net.php.pear/Log/sql.php

<?php
// $Id: sql.php,v 1.14 2002/12/02 05:23:00 jon Exp $
// $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 (
 *  logtime     TIMESTAMP NOT NULL,
 *  ident       char(16) NOT NULL,
 *  priority    int,
 *  message     varchar(200),
 *  primary key (logtime, ident)
 * );
 *
 * @author  Jon Parise <jon@php.net>
 * @version $Revision: 1.14 $
 * @since   Horde 1.3
 * @package Log 
 */
class Log_sql extends Log {

    /** 
    * Array containing the dsn information. 
    * @var string
    */
    var $_dsn = '';

    /** 
    * Object holding the database handle. 
    * @var string
    */
    var $_db = '';

    /**
    * Flag indicating that we're using an existing database connection.
    * @var boolean
    */
    var $_existingConnection = false;

    /** 
    * String holding the database table to use. 
    * @var string
    */
    var $_table = 'log_table';


    /**
     * Constructs a new sql logging object.
     *
     * @param string $name         The target SQL table.
     * @param string $ident        The identification field.
     * @param array $conf          The connection configuration array.
     * @param int $maxLevel        Maximum level at which to log.
     * @access public     
     */
    function Log_sql($name, $ident = '', $conf = array(),
                     $maxLevel = PEAR_LOG_DEBUG)
    {
        $this->_table = $name;
        $this->_ident = $ident;
        $this->_maxLevel = $maxLevel;

        /* If an existing database connection was provided, use it. */
        if (isset($conf['db'])) {
            $this->_db = &$conf['db'];
            $this->_existingConnection = true;
            $this->_opened = true;
        } else {
            $this->_dsn = $conf['dsn'];
        }
    }

    /**
     * Opens a connection to the database, if it has not already
     * been opened. This is implicitly called by log(), if necessary.
     *
     * @return boolean   True on success, false on failure.
     * @access public     
     */
    function open()
    {
        if (!$this->_opened) {
            $this->_db = &DB::connect($this->_dsn, true);
            if (DB::isError($this->_db)) {
                return false;
            }
            $this->_opened = true;
        }

        return true;
    }

    /**
     * Closes the connection to the database if it is still open and we were
     * the ones that opened it.  It is the caller's responsible to close an
     * existing connection that was passed to us via $conf['db'].
     *
     * @return boolean   True on success, false on failure.
     * @access public     
     */
    function close()
    {
        if ($this->_opened && !$this->_existingConnection) {
            $this->_opened = false;
            return $this->_db->disconnect();
        }

        return true;
    }

    /**
     * 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 string $message  The textual message to be logged.
     * @param string $priority The priority of the message.  Valid
     *                  values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
     *                  PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
     *                  PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
     *                  The default is PEAR_LOG_INFO.
     * @return boolean  True on success or false on failure.
     * @access public     
     */
    function log($message, $priority = PEAR_LOG_INFO)
    {
        /* Abort early if the priority is above the maximum logging level. */
        if ($priority > $this->_maxLevel) return;

        if (!$this->_opened) {
            $this->open();
        }

        /* Build the SQL query for this log entry insertion. */
        $q = sprintf("insert into %s values(NOW(), %s, %d, %s)",
            $this->_table, $this->_db->quote($this->_ident),
            $priority, $this->_db->quote($message));

        $result = $this->_db->query($q);
        if (DB::isError($result)) {
            return false;
        }

        $this->notifyAll(array('priority' => $priority, 'message' => $message));

