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<?php
/*
$Id: shopping_cart.php,v 1.2 2004/08/25 22:40:04 akhan Exp $
osCommerce, Open Source E-Commerce Solutions
http://www.oscommerce.com
Copyright (c) 2003 osCommerce
Released under the GNU General Public License
*/
class shoppingCart {
var $contents, $total, $weight, $cartID, $content_type;
function shoppingCart() {
$this->reset();
}
function restore_contents() {
global $customer_id;
if (!tep_session_is_registered('customer_id')) return false;
// insert current cart contents in database
if (is_array($this->contents)) {
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
$qty = $this->contents[$products_id]['qty'];
$product_query = tep_db_query("select products_id from " . TABLE_CUSTOMERS_BASKET . " where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products_id) . "'");
if (!tep_db_num_rows($product_query)) {
tep_db_query("insert into " . TABLE_CUSTOMERS_BASKET . " (customers_id, products_id, customers_basket_quantity, customers_basket_date_added) values ('" . (int)$customer_id . "', '" . tep_db_input($products_id) . "', '" . $qty . "', '" . date('Ymd') . "')");
if (isset($this->contents[$products_id]['attributes'])) {
reset($this->contents[$products_id]['attributes']);
while (list($option, $value) = each($this->contents[$products_id]['attributes'])) {
tep_db_query("insert into " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " (customers_id, products_id, products_options_id, products_options_value_id) values ('" . (int)$customer_id . "', '" . tep_db_input($products_id) . "', '" . (int)$option . "', '" . (int)$value . "')");
}
}
} else {
tep_db_query("update " . TABLE_CUSTOMERS_BASKET . " set customers_basket_quantity = '" . $qty . "' where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products_id) . "'");
}
}
}
// reset per-session cart contents, but not the database contents
$this->reset(false);
$products_query = tep_db_query("select products_id, customers_basket_quantity from " . TABLE_CUSTOMERS_BASKET . " where customers_id = '" . (int)$customer_id . "'");
while ($products = tep_db_fetch_array($products_query)) {
$this->contents[$products['products_id']] = array('qty' => $products['customers_basket_quantity']);
// attributes
$attributes_query = tep_db_query("select products_options_id, products_options_value_id from " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products['products_id']) . "'");
while ($attributes = tep_db_fetch_array($attributes_query)) {
$this->contents[$products['products_id']]['attributes'][$attributes['products_options_id']] = $attributes['products_options_value_id'];
}
}
$this->cleanup();
}
function reset($reset_database = false) {
global $customer_id;
$this->contents = array();
$this->total = 0;
$this->weight = 0;
$this->content_type = false;
if (tep_session_is_registered('customer_id') && ($reset_database == true)) {
tep_db_query("delete from " . TABLE_CUSTOMERS_BASKET . " where customers_id = '" . (int)$customer_id . "'");
tep_db_query("delete from " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " where customers_id = '" . (int)$customer_id . "'");
}
unset($this->cartID);
if (tep_session_is_registered('cartID')) tep_session_unregister('cartID');
}
function add_cart($products_id, $qty = '1', $attributes = '', $notify = true) {
global $new_products_id_in_cart, $customer_id;
$products_id = tep_get_uprid($products_id, $attributes);
if ($notify == true) {
$new_products_id_in_cart = $products_id;
tep_session_register('new_products_id_in_cart');
}
if ($this->in_cart($products_id)) {
$this->update_quantity($products_id, $qty, $attributes);
} else {
$this->contents[] = array($products_id);
$this->contents[$products_id] = array('qty' => $qty);
// insert into database
if (tep_session_is_registered('customer_id')) tep_db_query("insert into " . TABLE_CUSTOMERS_BASKET . " (customers_id, products_id, customers_basket_quantity, customers_basket_date_added) values ('" . (int)$customer_id . "', '" . tep_db_input($products_id) . "', '" . $qty . "', '" . date('Ymd') . "')");
if (is_array($attributes)) {
reset($attributes);
while (list($option, $value) = each($attributes)) {
$this->contents[$products_id]['attributes'][$option] = $value;
// insert into database
if (tep_session_is_registered('customer_id')) tep_db_query("insert into " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " (customers_id, products_id, products_options_id, products_options_value_id) values ('" . (int)$customer_id . "', '" . tep_db_input($products_id) . "', '" . (int)$option . "', '" . (int)$value . "')");
}
}
}
$this->cleanup();
// assign a temporary unique ID to the order contents to prevent hack attempts during the checkout procedure
$this->cartID = $this->generate_cart_id();
}
function update_quantity($products_id, $quantity = '', $attributes = '') {
global $customer_id;
if (empty($quantity)) return true; // nothing needs to be updated if theres no quantity, so we return true..
