diff options
| -rw-r--r-- | system/libraries/Cart.php | 567 | ||||
| -rw-r--r-- | tests/mocks/autoloader.php | 1 | ||||
| -rw-r--r-- | user_guide_src/source/changelog.rst | 23 | ||||
| -rw-r--r-- | user_guide_src/source/installation/upgrade_300.rst | 10 | ||||
| -rw-r--r-- | user_guide_src/source/installation/upgrade_320.rst | 1 | ||||
| -rw-r--r-- | user_guide_src/source/libraries/cart.rst | 398 |
6 files changed, 17 insertions, 983 deletions
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php deleted file mode 100644 index 44d87e0bf..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 - 2016, 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 - 2016, 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); - $this->CI->session->unset_userdata('cart_contents'); - } - -} diff --git a/tests/mocks/autoloader.php b/tests/mocks/autoloader.php index 11825de2c..a912327ca 100644 --- a/tests/mocks/autoloader.php +++ b/tests/mocks/autoloader.php @@ -33,7 +33,6 @@ function autoload($class) $ci_libraries = array( 'Calendar', - 'Cart', 'Driver_Library', 'Email', 'Encrypt', diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst index 4d0b4cf4d..6a0b827ae 100644 --- a/user_guide_src/source/changelog.rst +++ b/user_guide_src/source/changelog.rst @@ -22,6 +22,7 @@ Release Date: Not Released - Removed previously deprecated :doc:`Form Helper <helpers/form_helper>` function ``form_prep()`` (use :php:func:`html_escape()` instead). - Removed previously deprecated *Email Helper* (had only two functions, aliases for PHP's native ``filter_var()`` and ``mail()``). - Removed previously deprecated *Smiley Helper*. + - Removed previously deprecated *Cart Library*. - Removed previously deprecated *Javascript Library* (it was always experimental in the first place). - Libraries @@ -773,7 +774,7 @@ Release Date: March 30, 2015 - Added support for templating via an array in addition to the encoded string. - Changed method ``get_total_days()`` to be an alias for :doc:`Date Helper <helpers/date_helper>` :php:func:`days_in_month()`. - - :doc:`Cart Library <libraries/cart>` changes include: + - *Cart Library* changes include: - Deprecated the library as too specific for CodeIgniter. - Added method ``remove()`` to remove a cart item, updating with quantity of 0 seemed like a hack but has remained to retain compatibility. @@ -1042,7 +1043,7 @@ Bug fixes for 3.0 - Fixed a bug where :doc:`Database Forge <database/forge>` method ``create_table()`` with PostgreSQL database could lead to fetching the whole table. - Fixed a bug (#795) - :doc:`Form Helper <helpers/form_helper>` :php:func:`form_open()` didn't add the default form *method* and *accept-charset* when an empty array is passed to it. - Fixed a bug (#797) - :doc:`Date Helper <helpers/date_helper>` :php:func:`timespan()` was using incorrect seconds for year and month. -- Fixed a bug in :doc:`Cart Library <libraries/cart>` method ``contents()`` where if called without a TRUE (or equal) parameter, it would fail due to a typo. +- Fixed a bug in *Cart Library* method ``contents()`` where if called without a TRUE (or equal) parameter, it would fail due to a typo. - Fixed a bug (#406) - SQLSRV DB driver not returning resource on ``db_pconnect()``. - Fixed a bug in :doc:`Image Manipulation Library <libraries/image_lib>` method ``gd_loaded()`` where it was possible for the script execution to end or a PHP E_WARNING message to be emitted. - Fixed a bug in the :doc:`Pagination library <libraries/pagination>` where when use_page_numbers=TRUE previous link and page 1 link did not have the same url. @@ -1179,7 +1180,7 @@ Bug fixes for 3.0 - Fixed a bug (#2298) - :doc:`Database Results <database/results>` method ``next_row()`` kept returning the last row, allowing for infinite loops. - Fixed a bug (#2236, #2639) - :doc:`Form Helper <helpers/form_helper>` functions :php:func:`set_value()`, :php:func:`set_select()`, :php:func:`set_radio()`, :php:func:`set_checkbox()` didn't parse array notation for keys if the rule was not present in the :doc:`Form Validation Library <libraries/form_validation>`. - Fixed a bug (#2353) - :doc:`Query Builder <database/query_builder>` erroneously prefixed literal strings with **dbprefix**. -- Fixed a bug (#78) - :doc:`Cart Library <libraries/cart>` didn't allow non-English letters in product names. +- Fixed a bug (#78) - *Cart Library* didn't