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Db.php
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Db.php
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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Db
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Db.php 10020 2009-08-18 14:34:09Z j.fischer@metaways.de $
*/
/**
* Class for connecting to SQL databases and performing common operations.
*
* @category Zend
* @package Zend_Db
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Db
{
/**
* Use the PROFILER constant in the config of a Zend_Db_Adapter.
*/
const PROFILER = 'profiler';
/**
* Use the CASE_FOLDING constant in the config of a Zend_Db_Adapter.
*/
const CASE_FOLDING = 'caseFolding';
/**
* Use the AUTO_QUOTE_IDENTIFIERS constant in the config of a Zend_Db_Adapter.
*/
const AUTO_QUOTE_IDENTIFIERS = 'autoQuoteIdentifiers';
/**
* Use the ALLOW_SERIALIZATION constant in the config of a Zend_Db_Adapter.
*/
const ALLOW_SERIALIZATION = 'allowSerialization';
/**
* Use the AUTO_RECONNECT_ON_UNSERIALIZE constant in the config of a Zend_Db_Adapter.
*/
const AUTO_RECONNECT_ON_UNSERIALIZE = 'autoReconnectOnUnserialize';
/**
* Use the INT_TYPE, BIGINT_TYPE, and FLOAT_TYPE with the quote() method.
*/
const INT_TYPE = 0;
const BIGINT_TYPE = 1;
const FLOAT_TYPE = 2;
/**
* PDO constant values discovered by this script result:
*
* $list = array(
* 'PARAM_BOOL', 'PARAM_NULL', 'PARAM_INT', 'PARAM_STR', 'PARAM_LOB',
* 'PARAM_STMT', 'PARAM_INPUT_OUTPUT', 'FETCH_LAZY', 'FETCH_ASSOC',
* 'FETCH_NUM', 'FETCH_BOTH', 'FETCH_OBJ', 'FETCH_BOUND',
* 'FETCH_COLUMN', 'FETCH_CLASS', 'FETCH_INTO', 'FETCH_FUNC',
* 'FETCH_GROUP', 'FETCH_UNIQUE', 'FETCH_CLASSTYPE', 'FETCH_SERIALIZE',
* 'FETCH_NAMED', 'ATTR_AUTOCOMMIT', 'ATTR_PREFETCH', 'ATTR_TIMEOUT',
* 'ATTR_ERRMODE', 'ATTR_SERVER_VERSION', 'ATTR_CLIENT_VERSION',
* 'ATTR_SERVER_INFO', 'ATTR_CONNECTION_STATUS', 'ATTR_CASE',
* 'ATTR_CURSOR_NAME', 'ATTR_CURSOR', 'ATTR_ORACLE_NULLS',
* 'ATTR_PERSISTENT', 'ATTR_STATEMENT_CLASS', 'ATTR_FETCH_TABLE_NAMES',
* 'ATTR_FETCH_CATALOG_NAMES', 'ATTR_DRIVER_NAME',
* 'ATTR_STRINGIFY_FETCHES', 'ATTR_MAX_COLUMN_LEN', 'ERRMODE_SILENT',
* 'ERRMODE_WARNING', 'ERRMODE_EXCEPTION', 'CASE_NATURAL',
* 'CASE_LOWER', 'CASE_UPPER', 'NULL_NATURAL', 'NULL_EMPTY_STRING',
* 'NULL_TO_STRING', 'ERR_NONE', 'FETCH_ORI_NEXT',
* 'FETCH_ORI_PRIOR', 'FETCH_ORI_FIRST', 'FETCH_ORI_LAST',
* 'FETCH_ORI_ABS', 'FETCH_ORI_REL', 'CURSOR_FWDONLY', 'CURSOR_SCROLL',
* 'ERR_CANT_MAP', 'ERR_SYNTAX', 'ERR_CONSTRAINT', 'ERR_NOT_FOUND',
* 'ERR_ALREADY_EXISTS', 'ERR_NOT_IMPLEMENTED', 'ERR_MISMATCH',
* 'ERR_TRUNCATED', 'ERR_DISCONNECTED', 'ERR_NO_PERM',
* );
*
* $const = array();
* foreach ($list as $name) {
* $const[$name] = constant("PDO::$name");
* }
* var_export($const);
*/
const ATTR_AUTOCOMMIT = 0;
const ATTR_CASE = 8;
const ATTR_CLIENT_VERSION = 5;
const ATTR_CONNECTION_STATUS = 7;
const ATTR_CURSOR = 10;
const ATTR_CURSOR_NAME = 9;
const ATTR_DRIVER_NAME = 16;
const ATTR_ERRMODE = 3;
const ATTR_FETCH_CATALOG_NAMES = 15;
const ATTR_FETCH_TABLE_NAMES = 14;
const ATTR_MAX_COLUMN_LEN = 18;
const ATTR_ORACLE_NULLS = 11;
const ATTR_PERSISTENT = 12;
const ATTR_PREFETCH = 1;
const ATTR_SERVER_INFO = 6;
const ATTR_SERVER_VERSION = 4;
const ATTR_STATEMENT_CLASS = 13;
const ATTR_STRINGIFY_FETCHES = 17;
const ATTR_TIMEOUT = 2;
const CASE_LOWER = 2;
const CASE_NATURAL = 0;
const CASE_UPPER = 1;
const CURSOR_FWDONLY = 0;
const CURSOR_SCROLL = 1;
const ERR_ALREADY_EXISTS = NULL;
const ERR_CANT_MAP = NULL;
const ERR_CONSTRAINT = NULL;
const ERR_DISCONNECTED = NULL;
const ERR_MISMATCH = NULL;
const ERR_NO_PERM = NULL;
const ERR_NONE = '00000';
const ERR_NOT_FOUND = NULL;
const ERR_NOT_IMPLEMENTED = NULL;
const ERR_SYNTAX = NULL;
const ERR_TRUNCATED = NULL;
const ERRMODE_EXCEPTION = 2;
const ERRMODE_SILENT = 0;
