/**
 * This function load's all user groups
 *
 **/
 function init()
 {
     $sql = "SELECT * FROM #__byjg_groups WHERE ownerid=" . $this->_ownerID;
     $this->_db->setQuery($sql);
     if ($this->_db->query() === false) {
         ByJGError::Alert(JText::_('BYJG_SQLQUERY_ERROR'));
         exit;
     }
     $lst = $this->_db->loadObjectList();
     foreach ($lst as $l) {
         $g = new ByJGGroup();
         $g->init($l->name);
         $this->_groups[] = $g;
     }
 }
 /**
  * Add a new user group
  */
 function DoAddusergroup()
 {
     //check if user canceld action, if true return
     if (isset($_REQUEST['back_button'])) {
         ByJGRedirect($this->CreateRedirectUrl());
     }
     //now get min and max id set defaults to -99
     $minID = JRequest::getVar('minID', -99);
     $maxID = JRequest::getVar('maxID', -99);
     //something strange, abrot here
     if ($minID == -99 || $maxID == -99) {
         $this->errorHandler->Alert(JText::_('BYJG_ADD_GROUP_FAILED'));
     }
     //in request are checkboxes, the values are the userids ( userid=id from phonebook entry )
     //now collect userids from request
     $userIDS = array();
     for ($i = $minID; $i <= $maxID; $i++) {
         $id = 'userid_' . $i;
         if (isset($_POST[$id])) {
             $t = JRequest::getVar($id, -99);
             if ($id == -99) {
                 $this->errorHandler->Alert(JText::_('BYJG_ADD_GROUP_FAILED'));
             } else {
                 $userIDS[] = $t;
             }
         }
     }
     //nothing selected
     if (count($userIDS) == 0) {
         $this->errorHandler->Alert(JText::_('BYJG_ADD_GROUP_NO_SELECTION'));
     }
     $groupName = JRequest::getVar('groupname', '');
     if (strlen($groupName) <= 1) {
         $this->errorHandler->Alert(JText::_('BYJG_GROUPNAME_MISSING'));
     }
     $this->Filter($groupName);
     //create a new user group, if group exists it will be loaded otherwise it will be created
     //if init is called with a non numeric value
     $group = new ByJGGroup();
     $group->init($groupName);
     //now add every entry
     foreach ($userIDS as $userid) {
         if ($group->addMember($userid) === false) {
             $this->errorHandler->Alert(JText::_('BYJG_GROUP_ADD_MEMBER_FAILED'));
         }
     }
     //reload sms user  groups
     $this->user->_groups->reload();
     ByJGRedirect($this->CreateRedirectUrl('usergroup'));
 }