function _isMember($a_user_id, $a_ref_id, $a_field = '')
{
global $rbacreview, $ilObjDataCache, $ilDB;
$rolf = $rbacreview->getRoleFolderOfObject($a_ref_id);
$local_roles = $rbacreview->getRolesOfRoleFolder($rolf["ref_id"], false);
$user_roles = $rbacreview->assignedRoles($a_user_id);
// Used for membership limitations -> check membership by given field
if ($a_field) {
include_once './Services/User/classes/class.ilObjUser.php';
$tmp_user =& ilObjectFactory::getInstanceByObjId($a_user_id);
switch ($a_field) {
case 'login':
$and = "AND login = '******' ";
break;
case 'email':
$and = "AND email = '" . $tmp_user->getEmail() . "' ";
break;
case 'matriculation':
$and = "AND matriculation = '" . $tmp_user->getMatriculation() . "' ";
break;
default:
$and = "AND usr_id = '" . $a_user_id . "'";
break;
}
if (!($members = ilObjGroup::_getMembers($ilObjDataCache->lookupObjId($a_ref_id)))) {
return false;
}
$query = "SELECT * FROM usr_data as ud " . "WHERE usr_id IN (" . implode(",", ilUtil::quoteArray($members)) . ") " . $and;
$res = $ilDB->query($query);
return $res->numRows() ? true : false;
}
if (!array_intersect($local_roles, $user_roles)) {
return false;
}
return true;
}
/**
* Get members for object
* @param int $a_obj_id
* @return array
*/
protected static function getMembers($a_obj_id)
{
global $ilObjDataCache;
switch ($ilObjDataCache->lookupType($a_obj_id)) {
case 'crs':
include_once 'Modules/Course/classes/class.ilCourseParticipants.php';
$member_obj = ilCourseParticipants::_getInstanceByObjId($a_obj_id);
return $member_obj->getMembers();
case 'grp':
include_once './Modules/Group/classes/class.ilObjGroup.php';
return ilObjGroup::_getMembers($a_obj_id);
}
return array();
}
