function get_content()
{
global $USER, $CFG, $DB, $OUTPUT;
if ($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();
}
$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;
} 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('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;
}
/**
* Check logged in at the site level (should be 12).
*
* @param int $now Current Unix timestamp
* @param int $timetoshowusers The time window (in seconds) to check for the latest logged in users
*/
public function test_fetcher_sitelevel()
{
global $CFG;
$currentgroup = null;
$now = time();
$timetoshowusers = $CFG->block_online_users_timetosee * 60;
$context = context_system::instance();
$onlineusers = new fetcher($currentgroup, $now, $timetoshowusers, $context, true);
$usercount = $onlineusers->count_users();
$users = $onlineusers->get_users();
$this->assertEquals($usercount, count($users), 'There was a problem counting the number of online users at site level');
$this->assertEquals(12, $usercount, 'There was a problem counting the number of online users at site level');
}