classes/db.php

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