public function add_student(scheduler_appointment $appointmentmodel, $highlight, $checked = false, $showgrade = true)
{
$student = new stdClass();
$student->user = $appointmentmodel->get_student();
if ($this->showgrades && $showgrade) {
$student->grade = $appointmentmodel->grade;
} else {
$student->grade = null;
}
$student->highlight = $highlight;
$student->checked = $checked;
$student->entryid = $appointmentmodel->id;
$this->students[] = $student;
}
