class.ilSCGroups.php

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<?php

/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once './Services/SystemCheck/classes/class.ilSCGroup.php';

class ilSCGroups 
{

        private static $instance = null;
        
        private $groups = array();
        
        private function __construct()
        {
                $this->read();
        }
        
        public static function getInstance()
        {
                if(self::$instance == NULL)
                {
                        return self::$instance = new self();
                }
                return self::$instance;
        }
        
        public function updateFromComponentDefinition($a_component_id)
        {
                foreach($this->getGroups() as $group)
                {
                        if($group->getComponentId() == $a_component_id)
                        {
                                return $group->getId();
                        }
                }

                $component_group = new ilSCGroup();
                $component_group->setComponentId($a_component_id);
                $component_group->create();
                
                return $component_group->getId();
        }
        
        public function lookupGroupByComponentId($a_component_id)
        {
                global $ilDB;
                
                $query = 'SELECT id FROM sysc_groups '.
                                'WHERE component = '.$ilDB->quote($a_component_id,'text');
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        return $row->id;
                }
                return 0;
        }
        
        
        public function getGroups()
        {
                return (array) $this->groups;
        }
        
        protected function read()
        {
                global $ilDB;
                
                $query = 'SELECT id FROM sysc_groups '.
                                'ORDER BY id ';
                $res = $ilDB->query($query);
                
                $this->groups = array();
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $this->groups[] = new ilSCGroup($row->id);
                }
        }
}
?>