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index.php
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index.php
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<?PHP // $Id$
// Lists all the users within a given course
require_once('../config.php');
require_once($CFG->libdir.'/tablelib.php');
define('USER_SMALL_CLASS', 20); // Below this is considered small
define('USER_LARGE_CLASS', 200); // Above this is considered large
define('DEFAULT_PAGE_SIZE', 20);
define('SHOW_ALL_PAGE_SIZE', 5000);
$group = optional_param('group', -1, PARAM_INT); // Group to show
$page = optional_param('page', 0, PARAM_INT); // which page to show
$perpage = optional_param('perpage', DEFAULT_PAGE_SIZE, PARAM_INT); // how many per page
$mode = optional_param('mode', NULL); // '0' for less details, '1' for more
$showteachers = optional_param('teachers', 1, PARAM_INT); // do we want to see the teacher list?
$accesssince = optional_param('accesssince',0,PARAM_INT); // filter by last access. -1 = never
$search = optional_param('search','',PARAM_CLEAN);
$roleid = optional_param('roleid', 0, PARAM_INT); // optional roleid
$contextid = optional_param('contextid', PARAM_INT); // one of this or
$courseid = optional_param('id', PARAM_INT); // this are required
$showteachers = $showteachers && empty($search); // if we're searching, we just want students.
if ($contextid) {
if (! $context = get_context_instance_by_id($contextid)) {
error("Context ID is incorrect");
}
if (! $course = get_record('course', 'id', $context->instanceid)) {
error("Course ID is incorrect");
}
} else {
if (! $course = get_record('course', 'id', $courseid)) {
error("Course ID is incorrect");
}
if (! $context = get_context_instance(CONTEXT_COURSE, $course->id)) {
error("Context ID is incorrect");
}
}
require_login($course->id);
if ($roles = get_roles_used_in_context($context)) {
foreach ($roles as $role) {
$options[$role->id] = $role->name;
}
} else { // no roles yet
if (has_capability('moodle/user:assign', $context)) {
redirect($CFG->wwwroot.'/admin/roles/assign.php?contextid='.$context->id);
} else {
error ('no participants found for this course');
}
}
require_capability('moodle/course:viewparticipants', $context);
if (!$course->category) {
if (!$CFG->showsiteparticipantslist and !has_capability('moodle/course:viewparticipants', get_context_instance(CONTEXT_SYSTEM, SITEID))) {
print_header("$course->shortname: ".get_string('participants'), $course->fullname,
get_string('participants'), "", "", true, " ", navmenu($course));
notice(get_string('sitepartlist0'));
}
if ($CFG->showsiteparticipantslist < 2 and !isteacherinanycourse()) {
print_header("$course->shortname: ".get_string('participants'), $course->fullname,
get_string('participants'), "", "", true, " ", navmenu($course));
notice(get_string('sitepartlist1'));
}
}
add_to_log($course->id, 'user', 'view all', 'index.php?id='.$course->id, '');
$isteacher = isteacher($course->id);
if (empty($isteacher)) {
$search = false;
}
$countries = get_list_of_countries();
$strnever = get_string('never');
$datestring->day = get_string('day');
$datestring->days = get_string('days');
$datestring->hour = get_string('hour');
$datestring->hours = get_string('hours');
$datestring->min = get_string('min');
$datestring->mins = get_string('mins');
$datestring->sec = get_string('sec');
$datestring->secs = get_string('secs');
if ($mode !== NULL) {
$SESSION->userindexmode = $fullmode = ($mode == 1);
} else if (isset($SESSION->userindexmode)) {
$fullmode = $SESSION->userindexmode;
} else {
$fullmode = false;
}
/// Check to see if groups are being used in this forum
/// and if so, set $currentgroup to reflect the current group
$groupmode = groupmode($course); // Groups are being used
$currentgroup = get_and_set_current_group($course, $groupmode, $group);
if (!$currentgroup) { // To make some other functions work better later
$currentgroup = NULL;
}
$isseparategroups = ($course->groupmode == SEPARATEGROUPS and $course->groupmodeforce and
!has_capability('moodle/site:accessallgroups', get_context_instance(CONTEXT_COURSE, $course->id)));
if ($isseparategroups and (!$currentgroup) ) { //XXX
print_heading(get_string("notingroup", "forum"));
print_footer($course);
exit;
}
// Should use this variable so that we don't break stuff every time a variable is added or changed.
