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Diffstat (limited to 'system/libraries/Cart.php')
| -rw-r--r-- | system/libraries/Cart.php | 567 |
1 files changed, 0 insertions, 567 deletions
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php deleted file mode 100644 index 734c43420..000000000 --- a/system/libraries/Cart.php +++ /dev/null @@ -1,567 +0,0 @@ -<?php -/** - * CodeIgniter - * - * An open source application development framework for PHP - * - * This content is released under the MIT License (MIT) - * - * Copyright (c) 2014 - 2017, British Columbia Institute of Technology - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - * @package CodeIgniter - * @author EllisLab Dev Team - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) - * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) - * @license http://opensource.org/licenses/MIT MIT License - * @link https://codeigniter.com - * @since Version 1.0.0 - * @filesource - */ -defined('BASEPATH') OR exit('No direct script access allowed'); - -/** - * Shopping Cart Class - * - * @package CodeIgniter - * @subpackage Libraries - * @category Shopping Cart - * @author EllisLab Dev Team - * @link https://codeigniter.com/user_guide/libraries/cart.html - * @deprecated 3.0.0 This class is too specific for CI. - */ -class CI_Cart { - - /** - * 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 = '\w \-\.\:'; - - /** - * only allow safe product names - * - * @var bool - */ - public $product_name_safe = TRUE; - - // -------------------------------------------------------------------------- - - /** - * 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()) - { - // Set the super object to a local variable for use later - $this->CI =& get_instance(); - - // Are any config settings being passed manually? If so, set them - $config = is_array($params) ? $params : array(); - - // Load the Sessions class - $this->CI->load->driver('session', $config); - - // Grab the shopping cart array from the session table - $this->_cart_contents = $this->CI->session->userdata('cart_contents'); - if ($this->_cart_contents === NULL) - { - // No cart exists so we'll set some base values - $this->_cart_contents = array('cart_total' => 0, 'total_items' => 0); - } - - log_message('info', 'Cart Class Initialized'); - } - - // -------------------------------------------------------------------- - - /** - * Insert items into the cart and save it to the session table - * - * @param array - * @return bool - */ - public function insert($items = array()) - { - // Was any cart data passed? No? Bah... - if ( ! is_array($items) OR count($items) === 0) - { - log_message('error', 'The insert method must be passed an array containing data.'); - return FALSE; - } - - // You can either insert a single product using a one-dimensional array, - // or multiple products using a multi-dimensional one. The way we - // determine the array type is by looking for a required array key named "id" - // at the top level. If it's not found, we will assume it's a multi-dimensional array. - - $save_cart = FALSE; - if (isset($items['id'])) - { - if (($rowid = $this->_insert($items))) - { - $save_cart = TRUE; - } - } - else - { - foreach ($items as $val) - { - if (is_array($val) && isset($val['id'])) - { - if ($this->_insert($val)) - { - $save_cart = TRUE; - } - } - } - } - - // Save the cart data if the insert was successful - if ($save_cart === TRUE) - { - $this->_save_cart(); - return isset($rowid) ? $rowid : TRUE; - } - - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Insert - * - * @param array - * @return bool - */ - protected function _insert($items = array()) - { - // Was any cart data passed? No? Bah... - if ( ! is_array($items) OR count($items) === 0) - { - log_message('error', 'The insert method must be passed an array containing data.'); - return FALSE; - } - - // -------------------------------------------------------------------- - - // Does the $items array contain an id, quantity, price, and name? These are required - if ( ! isset($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; - } - - // -------------------------------------------------------------------- - - // Prep the quantity. It can only be a number. Duh... also trim any leading zeros - $items['qty'] = (float) $items['qty']; - - // If the quantity is zero or blank there's nothing for us to do - if ($items['qty'] == 0) - { - return FALSE; - } - - // -------------------------------------------------------------------- - - // Validate the product ID. It can only be alpha-numeric, dashes, underscores or periods - // Not totally sure we should impose this rule, but it seems prudent to standardize IDs. - // Note: These can be user-specified by setting the $this->product_id_rules variable. - if ( ! preg_match('/^['.