allow non-English letters in product names. - Fixed a bug (#77) - :doc:`Database Class <database/index>` didn't properly handle the transaction "test mode" flag. - Fixed a bug (#2380) - :doc:`URI Routing <general/routing>` method ``fetch_method()`` returned 'index' if the requested method name matches its controller name. - Fixed a bug (#2388) - :doc:`Email Library <libraries/email>` used to ignore attachment errors, resulting in broken emails being sent. @@ -1414,9 +1415,8 @@ Release Date: November 14, 2011 - Libraries - - Changed ``$this->cart->insert()`` in the :doc:`Cart - Library <libraries/cart>` to return the Row ID if a single - item was inserted successfully. + - Changed ``$this->cart->insert()`` in the *Cart Library* + to return the Row ID if a single item was inserted successfully. - Added support to set an optional parameter in your callback rules of validation using the :doc:`Form Validation Library <libraries/form_validation>`. @@ -1524,9 +1524,8 @@ Release Date: August 20, 2011 string. See upgrade notes if using database sessions. - Added $this->db->set_dbprefix() to the :doc:`Database Driver <database/queries>`. - - Changed $this->cart->insert() in the :doc:`Cart - Library <libraries/cart>` to return the Row ID if a single - item was inserted successfully. + - Changed ``$this->cart->insert()`` in the *Cart Library* + to return the Row ID if a single item was inserted successfully. - Added $this->load->get_var() to the :doc:`Loader library <libraries/loader>` to retrieve global vars set with $this->load->view() and $this->load->vars(). @@ -1551,8 +1550,8 @@ Bug fixes for 2.0.3 properly escaped. - Fixed issue #199 - Attributes passed as string does not include a space between it and the opening tag. -- Fixed a bug where the method $this->cart->total_items() from :doc:`Cart - Library <libraries/cart>` now returns the sum of the quantity +- Fixed a bug where the method ``$this->cart->total_items()`` from + *Cart Library* now returns the sum of the quantity of all items in the cart instead of your total count. - Fixed a bug where not setting 'null' when adding fields in db_forge for mysql and mysqli drivers would default to NULL instead of NOT @@ -1971,7 +1970,7 @@ Hg Tag: v1.7.2 - Libraries - - Added a new :doc:`Cart Class <libraries/cart>`. + - Added a new *Cart Class*. - Added the ability to pass $config['file_name'] for the :doc:`File Uploading Class <libraries/file_uploading>` and rename the uploaded file. diff --git a/user_guide_src/source/installation/upgrade_300.rst b/user_guide_src/source/installation/upgrade_300.rst index 54f635cc0..7b9082679 100644 --- a/user_guide_src/source/installation/upgrade_300.rst +++ b/user_guide_src/source/installation/upgrade_300.rst @@ -559,12 +559,12 @@ implemented cryptographic functions. The Cart library ================ -The :doc:`Cart Library <../libraries/cart>`, similarly to the *Smiley Helper* -is too specific for CodeIgniter. It is now deprecated and scheduled for -removal in CodeIgniter 3.1+. +The *Cart Library*, similarly to the *Smiley Helper* is too specific for +CodeIgniter. It is now deprecated and scheduled for removal in +CodeIgniter 3.1+. -.. note:: The library is still available, but you're strongly encouraged to remove its usage sooner - rather than later. +.. note:: The library is still available, but you're strongly encouraged to + remove its usage sooner rather than later. Database drivers 'mysql', 'sqlite', 'mssql', 'pdo/dblib' ======================================================== diff --git a/user_guide_src/source/installation/upgrade_320.rst b/user_guide_src/source/installation/upgrade_320.rst index 597e1ecf2..b587470f2 100644 --- a/user_guide_src/source/installation/upgrade_320.rst +++ b/user_guide_src/source/installation/upgrade_320.rst @@ -147,6 +147,7 @@ version 3.0.x, that have been removed in 3.2.0: - ``read_file()`` :doc:`File Helper <../helpers/file_helper>` function (use ``file_get_contents()`` instead) - ``form_prep()`` :doc:`Form Helper <../helpers/form_helper>` function (use :php:func:`html_escape()` instead) +- The entire *Cart Library* (an archived version is available on GitHub: `bcit-ci/ci3-cart-library <https://github.com/bcit-ci/ci3-cart-library>`_) - The entire *Javascript Library* (it was always experimental in the first place) - The entire *Email Helper*, which only had two