classes/db.php

   1 <?php
   2 class Db implements IDb {
   3         private static $instance;
   4         private $adapter;
   5         private $link;
   6
   7         private function __construct() {
   8                 switch (DB_TYPE) {
   9                 case "mysql":
  10                         $this->adapter = new Db_Mysql();
  11                         break;
  12                 case "pgsql":
  13                         $this->adapter = new Db_Pgsql();
  14                         break;
  15                 default:
  16                         die("Unknown DB_TYPE: " . DB_TYPE);
  17                 }
  18
  19                 $this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT);
  20         }
  21
  22         private function __clone() {
  23                 //
  24         }
  25
  26         public static function get() {
  27                 if (self::$instance == null)
  28                         self::$instance = new self();
  29
  30                 return self::$instance;
  31         }
  32
  33         static function quote($str){
  34                 return("'$str'");
  35         }
  36
  37         function connect($host, $user, $pass, $db, $port) {
  38                 //return $this->adapter->connect($host, $user, $pass, $db, $port);
  39                 return ;
  40         }
  41
  42         function escape_string($s, $strip_tags = true) {
  43                 return $this->adapter->escape_string($s, $strip_tags);
  44         }
  45
  46         function query($query, $die_on_error = true) {
  47                 return $this->adapter->query($query, $die_on_error);
  48         }
  49
  50         function fetch_assoc($result) {
  51                 return $this->adapter->fetch_assoc($result);
  52         }
  53
  54         function num_rows($result) {
  55                 return $this->adapter->num_rows($result);
  56         }
  57
  58         function fetch_result($result, $row, $param) {
  59                 return $this->adapter->fetch_result($result, $row, $param);
  60         }
  61
  62         function close() {
  63                 return $this->adapter->close();
  64         }
  65
  66         function affected_rows($result) {
  67                 return $this->adapter->affected_rows($result);
  68         }
  69
  70         function last_error() {
  71                 return $this->adapter->last_error();
  72         }
  73
  74 }
  75 ?>