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| Current File : //opt/cpanel/ea-php54/root/usr/share/pear/RVSeagullMod/lib/SGL/DB.php |
<?php
/* Reminder: always indent with 4 spaces (no tabs). */
// +---------------------------------------------------------------------------+
// | Copyright (c) 2008, Demian Turner |
// | All rights reserved. |
// | |
// | Redistribution and use in source and binary forms, with or without |
// | modification, are permitted provided that the following conditions |
// | are met: |
// | |
// | o Redistributions of source code must retain the above copyright |
// | notice, this list of conditions and the following disclaimer. |
// | o Redistributions in binary form must reproduce the above copyright |
// | notice, this list of conditions and the following disclaimer in the |
// | documentation and/or other materials provided with the distribution. |
// | o The names of the authors may not be used to endorse or promote |
// | products derived from this software without specific prior written |
// | permission. |
// | |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
// | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
// | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
// | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
// | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
// | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
// | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
// | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
// | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
// | |
// +---------------------------------------------------------------------------+
// | Seagull 0.6 |
// +---------------------------------------------------------------------------+
// | DB.php |
// +---------------------------------------------------------------------------+
// | Authors: Demian Turner <demian@phpkitchen.com> |
// +---------------------------------------------------------------------------+
// $Id: DB.php,v 1.14 2005/06/20 10:56:31 demian Exp $
if (defined('SGL_DSN_ARRAY') === false) {
define('SGL_DSN_ARRAY',0);
}
if (defined('SGL_DSN_STRING') === false) {
define('SGL_DSN_STRING',1);
}
/**
* Class for handling DB resources.
*
* @package SGL
* @author Demian Turner <demian@phpkitchen.com>
* @version $Revision: 1.14 $
*/
if (class_exists('SGL_DB') === false) {
class SGL_DB
{
/**
* Returns a singleton reference to the DB resource.
*
* example usage:
* $dbh = SGL_DB::singleton();
* warning: in order to work correctly, DB handle
* singleton must be instantiated statically and
* by reference
*
* @access public
* @static
* @param string $dsn the datasource details if supplied: see {@link DB::parseDSN()} for format
* @return mixed reference to DB resource or false on failure to connect
*/
public static function singleton($dsn = null)
{
$msg = 'Cannot connect to DB, check your credentials';
$dsn = (is_null($dsn)) ? SGL_DB::getDsn(SGL_DSN_STRING) : $dsn;
if (is_array($dsn) && empty($dsn['phptype'])) {
//Fix PHP 5.4
return SGL::raiseError($msg, SGL_ERROR_DBFAILURE);
}
$c = SGL_Config::singleton();
$conf = $c->getAll();
static $aInstances;
if (!isset($aInstances)) {
$aInstances = array();
}
//fixed notice $dsn is not string
$signature = (is_string($dsn)) ? md5($dsn) : null;
if (!isset($aInstances[$signature])) {
///FIX PHP 5.3(use MDB2) by Witoon+Puttipong
if (SGL_DB_DRIVER === 'DB') {
$conn = DB::connect($dsn);
} else {
$conn = SGL_MDB2::singleton($dsn, true);
}
if (SGL::isError($conn)) {
///FIX PHP 5.3(use MDB2) by Witoon+Puttipong
// remove sensitve details, ie, db password
$errorCode = (SGL_DB_DRIVER === 'DB')
? DB_ERROR_CONNECT_FAILED
: MDB2_ERROR_CONNECT_FAILED;
//if ($conn->getCode() == DB_ERROR_CONNECT_FAILED) {
if ($conn->getCode() == $errorCode) {
$oLastStackError = SGL_Error::pop();
$oLastStackError->userinfo = ''; //crude but give me an API!
SGL_Error::push($oLastStackError);
}
if (is_file(SGL_VAR_DIR . '/INSTALL_COMPLETE.php') && defined('SGL_INSTALLED')) {
$msg .= 'If you remove the file seagull/var/INSTALL_COMPLETE.php you will be'.
' able to run the setup again.';
}
$err = SGL::raiseError($msg,
SGL_ERROR_DBFAILURE);
return $err;
}
if (!empty($conf['db']['postConnect'])) {
$conn->query($conf['db']['postConnect']);
}
///FIX PHP 5.3(use MDB2) by Witoon+Puttipong
if (SGL_DB_DRIVER === 'DB') {
$conn->setFetchMode(DB_FETCHMODE_OBJECT);
} else {
$conn->setFetchMode(MDB2_FETCHMODE_OBJECT);
}
$aInstances[$signature] = $conn;
}
return $aInstances[$signature];
}
/**
* Returns the default dsn specified in the global config.
