730 lines
19 KiB
PHP
730 lines
19 KiB
PHP
<?php
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/**
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* 2007-2016 PrestaShop
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*
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* NOTICE OF LICENSE
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*
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* This source file is subject to the Open Software License (OSL 3.0)
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* that is bundled with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://opensource.org/licenses/osl-3.0.php
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@prestashop.com so we can send you a copy immediately.
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*
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* DISCLAIMER
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*
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* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
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* versions in the future. If you wish to customize PrestaShop for your
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* needs please refer to https://www.prestashop.com for more information.
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*
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* @author PrestaShop SA <contact@prestashop.com>
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* @copyright 2007-2016 PrestaShop SA
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* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
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* International Registered Trademark & Property of PrestaShop SA
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*/
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abstract class DbCore
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{
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/**
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* Constants used by insert() method
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*/
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const INSERT = 1;
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const INSERT_IGNORE = 2;
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const REPLACE = 3;
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/**
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* @var string Server (eg. localhost)
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*/
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protected $server;
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/**
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* @var string Database user (eg. root)
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*/
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protected $user;
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/**
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* @var string Database password (eg. can be empty !)
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*/
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protected $password;
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/**
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* @var string Database name
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*/
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protected $database;
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/**
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* @var bool
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*/
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protected $is_cache_enabled;
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/**
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* @var mixed Ressource link
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*/
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protected $link;
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/**
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* @var mixed SQL cached result
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*/
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protected $result;
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/**
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* @var array List of DB instance
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*/
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protected static $instance = array();
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/**
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* @var array Object instance for singleton
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*/
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protected static $_servers = array(
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array('server' => _DB_SERVER_, 'user' => _DB_USER_, 'password' => _DB_PASSWD_, 'database' => _DB_NAME_), /* MySQL Master server */
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// Add here your slave(s) server(s)
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// array('server' => '192.168.0.15', 'user' => 'rep', 'password' => '123456', 'database' => 'rep'),
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// array('server' => '192.168.0.3', 'user' => 'myuser', 'password' => 'mypassword', 'database' => 'mydatabase'),
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);
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/**
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* Store last executed query
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*
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* @var string
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*/
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protected $last_query;
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/**
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* Last cached query
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*
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* @var string
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*/
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protected $last_cached;
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/**
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* Open a connection
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*/
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abstract public function connect();
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/**
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* Close a connection
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*/
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abstract public function disconnect();
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/**
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* Execute a query and get result resource
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*
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* @param string $sql
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* @return mixed
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*/
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abstract protected function _query($sql);
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/**
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* Get number of rows in a result
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*
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* @param mixed $result
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*/
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abstract protected function _numRows($result);
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/**
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* Get the ID generated from the previous INSERT operation
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*/
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abstract public function Insert_ID();
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/**
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* Get number of affected rows in previous database operation
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*/
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abstract public function Affected_Rows();
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/**
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* Get next row for a query which doesn't return an array
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*
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* @param mixed $result
