<?php
	class UsersItem extends kDBItem {
	
		/**
		 * Returns IDs of groups to which user belongs and membership is not expired
		 *
		 * @return Array
		 * @access public
		 */
		function getMembershipGroups($force_reload = false)
		{
			$user_groups = $this->Application->RecallVar('UserGroups');
			if($user_groups === false || $force_reload)
			{
				$sql = 'SELECT GroupId FROM %s WHERE (PortalUserId = %s) AND ( (MembershipExpires IS NULL) OR ( MembershipExpires >= UNIX_TIMESTAMP() ) )';
				$sql = sprintf($sql, TABLE_PREFIX.'UserGroup', $this->GetID() );
				return $this->Conn->GetCol($sql);
			}
			else
			{
				return explode(',', $user_groups);
			}
		}
	}
?>