Okay - Im writing an object to wrap a database.
The key problem is this:
- it declares a connection var as an object property
- the open() function opens the connection to the database and stores
the handle in $this->connection
- the executeQuery() method complains about not having a valid handle,
because by then, somehow, $this->connection==null!!!
Any ideas?-i swear its just something stupid ive missed ...
HELP!
Thanx in advance,
AndrewH
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The code following this returns the following to the browser:
-------------------------------------------------------------
The connection in open() is :Resource id #1
The connection in executeQuery() is :''
Warning: Supplied argument is not a valid PostgreSQL link resource in
/var/wwwroot/php/PostgreSQLDataSource.php on line 67
-------------------------------------------------------------
class PostgreSQLDataSource
{
var $connection;
var $lastResultSet;
var $error_handler;
var $host, $port, $username, $password, $database;
function PostgreSQLDataSource($host, $port, $username, $password,
$database)
{
global $error_handler;
$this->error_handler = $error_handler;
$this->host = $host;
$this->port = $port;
$this->username = $username;
$this->password = $password;
$this->database = $database;
//Legacy behaviour: $this->open($host, $port, $username, $password,
$database);
}
function open(/*variable arg list*/)
{
$connectionString = "";
if (func_num_args() == 5)
{
$this->host = func_get_arg(0);
$this->port = func_get_arg(1);
$this->username = func_get_arg(2);
$this->password = func_get_arg(3);
$this->database = func_get_arg(4);
}
if ($this->host)
$connectionString .= " host=".$this->host;
if ($this->port)
$connectionString .= " port=".$this->port;
if ($this->username)
$connectionString .= " user=".$this->username;
if ($this->password)
$connectionString .= " password=".$this->password;
if ($this->database)
$connectionString .= " dbname=".$this->database;
$this->connection = pg_Connect($connectionString);
echo "The connection in open() is :".$this->connection."<BR>";
if ($this->connection == false)
return false;
else
return true;
}
function close()
{
return pg_Close($this->connection);
}
function executeQuery($queryString)
{
echo "The connection in executeQuery() is :'".$this->connection."'<BR>";
$this->lastResultSet = pg_exec($this->connection,$queryString);
return new Iterator($this);
}
/*PRIVATE FUNCTIONS:*/
function getRow($row)
{
return pg_fetch_array($this->lastResultSet,$row);
}
function getResultLength()
{
return count($this->lastResultSet);
}
}
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