$this->contents[$products_id] = array('qty' => $quantity);
// update database
if (tep_session_is_registered('customer_id')) tep_db_query("update " . TABLE_CUSTOMERS_BASKET . " set customers_basket_quantity = '" . $quantity . "' where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products_id) . "'");
if (is_array($attributes)) {
reset($attributes);
while (list($option, $value) = each($attributes)) {
$this->contents[$products_id]['attributes'][$option] = $value;
// update database
if (tep_session_is_registered('customer_id')) tep_db_query("update " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " set products_options_value_id = '" . (int)$value . "' where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products_id) . "' and products_options_id = '" . (int)$option . "'");
}
}
}
function cleanup() {
global $customer_id;
reset($this->contents);
while (list($key,) = each($this->contents)) {
if ($this->contents[$key]['qty'] < 1) {
unset($this->contents[$key]);
// remove from database
if (tep_session_is_registered('customer_id')) {
tep_db_query("delete from " . TABLE_CUSTOMERS_BASKET . " where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($key) . "'");
tep_db_query("delete from " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($key) . "'");
}
}
}
}
function count_contents() { // get total number of items in cart
$total_items = 0;
if (is_array($this->contents)) {
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
$total_items += $this->get_quantity($products_id);
}
}
return $total_items;
}
function get_quantity($products_id) {
if (isset($this->contents[$products_id])) {
return $this->contents[$products_id]['qty'];
} else {
return 0;
}
}
function in_cart($products_id) {
if (isset($this->contents[$products_id])) {
return true;
} else {
return false;
}
}
function remove($products_id) {
global $customer_id;
unset($this->contents[$products_id]);
// remove from database
if (tep_session_is_registered('customer_id')) {
tep_db_query("delete from " . TABLE_CUSTOMERS_BASKET . " where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products_id) . "'");
tep_db_query("delete from " . TABLE_CUSTOMERS_BASKET_ATTRIBUTES . " where customers_id = '" . (int)$customer_id . "' and products_id = '" . tep_db_input($products_id) . "'");
}
// assign a temporary unique ID to the order contents to prevent hack attempts during the checkout procedure
$this->cartID = $this->generate_cart_id();
}
function remove_all() {
$this->reset();
}
function get_product_id_list() {
$product_id_list = '';
if (is_array($this->contents)) {
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
$product_id_list .= ', ' . $products_id;
}
}
return substr($product_id_list, 2);
}
function calculate() {
$this->total = 0;
$this->weight = 0;
if (!is_array($this->contents)) return 0;
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
$qty = $this->contents[$products_id]['qty'];
// products price
$product_query = tep_db_query("select products_id, products_price, products_tax_class_id, products_weight from " . TABLE_PRODUCTS . " where products_id = '" . (int)$products_id . "'");
if ($product = tep_db_fetch_array($product_query)) {
$prid = $product['products_id'];
$products_tax = tep_get_tax_rate($product['products_tax_class_id']);
$products_price = $product['products_price'];
$products_weight = $product['products_weight'];
$specials_query = tep_db_query("select specials_new_products_price from " . TABLE_SPECIALS . " where products_id = '" . (int)$prid . "' and status = '1'");
if (tep_db_num_rows ($specials_query)) {
$specials = tep_db_fetch_array($specials_query);
$products_price = $specials['specials_new_products_price'];
}
$this->total += tep_add_tax($products_price, $products_tax) * $qty;
$this->weight += ($qty * $products_weight);
}
// attributes price
if (isset($this->contents[$products_id]['attributes'])) {
reset($this->contents[$products_id]['attributes']);
while (list($option, $value) = each($this->contents[$products_id]['attributes'])) {
$attribute_price_query = tep_db_query("select options_values_price, price_prefix from " . TABLE_PRODUCTS_ATTRIBUTES . " where products_id = '" . (int)$prid . "' and options_id = '" . (int)$option . "' and options_values_id = '" . (int)$value . "'");
$attribute_price = tep_db_fetch_array($attribute_price_query);
if ($attribute_price['price_prefix'] == '+') {
