function get_content()
{
global $USER, $CFG, $DB, $OUTPUT, $PAGE;
if ($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;
}
$now = time();
//Calculate if we are in separate groups
$isseparategroups = $this->page->course->groupmode == SEPARATEGROUPS && $this->page->course->groupmodeforce && !has_capability('moodle/site:accessallgroups', $this->page->context);
//Get the user current group
$currentgroup = $isseparategroups ? groups_get_course_group($this->page->course) : NULL;
$sitelevel = $this->page->course->id == SITEID || $this->page->context->contextlevel < CONTEXT_COURSE;
$onlineusers = new fetcher($currentgroup, $now, $timetoshowusers, $this->page->context, $sitelevel, $this->page->course->id);
//Calculate minutes
$minutes = floor($timetoshowusers / 60);
// Verify if we can see the list of users, if not just print number of users
if (!has_capability('block/online_users:viewlist', $this->page->context)) {
if (!($usercount = $onlineusers->count_users())) {
$usercount = get_string("none");
}
$this->content->text = "<div class=\"info\">" . get_string("periodnminutes", "block_online_users", $minutes) . ": {$usercount}</div>";
return $this->content;
}
$userlimit = 50;
// We'll just take the most recent 50 maximum.
if ($users = $onlineusers->get_users($userlimit)) {
foreach ($users as $user) {
$users[$user->id]->fullname = fullname($user);
}
} else {
$users = array();
}
if (count($users) < $userlimit) {
$usercount = "";
} else {
$usercount = $onlineusers->count_users();
$usercount = ": {$usercount}";
}
$this->content->text = "<div class=\"info\">(" . get_string("periodnminutes", "block_online_users", $minutes) . "{$usercount})</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";
if (isloggedin() && has_capability('moodle/site:sendmessage', $this->page->context) && !empty($CFG->messaging) && !isguestuser()) {
$canshowicon = true;
message_messenger_requirejs();
} else {
$canshowicon = false;
}
foreach ($users as $user) {
$this->content->text .= '<li class="listentry">';
$timeago = format_time($now - $user->lastaccess);
//bruno to calculate correctly on frontpage
if (isguestuser($user)) {
$this->content->text .= '<div class="user">' . $OUTPUT->user_picture($user, array('size' => 16, 'alttext' => false));
$this->content->text .= get_string('guestuser') . '</div>';
} else {
$this->content->text .= '<div class="user">';
$this->content->text .= '<a href="' . $CFG->wwwroot . '/user/view.php?id=' . $user->id . '&course=' . $this->page->course->id . '" title="' . $timeago . '">';
$this->content->text .= $OUTPUT->user_picture($user, array('size' => 16, 'alttext' => false, 'link' => false)) . $user->fullname . '</a></div>';
}
if ($canshowicon and $USER->id != $user->id and !isguestuser($user)) {
// Only when logged in and messaging active etc
$anchortagcontents = '<img class="iconsmall" src="' . $OUTPUT->pix_url('t/message') . '" alt="' . get_string('messageselectadd') . '" />';
$anchorurl = new moodle_url('/message/index.php', array('id' => $user->id));
$anchortag = html_writer::link($anchorurl, $anchortagcontents, array_merge(message_messenger_sendmessage_link_params($user), array('title' => get_string('messageselectadd'))));
$this->content->text .= '<div class="message">' . $anchortag . '</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;
}
function get_content()
{
global $USER, $CFG, $DB, $OUTPUT, $PAGE;
if ($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;
}
$now = time();
$timefrom = 100 * floor(($now - $timetoshowusers) / 100);
// Round to nearest 100 seconds for better query cache
//Calculate if we are in separate groups
$isseparategroups = $this->page->course->groupmode == SEPARATEGROUPS && $this->page->course->groupmodeforce && !has_capability('moodle/site:accessallgroups', $this->page->context);
//Get the user current group
$currentgroup = $isseparategroups ? groups_get_course_group($this->page->course) : NULL;
$groupmembers = "";
$groupselect = "";
$params = array();
//Add this to the SQL to show only group users
if ($currentgroup !== NULL) {
$groupmembers = ", {groups_members} gm";
$groupselect = "AND u.id = gm.userid AND gm.groupid = :currentgroup";
$params['currentgroup'] = $currentgroup;
