Table used:
TABLE_CUSTOMERS_BASKET – customers_basket
Structure:
customers_basket_id int(11) No None auto_increment
customers_id int(11) No 0
products_id tinytext latin1_swedish_ci No None
customers_basket_quantity float No 0
final_price decimal(15,4) No 0.0000
customers_basket_date_added varchar(8)
TABLE_CUSTOMERS_BASKET_ATTRIBUTES – customers_basket_attributes
Structure:
customers_basket_attributes_id int(11) No None auto_increment
customers_id int(11) No 0
products_id tinytext latin1_swedish_ci No None
products_options_id varchar(64) latin1_swedish_ci No 0
products_options_value_id int(11) No 0
products_options_value_text blob BINARY Yes
products_options_sort_order text
How it works
1) includes/auto_loaders/config.core.php
Here is initialized cart class
Look for:
$autoLoadConfig[80][] = array(‘autoType’=>’classInstantiate’,
‘className’=>’shoppingCart’,
‘objectName’=>’cart’,
‘checkInstantiated’=>true,
‘classSession’=>true);
2) includes/classes/shopping_cart.php
Here is defined cart class -auto loaded see 1
3) includes/templates/olala1/templates/tpl_product_info_display.php
This is the place where all data are send when user ADD TO CART.
Variable are sent using:
- POST mechanism: all details about products
- GET mechanism: “action” which will fire the add to cart procedure
The line will tell you all about this is :
<form name=”cart_quantity” action=”http://www.yourshop.com/essential-gear-cylinders-c-1_18/cylinder-only-s-80-cubic-foot-11-1-ltr-207-bar-p-4418:7dfe81c126653b69bc6c02f15dd3c7f1?action=add_product” method=”post” enctype=”multipart/form-data”>
4) includes/init_includes/init_cart_handler.php
Based on action value it take the control and execute spcific actions.
It this case actionAddProduct defined in cart class is executed:
$_SESSION['cart']->actionAddProduct($goto, $parameters);
If user is logged in, cart tables are populated.
If the user is not logged in cart session variable is pupulated.
267 $this->contents[] = array($products_id);
$this->contents[$products_id] = array(‘qty’ => (float)$qty);
Once action is executed, in /includes/modules/pages/shoppingcart/header.php
59 $flagAnyOutOfStock = false;
$products = $_SESSION['cart']->get_products();
which is taken from includes/classes/shopping_cart.php
#1100 function get_products($check_for_valid_cart = false) {
If user is logged in will be executed:
if($_SESSION['customer_id']) {
$customer_group_query = “select gp.group_name
from ” . TABLE_CUSTOMERS . ” cu
left join ” . TABLE_GROUP_PRICING . ” gp on cu.customers_group_pricing=gp.group_id
where cu.customers_id = ” . $_SESSION['customer_id'];
if($customer_group = $db->Execute($customer_group_query)) {
$customers_group=$customer_group->fields['group_name'];
}
}
If the user is not logged will be executed:.
#1128 $products_array = array();
reset($this->contents);
while (list($products_id, ) = each($this->contents)) {
“contents” is the session variable initialised at #267.
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