<?php


require_once "../path.php";
require_once "../public/_pdo.php";
require_once '../public/function.php';
require_once '../ucenter/function.php';

function group_get_name($id){
	if(isset($id)){
		PDO_Connect("sqlite:"._FILE_DB_GROUP_);
		$query = "SELECT name FROM group_info  WHERE id=?";
		$Fetch = PDO_FetchRow($query,array($id));
		if($Fetch){
			return $Fetch["name"];
		}
		else{
			return "";
		}
	}
	else{
		return "";
	}
}

class GroupInfo
{
    private $dbh;
    private $buffer;
    public function __construct() {
        $dns = "sqlite:"._FILE_DB_GROUP_;
        $this->dbh = new PDO($dns, "", "",array(PDO::ATTR_PERSISTENT=>true));
        $this->dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_WARNING);  
        $buffer = array();
    }

    public function getName($id){
        if(empty($id)){
            return "";
        }
        if(isset($buffer[$id])){
            return $buffer[$id];
        }
        if($this->dbh){
            $query = "SELECT name FROM group_info WHERE id= ? ";
            $stmt = $this->dbh->prepare($query);
            $stmt->execute(array($id));
            $user = $stmt->fetch(PDO::FETCH_ASSOC);
            if($user){
                $buffer[$id] = $user["name"];
                return $buffer[$id];
            }
            else{
                $buffer[$id] ="";
                return $buffer[$id];
            }            
        }
        else{
            $buffer[$id] ="";
            return $buffer[$id];
        }
    }
}

?>