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-rw-r--r--system/libraries/Cart.php59
1 files changed, 53 insertions, 6 deletions
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index a0e1bb91e..717ccd9fb 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -41,6 +41,7 @@ class CI_Cart {
// These are the regular expression rules that we use to validate the product ID and product name
var $product_id_rules = '\.a-z0-9_-'; // alpha-numeric, dashes, underscores, or periods
var $product_name_rules = '\.\:\-_ a-z0-9'; // alpha-numeric, dashes, underscores, colons or periods
+ var $product_name_safe = true; // only allow safe product names
// Private variables. Do not change!
var $CI;
@@ -195,7 +196,7 @@ class CI_Cart {
// Validate the product name. It can only be alpha-numeric, dashes, underscores, colons or periods.
// Note: These can be user-specified by setting the $this->product_name_rules variable.
- if ( ! preg_match("/^[".$this->product_name_rules."]+$/i", $items['name']))
+ if ( $this->product_name_safe && ! preg_match("/^[".$this->product_name_rules."]+$/i", $items['name']))
{
log_message('error', 'An invalid name was submitted as the product name: '.$items['name'].' The name can only contain alpha-numeric characters, dashes, underscores, colons, and spaces');
return FALSE;
@@ -242,7 +243,18 @@ class CI_Cart {
// --------------------------------------------------------------------
// Now that we have our unique "row ID", we'll add our cart items to the master array
-
+ // grab quantity if it's already there and add it on
+ if (isset($this->_cart_contents[$rowid]['qty']))
+ {
+ // set our old quantity
+ $old_quantity = (int)$this->_cart_contents[$rowid]['qty'];
+ }
+ else
+ {
+ // we have no old quantity but - we don't want to throw an error
+ $old_quantity = 0;
+ }
+
// let's unset this first, just to make sure our index contains only the data from this submission
unset($this->_cart_contents[$rowid]);
@@ -254,7 +266,10 @@ class CI_Cart {
{
$this->_cart_contents[$rowid][$key] = $val;
}
-
+
+ // add old quantity back in
+ $this->_cart_contents[$rowid]['qty'] = ($this->_cart_contents[$rowid]['qty'] + $old_quantity);
+
// Woot!
return $rowid;
}
@@ -435,7 +450,29 @@ class CI_Cart {
{
return $this->_cart_contents['cart_total'];
}
-
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Remove Item
+ *
+ * Removes an item from the cart
+ *
+ * @access public
+ * @return boolean
+ */
+ public function remove($rowid)
+ {
+ // just do an unset
+ unset($this->_cart_contents[$rowid]);
+
+ // we need to save the cart now we've made our changes
+ $this->_save_cart();
+
+ // completed
+ return true;
+ }
+
// --------------------------------------------------------------------
/**
@@ -461,9 +498,19 @@ class CI_Cart {
* @access public
* @return array
*/
- function contents()
+ function contents($newest_first = false)
{
- $cart = $this->_cart_contents;
+ // do we want the newest first?
+ if($newest_first)
+ {
+ // reverse the array
+ $cart = array_reverse($this->_cart_contents);
+ }
+ else
+ {
+ // just added first to last
+ $cart = $this->_cast_contents;
+ }
// Remove these so they don't create a problem when showing the cart table
unset($cart['total_items']);