/**
* returns array of all existing semester objects
* orderd by begin
* @param boolean $force_reload
* @return array
*/
public static function getAll($force_reload = false)
{
if (!is_array(self::$semester_cache) || $force_reload) {
self::$semester_cache = array();
foreach (self::findBySql('1 ORDER BY beginn') as $semester) {
self::$semester_cache[$semester->getId()] = $semester;
if ($semester->current) {
self::$current_semester = $semester;
}
}
}
return self::$semester_cache;
}