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Log
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sql.php
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PHP Script
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2000-12-07
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3KB
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121 lines
<?php
// $Horde: horde/lib/Log/sql.php,v 1.12 2000/08/16 20:27:34 chuck Exp $
require_once 'DB.php';
/**
* The Log_sql class is a concrete implementation of the Log::
* abstract class which sends messages to an SQL server. Each entry
* occupies a separate row in the database.
*
* This implementation uses PHP's PEAR database abstraction layer.
*
* CREATE TABLE log_table (
* unixtime int NOT NULL,
* ident char(16) NOT NULL,
* priority int,
* message varchar(200),
* primary key (unixtime, ident)
* );
*
* @author Jon Parise <jon@csh.rit.edu>
* @version $Revision: 1.1 $
* @since Horde 1.3
*/
class Log_sql extends Log {
// {{{ properties
/** Array containing the dsn information. */
var $dsn = '';
/** Object holding the database handle. */
var $db = '';
/** String holding the database table to use. */
var $table = 'log_table';
/** Boolean indicating the current connection state. */
var $opened = false;
// }}}
// {{{ constructor
/**
* Constructs a new sql logging object.
*
* @param $log_name The target SQL table.
* @param $ident (optional) The identification field.
* @param $conf The connection configuration array.
*/
function Log_sql($log_name, $ident = '', $conf)
{
$this->table = $log_name;
$this->ident = $ident;
$this->dsn = $conf['dsn'];
}
// }}}
// {{{ open()
/**
* Opens a connection to the database, if it has not already
* been opened. This is implicitly called by log(), if necessary.
*
* @return True on success, false on failure.
*/
function open()
{
if (!$this->opened) {
$this->db = &DB::connect($this->dsn, true);
if (DB::isError($this->db) || DB::isWarning($this->db)) {
return false;
}
$this->opened = true;
}
return true;
}
// }}}
// {{{ close()
/**
* Closes the connection to the database, if it is open.
*
* @return True on success, false on failure.
*/
function close()
{
if ($this->opened) {
$this->opened = false;
return $this->db->disconnect();
}
return true;
}
// }}}
// {{{ log()
/**
* Inserts $message to the currently open database. Calls open(),
* if necessary. Also passes the message along to any Log_observer
* instances that are observing this Log.
*
* @param $message The textual message to be logged.
* @param $priority (optional) The priority of the message. Valid
* values are: LOG_EMERG, LOG_ALERT, LOG_CRIT,
* LOG_ERR, * LOG_WARNING, LOG_NOTICE, LOG_INFO,
* and LOG_DEBUG. The default is LOG_INFO.
*/
function log($message, $priority = LOG_INFO)
{
if (!$this->opened) $this->open();
$timestamp = time();
$q = "insert into $this->table
values($timestamp, '$this->ident', $priority, '$message')";
$this->db->query($q);
$this->notifyAll(array('priority' => $priority, 'message' => $message));
}
// }}}
}
?>