functions: diff --git a/user_guide_src/source/libraries/cart.rst b/user_guide_src/source/libraries/cart.rst deleted file mode 100644 index be343320d..000000000 --- a/user_guide_src/source/libraries/cart.rst +++ /dev/null @@ -1,398 +0,0 @@ -################### -Shopping Cart Class -################### - -The Cart Class permits items to be added to a session that stays active -while a user is browsing your site. These items can be retrieved and -displayed in a standard "shopping cart" format, allowing the user to -update the quantity or remove items from the cart. - -.. important:: The Cart library is DEPRECATED and should not be used. - It is currently only kept for backwards compatibility. - -Please note that the Cart Class ONLY provides the core "cart" -functionality. It does not provide shipping, credit card authorization, -or other processing components. - -.. contents:: - :local: - -.. raw:: html - - <div class="custom-index container"></div> - -******************** -Using the Cart Class -******************** - -Initializing the Shopping Cart Class -==================================== - -.. important:: The Cart class utilizes CodeIgniter's :doc:`Session - Class <sessions>` to save the cart information to a database, so - before using the Cart class you must set up a database table as - indicated in the :doc:`Session Documentation <sessions>`, and set the - session preferences in your application/config/config.php file to - utilize a database. - -To initialize the Shopping Cart Class in your controller constructor, -use the ``$this->load->library()`` method:: - - $this->load->library('cart'); - -Once loaded, the Cart object will be available using:: - - $this->cart - -.. note:: The Cart Class will load and initialize the Session Class - automatically, so unless you are using sessions elsewhere in your - application, you do not need to load the Session class. - -Adding an Item to The Cart -========================== - -To add an item to the shopping cart, simply pass an array with the -product information to the ``$this->cart->insert()`` method, as shown -below:: - - $data = array( - 'id' => 'sku_123ABC', - 'qty' => 1, - 'price' => 39.95, - 'name' => 'T-Shirt', - 'options' => array('Size' => 'L', 'Color' => 'Red') - ); - - $this->cart->insert($data); - -.. important:: The first four array indexes above (id, qty, price, and - name) are **required**. If you omit any of them the data will not be - saved to the cart. The fifth index (options) is optional. It is intended - to be used in cases where your product has options associated with it. - Use an array for options, as shown above. - -The five reserved indexes are: - -- **id** - Each product in your store must have a unique identifier. - Typically this will be an "sku" or other such identifier. -- **qty** - The quantity being purchased. -- **price** - The price of the item. -- **name** - The name of the item. -- **options** - Any additional attributes that are needed to identify - the product. These must be passed via an array. - -In addition to the five indexes above, there are two reserved words: -rowid and subtotal. These are used internally by the Cart class, so -please do NOT use those words as index names when inserting data into -the cart. - -Your array may contain additional data. Anything you include in your -array will be stored in the session. However, it is best to standardize -your data among all your products in order to make displaying the -information in a table easier. - -:: - - $data = array( - 'id' => 'sku_123ABC', - 'qty' => 1, - 'price' => 39.95, - 'name' => 'T-Shirt', - 'coupon' => 'XMAS-50OFF' - ); - - $this->cart->insert($data); - -The ``insert()`` method will return the $rowid if you successfully insert a -single item. - -Adding Multiple Items to The Cart -================================= - -By using a multi-dimensional array, as shown below, it is possible to -add multiple products to the cart in one action. This is useful in cases -where you wish to allow people to select from among several items on the -same page. - -:: - - $data = array( - array( - 'id' => 'sku_123ABC', - 'qty' => 1, - 'price' => 39.95, - 'name' => 'T-Shirt', - 'options' => array('Size' => 'L', 'Color' => 'Red') - ), - array( - 'id' => 'sku_567ZYX', - 'qty' => 1, - 'price' => 9.95, - 'name' => 'Coffee Mug' - ), - array( - 'id' => 'sku_965QRS', - 'qty' => 1, - 'price' => 29.95, - 'name' => 'Shot Glass' - ) - ); - - $this->cart->insert($data); - -Displaying the Cart -=================== - -To display the cart you will create a :doc:`view -file </general/views>` with code similar to the one shown below. - -Please note that this example uses the :doc:`form -helper </helpers/form_helper>`. - -:: - - <?php echo form_open('path/to/controller/update/method'); ?