$this->total += $qty * tep_add_tax($attribute_price['options_values_price'], $products_tax);
} else {
$this->total -= $qty * tep_add_tax($attribute_price['options_values_price'], $products_tax);
}
}
}
}
}
function attributes_price($products_id) {
$attributes_price = 0;
if (isset($this->contents[$products_id]['attributes'])) {
reset($this->contents[$products_id]['attributes']);
while (list($option, $value) = each($this->contents[$products_id]['attributes'])) {
$attribute_price_query = tep_db_query("select options_values_price, price_prefix from " . TABLE_PRODUCTS_ATTRIBUTES . " where products_id = '" . (int)$products_id . "' and options_id = '" . (int)$option . "' and options_values_id = '" . (int)$value . "'");
$attribute_price = tep_db_fetch_array($attribute_price_query);
if ($attribute_price['price_prefix'] == '+') {
$attributes_price += $attribute_price['options_values_price'];
} else {
$attributes_price -= $attribute_price['options_values_price'];
}
}
}
return $attributes_price;
}
function get_products() {
global $languages_id;
if (!is_array($this->contents)) return false;
$products_array = array();
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
$products_query = tep_db_query("select p.products_id, pd.products_name, p.products_model, p.products_image, p.products_price, p.products_weight, p.products_tax_class_id from " . TABLE_PRODUCTS . " p, " . TABLE_PRODUCTS_DESCRIPTION . " pd where p.products_id = '" . (int)$products_id . "' and pd.products_id = p.products_id and pd.language_id = '" . (int)$languages_id . "'");
if ($products = tep_db_fetch_array($products_query)) {
$prid = $products['products_id'];
$products_price = $products['products_price'];
$specials_query = tep_db_query("select specials_new_products_price from " . TABLE_SPECIALS . " where products_id = '" . (int)$prid . "' and status = '1'");
if (tep_db_num_rows($specials_query)) {
$specials = tep_db_fetch_array($specials_query);
$products_price = $specials['specials_new_products_price'];
}
$products_array[] = array('id' => $products_id,
'name' => $products['products_name'],
'model' => $products['products_model'],
'image' => $products['products_image'],
'price' => $products_price,
'quantity' => $this->contents[$products_id]['qty'],
'weight' => $products['products_weight'],
'final_price' => ($products_price + $this->attributes_price($products_id)),
'tax_class_id' => $products['products_tax_class_id'],
'attributes' => (isset($this->contents[$products_id]['attributes']) ? $this->contents[$products_id]['attributes'] : ''));
}
}
return $products_array;
}
function show_total() {
$this->calculate();
return $this->total;
}
function show_weight() {
$this->calculate();
return $this->weight;
}
function generate_cart_id($length = 5) {
return tep_create_random_value($length, 'digits');
}
function get_content_type() {
$this->content_type = false;
if ( (DOWNLOAD_ENABLED == 'true') && ($this->count_contents() > 0) ) {
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
if (isset($this->contents[$products_id]['attributes'])) {
reset($this->contents[$products_id]['attributes']);
while (list(, $value) = each($this->contents[$products_id]['attributes'])) {
$virtual_check_query = tep_db_query("select count(*) as total from " . TABLE_PRODUCTS_ATTRIBUTES . " pa, " . TABLE_PRODUCTS_ATTRIBUTES_DOWNLOAD . " pad where pa.products_id = '" . (int)$products_id . "' and pa.options_values_id = '" . (int)$value . "' and pa.products_attributes_id = pad.products_attributes_id");
$virtual_check = tep_db_fetch_array($virtual_check_query);
if ($virtual_check['total'] > 0) {
switch ($this->content_type) {
case 'physical':
$this->content_type = 'mixed';
return $this->content_type;
break;
default:
$this->content_type = 'virtual';
break;
}
} else {
switch ($this->content_type) {
case 'virtual':
$this->content_type = 'mixed';
return $this->content_type;
break;
default:
$this->content_type = 'physical';
break;
}
}
}
} else {
switch ($this->content_type) {
case 'virtual':
$this->content_type = 'mixed';
return $this->content_type;
break;
default:
$this->content_type = 'physical';
break;
}
}
}
} else {
$this->content_type = 'physical';
}
return $this->content_type;
}
function unserialize($broken) {
for(reset($broken);$kv=each($broken);) {
$key=$kv['key'];
if (gettype($this->$key)!="user function")
$this->$key=$kv['value'];
}
}
}
?>