function __construct()
{
/* disable scrollable result sets since they are not compatible with lobs */
ini_set("ingres.scrollable", false);
/* the demoapp uses iconv to convert UTF-16<-->UTF-8
* TODO : remove this dependence
*/
ini_set("ingres.utf8", false);
$connectString = "";
@session_start();
if (isset($_SESSION['host']) && $_SESSION['host'] != "(local)") {
//make connection string with dynamic vnode syntax:
// @hostname,protocol,InstanceName[user,password]::database
// for example @127.0.0.1,tcp_ip,II[apache,123]::demodb
$connectString = "@";
$connectString .= $_SESSION['host'] . ",";
$connectString .= "tcp_ip,";
$connectString .= $_SESSION['instance'];
$connectString .= "[" . $_SESSION['user'] . "," . $_SESSION['password'] . "]";
$connectString .= "::" . $_SESSION['database'];
$this->Connection = ingres_connect($connectString, "", "");
} else {
//just connect to a local Ingres Instance
if (isset($_SESSION['user']) && isset($_SESSION['password']) && isset($_SESSION['database'])) {
$this->Connection = ingres_connect($_SESSION['database'], $_SESSION['user'], $_SESSION['password']);
} else {
$this->Connection = ingres_connect(DATABASE, USER, PASSWORD);
}
}
if (ingres_errno($this->Connection) != 0) {
throw new Exception("Error occured: Errno" . ingres_errno() . " Error: " . ingres_error() . "connection-String:" . $connectString, 4);
}
}
function connect($host, $name, $user, $pass)
{
if (!function_exists("ingres_connect")) {
trigger_error("FATAL ERROR: Ingres support not available. Please check your configuration.", E_USER_ERROR);
return;
}
if ("localhost" != $host) {
trigger_error("FATAL ERROR: Ingres server host has to be 'localhost'", E_USER_ERROR);
return;
}
if (!$name) {
trigger_error("FATAL ERROR: Ingres driver has to select a specific database on 'localhost'", E_USER_ERROR);
return;
}
if (null == ($this->link = ingres_connect($name, $user, $pass))) {
trigger_error("FATAL ERROR: Connection to Ingres server failed", E_USER_ERROR);
return;
}
return $this->link;
}
function connect_ingres($db, $user, $pass)
{
$this->link_ingres = ingres_connect($db, $user, $pass);
if ($this->link_ingres) {
return $this->link_ingres;
} else {
print nl2br("Could not connect. \n");
return false;
}
}