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*/
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abstract public function nextRow($result = false);
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/**
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* Get database version
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*
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* @return string
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*/
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abstract public function getVersion();
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/**
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* Protect string against SQL injections
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*
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* @param string $str
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* @return string
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*/
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abstract public function _escape($str);
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/**
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* Returns the text of the error message from previous database operation
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*/
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abstract public function getMsgError();
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/**
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* Returns the number of the error from previous database operation
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*/
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abstract public function getNumberError();
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/* do not remove, useful for some modules */
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abstract public function set_db($db_name);
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/**
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* Get Db object instance
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*
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* @param bool $master Decides whether the connection to be returned by the master server or the slave server
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* @return Db instance
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*/
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public static function getInstance($master = true)
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{
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static $id = 0;
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$total_servers = count(self::$_servers);
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if ($master || $total_servers == 1)
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$id_server = 0;
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else
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{
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$id++;
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$id_server = ($total_servers > 2 && ($id % $total_servers) != 0) ? $id : 1;
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}
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if (!isset(self::$instance[$id_server]))
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{
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$class = Db::getClass();
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self::$instance[$id_server] = new $class(
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self::$_servers[$id_server]['server'],
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self::$_servers[$id_server]['user'],
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self::$_servers[$id_server]['password'],
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self::$_servers[$id_server]['database']
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);
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}
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return self::$instance[$id_server];
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}
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/**
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* Get child layer class
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*
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* @return string
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*/
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public static function getClass()
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{
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if (!defined('PHP_VERSION_ID'))
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{
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$version = explode('.', PHP_VERSION);
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define('PHP_VERSION_ID', ($version[0] * 10000 + $version[1] * 100 + $version[2]));
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}
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$class = 'MySQL';
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if (extension_loaded('mysql') && PHP_VERSION_ID < 50500)
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$class = 'MySQL';
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elseif (extension_loaded('mysqli') && (PHP_VERSION_ID < 50300 || extension_loaded('mysqlnd')))
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$class = 'DbMySQLi';
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elseif (PHP_VERSION_ID >= 50200 && extension_loaded('pdo_mysql'))
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$class = 'DbPDO';
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return $class;
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}
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/**
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* Instantiate database connection
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*
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* @param string $server Server address
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* @param string $user User login
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* @param string $password User password
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* @param string $database Database name
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* @param bool $connect If false, don't connect in constructor (since 1.5.0)
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*/
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public function __construct($server, $user, $password, $database, $connect = true)
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{
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$this->server = $server;
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$this->user = $user;
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$this->password = $password;
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$this->database = $database;
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$this->is_cache_enabled = (defined('_PS_CACHE_ENABLED_')) ? _PS_CACHE_ENABLED_ : false;
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if (!defined('_PS_DEBUG_SQL_'))
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define('_PS_DEBUG_SQL_', false);
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if (!defined('_PS_MAGIC_QUOTES_GPC_'))
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define('_PS_MAGIC_QUOTES_GPC_', get_magic_quotes_gpc());
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if ($connect)
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$this->connect();
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}
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/**
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* Close connection to database
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*/
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public function __destruct()
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{
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if ($this->link)
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$this->disconnect();
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}
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/**
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* @deprecated 1.5.0 use insert() or update() method instead
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*/
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public function autoExecute($table, $data, $type, $where = '', $limit = 0, $use_cache = true, $use_null = false)
