File Source for Basket.class.php

<?php
/**
* Содержит класс Basket
*
* @package energine
* @subpackage shop
* @author dr.Pavka
* @copyright ColoCall 2006
* @version $Id$
*/
//require_once('core/framework/DBWorker.class.php');
//require_once('core/modules/shop/components/Discounts.class.php');
//require_once('core/modules/shop/components/CurrencyConverter.class.php');
/**
* Корзина с выбранными продуктами
*
* @package energine
* @subpackage shop
* @author dr.Pavka
*/
class Basket extends DBWorker {
/**
* @access private
* @static
* @var Basket единый для всей системы экземпляр класса Basket
*/
private static $instance;
/**
* Имя таблицы содержащей данные корзины
*
* @var string
* @access private
*/
private $tableName;
/**
* Идентификатор пользовательского сеанса
*
* @var int
* @access private
*/
private $id;
/**
* Содержание корзины
*
* @var array
* @access private
*/
private $contents = null;
/**
* @access private
* @var Discounts скидки
*/
//private $discounts;
/**
* Конструктор класса
*
* @access public
*/
public function __construct() {
parent::__construct();
$this->tableName = 'shop_basket';
$this->id = UserSession::getInstance()->getID();
//$this->discounts = Discounts::getInstance();
$this->refresh();
}
private function refresh(){
if(isset($_POST['basket'])){
$basketData = $_POST['basket'];
if(isset($basketData['add']) && is_array($basketData['add'])){
foreach($basketData['add'] as $productID => $productCount){
$this->put((int)$productID, (int)$productCount);
}
}
elseif(isset($basketData['delete']) && is_array($basketData['deleteItems'])) {
foreach ($basketData['deleteItems'] as $productID) {
$this->takeOut((int)$productID);
}
}
elseif(isset($basketData['update']) && is_array($basketData['update'])){
foreach($basketData['update'] as $productID => $productCount){
$this->update((int)$productID, (int)$productCount);
}
}
}
}
/**
* Возвращает единый для всей системы экземпляр класса UserSession.
*
* @access public
* @static
* @return Basket
*/
public static function getInstance() {
if (!isset(self::$instance)) {
self::$instance = new Basket;
}
return self::$instance;
}
/**
* Возвращает имя таблицы
*
* @return string
* @access protected
*/
protected function getTableName() {
return $this->tableName;
}
/**
* Добавление товара в корзину
*
* @param int идентификатор продукта
* @param int количество позиций
* @return void
* @access public
*/
public function put($productID, $productCount = 1) {
$this->dbh->modifyRequest(
'INSERT INTO '.$this->getTableName().' (product_id, session_id, basket_count) VALUES (%s, %s, %s) '.
'ON DUPLICATE KEY UPDATE basket_count=basket_count+1',
$productID,
$this->id,
$productCount
);
}
/**
* Изменяет количество позиций продукта
*
* @param int идентификатор продукта
* @param int количество позиций
* @return void
* @access public
*/
public function update($productID, $productCount) {
if($productCount) {
$this->dbh->modify(QAL::UPDATE , $this->getTableName(), array('basket_count' => $productCount), array('session_id'=>$this->id, 'product_id'=>$productID));
}
else {
$this->dbh->modify(QAL::DELETE, $this->getTableName(), null, array('product_id' => $productID));
}
}
/**
* Удаляет товар из корзины
*
* @param int идентификатор продукта
* @return void
* @access public
*/
public function takeOut($productID) {
$this->dbh->modify(QAL::DELETE, $this->getTableName(), null, array('session_id'=>$this->id, 'basket_id'=>$productID));
}
/**
* Очищает корзин
*
* @return void
* @access public
*/
public function purify() {
$this->dbh->modify(QAL::DELETE, $this->getTableName(), null, array('session_id'=>$this->id));
}
/**
* Возвращает суммарную стоимость товаров в корзине с учетом скидки.
*
* @return float
* @access public
*/
public function getTotal($withDiscount = false) {
$withDiscount = false;
$contents = $this->getContents();
$summ = 0;
if(is_array($contents)) {
foreach ($contents as $row) {
if ($withDiscount) {
$summ += $this->discounts->calculateCost($row['product_summ']);
}
else {
//inspect($row['product_summ']);
$summ += $row['product_summ'];
}
}
}
$converter = CurrencyConverter::getInstance();
$HRNID = $converter->getCurrent();
return $converter->format($converter->convert($summ, $HRNID, $contents[0]['curr_id']), $HRNID);
}
/**
* Возвращает содержимое корзины
*
* @param bool
* @return array
* @access public
* @see QAL::select()
*/
public function getContents() {
if(is_null($this->contents)){
$result = $this->dbh->selectRequest(
//'SELECT main.*, pt.product_name, ext.product_price, ext.product_price*main.basket_count as product_summ, ext.product_price * (1 - dscnt.dscnt_percent / 100) AS product_summ_with_discount, ext.curr_id, product.product_segment, product.product_code '.
'SELECT main.*, pt.product_name, ext.product_price, ext.product_price*main.basket_count as product_summ, ext.curr_id, product.product_segment, product.product_code '.
'FROM '.$this->getTableName().' main '.
'LEFT JOIN shop_products product ON product.product_id = main.product_id '.
'LEFT JOIN shop_products_translation pt ON pt.product_id = main.product_id '.
'LEFT JOIN shop_product_external_properties ext ON ext.product_code = product.product_code '.
//'LEFT JOIN shop_discounts dscnt ON dscnt.group_id = '.$this->discounts->getDefaultGroup().' '.
'WHERE pt.lang_id = %s AND session_id = %s',
Language::getInstance()->getCurrent(),
$this->id
);
if (is_array($result)) {
$this->contents = $result;
}
else {
$this->contents = false;
}
}
return $this->contents;
}
public function getFormattedContents(){
$contents = $this->getContents();
return ($contents)?array_map(array($this, 'prepare'), $contents):false;
}
/**
* Обработка корзины
*
* @return array
* @access private
*/
private function prepare($row) {
$converter = CurrencyConverter::getInstance();
$HRNID = $converter->getCurrent();
$row['product_price'] = $converter->format($converter->convert($row['product_price'], $HRNID, $row['curr_id']),$HRNID);
$row['product_summ'] = $converter->format($converter->convert($row['product_summ'], $HRNID, $row['curr_id']),$HRNID);
return $row;
}
}

Source for file Basket.class.php