}
$userfields = user_picture::fields('u', array('username'));
$params['now'] = $now;
$params['timefrom'] = $timefrom;
if ($this->page->course->id == SITEID or $this->page->context->contextlevel < CONTEXT_COURSE) {
// Site-level
$sql = "SELECT {$userfields}, MAX(u.lastaccess) AS lastaccess\n FROM {user} u {$groupmembers}\n WHERE u.lastaccess > :timefrom\n AND u.lastaccess <= :now\n AND u.deleted = 0\n {$groupselect}\n GROUP BY {$userfields}\n ORDER BY lastaccess DESC ";
$csql = "SELECT COUNT(u.id)\n FROM {user} u {$groupmembers}\n WHERE u.lastaccess > :timefrom\n AND u.lastaccess <= :now\n AND u.deleted = 0\n {$groupselect}";
} else {
// Course level - show only enrolled users for now
// TODO: add a new capability for viewing of all users (guests+enrolled+viewing)
list($esqljoin, $eparams) = get_enrolled_sql($this->page->context);
$params = array_merge($params, $eparams);
$sql = "SELECT {$userfields}, MAX(ul.timeaccess) AS lastaccess\n FROM {user_lastaccess} ul {$groupmembers}, {user} u\n JOIN ({$esqljoin}) euj ON euj.id = u.id\n WHERE ul.timeaccess > :timefrom\n AND u.id = ul.userid\n AND ul.courseid = :courseid\n AND ul.timeaccess <= :now\n AND u.deleted = 0\n {$groupselect}\n GROUP BY {$userfields}\n ORDER BY lastaccess DESC";
$csql = "SELECT COUNT(u.id)\n FROM {user_lastaccess} ul {$groupmembers}, {user} u\n JOIN ({$esqljoin}) euj ON euj.id = u.id\n WHERE ul.timeaccess > :timefrom\n AND u.id = ul.userid\n AND ul.courseid = :courseid\n AND ul.timeaccess <= :now\n AND u.deleted = 0\n {$groupselect}";
$params['courseid'] = $this->page->course->id;
}
//Calculate minutes
$minutes = floor($timetoshowusers / 60);
// Verify if we can see the list of users, if not just print number of users
if (!has_capability('block/online_users:viewlist', $this->page->context)) {
if (!($usercount = $DB->count_records_sql($csql, $params))) {
$usercount = get_string("none");
}
$this->content->text = "<div class=\"info\">" . get_string("periodnminutes", "block_online_users", $minutes) . ": {$usercount}</div>";
return $this->content;
}
if ($users = $DB->get_records_sql($sql, $params, 0, 50)) {
// We'll just take the most recent 50 maximum
foreach ($users as $user) {
$users[$user->id]->fullname = fullname($user);
}
} else {
$users = array();
}
if (count($users) < 50) {
$usercount = "";
} else {
$usercount = $DB->count_records_sql($csql, $params);
$usercount = ": {$usercount}";
}
$this->content->text = "<div class=\"info\">(" . get_string("periodnminutes", "block_online_users", $minutes) . "{$usercount})</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";
if (isloggedin() && has_capability('moodle/site:sendmessage', $this->page->context) && !empty($CFG->messaging) && !isguestuser()) {
$canshowicon = true;
message_messenger_requirejs();
} else {
$canshowicon = false;
}
foreach ($users as $user) {
$this->content->text .= '<li class="listentry">';
$timeago = format_time($now - $user->lastaccess);
//bruno to calculate correctly on frontpage
if (isguestuser($user)) {
$this->content->text .= '<div class="user">' . $OUTPUT->user_picture($user, array('size' => 16, 'alttext' => false));
$this->content->text .= get_string('guestuser') . '</div>';
} else {
$this->content->text .= '<div class="user">';
$this->content->text .= '<a href="' . $CFG->wwwroot . '/user/view.php?id=' . $user->id . '&course=' . $this->page->course->id . '" title="' . $timeago . '">';
$this->content->text .= $OUTPUT->user_picture($user, array('size' => 16, 'alttext' => false, 'link' => false)) . $user->fullname . '</a></div>';
}
if ($canshowicon and $USER->id != $user->id and !isguestuser($user)) {
// Only when logged in and messaging active etc
$anchortagcontents = '<img class="iconsmall" src="' . $OUTPUT->pix_url('t/message') . '" alt="' . get_string('messageselectadd') . '" />';
$anchorurl = new moodle_url('/message/index.php', array('id' => $user->id));
$anchortag = html_writer::link($anchorurl, $anchortagcontents, array_merge(message_messenger_sendmessage_link_params($user), array('title' => get_string('messageselectadd'))));
$this->content->text .= '<div class="message">' . $anchortag . '</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 the header bar.