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{
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$type = strtoupper($type);
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switch ($type)
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{
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case 'INSERT' :
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return $this->insert($table, $data, $use_null, $use_cache, Db::INSERT, false);
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case 'INSERT IGNORE' :
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return $this->insert($table, $data, $use_null, $use_cache, Db::INSERT_IGNORE, false);
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case 'REPLACE' :
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return $this->insert($table, $data, $use_null, $use_cache, Db::REPLACE, false);
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case 'UPDATE' :
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return $this->update($table, $data, $where, $limit, $use_null, $use_cache, false);
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default :
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Tools14::displayError('Wrong argument (miss type) in Db::autoExecute()');
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exit();
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break;
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}
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}
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/**
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* Filter SQL query within a blacklist
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*
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* @param string $table Table where insert/update data
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* @param string $values Data to insert/update
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* @param string $type INSERT or UPDATE
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* @param string $where WHERE clause, only for UPDATE (optional)
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* @param int $limit LIMIT clause (optional)
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* @return mixed|boolean SQL query result
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*/
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public function autoExecuteWithNullValues($table, $values, $type, $where = '', $limit = 0)
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{
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return $this->autoExecute($table, $values, $type, $where, $limit, 0, true);
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}
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/**
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* Execute a query and get result ressource
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*
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* @param string $sql
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* @return mixed
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*/
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public function query($sql)
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{
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if ($sql instanceof DbQuery)
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$sql = $sql->build();
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$this->result = $this->_query($sql);
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if (_PS_DEBUG_SQL_)
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$this->displayError($sql);
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return $this->result;
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}
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/**
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* Execute an INSERT query
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*
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* @param string $table Table name without prefix
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* @param array $data Data to insert as associative array. If $data is a list of arrays, multiple insert will be done
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* @param bool $null_values If we want to use NULL values instead of empty quotes
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* @param bool $use_cache
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* @param int $type Must be Db::INSERT or Db::INSERT_IGNORE or Db::REPLACE
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* @param bool $add_prefix Add or not _DB_PREFIX_ before table name
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* @return bool
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*/
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public function insert($table, $data, $null_values = false, $use_cache = true, $type = Db::INSERT, $add_prefix = true)
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{
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if (!$data && !$null_values)
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return true;
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if ($add_prefix)
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$table = _DB_PREFIX_.$table;
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if ($type == Db::INSERT)
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$insert_keyword = 'INSERT';
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else if ($type == Db::INSERT_IGNORE)
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$insert_keyword = 'INSERT IGNORE';
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else if ($type == Db::REPLACE)
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$insert_keyword = 'REPLACE';
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else
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{
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Tools14::displayError('Bad keyword, must be Db::INSERT or Db::INSERT_IGNORE or Db::REPLACE');
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exit();
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}
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// Check if $data is a list of row
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$current = current($data);
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if (!is_array($current) || isset($current['type']))
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$data = array($data);
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$keys = array();
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$values_stringified = array();
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foreach ($data as $row_data)
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{
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$values = array();
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foreach ($row_data as $key => $value)
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{
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if (isset($keys_stringified))
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{
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// Check if row array mapping are the same
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if (!in_array("`$key`", $keys))
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{
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Tools14::displayError('Keys form $data subarray don\'t match');
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exit();
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}
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}
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else
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$keys[] = "`$key`";
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if (!is_array($value))
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$value = array('type' => 'text', 'value' => $value);
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if ($value['type'] == 'sql')
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$values[] = $value['value'];
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else
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$values[] = $null_values && ($value['value'] === '' || is_null($value['value'])) ? 'NULL' : "'{$value['value']}'";
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}
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$keys_stringified = implode(', ', $keys);
