From 38dc510b2dba02dba5a60fbc00947aac4fd24aab Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Wed, 29 Feb 2012 06:53:52 -0500
Subject: [PATCH] - Fix warning when properties array is empty
---
program/include/rcube_mdb2.php | 134 ++++++++++++++++++++++++++++++++------------
1 files changed, 97 insertions(+), 37 deletions(-)
diff --git a/program/include/rcube_mdb2.php b/program/include/rcube_mdb2.php
index b25938b..c103f9a 100644
--- a/program/include/rcube_mdb2.php
+++ b/program/include/rcube_mdb2.php
@@ -6,7 +6,10 @@
| |
| This file is part of the Roundcube Webmail client |
| Copyright (C) 2005-2009, The Roundcube Dev Team |
- | Licensed under the GNU GPL |
+ | |
+ | Licensed under the GNU General Public License version 3 or |
+ | any later version with exceptions for skins & plugins. |
+ | See the README file for a full license statement. |
| |
| PURPOSE: |
| PEAR:DB wrapper class that implements PEAR MDB2 functions |
@@ -35,15 +38,16 @@
*/
class rcube_mdb2
{
- var $db_dsnw; // DSN for write operations
- var $db_dsnr; // DSN for read operations
- var $db_connected = false; // Already connected ?
- var $db_mode = ''; // Connection mode
- var $db_handle = 0; // Connection handle
- var $db_error = false;
- var $db_error_msg = '';
+ public $db_dsnw; // DSN for write operations
+ public $db_dsnr; // DSN for read operations
+ public $db_connected = false; // Already connected ?
+ public $db_mode = ''; // Connection mode
+ public $db_handle = 0; // Connection handle
+ public $db_error = false;
+ public $db_error_msg = '';
private $debug_mode = false;
+ private $conn_failure = false;
private $a_query_results = array('dummy');
private $last_res_id = 0;
private $tables;
@@ -57,7 +61,7 @@
*/
function __construct($db_dsnw, $db_dsnr='', $pconn=false)
{
- if ($db_dsnr == '')
+ if (empty($db_dsnr))
$db_dsnr = $db_dsnw;
$this->db_dsnw = $db_dsnw;
@@ -83,13 +87,15 @@
'persistent' => $this->db_pconn,
'emulate_prepared' => $this->debug_mode,
'debug' => $this->debug_mode,
- 'debug_handler' => 'mdb2_debug_handler',
+ 'debug_handler' => array($this, 'debug_handler'),
'portability' => MDB2_PORTABILITY_ALL ^ MDB2_PORTABILITY_EMPTY_TO_NULL);
if ($this->db_provider == 'pgsql') {
$db_options['disable_smart_seqname'] = true;
$db_options['seqname_format'] = '%s';
}
+ $this->db_error = false;
+ $this->db_error_msg = null;
$dbh = MDB2::connect($dsn, $db_options);
@@ -121,30 +127,40 @@
*/
function db_connect($mode)
{
+ // previous connection failed, don't attempt to connect again
+ if ($this->conn_failure) {
+ return;
+ }
+
+ // no replication
+ if ($this->db_dsnw == $this->db_dsnr) {
+ $mode = 'w';
+ }
+
// Already connected
if ($this->db_connected) {
- // connected to read-write db, current connection is ok
- if ($this->db_mode == 'w')
- return;
-
- // no replication, current connection is ok for read and write
- if (empty($this->db_dsnr) || $this->db_dsnw == $this->db_dsnr) {
- $this->db_mode = 'w';
+ // connected to db with the same or "higher" mode
+ if ($this->db_mode == 'w' || $this->db_mode == $mode) {
return;
}
-
- // Same mode, current connection is ok
- if ($this->db_mode == $mode)
- return;
}
$dsn = ($mode == 'r') ? $this->db_dsnr : $this->db_dsnw;
- $this->db_handle = $this->dsn_connect($dsn);
+ $this->db_handle = $this->dsn_connect($dsn);
$this->db_connected = !PEAR::isError($this->db_handle);
+ // use write-master when read-only fails
+ if (!$this->db_connected && $mode == 'r') {
+ $mode = 'w';
+ $this->db_handle = $this->dsn_connect($this->db_dsnw);
+ $this->db_connected = !PEAR::isError($this->db_handle);
+ }
+
if ($this->db_connected)
- $this->db_mode = $mode;
+ $this->db_mode = $mode;
+ else
+ $this->conn_failure = true;
}
@@ -185,6 +201,16 @@
function is_connected()
{
return PEAR::isError($this->db_handle) ? false : $this->db_connected;
+ }
+
+
+ /**
+ * Is database replication configured?
+ * This returns true if dsnw != dsnr
+ */
+ function is_replicated()
+ {
+ return !empty($this->db_dsnr) && $this->db_dsnw != $this->db_dsnr;
}
@@ -269,7 +295,7 @@
raise_error(array('code' => 500, 'type' => 'db',
'line' => __LINE__, 'file' => __FILE__,
'message' => $this->db_error_msg), true, false);
-
+
$result = false;
}
else {
@@ -428,7 +454,7 @@
if (!PEAR::isError($result = $this->db_handle->listTableFields($table))) {
return $result;
}
-
+
return null;
}
@@ -511,7 +537,7 @@
*/
function now()
{
- switch($this->db_provider) {
+ switch ($this->db_provider) {
case 'mssql':
case 'sqlsrv':
return "getdate()";
@@ -545,9 +571,12 @@
/**
* Return SQL statement to convert a field value into a unix timestamp
*
+ * This method is deprecated and should not be used anymore due to limitations
+ * of timestamp functions in Mysql (year 2038 problem)
+ *
* @param string $field Field name
* @return string SQL statement to use in query
- * @access public
+ * @deprecated
*/
function unixtimestamp($field)
{
@@ -595,6 +624,36 @@
default:
return $this->quote_identifier($column).' LIKE '.$this->quote($value);
}
+ }
+
+ /**
+ * Abstract SQL statement for value concatenation
+ *
+ * @return string SQL statement to be used in query
+ * @access public
+ */
+ function concat(/* col1, col2, ... */)
+ {
+ $func = '';
+ $args = func_get_args();
+ if (is_array($args[0]))
+ $args = $args[0];
+
+ switch($this->db_provider) {
+ case 'mysql':
+ case 'mysqli':
+ $func = 'CONCAT';
+ $delim = ', ';
+ break;
+ case 'mssql':
+ case 'sqlsrv':
+ $delim = ' + ';
+ break;
+ default:
+ $delim = ' || ';
+ }
+
+ return $func . '(' . join($delim, $args) . ')';
}
@@ -737,16 +796,17 @@
'md5', 'rcube_sqlite_md5');
}
-} // end class rcube_db
-
-/* this is our own debug handler for the MDB2 connection */
-function mdb2_debug_handler(&$db, $scope, $message, $context = array())
-{
- if ($scope != 'prepare') {
- $debug_output = sprintf('%s(%d): %s;',
- $scope, $db->db_index, rtrim($message, ';'));
- write_log('sql', $debug_output);
+ /**
+ * Debug handler for the MDB2
+ */
+ function debug_handler(&$db, $scope, $message, $context = array())
+ {
+ if ($scope != 'prepare') {
+ $debug_output = sprintf('%s(%d): %s;',
+ $scope, $db->db_index, rtrim($message, ';'));
+ write_log('sql', $debug_output);
+ }
}
-}
+} // end class rcube_db
--
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