git.dj3c1t.com Git - mtweb/blob - web/app/data/impl/mw_mysql.php

   1 <?php
   2
   3   class mw_mysql{
   4
   5     var $link;
   6
   7     var $host;
   8     var $base;
   9     var $user;
  10     var $password;
  11
  12     var $EXTENTION_OK;
  13
  14     function extention_ok(&$env) { return $this->EXTENTION_OK; }
  15
  16     function mw_mysql($host, $base, $user, $password){
  17       $this->host = $host;
  18       $this->base = $base;
  19       $this->user = $user;
  20       $this->password = $password;
  21       $this->EXTENTION_OK = function_exists("mysql_connect");
  22     }
  23
  24     function connect($host, $base, $user, $password){
  25       $this->link = @mysql_connect($host, $user, $password);
  26       if(!$this->link) throw new Exception($this->exception_out("Impossible d'etablir une connection au serveur"));
  27       @mysql_query("SET NAMES 'utf8'");
  28       if($base){
  29         $connected = @mysql_select_db($base, $this->link);
  30         if(!$connected) throw new Exception($this->exception_out("Impossible de selectioner la base ".$base));
  31       }
  32       return true;
  33     }
  34
  35     function select_db($db_name){\r
  36       $this->base = $db_name;\r
  37       if(!$this->link) $this->connect($this->host, $this->base, $this->user, $this->password);\r
  38       return $this->query("USE ".$db_name);\r
  39     }
  40
  41     function table_exists($base, $table){\r
  42       if(!$this->link) $this->connect($this->host, $this->base, $this->user, $this->password);\r
  43       $this->select_db($base);\r
  44       $rst = $this->query("SHOW TABLES");\r
  45       while($v_rst = mysql_fetch_array($rst)){\r
  46         if(strcmp($v_rst[0], $table) == 0) return true;\r
  47       }\r
  48       mysql_free_result($rst);\r
  49       return false;\r
  50     }
  51
  52     function query($query_string){\r
  53       if(!$this->link) $this->connect($this->host, $this->base, $this->user, $this->password);\r
  54       $result = @mysql_query($query_string, $this->link);\r
  55       if(!$result) throw new Exception($this->exception_out("Syntaxe invalide dans une requete"));\r
  56       return $result;\r
  57     }
  58
  59     function fetch_assoc($rst){
  60       if($this->link){
  61         if($rst){
  62           return mysql_fetch_assoc($rst);
  63         }
  64         else throw new Exception($this->exception_out("fetch_assoc sans result handler"));
  65       }
  66       else throw new Exception($this->exception_out("fetch_assoc sans connexion"));
  67     }
  68
  69     function insert_id(){
  70       if($this->link){
  71         return mysql_insert_id($this->link);
  72       }
  73       else throw new Exception($this->exception_out("insert_id sans connexion"));
  74     }
  75
  76     function free_result($rst){
  77       if($this->link){
  78         if($rst){
  79           return mysql_free_result($rst);
  80         }
  81         else throw new Exception($this->exception_out("free_result sans result handler"));
  82       }
  83       else throw new Exception($this->exception_out("free_result sans connexion"));
  84     }
  85
  86     function close(){
  87       if($this->link) return mysql_close($this->link);
  88       return true;
  89     }
  90
  91     function exception_out($message){\r
  92       return "[erreur] mysql : ".$message;\r
  93     }
  94
  95   }
  96
  97 ?>