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$values_stringified[] = '('.implode(', ', $values).')';
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}
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$sql = $insert_keyword.' INTO `'.$table.'` ('.$keys_stringified.') VALUES '.implode(', ', $values_stringified);
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return (bool)$this->q($sql, $use_cache);
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}
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/**
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* @param string $table Table name without prefix
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* @param array $data Data to insert as associative array. If $data is a list of arrays, multiple insert will be done
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* @param string $where WHERE condition
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* @param int $limit
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* @param bool $null_values If we want to use NULL values instead of empty quotes
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* @param bool $use_cache
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* @param bool $add_prefix Add or not _DB_PREFIX_ before table name
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* @return bool
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*/
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public function update($table, $data, $where = '', $limit = 0, $null_values = false, $use_cache = true, $add_prefix = true)
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{
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if (!$data)
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return true;
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if ($add_prefix)
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$table = _DB_PREFIX_.$table;
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$sql = 'UPDATE `'.$table.'` SET ';
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foreach ($data as $key => $value)
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{
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if (!is_array($value))
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$value = array('type' => 'text', 'value' => $value);
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if ($value['type'] == 'sql')
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$sql .= "`$key` = {$value['value']},";
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else
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$sql .= ($null_values && ($value['value'] === '' || is_null($value['value']))) ? "`$key` = NULL," : "`$key` = '{$value['value']}',";
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}
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$sql = rtrim($sql, ',');
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if ($where)
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$sql .= ' WHERE '.$where;
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if ($limit)
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$sql .= ' LIMIT '.(int)$limit;
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return (bool)$this->q($sql, $use_cache);
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}
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/**
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* Execute a DELETE query
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*
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* @param string $table Name of the table to delete
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* @param string $where WHERE clause on query
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* @param int $limit Number max of rows to delete
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* @param bool $use_cache Use cache or not
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* @param bool $add_prefix Add or not _DB_PREFIX_ before table name
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* @return bool
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*/
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public function delete($table, $where = '', $limit = 0, $use_cache = true, $add_prefix = true)
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{
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if (_DB_PREFIX_ && !preg_match('#^'._DB_PREFIX_.'#i', $table) && $add_prefix)
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$table = _DB_PREFIX_.$table;
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$this->result = false;
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$sql = 'DELETE FROM `'.bqSQL($table).'`'.($where ? ' WHERE '.$where : '').($limit ? ' LIMIT '.(int)$limit : '');
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$res = $this->query($sql);
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if ($use_cache && $this->is_cache_enabled)
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Cache::getInstance()->deleteQuery($sql);
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return (bool)$res;
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}
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/**
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* Execute a query
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*
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* @param string $sql
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* @param bool $use_cache
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* @return bool
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*/
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public function execute($sql, $use_cache = true)
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{
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if ($sql instanceof DbQuery)
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$sql = $sql->build();
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if (trim($sql) == false)
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return ($this->result = true);
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$this->result = $this->query($sql);
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if ($use_cache && $this->is_cache_enabled)
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Cache::getInstance()->deleteQuery($sql);
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return (bool)$this->result;
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}
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/**
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* ExecuteS return the result of $sql as array
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*
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* @param string $sql query to execute
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* @param boolean $array return an array instead of a mysql_result object (deprecated since 1.5.0, use query method instead)
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* @param bool $use_cache if query has been already executed, use its result
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* @return array or result object
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*/
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public function executeS($sql, $array = true, $use_cache = true)
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{
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if ($sql instanceof DbQuery)
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$sql = $sql->build();
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// This method must be used only with queries which display results
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if (!preg_match('#^\s*\(?\s*(select|show|explain|describe|desc)\s#i', $sql))
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{
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if (defined('_PS_MODE_DEV_') && _PS_MODE_DEV_)
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{
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Tools14::displayError('Db->executeS() must be used only with select, show, explain or describe queries');
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exit();
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}
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return $this->execute($sql, $use_cache);
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}
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$this->result = false;
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$this->last_query = $sql;