*
* @access public
* @static
* @param int $type a constant that specifies the return type, ie, array or string
* @return mixed a string or array contained the data source name
*/
public static function getDsn($type = SGL_DSN_ARRAY, $excludeDbName = false)
{
///Start FIX PHP 5.3(use MDB2) by Witoon+Puttipong
$locator = SGL_ServiceLocator::singleton();
$dbh = $locator->get('DB');
if (!$dbh || SGL_DB_DRIVER === 'DB') {
$c = SGL_Config::singleton();
$conf = $c->getAll();
if ($dbh) {
$conf['db']['user'] = $dbh->dsn['username'];
$conf['db']['pass'] = $dbh->dsn['password'];
$conf['db']['protocol'] = $dbh->dsn['protocol'];
$conf['db']['socket'] = $dbh->dsn['socket'];
$conf['db']['host'] = $dbh->dsn['hostspec'];
$conf['db']['port'] = $dbh->dsn['port'];
$conf['db']['name'] = $dbh->dsn['database'];
}
if (!count($conf)) {
return false;
}
if ($type == SGL_DSN_ARRAY) {
return SGL_DB::_getDsnAsArray($conf, $excludeDbName);
} else {
return SGL_DB::_getDsnAsString($conf, $excludeDbName);
}
}
return ($type == SGL_DSN_ARRAY)
? $dbh->getDsn($type = 'array')
: $dbh->getDsn($type = 'string');
///End FIX PHP 5.3(use MDB2) by Witoon+Puttipong
}
public static function _getDsnAsArray($conf, $excludeDbName = false)
{
$dsn = array(
'phptype' => $conf['db']['type'],
'username' => $conf['db']['user'],
'password' => $conf['db']['pass'],
'protocol' => $conf['db']['protocol'],
'socket' => $conf['db']['socket'],
'hostspec' => $conf['db']['host'],
'port' => $conf['db']['port']
);
if (!$excludeDbName) {
$dsn['database'] = $conf['db']['name'];
}
return $dsn;
}
public static function _getDsnAsString($conf, $excludeDbName = false)
{
$socket = (isset($conf['db']['protocol'])
&& $conf['db']['protocol'] == 'unix'
&& !empty($conf['db']['socket']))
? '(' . $conf['db']['socket'] . ')'
: '';
$protocol = isset($conf['db']['protocol'])
? $conf['db']['protocol'] . $socket
: '';
$host = !empty($conf['db']['host']) ? $conf['db']['host'] : '';
$host = empty($conf['db']['socket']) ? '+' . $host : '';
$port = (!empty($conf['db']['port'])
&& isset($conf['db']['protocol'])
&& ($conf['db']['protocol'] == 'tcp'))
? ':' . $conf['db']['port']
: '';
$type = !empty($conf['db']['type']) ? $conf['db']['type'] : '';
$user = !empty($conf['db']['user']) ? $conf['db']['user'] : '';
$passwd = !empty($conf['db']['pass']) ? $conf['db']['pass'] : '';
$dsn = $type . '://' .
$user . ':' .
$passwd . '@' .
$protocol .
$host . $port;
if (!$excludeDbName && isset($conf['db']['name'])) {
$dsn .= '/' . $conf['db']['name'];
}
return $dsn;
}
/**
* Sets the DB_DataObject DB resource to be the same as the sgl DB singleton. You can
* use this for sharing connections between PEAR::DataObjects and SGL_DB.
* This enables you to use DataObjects and SGL_DB in the same transaction.
*
* example usage:
* $oUser = DB_DataObject::factory($this->conf['table']['user']);
* SGL_DB::setConnection();
* $dbh->autocommit();
* ... do some transactional DO and SGL_DB stuff
* $dbh->commit();
*
* @access public
* @param string $dsn Supplied database resource name
* @static
*/
public static function setConnection($dsn = null)
{
$locator = SGL_ServiceLocator::singleton();
$singleton = $locator->get('DB');
if (!$singleton) {
$singleton = SGL_DB::singleton();
$locator->register('DB', $singleton);
}
$dsn = (is_null($dsn)) ? SGL_DB::getDsn(SGL_DSN_STRING) : $dsn;
$dsnMd5 = md5($dsn);
///FIX PHP 5.3(use MDB2) by Witoon+Puttipong
if (SGL_DB_DRIVER === 'DB') {
$dbh = $singleton;
} else {
//MDB2
$dbh = $singleton->dbh;
}
unset($GLOBALS['_DB_DATAOBJECT']['CONNECTIONS'][$dsnMd5]);
$GLOBALS['_DB_DATAOBJECT']['CONNECTIONS'][$dsnMd5] = &$dbh;
///FIX PHP 5.3(use MDB2) by Witoon+Puttipong
}
/**
* Helper method - Rewrite the query into a "SELECT COUNT(*)" query.