$baseurl = $CFG->wwwroot.'/user/index.php?contextid='.$context->id.'&roleid='.$roleid.'&id='.$course->id.'&group='.$currentgroup.'&perpage='.$perpage.'&teachers='.$showteachers.'&accesssince='.$accesssince.'&search='.$search;
/// Print headers
if ($course->category) {
print_header("$course->shortname: ".get_string('participants'), $course->fullname,
"<a href=\"../course/view.php?id=$course->id\">$course->shortname</a> -> ".
get_string('participants'), "", "", true, " ", navmenu($course));
} else {
print_header("$course->shortname: ".get_string('participants'), $course->fullname,
get_string('participants'), "", "", true, " ", navmenu($course));
}
//setting up tags
if ($course->id == SITEID) {
$filtertype = 'site';
} else if ($course->id && !$currentgroup) {
$filtertype = 'course';
$filterselect = $course->id;
} else {
$filtertype = 'group';
$filterselect = $currentgroup;
}
$currenttab = 'participants';
$user = $USER;
require_once($CFG->dirroot .'/user/tabs.php');
/// Get the hidden field list
if (has_capability('moodle/course:viewhiddenuserfields', get_context_instance(CONTEXT_COURSE, $course->id))) {
$hiddenfields = array(); // teachers and admins are allowed to see everything
} else {
$hiddenfields = array_flip(explode(',', $CFG->hiddenuserfields));
}
/// If there are multiple Roles in the course, then show a drop down menu for switching
if ($roles = get_roles_used_in_context($context)) {
$rolenames = array();
foreach ($roles as $role) {
$rolenames[$role->id] = $role->name;
}
if (empty($roleid)) {
$roleid = array_shift(array_keys($rolenames)); // get first element
}
echo '<form name="rolesform" action="index.php" method="get">';
echo '<div align="center">';
echo '<input type="hidden" name="contextid" value="'.$context->id.'">'.get_string('currentrole', 'role').': ';
choose_from_menu ($rolenames, 'roleid', $roleid, '', $script='rolesform.submit()');
echo '</div></form>';
}
/// Print settings and things in a table across the top
echo '<table class="controls" cellspacing="0"><tr>';
/// Print my course menus
if ($mycourses = get_my_courses($USER->id)) {
echo '<td class="left">';
print_string('mycourses');
echo ': ';
$courselist = array();
foreach ($mycourses as $mycourse) {
$courselist[$mycourse->id] = $mycourse->shortname;
}
popup_form($CFG->wwwroot.'/user/index.php?contextid='.$context->id.'&roleid='.$roleid.'&id=',
$courselist, 'courseform',$course->id);
echo '</td>';
}
if ($groupmode == VISIBLEGROUPS or ($groupmode and has_capability('moodle/site:accessallgroups', get_context_instance(CONTEXT_COURSE, $course->id)))) {
if ($groups = get_records_menu("groups", "courseid", $course->id, "name ASC", "id,name")) {
echo '<td class="left">';
print_group_menu($groups, $groupmode, $currentgroup, $baseurl);
echo '</td>';
}
}
if (!empty($isteacher)) {
// get minimum lastaccess for this course and display a dropbox to filter by lastaccess going back this far.
// this might not work anymore because you always going to get yourself as the most recent entry? added $USER!=$user ch
$minlastaccess = get_field_sql('SELECT min(timeaccess) FROM '.$CFG->prefix.'user_lastaccess WHERE courseid = '.$course->id.' AND timeaccess != 0 AND userid!='.$USER->id);
$lastaccess0exists = record_exists('user_lastaccess','courseid',$course->id,'timeaccess',0);
$now = usergetmidnight(time());
$timeaccess = array();
// makes sense for this to go first.