$this->product_id_rules.']+$/i', $items['id'])) - { - log_message('error', 'Invalid product ID. The product ID can only contain alpha-numeric characters, dashes, and underscores'); - return FALSE; - } - - // -------------------------------------------------------------------- - - // Validate the product name. It can only be alpha-numeric, dashes, underscores, colons or periods. - // Note: These can be user-specified by setting the $this->product_name_rules variable. - if ($this->product_name_safe && ! preg_match('/^['.$this->product_name_rules.']+$/i'.(UTF8_ENABLED ? 'u' : ''), $items['name'])) - { - log_message('error', 'An invalid name was submitted as the product name: '.$items['name'].' The name can only contain alpha-numeric characters, dashes, underscores, colons, and spaces'); - return FALSE; - } - - // -------------------------------------------------------------------- - - // Prep the price. Remove leading zeros and anything that isn't a number or decimal point. - $items['price'] = (float) $items['price']; - - // We now need to create a unique identifier for the item being inserted into the cart. - // Every time something is added to the cart it is stored in the master cart array. - // Each row in the cart array, however, must have a unique index that identifies not only - // a particular product, but makes it possible to store identical products with different options. - // For example, what if someone buys two identical t-shirts (same product ID), but in - // different sizes? The product ID (and other attributes, like the name) will be identical for - // both sizes because it's the same shirt. The only difference will be the size. - // Internally, we need to treat identical submissions, but with different options, as a unique product. - // Our solution is to convert the options array to a string and MD5 it along with the product ID. - // This becomes the unique "row ID" - if (isset($items['options']) && count($items['options']) > 0) - { - $rowid = md5($items['id'].serialize($items['options'])); - } - else - { - // No options were submitted so we simply MD5 the product ID. - // Technically, we don't need to MD5 the ID in this case, but it makes - // sense to standardize the format of array indexes for both conditions - $rowid = md5($items['id']); - } - - // -------------------------------------------------------------------- - - // 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 - $old_quantity = isset($this->_cart_contents[$rowid]['qty']) ? (int) $this->_cart_contents[$rowid]['qty'] : 0; - - // Re-create the entry, just to make sure our index contains only the data from this submission - $items['rowid'] = $rowid; - $items['qty'] += $old_quantity; - $this->_cart_contents[$rowid] = $items; - - return $rowid; - } - - // -------------------------------------------------------------------- - - /** - * Update the cart - * - * This function permits the quantity of a given item to be changed. - * Typically it is called from the "view cart" page if a user makes - * changes to the quantity before checkout. That array must contain the - * product ID and quantity for each item. - * - * @param array - * @return bool - */ - public function update($items = array()) - { - // Was any cart data passed? - if ( ! is_array($items) OR count($items) === 0) - { - return FALSE; - } - - // You can either update a single product using a one-dimensional array, - // or multiple products using a multi-dimensional one. The way we - // determine the array type is by looking for a required array key named "rowid". - // If it's not found we assume it's a multi-dimensional array - $save_cart = FALSE; - if (isset($items['rowid'])) - { - if ($this->_update($items) === TRUE) - { - $save_cart = TRUE; - } - } - else - { - foreach ($items as $val) - { - if (is_array($val) && isset($val['rowid'])) - { - if ($this->_update($val) === TRUE) - { - $save_cart = TRUE; - } - } - } - } - - // Save the cart data if the insert was successful - if ($save_cart === TRUE) - { - $this->_save_cart(); - return TRUE; - } - - return FALSE; - } - - // -------------------------------------------------------------------- - - /** - * Update the cart - * - * This function permits changing item properties. - * Typically it is called from the "view cart" page if a user makes - * changes to the quantity before checkout. That array must contain the - * rowid and quantity for each item. - * - * @param array - * @return bool - */ - protected function _update($items = array()) - { - // Without these array indexes there is nothing