*
* @param string $sql query
* @return string rewritten query OR false if the query can't be rewritten
* @access private
*/
public static function rewriteCountQuery($sql)
{
if (preg_match('/^\s*SELECT\s+\bDISTINCT\b/is', $sql) || preg_match('/\s+GROUP\s+BY\s+/is', $sql)) {
return false;
}
$queryCount = preg_replace('/(?:.*)\bFROM\b\s+/Uims', 'SELECT COUNT(*) FROM ', $sql, 1);
list($queryCount, ) = preg_split('/\s+ORDER\s+BY\s+/is', $queryCount);
list($queryCount, ) = preg_split('/\bLIMIT\b/is', $queryCount);
return trim($queryCount);
}
/**
* @param object $db PEAR::DB instance
* @param string $query db query
* @param array $pager_options PEAR::Pager options
* @param boolean $disabled Disable pagination (get all results)
* @param int $fetchMode fetchmode to use
* @param mixed $dbparams array, string or numeric data passed to DB execute
* @return array with links and paged data
*/
function getPagedData(&$db, $query, $pager_options = array(), $disabled = false,
$fetchMode = SGL_DB_FETCHMODE_ASSOC, $dbparams = array())
{
if (!array_key_exists('totalItems', $pager_options) || is_null($pager_options['totalItems'])) {
// be smart and try to guess the total number of records
if ($countQuery = SGL_DB::rewriteCountQuery($query)) {
$totalItems = $db->getOne($countQuery, $dbparams);
if (SGL::isError($totalItems)) {
return $totalItems;
}
} else {
$res =& $db->query($query, $dbparams);
if (SGL::isError($res)) {
return $res;
}
$totalItems = (int)$res->numRows();
$res->free();
}
$pager_options['totalItems'] = $totalItems;
}
require_once 'Pager/Pager.php';
// To get Seagull URL Style working for Pager
$req = SGL_Request::singleton();
$pager_options['currentPage'] = (array_key_exists('currentPage', $pager_options))
? $pager_options['currentPage']
: $req->get('pageID');
$pager_options['append'] = isset($pager_options['append'])
? $pager_options['append']
: false;
$pager_options['fileName'] = isset($pager_options['fileName'])
? $pager_options['fileName']
: '/pageID/%d/';
// translate PEAR::Pager
$pager_options['altPrev'] = SGL_String::translate('altPrev');
$pager_options['altNext'] = SGL_String::translate('altNext');
$pager_options['altPage'] = SGL_String::translate('altPage');
$pager_options['prevImg'] = SGL_String::translate('prevImg');
$pager_options['nextImg'] = SGL_String::translate('nextImg');
$pager = Pager::factory($pager_options);
$page = array();
$page['totalItems'] = $pager_options['totalItems'];
$pager->links = str_replace('//pageID', '/pageID', $pager->links);
$page['links'] = str_replace("/pageID/".$pager->getCurrentPageID()."/", "/", $pager->links);
$page['page_numbers'] = array(
'current' => $pager->getCurrentPageID(),
'total' => $pager->numPages()
);
list($page['from'], $page['to']) = $pager->getOffsetByPageId();
$res = ($disabled)
? $db->limitQuery($query, 0, $page['totalItems'], $dbparams)
: $db->limitQuery($query, $page['from']-1, $pager_options['perPage'], $dbparams);
if (SGL::isError($res)) {
return $res;
}
$page['data'] = array();
///Fix PHP5.3 (use MDB2)
if (SGL_DB_DRIVER == 'DB') {
while ($res->fetchInto($row, $fetchMode)) {
$page['data'][] = $row;
}
} else {
//MDB2 driver
while ($row = $res->fetchRow($fetchMode)) {
$page['data'][] = $row;
}
}
///Fix PHP5.3 (use MDB2)
if ($disabled) {
$page['links'] = '';
$page['page_numbers'] = array(
'current' => 1,
'total' => 1
);
}
return $page;
}
}
}
/**
* ServiceLocator.
*
* @package SGL
* @author Luis Correa d'Almeida <luis@awarez.net>
* @author Andrew Hill <andrew@awarez.net>
*/
/**
* A class that allows services to be globally registered, so that they
* can be accessed by any class that needs them. Also allows Mock Objects
* to be easily used as replacements for classes during testing.
*
* @package SGL
* @author Demian Turner <demian@phpkitchen.com>
*/
if (class_exists('SGL_ServiceLocator') === false) {
class SGL_ServiceLocator
{
var $aServices = array();
/**
* A method to return a singleton handle to the service locator class.
*/
public static function singleton()
{
static $instance;
if (!$instance) {
$class = __CLASS__;
$instance = new $class();
}
return $instance;
}
/**
* A method to register a service with the service locator class.
*
* @param string $serviceName The name of the service being registered.
* @param mixed $oService The object (service) being registered.
* @return boolean Always returns true.
*/
public function register($serviceName, &$oService)
{
$this->aServices[$serviceName] = &$oService;
return true;
}
/**
* A method to remove a registered service from the service locator class.
*
* @param string $serviceName The name of the service being de-registered.
*/
public function remove($serviceName)
{
unset($this->aServices[$serviceName]);
}
/**
* A method to return a registered service.
*
* @param string $serviceName The name of the service required.
* @return mixed Either the service object requested, or false if the
* requested service was not registered.
*/
public function &get($serviceName)
{
if (isset($this->aServices[$serviceName])) {
$ret = $this->aServices[$serviceName];
} else {
$ret = false;
}
return $ret;
}
/**
* A method to return a registered service.
*
* @param string $serviceName The name of the service required.
* @return mixed Either the service object requested, or false if the
* requested service was not registered.
* @static
*/
public static function &staticGet($serviceName)
{
$oServiceLocator = SGL_ServiceLocator::singleton();
return $oServiceLocator->get($serviceName);
}
}
}
?>
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