*
* @since Moodle 2.9
* @param array $headerinfo An array of header information, dependant on what type of header is being displayed. The following
* array example is user specific.
* heading => Override the page heading.
* user => User object.
* usercontext => user context.
* @param int $headinglevel What level the 'h' tag will be.
* @return string HTML for the header bar.
*/
public function context_header($headerinfo = null, $headinglevel = 1) {
global $DB, $USER, $CFG;
$context = $this->page->context;
// Make sure to use the heading if it has been set.
if (isset($headerinfo['heading'])) {
$heading = $headerinfo['heading'];
} else {
$heading = null;
}
$imagedata = null;
$subheader = null;
$userbuttons = null;
// The user context currently has images and buttons. Other contexts may follow.
if (isset($headerinfo['user']) || $context->contextlevel == CONTEXT_USER) {
if (isset($headerinfo['user'])) {
$user = $headerinfo['user'];
} else {
// Look up the user information if it is not supplied.
$user = $DB->get_record('user', array('id' => $context->instanceid));
}
// If the user context is set, then use that for capability checks.
if (isset($headerinfo['usercontext'])) {
$context = $headerinfo['usercontext'];
}
// Use the user's full name if the heading isn't set.
if (!isset($heading)) {
$heading = fullname($user);
}
$imagedata = $this->user_picture($user, array('size' => 100));
// Check to see if we should be displaying a message button.
if (!empty($CFG->messaging) && $USER->id != $user->id && has_capability('moodle/site:sendmessage', $context)) {
$userbuttons = array(
'messages' => array(
'buttontype' => 'message',
'title' => get_string('message', 'message'),
'url' => new moodle_url('/message/index.php', array('id' => $user->id)),
'image' => 'message',
'linkattributes' => message_messenger_sendmessage_link_params($user),
'page' => $this->page
)
);
$this->page->requires->string_for_js('changesmadereallygoaway', 'moodle');
}
}
$contextheader = new context_header($heading, $headinglevel, $imagedata, $userbuttons);
return $this->render_context_header($contextheader);
}
} else {
$ipstring = get_string("none");
}
echo html_writer::tag('dt', get_string('lastip'));
echo html_writer::tag('dd', $ipstring);
}
echo html_writer::end_tag('dl');
echo "</div></div>";
// Closing desriptionbox and userprofilebox.
// Print messaging link if allowed.
if ($cansendmessage) {
echo '<div class="messagebox">';
$sendmessageurl = new moodle_url('/message/index.php', array('id' => $user->id));
if ($courseid) {
$sendmessageurl->param('viewing', MESSAGE_VIEW_COURSE . $courseid);
}
echo html_writer::link($sendmessageurl, get_string('messageselectadd'), message_messenger_sendmessage_link_params($user));
echo '</div>';
}
if (empty($CFG->forceloginforprofiles) || $currentuser || has_capability('moodle/user:viewdetails', $usercontext) || has_coursecontact_role($id)) {
echo '<div class="fullprofilelink">';
echo html_writer::link($CFG->wwwroot . '/user/profile.php?id=' . $id, get_string('fullprofile'));
echo '</div>';
}
// TODO Add more useful overview info for teachers here, see below.
// Show links to notes made about this student (must click to display, for privacy).
// Recent comments made in this course.
// Recent blogs associated with this course and items in it.
echo '</div>';
// Userprofile class.
echo $OUTPUT->footer();
