diff options
Diffstat (limited to 'system/libraries/Cart.php')
| -rw-r--r-- | system/libraries/Cart.php | 116 |
1 files changed, 74 insertions, 42 deletions
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php index ca7be555e..79c2b8cdc 100644 --- a/system/libraries/Cart.php +++ b/system/libraries/Cart.php @@ -1,4 +1,4 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * @@ -24,6 +24,7 @@ * @since Version 1.0 * @filesource */ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * Shopping Cart Class @@ -36,19 +37,54 @@ */ class CI_Cart { - // These are the regular expression rules that we use to validate the product ID and product name - public $product_id_rules = '\.a-z0-9_-'; // alpha-numeric, dashes, underscores, or periods - public $product_name_rules = '\.\:\-_ a-z0-9'; // alpha-numeric, dashes, underscores, colons or periods - public $product_name_safe = TRUE; // only allow safe product names + /** + * These are the regular expression rules that we use to validate the product ID and product name + * alpha-numeric, dashes, underscores, or periods + * + * @var string + */ + public $product_id_rules = '\.a-z0-9_-'; + + /** + * These are the regular expression rules that we use to validate the product ID and product name + * alpha-numeric, dashes, underscores, colons or periods + * + * @var string + */ + public $product_name_rules = '\.\:\-_ a-z0-9'; + /** + * only allow safe product names + * + * @var bool + */ + public $product_name_safe = TRUE; + + // -------------------------------------------------------------------------- // Protected variables. Do not change! + // -------------------------------------------------------------------------- + + /** + * Reference to CodeIgniter instance + * + * @var object + */ protected $CI; + + /** + * Contents of the cart + * + * @var array + */ protected $_cart_contents = array(); /** * Shopping Class Constructor * * The constructor loads the Session class, used to store the shopping cart contents. + * + * @param array + * @return void */ public function __construct($params = array()) { @@ -63,7 +99,7 @@ class CI_Cart { // Grab the shopping cart array from the session table $this->_cart_contents = $this->CI->session->userdata('cart_contents'); - if ($this->_cart_contents === FALSE) + if ($this->_cart_contents === NULL) { // No cart exists so we'll set some base values $this->_cart_contents = array('cart_total' => 0, 'total_items' => 0); @@ -146,7 +182,7 @@ class CI_Cart { // -------------------------------------------------------------------- // Does the $items array contain an id, quantity, price, and name? These are required - if ( ! isset($items['id']) OR ! isset($items['qty']) OR ! isset($items['price']) OR ! isset($items['name'])) + if ( ! isset($items['id'], $items['qty'], $items['price'], $items['name'])) { log_message('error', 'The cart array must contain a product ID, quantity, price, and name.'); return FALSE; @@ -158,7 +194,7 @@ class CI_Cart { $items['qty'] = (float) $items['qty']; // If the quantity is zero or blank there's nothing for us to do - if ( ! is_numeric($items['qty']) OR $items['qty'] == 0) + if ($items['qty'] == 0) { return FALSE; } @@ -189,15 +225,6 @@ class CI_Cart { // Prep the price. Remove leading zeros and anything that isn't a number or decimal point. $items['price'] = (float) $items['price']; - // Is the price a valid number? - if ( ! is_numeric($items['price'])) - { - log_message('error', 'An invalid price was submitted for product ID: '.