$timeoptions[0] = get_string('selectperiod');
// days
for ($i = 1; $i < 7; $i++) {
if (strtotime('-'.$i.' days',$now) >= $minlastaccess) {
$timeoptions[strtotime('-'.$i.' days',$now)] = get_string('numdays','moodle',$i);
}
}
// weeks
for ($i = 1; $i < 10; $i++) {
if (strtotime('-'.$i.' weeks',$now) >= $minlastaccess) {
$timeoptions[strtotime('-'.$i.' weeks',$now)] = get_string('numweeks','moodle',$i);
}
}
// months
for ($i = 2; $i < 12; $i++) {
if (strtotime('-'.$i.' months',$now) >= $minlastaccess) {
$timeoptions[strtotime('-'.$i.' months',$now)] = get_string('nummonths','moodle',$i);
}
}
// try a year
if (strtotime('-1 year',$now) >= $minlastaccess) {
$timeoptions[strtotime('-1 year',$now)] = get_string('lastyear');
}
if (!empty($lastaccess0exists)) {
$timeoptions[-1] = get_string('never');
}
if (count($timeoptions) > 1) {
echo '<td class="left">';
echo get_string('usersnoaccesssince').': ';
$baseurl = preg_replace('/&accesssince='.$accesssince.'/','',$baseurl);
echo popup_form($baseurl.'&accesssince=',$timeoptions,'timeoptions',$accesssince,'','','',true);
echo '</td>';
}
}
echo '<td class="right">';
echo get_string('userlist').': ';
$formatmenu = array( '0' => get_string('detailedless'),
'1' => get_string('detailedmore'));
echo popup_form($baseurl.'&mode=', $formatmenu, 'formatmenu', $fullmode, '', '', '', true);
echo '</td></tr></table>';
if ($currentgroup and (!$isseparategroups or has_capability('moodle/site:accessallgroups', get_context_instance(CONTEXT_COURSE, $course->id)))) { /// Display info about the group
if ($group = get_record('groups', 'id', $currentgroup)) {
if (!empty($group->description) or (!empty($group->picture) and empty($group->hidepicture))) {
echo '<table class="groupinfobox"><tr><td class="left side picture">';
print_group_picture($group, $course->id, true, false, false);
echo '</td><td class="content">';
echo '<h3>'.$group->name;
if (has_capability('moodle/course:managegroups', get_context_instance(CONTEXT_COURSE, $course->id))) {
echo ' <a title="'.get_string('editgroupprofile').'" href="../course/groups.php?id='.$course->id.'&group='.$group->id.'">';
echo '<img src="'.$CFG->pixpath.'/t/edit.gif" alt="" border="0">';
echo '</a>';
}
echo '</h3>';
echo format_text($group->description);
echo '</td></tr></table>';
}
}
}
$exceptions = array(); // This will be an array of userids that are shown as teachers and thus
// do not have to be shown as users as well. Only relevant on site course.
if ($isteacher) {
echo '
<script Language="JavaScript">
<!--
function checksubmit(form) {
var destination = form.formaction.options[form.formaction.selectedIndex].value;
if (destination == "" || !checkchecked(form)) {
form.formaction.selectedIndex = 0;
return false;
} else {
return true;
}
}
function checkchecked(form) {
var inputs = document.getElementsByTagName(\'INPUT\');
var checked = false;
inputs = filterByParent(inputs, function() {return form;});
for(var i = 0; i < inputs.length; ++i) {
if(inputs[i].type == \'checkbox\' && inputs[i].checked) {
checked = true;
}
}
return checked;
}
//-->
</script>
';
echo '<form action="action_redir.php" method="post" name="studentsform" onSubmit="return checksubmit(this);">';
echo '<input type="hidden" name="returnto" value="'.$_SERVER['REQUEST_URI'].'" />';
echo '<input type="hidden" name="sesskey" value="'.$USER->sesskey.'" />';
}
$guest = get_guest();
$exceptions[] = $guest->id;
/// Define a table showing a list of users in the current role.
$tablecolumns = array('picture', 'fullname');
$tableheaders = array('', get_string('fullname'));
if (!isset($hiddenfields['city'])) {
$tablecolumns[] = 'city';
$tableheaders[] = get_string('city');
}
if (!isset($hiddenfields['country'])) {
$tablecolumns[] = 'country';
$tableheaders[] = get_string('country');
}
if (!isset($hiddenfields['lastaccess'])) {
$tablecolumns[] = 'lastaccess';
$tableheaders[] = get_string('lastaccess');
}
if ($course->enrolperiod) {
$tablecolumns[] = 'timeend';
$tableheaders[] = get_string('enrolmentend');
