
'.$permissionsql;
*/
break;
case 'user':
$SQL = 'SELECT ' . $requiredfields . ' FROM ' . $CFG->prefix . 'post p, ' . $tagtablesql . $CFG->prefix . 'user u
WHERE p.userid = u.id ' . $tagquerysql . '
AND u.id = ' . $filterselect . '
AND u.deleted = 0
' . $permissionsql . $typesql;
break;
}
$limitfrom = 0;
$limitnum = 0;
if ($fetchstart !== '' && $limit) {
$limitfrom = $fetchstart;
$limitnum = $fetchlimit;
}
$orderby = ' ORDER BY ' . $sort . ' ';
//global $db; $db->debug = true;
$records = get_records_sql($SQL . $orderby, $limitfrom, $limitnum);
//$db->debug = false;
if (empty($records)) {
return array();
}
return $records;
}
function journal_count_entries($journal, $groupid = 0)
{
/// Counts all the journal entries (optionally in a given group)
global $CFG, $db;
if ($groupid) {
/// How many in a particular group?
return count_records_sql("SELECT COUNT(*) \n FROM {$CFG->prefix}journal_entries j,\n " . groups_members_from_sql() . "\n WHERE j.journal = {$journal->id} \n AND " . groups_members_where_sql($groupid, 'j.userid'));
} else {
/// Count all the entries from the whole course
$journals = get_records_sql("SELECT u.*\n FROM {$CFG->prefix}journal_entries j,\n {$CFG->prefix}user u \n WHERE j.userid = u.id\n AND j.journal = {$journal->id}\n ORDER BY j.modified DESC");
if (empty($journals)) {
return 0;
}
// remove unenrolled participants
foreach ($journals as $key => $user) {
if (!isteacher($journal->course, $user->id) and !isstudent($journal->course, $user->id)) {
unset($journals[$key]);
}
}
return count($journals);
}
}
/**
* Counts all real assignment submissions by ENROLLED students (not empty ones)
*
* There are also assignment type methods count_real_submissions() wich in the default
* implementation simply call this function.
* @param $groupid int optional If nonzero then count is restricted to this group
* @return int The number of submissions
*/
function assignment_count_real_submissions($assignment, $groupid = 0)
{
global $CFG;
if ($groupid) {
/// How many in a particular group?
return count_records_sql("SELECT COUNT(DISTINCT gm.userid, gm.groupid)\n FROM {$CFG->prefix}assignment_submissions a,\n " . groups_members_from_sql() . "\n WHERE a.assignment = {$assignment->id} \n AND a.timemodified > 0\n AND " . groups_members_where_sql($groupid, 'a.userid'));
} else {
$cm = get_coursemodule_from_instance('assignment', $assignment->id);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
// this is all the users with this capability set, in this context or higher
if ($users = get_users_by_capability($context, 'mod/assignment:submit', '', '', '', '', 0, '', false)) {
foreach ($users as $user) {
$array[] = $user->id;
}
$userlists = '(' . implode(',', $array) . ')';
return count_records_sql("SELECT COUNT(*)\n FROM {$CFG->prefix}assignment_submissions\n WHERE assignment = '{$assignment->id}' \n AND timemodified > 0\n AND userid IN {$userlists} ");
} else {
return 0;
// no users enroled in course
}
}
}
/**
* Search through course users
*
* If $coursid specifies the site course then this function searches
* through all undeleted and confirmed users
*
* @uses $CFG
* @uses SITEID
* @param int $courseid The course in question.
* @param int $groupid The group in question.
* @param string $searchtext ?
* @param string $sort ?
* @param string $exceptions ?
* @return object
*/
function search_users($courseid, $groupid, $searchtext, $sort = '', $exceptions = '')
{
global $CFG;
$LIKE = sql_ilike();
$fullname = sql_fullname('u.firstname', 'u.lastname');
if (!empty($exceptions)) {
$except = ' AND u.id NOT IN (' . $exceptions . ') ';
} else {
$except = '';
}
if (!empty($sort)) {
$order = ' ORDER BY ' . $sort;
} else {
$order = '';
}
$select = 'u.deleted = \'0\' AND u.confirmed = \'1\'';
if (!$courseid or $courseid == SITEID) {
return get_records_sql("SELECT u.id, u.firstname, u.lastname, u.email\n FROM {$CFG->prefix}user u\n WHERE {$select}\n AND ({$fullname} {$LIKE} '%{$searchtext}%' OR u.email {$LIKE} '%{$searchtext}%')\n {$except} {$order}");
} else {
if ($groupid) {
//TODO:check. Remove group DB dependencies.
return get_records_sql("SELECT u.id, u.firstname, u.lastname, u.email\n FROM {$CFG->prefix}user u,\n " . groups_members_from_sql() . "\n WHERE {$select} AND " . groups_members_where_sql($groupid, 'u.id') . "\n AND ({$fullname} {$LIKE} '%{$searchtext}%' OR u.email {$LIKE} '%{$searchtext}%')\n {$except} {$order}");
} else {
$context = get_context_instance(CONTEXT_COURSE, $courseid);
$contextlists = get_related_contexts_string($context);
$users = get_records_sql("SELECT u.id, u.firstname, u.lastname, u.email\n FROM {$CFG->prefix}user u,\n {$CFG->prefix}role_assignments ra\n WHERE {$select} AND ra.contextid {$contextlists} AND ra.userid = u.id\n AND ({$fullname} {$LIKE} '%{$searchtext}%' OR u.email {$LIKE} '%{$searchtext}%')\n {$except} {$order}");
}
return $users;
}
}