we can do - if ( ! isset($items['rowid'], $this->_cart_contents[$items['rowid']])) - { - return FALSE; - } - - // Prep the quantity - if (isset($items['qty'])) - { - $items['qty'] = (float) $items['qty']; - // Is the quantity zero? If so we will remove the item from the cart. - // If the quantity is greater than zero we are updating - if ($items['qty'] == 0) - { - unset($this->_cart_contents[$items['rowid']]); - return TRUE; - } - } - - // find updatable keys - $keys = array_intersect(array_keys($this->_cart_contents[$items['rowid']]), array_keys($items)); - // if a price was passed, make sure it contains valid data - if (isset($items['price'])) - { - $items['price'] = (float) $items['price']; - } - - // product id & name shouldn't be changed - foreach (array_diff($keys, array('id', 'name')) as $key) - { - $this->_cart_contents[$items['rowid']][$key] = $items[$key]; - } - - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Save the cart array to the session DB - * - * @return bool - */ - protected function _save_cart() - { - // Let's add up the individual prices and set the cart sub-total - $this->_cart_contents['total_items'] = $this->_cart_contents['cart_total'] = 0; - foreach ($this->_cart_contents as $key => $val) - { - // We make sure the array contains the proper indexes - if ( ! is_array($val) OR ! isset($val['price'], $val['qty'])) - { - continue; - } - - $this->_cart_contents['cart_total'] += ($val['price'] * $val['qty']); - $this->_cart_contents['total_items'] += $val['qty']; - $this->_cart_contents[$key]['subtotal'] = ($this->_cart_contents[$key]['price'] * $this->_cart_contents[$key]['qty']); - } - - // Is our cart empty? If so we delete it from the session - if (count($this->_cart_contents) <= 2) - { - $this->CI->session->unset_userdata('cart_contents'); - - // Nothing more to do... coffee time! - return FALSE; - } - - // If we made it this far it means that our cart has data. - // Let's pass it to the Session class so it can be stored - $this->CI->session->set_userdata(array('cart_contents' => $this->_cart_contents)); - - // Woot! - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Cart Total - * - * @return int - */ - public function total() - { - return $this->_cart_contents['cart_total']; - } - - // -------------------------------------------------------------------- - - /** - * Remove Item - * - * Removes an item from the cart - * - * @param int - * @return bool - */ - public function remove($rowid) - { - // unset & save - unset($this->_cart_contents[$rowid]); - $this->_save_cart(); - return TRUE; - } - - // -------------------------------------------------------------------- - - /** - * Total Items - * - * Returns the total item count - * - * @return int - */ - public function total_items() - { - return $this->_cart_contents['total_items']; - } - - // -------------------------------------------------------------------- - - /** - * Cart Contents - * - * Returns the entire cart array - * - * @param bool - * @return array - */ - public function contents($newest_first = FALSE) - { - // do we want the newest first? - $cart = ($newest_first) ? array_reverse($this->_cart_contents) : $this->_cart_contents; - - // Remove these so they don't create a problem when showing the cart table - unset($cart['total_items']); - unset($cart['cart_total']); - - return $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 $row_id = '' - * @return bool - */ - public function has_options($row_id = '') - { - return (isset($this->_cart_contents[$row_id]['options']) && count($this->_cart_contents[$row_id]['options']) !== 0); - } - - // -------------------------------------------------------------------- - - /** - * Product options - * - * Returns the an array of options, for a particular product row ID - * - * @param string $row_id = '' - * @return array - */ - public function product_options($row_id = '') - { - return isset($this->_cart_contents[$row_id]['options']) ? $this->_cart_contents[$row_id]['options'] : array(); - } - - // -------------------------------------------------------------------- - - /** - * Format Number - * - * Returns the supplied number with commas and a decimal point. - * - * @param float - * @return string - */ - public function format_number($n = '') - { - return ($n === '') ? '' : number_format( (float) $n, 2, '.', ','); - } - - // -------------------------------------------------------------------- - - /** - * Destroy the cart - * - * Empties the cart and kills the session - * - * @return void - */ - public function destroy() - { - $this->_cart_contents = array('cart_total' => 0, 'total_items' => 0); - $this->CI->session->unset_userdata('cart_contents'); - } - -} |