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if ($use_cache && $this->is_cache_enabled && $array && ($result = Cache::getInstance()->get(md5($sql))))
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{
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$this->last_cached = true;
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return $result;
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}
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$this->result = $this->query($sql);
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if (!$this->result)
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return false;
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$this->last_cached = false;
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if (!$array)
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return $this->result;
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$result_array = array();
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while ($row = $this->nextRow($this->result))
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$result_array[] = $row;
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if ($use_cache && $this->is_cache_enabled)
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Cache::getInstance()->setQuery($sql, $result_array);
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return $result_array;
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}
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/**
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* getRow return an associative array containing the first row of the query
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* This function automatically add "limit 1" to the query
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*
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* @param mixed $sql the select query (without "LIMIT 1")
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* @param bool $use_cache find it in cache first
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* @return array associative array of (field=>value)
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*/
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public function getRow($sql, $use_cache = true)
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{
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if ($sql instanceof DbQuery)
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$sql = $sql->build();
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$sql .= ' LIMIT 1';
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$this->result = false;
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$this->last_query = $sql;
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if ($use_cache && $this->is_cache_enabled && ($result = Cache::getInstance()->get(md5($sql))))
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{
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$this->last_cached = true;
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return $result;
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}
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$this->result = $this->query($sql);
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if (!$this->result)
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return false;
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$this->last_cached = false;
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$result = $this->nextRow($this->result);
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if ($use_cache && $this->is_cache_enabled)
|
|
Cache::getInstance()->setQuery($sql, $result);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* getValue return the first item of a select query.
|
|
*
|
|
* @param mixed $sql
|
|
* @param bool $use_cache
|
|
* @return mixed
|
|
*/
|
|
public function getValue($sql, $use_cache = true)
|
|
{
|
|
if ($sql instanceof DbQuery)
|
|
$sql = $sql->build();
|
|
|
|
if (!$result = $this->getRow($sql, $use_cache))
|
|
return false;
|
|
return array_shift($result);
|
|
}
|
|
|
|
/**
|
|
* Get number of rows for last result
|
|
*
|
|
* @return int
|
|
*/
|
|
public function numRows()
|
|
{
|
|
if (!$this->last_cached && $this->result)
|
|
{
|
|
$nrows = $this->_numRows($this->result);
|
|
if ($this->is_cache_enabled)
|
|
Cache::getInstance()->set(md5($this->last_query).'_nrows', $nrows);
|
|
return $nrows;
|
|
}
|
|
else if ($this->is_cache_enabled && $this->last_cached)
|
|
return Cache::getInstance()->get(md5($this->last_query).'_nrows');
|
|
}
|
|
|
|
/**
|
|
*
|
|
* Execute a query
|
|
*
|
|
* @param string $sql
|
|
* @param bool $use_cache
|
|
* @return mixed $result
|
|
*/
|
|
protected function q($sql, $use_cache = true)
|
|
{
|
|
if ($sql instanceof DbQuery)
|
|
$sql = $sql->build();
|
|
|
|
$this->result = false;
|
|
$result = $this->query($sql);
|
|
if ($use_cache && $this->is_cache_enabled)
|
|
Cache::getInstance()->deleteQuery($sql);
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Display last SQL error
|
|
*
|
|
* @param bool $sql
|
|
*/
|
|
public function displayError($sql = false)
|
|
{
|
|
global $webservice_call;
|
|
|
|
$errno = $this->getNumberError();
|
|
if ($webservice_call && $errno)
|
|
{
|
|
$dbg = debug_backtrace();
|
|
WebserviceRequest::getInstance()->setError(500, '[SQL Error] '.$this->getMsgError().'. From '.(isset($dbg[3]['class']) ? $dbg[3]['class'] : '').'->'.$dbg[3]['function'].'() Query was : '.$sql, 97);
|
|
}
|
|
else if (_PS_DEBUG_SQL_ && $errno && !defined('PS_INSTALLATION_IN_PROGRESS'))
|
|
{
|
|
if ($sql)
|
|
Tools14::displayError($this->getMsgError().'<br /><br /><pre>'.$sql.'</pre>');
|
|
Tools14::displayError($this->getMsgError());
|
|
exit();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sanitize data which will be injected into SQL query
|
|
*
|
|
* @param string $string SQL data which will be injected into SQL query
|
|
* @param boolean $html_ok Does data contain HTML code ? (optional)
|
|
* @return string Sanitized data
|
|
*/
|
|
public function escape($string, $html_ok = false)
|
|
{
|
|
if (_PS_MAGIC_QUOTES_GPC_)
|
|
$string = stripslashes($string);
|
|
if (!is_numeric($string))
|
|
{
|
|
$string = $this->_escape($string);
|
|
if (!$html_ok)
|
|
$string = strip_tags(Tools14::nl2br($string));
|
|
}
|
|
|
|
return $string;
|
|
}
|
|
|
|
/**
|
|
* Try a connection to te database
|
|
*
|
|
* @param string $server Server address
|
|
* @param string $user Login for database connection
|
|
* @param string $pwd Password for database connection
|
|
* @param string $db Database name
|
|
* @param bool $new_db_link
|
|
* @param bool $engine
|
|
* @return int
|
|
*/
|
|
public static function checkConnection($server, $user, $pwd, $db, $new_db_link = true, $engine = null, $timeout = 5)
|
|
{
|
|
return call_user_func_array(array(Db::getClass(), 'tryToConnect'), array($server, $user, $pwd, $db, $new_db_link, $engine, $timeout));
|
|
}
|
|
|
|
/**
|
|
* Try a connection to te database
|
|
*
|
|
* @param string $server Server address
|
|
* @param string $user Login for database connection
|
|
* @param string $pwd Password for database connection
|
|
* @return int
|
|
*/
|
|
public static function checkEncoding($server, $user, $pwd)
|
|
{
|
|
return call_user_func_array(array(Db::getClass(), 'tryUTF8'), array($server, $user, $pwd));
|
|
}
|
|
|
|
/**
|
|
* Try a connection to the database and check if at least one table with same prefix exists
|
|
*
|
|
* @param string $server Server address
|
|
* @param string $user Login for database connection
|
|
* @param string $pwd Password for database connection
|
|
* @param string $db Database name
|
|
* @param string $prefix Tables prefix
|
|
* @return bool
|
|
*/
|
|
public static function hasTableWithSamePrefix($server, $user, $pwd, $db, $prefix)
|
|
{
|
|
return call_user_func_array(array(Db::getClass(), 'hasTableWithSamePrefix'), array($server, $user, $pwd, $db, $prefix));
|
|
}
|
|
|
|
public static function checkCreatePrivilege($server, $user, $pwd, $db, $prefix, $engine)
|
|
{
|
|
return call_user_func_array(array(Db::getClass(), 'checkCreatePrivilege'), array($server, $user, $pwd, $db, $prefix, $engine));
|
|
}
|
|
|
|
/**
|
|
* @deprecated 1.5.0
|
|
*/
|
|
public static function s($sql, $use_cache = true)
|
|
{
|
|
return Db::getInstance()->executeS($sql, true, $use_cache);
|
|
}
|
|
|
|
/**
|
|
* @deprecated 1.5.0
|
|
*/
|
|
public static function ps($sql, $use_cache = 1)
|
|
{
|
|
$ret = Db::s($sql, $use_cache);
|
|
p($ret);
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* @deprecated 1.5.0
|
|
*/
|
|
public static function ds($sql, $use_cache = 1)
|
|
{
|
|
Db::s($sql, $use_cache);
|
|
die();
|
|
}
|
|
} |