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                         if (function_exists("mysqli_connect")) {
  11                                 $this->adapter = new Db_Mysqli();
  12                         } else {
  13                                 $this->adapter = new Db_Mysql();
  14                         }
  15                         break;
  16                 case "pgsql":
  17                         $this->adapter = new Db_Pgsql();
  18                         break;
  19                 default:
  20                         die("Unknown DB_TYPE: " . DB_TYPE);
  21                 }
  22
  23                 $this->link = $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, defined('DB_PORT') ? DB_PORT : false);
  24         }
  25
  26         private function __clone() {
  27                 //
  28         }
  29
  30         public static function get() {
  31                 if (self::$instance == null)
  32                         self::$instance = new self();
  33
  34                 return self::$instance;
  35         }
  36
  37         static function quote($str){
  38                 return("'$str'");
  39         }
  40
  41         function connect($host, $user, $pass, $db, $port) {
  42                 //return $this->adapter->connect($host, $user, $pass, $db, $port);
  43                 return ;
  44         }
  45
  46         function escape_string($s, $strip_tags = true) {
  47                 return $this->adapter->escape_string($s, $strip_tags);
  48         }
  49
  50         function query($query, $die_on_error = true) {
  51                 return $this->adapter->query($query, $die_on_error);
  52         }
  53
  54         function fetch_assoc($result) {
  55                 return $this->adapter->fetch_assoc($result);
  56         }
  57
  58         function num_rows($result) {
  59                 return $this->adapter->num_rows($result);
  60         }
  61
  62         function fetch_result($result, $row, $param) {
  63                 return $this->adapter->fetch_result($result, $row, $param);
  64         }
  65
  66         function close() {
  67                 return $this->adapter->close();
  68         }
  69
  70         function affected_rows($result) {
  71                 return $this->adapter->affected_rows($result);
  72         }
  73
  74         function last_error() {
  75                 return $this->adapter->last_error();
  76         }
  77
  78 }
  79 ?>