$items['id']); - return FALSE; - } - - // -------------------------------------------------------------------- - // We now need to create a unique identifier for the item being inserted into the cart. // Every time something is added to the cart it is stored in the master cart array. // Each row in the cart array, however, must have a unique index that identifies not only @@ -210,7 +237,7 @@ class CI_Cart { // This becomes the unique "row ID" if (isset($items['options']) && count($items['options']) > 0) { - $rowid = md5($items['id'].implode('', $items['options'])); + $rowid = md5($items['id'].serialize($items['options'])); } else { @@ -245,7 +272,6 @@ class CI_Cart { * product ID and quantity for each item. * * @param array - * @param string * @return bool */ public function update($items = array()) @@ -308,7 +334,7 @@ class CI_Cart { protected function _update($items = array()) { // Without these array indexes there is nothing we can do - if ( ! isset($items['qty']) OR ! isset($items['rowid']) OR ! isset($this->_cart_contents[$items['rowid']])) + if ( ! isset($items['qty'], $items['rowid'], $this->_cart_contents[$items['rowid']])) { return FALSE; } @@ -316,12 +342,6 @@ class CI_Cart { // Prep the quantity $items['qty'] = (float) $items['qty']; - // Is the quantity a number? - if ( ! is_numeric($items['qty'])) - { - return FALSE; - } - // Is the quantity zero? If so we will remove the item from the cart. // If the quantity is greater than zero we are updating if ($items['qty'] == 0) @@ -350,7 +370,7 @@ class CI_Cart { foreach ($this->_cart_contents as $key => $val) { // We make sure the array contains the proper indexes - if ( ! is_array($val) OR ! isset($val['price']) OR ! isset($val['qty'])) + if ( ! is_array($val) OR ! isset($val['price'], $val['qty'])) { continue; } @@ -360,7 +380,7 @@ class CI_Cart { $this->_cart_contents[$key]['subtotal'] = ($this->_cart_contents[$key]['price'] * $this->_cart_contents[$key]['qty']); } - // Is our cart empty? If so we delete it from the session + // Is our cart empty? If so we delete it from the session if (count($this->_cart_contents) <= 2) { $this->CI->session->unset_userdata('cart_contents'); @@ -396,6 +416,7 @@ class CI_Cart { * * Removes an item from the cart * + * @param int * @return bool */ public function remove($rowid) @@ -427,6 +448,7 @@ class CI_Cart { * * Returns the entire cart array * + * @param bool * @return array */ public function contents($newest_first = FALSE) @@ -444,16 +466,34 @@ class CI_Cart { // -------------------------------------------------------------------- /** + * Get cart item + * + * Returns the details of a specific item in the cart + * + * @param string $row_id + * @return array + */ + public function get_item($row_id) + { + return (in_array($row_id, array('total_items', 'cart_total'), TRUE) OR ! isset($this->_cart_contents[$row_id])) + ? FALSE + : $this->_cart_contents[$row_id]; + } + + // -------------------------------------------------------------------- + + /** * Has options * * Returns TRUE if the rowid passed to this function correlates to an item * that has options associated with it. * + * @param string $row_id = '' * @return bool */ - public function has_options($rowid = '') + public function has_options($row_id = '') { - return (isset($this->_cart_contents[$rowid]['options']) && count($this->_cart_contents[$rowid]['options']) !== 0) ? TRUE : FALSE; + return (isset($this->_cart_contents[$row_id]['options']) && count($this->_cart_contents[$row_id]['options']) !== 0); } // -------------------------------------------------------------------- @@ -463,12 +503,12 @@ class CI_Cart { * * Returns the an array of options, for a particular product row ID * - * @param int + * @param string $row_id = '' * @return array */ - public function product_options($rowid = '') + public function product_options($row_id = '') { - return isset($this->_cart_contents[$rowid]['options']) ? $this->_cart_contents[$rowid]['options'] : array(); + return isset($this->_cart_contents[$row_id]['options']) ? $this->_cart_contents[$row_id]['options'] : array(); } // -------------------------------------------------------------------- @@ -483,15 +523,7 @@ class CI_Cart { */ public function format_number($n = '') { - if ($n == '') - { - return ''; - } - - // Remove anything that isn't a number or decimal point. - $n = (float) $n; - - return number_format($n, 2, '.', ','); + return ($n === '') ? '' : number_format( (float) $n, 2, '.', ','); } // -------------------------------------------------------------------- |