PHP attforblock::get_today_sessions示例

$from = optional_param('from', NULL, PARAM_ACTION);
$pageparams->view = optional_param('view', NULL, PARAM_INT);
$pageparams->curdate = optional_param('curdate', NULL, PARAM_INT);
$pageparams->collapsetype = optional_param('collapsetype', NULL, PARAM_INT);
$cm = get_coursemodule_from_id('attforblock', $id, 0, false, MUST_EXIST);
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
$att = $DB->get_record('attforblock', array('id' => $cm->instance), '*', MUST_EXIST);
require_login($course, true, $cm);
$pageparams->init($cm);
$att = new attforblock($att, $cm, $course, $PAGE->context, $pageparams);
if (!$att->perm->can_manage() && !$att->perm->can_take() && !$att->perm->can_change()) {
    redirect($att->url_view());
}
// if teacher is coming from block, then check for a session exists for today
if ($from === 'block') {
    $sessions = $att->get_today_sessions();
    $size = count($sessions);
    if ($size == 1) {
        $sess = reset($sessions);
        $nottaken = !$sess->lasttaken && has_capability('mod/attforblock:takeattendances', $PAGE->context);
        $canchange = $sess->lasttaken && has_capability('mod/attforblock:changeattendances', $PAGE->context);
        if ($nottaken || $canchange) {
            redirect($att->url_take(array('sessionid' => $sess->id, 'grouptype' => $sess->groupid)));
        }
    } elseif ($size > 1) {
        $att->curdate = $today;
        //temporally set $view for single access to page from block
        $att->{$view} = ATT_VIEW_DAYS;
    }
}
$PAGE->set_url($att->url_manage());