const ERRMODE_WARNING = 1;
const FETCH_ASSOC = 2;
const FETCH_BOTH = 4;
const FETCH_BOUND = 6;
const FETCH_CLASS = 8;
const FETCH_CLASSTYPE = 262144;
const FETCH_COLUMN = 7;
const FETCH_FUNC = 10;
const FETCH_GROUP = 65536;
const FETCH_INTO = 9;
const FETCH_LAZY = 1;
const FETCH_NAMED = 11;
const FETCH_NUM = 3;
const FETCH_OBJ = 5;
const FETCH_ORI_ABS = 4;
const FETCH_ORI_FIRST = 2;
const FETCH_ORI_LAST = 3;
const FETCH_ORI_NEXT = 0;
const FETCH_ORI_PRIOR = 1;
const FETCH_ORI_REL = 5;
const FETCH_SERIALIZE = 524288;
const FETCH_UNIQUE = 196608;
const NULL_EMPTY_STRING = 1;
const NULL_NATURAL = 0;
const NULL_TO_STRING = NULL;
const PARAM_BOOL = 5;
const PARAM_INPUT_OUTPUT = -2147483648;
const PARAM_INT = 1;
const PARAM_LOB = 3;
const PARAM_NULL = 0;
const PARAM_STMT = 4;
const PARAM_STR = 2;
/**
* Factory for Zend_Db_Adapter_Abstract classes.
*
* First argument may be a string containing the base of the adapter class
* name, e.g. 'Mysqli' corresponds to class Zend_Db_Adapter_Mysqli. This
* is case-insensitive.
*
* First argument may alternatively be an object of type Zend_Config.
* The adapter class base name is read from the 'adapter' property.
* The adapter config parameters are read from the 'params' property.
*
* Second argument is optional and may be an associative array of key-value
* pairs. This is used as the argument to the adapter constructor.
*
* If the first argument is of type Zend_Config, it is assumed to contain
* all parameters, and the second argument is ignored.
*
* @param mixed $adapter String name of base adapter class, or Zend_Config object.
* @param mixed $config OPTIONAL; an array or Zend_Config object with adapter parameters.
* @return Zend_Db_Adapter_Abstract
* @throws Zend_Db_Exception
*/
public static function factory($adapter, $config = array())
{
if ($config instanceof Zend_Config) {
$config = $config->toArray();
}
/*
* Convert Zend_Config argument to plain string
* adapter name and separate config object.
*/
if ($adapter instanceof Zend_Config) {
if (isset($adapter->params)) {
$config = $adapter->params->toArray();
}
if (isset($adapter->adapter)) {
$adapter = (string) $adapter->adapter;
} else {
$adapter = null;
}
}
/*
* Verify that adapter parameters are in an array.
*/
if (!is_array($config)) {
/**
* @see Zend_Db_Exception
*/
require_once 'Zend/Db/Exception.php';
throw new Zend_Db_Exception('Adapter parameters must be in an array or a Zend_Config object');
}
/*
* Verify that an adapter name has been specified.
*/
if (!is_string($adapter) || empty($adapter)) {
/**
* @see Zend_Db_Exception
*/
require_once 'Zend/Db/Exception.php';
throw new Zend_Db_Exception('Adapter name must be specified in a string');
}
/*
* Form full adapter class name
*/
$adapterNamespace = 'Zend_Db_Adapter';
if (isset($config['adapterNamespace'])) {
if ($config['adapterNamespace'] != '') {
$adapterNamespace = $config['adapterNamespace'];
}
unset($config['adapterNamespace']);
}
$adapterName = strtolower($adapterNamespace . '_' . $adapter);
$adapterName = str_replace(' ', '_', ucwords(str_replace('_', ' ', $adapterName)));
/*
* Load the adapter class. This throws an exception
* if the specified class cannot be loaded.
*/
if (!class_exists($adapterName)) {
require_once 'Zend/Loader.php';
Zend_Loader::loadClass($adapterName);
}
/*
* Create an instance of the adapter class.
* Pass the config to the adapter class constructor.
*/
$dbAdapter = new $adapterName($config);
/*
* Verify that the object created is a descendent of the abstract adapter type.
*/
if (! $dbAdapter instanceof Zend_Db_Adapter_Abstract) {
/**
* @see Zend_Db_Exception
*/
require_once 'Zend/Db/Exception.php';
throw new Zend_Db_Exception("Adapter class '$adapterName' does not extend Zend_Db_Adapter_Abstract");
}
return $dbAdapter;
}
}

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