/**
* Checks if given user is the responsible lecturer or is member of a
* related group
*
* @global object $perm The globa perm object.
* @param CourseEvent $event The course event to check against.
* @param string $user_id The id of the user.
* @return boolean
*/
protected static function checkRelated(CourseEvent $event, $user_id)
{
global $perm;
$check_related = false;
$permission = $perm->get_studip_perm($event->range_id, $user_id);
switch ($permission) {
case 'dozent':
$related_persons = $event->dozenten->pluck(user_id);
if (sizeof($related_persons)) {
if (in_array($user_id, $related_persons)) {
$check_related = true;
}
} else {
$check_related = true;
}
break;
case 'tutor':
$check_related = true;
break;
default:
$group_ids = $event->statusgruppen->pluck('statusgruppe_id');
if (sizeof($group_ids)) {
$member = StatusgruppeUser::findBySQL('statusgruppe_id IN(?) AND user_id = ?', array($group_ids, $user_id));
$check_related = sizeof($member) > 0;
} else {
$check_related = true;
}
}
return $check_related;
}
/**
* Retrieves all contact groups (statusgruppen) owned by the given user
* where at least one member has granted access to his calender for the user.
*
* @param string $user_id User id of the owner.
* @return type
*/
public static function getGroups($user_id)
{
$groups = array();
$calendar_owners = CalendarUser::getOwners($user_id)->pluck('owner_id');
$sg_groups = SimpleORMapCollection::createFromArray(Statusgruppen::findByRange_id($user_id))->orderBy('position')->pluck('statusgruppe_id');
if (sizeof($calendar_owners)) {
$sg_users = StatusgruppeUser::findBySQL('statusgruppe_id IN(?) AND user_id IN(?)', array($sg_groups, $calendar_owners));
foreach ($sg_users as $sg_user) {
$groups[$sg_user->group->id] = $sg_user->group;
}
}
return $groups;
}