        return true;
    }
}

?>
1	<?php
2	// $Id: sql.php,v 1.14 2002/12/02 05:23:00 jon Exp $
3	// $Horde: horde/lib/Log/sql.php,v 1.12 2000/08/16 20:27:34 chuck Exp $
4
5	require_once 'DB.php';
6
7	/**
8	* The Log_sql class is a concrete implementation of the Log::
9	* abstract class which sends messages to an SQL server. Each entry
10	* occupies a separate row in the database.
11	*
12	* This implementation uses PHP's PEAR database abstraction layer.
13	*
14	* CREATE TABLE log_table (
15	* logtime TIMESTAMP NOT NULL,
16	* ident char(16) NOT NULL,
17	* priority int,
18	* message varchar(200),
19	* primary key (logtime, ident)
20	* );
21	*
22	* @author Jon Parise <jon@php.net>
23	* @version $Revision: 1.14 $
24	* @since Horde 1.3
25	* @package Log
26	*/
27	class Log_sql extends Log {
28
29	/**
30	* Array containing the dsn information.
31	* @var string
32	*/
33	var $_dsn = '';
34
35	/**
36	* Object holding the database handle.
37	* @var string
38	*/
39	var $_db = '';
40
41	/**
42	* Flag indicating that we're using an existing database connection.
43	* @var boolean
44	*/
45	var $_existingConnection = false;
46
47	/**
48	* String holding the database table to use.
49	* @var string
50	*/
51	var $_table = 'log_table';
52
53
54	/**
55	* Constructs a new sql logging object.
56	*
57	* @param string $name The target SQL table.
58	* @param string $ident The identification field.
59	* @param array $conf The connection configuration array.
60	* @param int $maxLevel Maximum level at which to log.
61	* @access public
62	*/
63	function Log_sql($name, $ident = '', $conf = array(),
64	$maxLevel = PEAR_LOG_DEBUG)
65	{
66	$this->_table = $name;
67	$this->_ident = $ident;
68	$this->_maxLevel = $maxLevel;
69
70	/* If an existing database connection was provided, use it. */
71	if (isset($conf['db'])) {
72	$this->_db = &$conf['db'];
73	$this->_existingConnection = true;
74	$this->_opened = true;
75	} else {
76	$this->_dsn = $conf['dsn'];
77	}
78	}
79
80	/**
81	* Opens a connection to the database, if it has not already
82	* been opened. This is implicitly called by log(), if necessary.
83	*
84	* @return boolean True on success, false on failure.
85	* @access public
86	*/
87	function open()
88	{
89	if (!$this->_opened) {
90	$this->_db = &DB::connect($this->_dsn, true);
91	if (DB::isError($this->_db)) {
92	return false;
93	}
94	$this->_opened = true;
95	}
96
97	return true;
98	}
99
100	/**
101	* Closes the connection to the database if it is still open and we were
102	* the ones that opened it. It is the caller's responsible to close an
103	* existing connection that was passed to us via $conf['db'].
104	*
105	* @return boolean True on success, false on failure.
106	* @access public
107	*/
108	function close()
109	{
110	if ($this->_opened && !$this->_existingConnection) {
111	$this->_opened = false;
112	return $this->_db->disconnect();
113	}
114
115	return true;
116	}
117
118	/**
119	* Inserts $message to the currently open database. Calls open(),
120	* if necessary. Also passes the message along to any Log_observer
121	* instances that are observing this Log.
122	*
123	* @param string $message The textual message to be logged.
124	* @param string $priority The priority of the message. Valid
125	* values are: PEAR_LOG_EMERG, PEAR_LOG_ALERT,
126	* PEAR_LOG_CRIT, PEAR_LOG_ERR, PEAR_LOG_WARNING,
127	* PEAR_LOG_NOTICE, PEAR_LOG_INFO, and PEAR_LOG_DEBUG.
128	* The default is PEAR_LOG_INFO.
129	* @return boolean True on success or false on failure.
130	* @access public
131	*/
132	function log($message, $priority = PEAR_LOG_INFO)
133	{
134	/* Abort early if the priority is above the maximum logging level. */
135	if ($priority > $this->_maxLevel) return;
136
137	if (!$this->_opened) {
138	$this->open();
139	}
140
141	/* Build the SQL query for this log entry insertion. */
142	$q = sprintf("insert into %s values(NOW(), %s, %d, %s)",
143	$this->_table, $this->_db->quote($this->_ident),
144	$priority, $this->_db->quote($message));
145
146	$result = $this->_db->query($q);
147	if (DB::isError($result)) {
148	return false;
149	}
150
151	$this->notifyAll(array('priority' => $priority, 'message' => $message));
152
153	return true;
154	}
155	}
156
157	?>
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