}
if ($isteacher) {
$tablecolumns[] = '';
$tableheaders[] = get_string('select');
}
$table = new flexible_table('user-index-students-'.$course->id);
$table->define_columns($tablecolumns);
$table->define_headers($tableheaders);
$table->define_baseurl($baseurl);
$table->sortable(true, 'lastaccess', SORT_DESC);
$table->set_attribute('cellspacing', '0');
$table->set_attribute('id', 'students');
$table->set_attribute('class', 'generaltable generalbox');
$table->set_control_variables(array(
TABLE_VAR_SORT => 'ssort',
TABLE_VAR_HIDE => 'shide',
TABLE_VAR_SHOW => 'sshow',
TABLE_VAR_IFIRST => 'sifirst',
TABLE_VAR_ILAST => 'silast',
TABLE_VAR_PAGE => 'spage'
));
$table->setup();
if ($roleid) {
// we are looking for all users with this role assigned in this context or higher
if ($usercontexts = get_parent_contexts($context)) {
$listofcontexts = '('.implode(',', $usercontexts).')';
} else {
$sitecontext = get_context_instance(CONTEXT_SYSTEM, SITEID);
$listofcontexts = '('.$sitecontext->id.')'; // must be site
}
$select = 'SELECT u.id, u.username, u.firstname, u.lastname, u.email, u.city, u.country,
u.picture, u.lang, u.timezone, u.emailstop, u.maildisplay, ul.timeaccess AS lastaccess '; // s.lastaccess
//$select .= $course->enrolperiod?', s.timeend ':'';
$from = "FROM {$CFG->prefix}user u INNER JOIN
{$CFG->prefix}role_assignments r on u.id=r.userid LEFT OUTER JOIN
{$CFG->prefix}user_lastaccess ul on r.userid=ul.userid ";
$where = "WHERE (r.contextid = $context->id OR r.contextid in $listofcontexts)
AND u.deleted = 0
AND r.roleid = $roleid
AND (ul.courseid = $course->id OR ul.courseid IS NULL)";
$where .= get_lastaccess_sql($accesssince);
$wheresearch = '';
if (!empty($search)) {
$LIKE = sql_ilike();
$fullname = sql_fullname('u.firstname','u.lastname');
$wheresearch .= ' AND ('. $fullname .' '. $LIKE .'\'%'. $search .'%\' OR email '. $LIKE .'\'%'. $search .'%\' OR idnumber '.$LIKE.' \'%'.$search.'%\') ';
}
if ($currentgroup) { // Displaying a group by choice
// FIX: TODO: This will not work if $currentgroup == 0, i.e. "those not in a group"
$from .= 'LEFT JOIN '.$CFG->prefix.'groups_members gm ON u.id = gm.userid ';
$where .= ' AND gm.groupid = '.$currentgroup;
}
if ($course->id == SITEID) {
$where .= ' AND u.id NOT IN ('.implode(',', $exceptions).')';
}
$totalcount = count_records_sql('SELECT COUNT(distinct u.id) '.$from.$where); // 1 person can have multiple assignments
if ($table->get_sql_where()) {
$where .= ' AND '.$table->get_sql_where();
}
if ($table->get_sql_sort()) {
$sort = ' ORDER BY '.$table->get_sql_sort();
} else {
$sort = '';
}
$matchcount = count_records_sql('SELECT COUNT(*) '.$from.$where.$wheresearch);
$table->initialbars($totalcount > $perpage);
$table->pagesize($perpage, $matchcount);
if ($table->get_page_start() !== '' && $table->get_page_size() !== '') {
$limit = ' '.sql_paging_limit($table->get_page_start(), $table->get_page_size());
} else {
$limit = '';
}
$students = get_records_sql($select.$from.$where.$wheresearch.$sort.$limit);
if (!$currentrole = get_record('role','id',$roleid)) {
error('That role does not exist');
}
$a->count = $totalcount;
$a->items = $currentrole->name;
echo '<h2>'.get_string('counteditems', '', $a);
if (user_can_assign($context, $roleid)) {
echo ' <a href="'.$CFG->wwwroot.'/admin/roles/assign.php?roleid='.$roleid.'&contextid='.$context->id.'">';
echo '<img src="'.$CFG->pixpath.'/i/edit.gif" height="16" width="16" alt="" /></a>';
}
echo '</h2>';
if ($CFG->longtimenosee > 0 && $CFG->longtimenosee < 1000 && $totalcount > 0) {
echo '<p id="longtimenosee">('.get_string('unusedaccounts', '', $CFG->longtimenosee).')</p>';
}
if ($fullmode) { // Print simple listing
if ($totalcount < 1) {
print_heading(get_string("nostudentsfound", "", $course->students));
}
else {
if($totalcount > $perpage) {
$firstinitial = $table->get_initial_first();
$lastinitial = $table->get_initial_last();
$strall = get_string('all');
$alpha = explode(',', get_string('alphabet'));
// Bar of first initials
echo '<div class="initialbar firstinitial">'.get_string('firstname').' : ';
if(!empty($firstinitial)) {
echo '<a href="'.$baseurl.'&sifirst=">'.$strall.'</a>';
} else {
echo '<strong>'.$strall.'</strong>';
}
foreach ($alpha as $letter) {
if ($letter == $firstinitial) {
echo ' <strong>'.$letter.'</strong>';
} else {
echo ' <a href="'.$baseurl.'&sifirst='.$letter.'">'.$letter.'</a>';
}
}
echo '</div>';
// Bar of last initials
echo '<div class="initialbar lastinitial">'.get_string('lastname').' : ';
if(!empty($lastinitial)) {
echo '<a href="'.$baseurl.'&silast=">'.$strall.'</a>';
} else {
echo '<strong>'.$strall.'</strong>';
}
foreach ($alpha as $letter) {
if ($letter == $lastinitial) {
echo ' <strong>'.$letter.'</strong>';
} else {
echo ' <a href="'.$baseurl.'&silast='.$letter.'">'.$letter.'</a>';
}
}
echo '</div>';
print_paging_bar($matchcount, intval($table->get_page_start() / $perpage), $perpage, $baseurl.'&', 'spage');
}
if($matchcount > 0) {
foreach ($students as $student) {
print_user($student, $course, true);
}
}
else {
print_heading(get_string('nothingtodisplay'));
}
}
}
else {
$countrysort = (strpos($sort, 'country') !== false);
$timeformat = get_string('strftimedate');
if (!empty($students)) {
foreach ($students as $student) {
if ($student->lastaccess) {
$lastaccess = format_time(time() - $student->lastaccess, $datestring);
} else {
$lastaccess = $strnever;
}
if (empty($student->country)) {
$country = '';
}
else {
if($countrysort) {
$country = '('.$student->country.') '.$countries[$student->country];
}
else {
$country = $countries[$student->country];
}
}
$data = array (
print_user_picture($student->id, $course->id, $student->picture, false, true),
'<strong><a href="'.$CFG->wwwroot.'/user/view.php?id='.$student->id.'&course='.$course->id.'">'.fullname($student).'</a></strong>');
if (!isset($hiddenfields['city'])) {
$data[] = $student->city;
}
if (!isset($hiddenfields['country'])) {
$data[] = $country;
}
if (!isset($hiddenfields['lastaccess'])) {
$data[] = $lastaccess;
}
if ($course->enrolperiod) {
if ($student->timeend) {
$data[] = userdate($student->timeend, $timeformat);
} else {
$data[] = get_string('unlimited');
}
}
if ($isteacher) {
$data[] = '<input type="checkbox" name="user'.$student->id.'" />';
}
$table->add_data($data);
}
}
$table->print_html();
}
if ($isteacher) {
echo '<br /><center>';
echo '<input type="button" onclick="checkall()" value="'.get_string('selectall').'" /> ';
echo '<input type="button" onclick="checknone()" value="'.get_string('deselectall').'" /> ';
$displaylist['messageselect.php'] = get_string('messageselectadd');
if ($course->enrolperiod) {
$displaylist['extendenrol.php'] = get_string('extendenrol');
}
choose_from_menu ($displaylist, "formaction", "", get_string("withselectedusers"), "if(checksubmit(this.form))this.form.submit();", "");
helpbutton("participantswithselectedusers", get_string("withselectedusers"));
echo '<input type="submit" value="' . get_string('ok') . '"';
echo '</center></form>';
}
if ($isteacher && $totalcount > ($perpage*3)) {
echo '<form action="index.php"><p align="center"><input type="hidden" name="id" value="'.$course->id.'" />'.get_string('search').': '."\n";
echo '<input type="text" name="search" value="'.$search.'" /> <input type="submit" value="'.get_string('search').'" /></p></form>'."\n";
}
if ($perpage == SHOW_ALL_PAGE_SIZE) {
echo '<div id="showall"><a href="'.$baseurl.'&perpage='.DEFAULT_PAGE_SIZE.'">'.get_string('showperpage', '', DEFAULT_PAGE_SIZE).'</a></div>';
}
else if ($matchcount > 0 && $perpage < $matchcount) {
echo '<div id="showall"><a href="'.$baseurl.'&perpage='.SHOW_ALL_PAGE_SIZE.'">'.get_string('showall', '', $matchcount).'</a></div>';
}
} // end of if ($roleid);
print_footer($course);
function get_lastaccess_sql($accesssince='') {
if (empty($accesssince)) {
return '';
}
if ($accesssince == -1) { // never
return ' AND ul.timeaccess = 0';
} else {
return ' AND ul.timeaccess != 0 AND timeaccess < '.$accesssince;
}
}
?>