> - - <table cellpadding="6" cellspacing="1" style="width:100%" border="0"> - - <tr> - <th>QTY</th> - <th>Item Description</th> - <th style="text-align:right">Item Price</th> - <th style="text-align:right">Sub-Total</th> - </tr> - - <?php $i = 1; ?> - - <?php foreach ($this->cart->contents() as $items): ?> - - <?php echo form_hidden($i.'[rowid]', $items['rowid']); ?> - - <tr> - <td><?php echo form_input(array('name' => $i.'[qty]', 'value' => $items['qty'], 'maxlength' => '3', 'size' => '5')); ?></td> - <td> - <?php echo $items['name']; ?> - - <?php if ($this->cart->has_options($items['rowid']) == TRUE): ?> - - <p> - <?php foreach ($this->cart->product_options($items['rowid']) as $option_name => $option_value): ?> - - <strong><?php echo $option_name; ?>:</strong> <?php echo $option_value; ?><br /> - - <?php endforeach; ?> - </p> - - <?php endif; ?> - - </td> - <td style="text-align:right"><?php echo $this->cart->format_number($items['price']); ?></td> - <td style="text-align:right">$<?php echo $this->cart->format_number($items['subtotal']); ?></td> - </tr> - - <?php $i++; ?> - - <?php endforeach; ?> - - <tr> - <td colspan="2"> </td> - <td class="right"><strong>Total</strong></td> - <td class="right">$<?php echo $this->cart->format_number($this->cart->total()); ?></td> - </tr> - - </table> - - <p><?php echo form_submit('', 'Update your Cart'); ?></p> - -Updating The Cart -================= - -To update the information in your cart, you must pass an array -containing the Row ID and one or more pre-defined properties to the -``$this->cart->update()`` method. - -.. note:: If the quantity is set to zero, the item will be removed from - the cart. - -:: - - $data = array( - 'rowid' => 'b99ccdf16028f015540f341130b6d8ec', - 'qty' => 3 - ); - - $this->cart->update($data); - - // Or a multi-dimensional array - - $data = array( - array( - 'rowid' => 'b99ccdf16028f015540f341130b6d8ec', - 'qty' => 3 - ), - array( - 'rowid' => 'xw82g9q3r495893iajdh473990rikw23', - 'qty' => 4 - ), - array( - 'rowid' => 'fh4kdkkkaoe30njgoe92rkdkkobec333', - 'qty' => 2 - ) - ); - - $this->cart->update($data); - -You may also update any property you have previously defined when -inserting the item such as options, price or other custom fields. - -:: - - $data = array( - 'rowid' => 'b99ccdf16028f015540f341130b6d8ec', - 'qty' => 1, - 'price' => 49.95, - 'coupon' => NULL - ); - - $this->cart->update($data); - -What is a Row ID? -***************** - -The row ID is a unique identifier that is generated by the cart code -when an item is added to the cart. The reason a unique ID is created -is so that identical products with different options can be managed -by the cart. - -For example, let's say someone buys two identical t-shirts (same product -ID), but in different sizes. The product ID (and other attributes) will -be identical for both sizes because it's the same shirt. The only -difference will be the size. The cart must therefore have a means of -identifying this difference so that the two sizes of shirts can be -managed independently. It does so by creating a unique "row ID" based on -the product ID and any options associated with it. - -In nearly all cases, updating the cart will be something the user does -via the "view cart" page, so as a developer, it is unlikely that you -will ever have to concern yourself with the "row ID", other than making -sure your "view cart" page contains this information in a hidden form -field, and making sure it gets passed to the ``update()`` method when -the update form is submitted. Please examine the construction of the -"view cart" page above for more information. - - -*************** -Class Reference -*************** - -.. php:class:: CI_Cart - - .. attribute:: $product_id_rules = '\.a-z0-9_-' - - These are the regular expression rules that we use to validate the product - ID - alpha-numeric, dashes, underscores, or periods by default - - .. attribute:: $product_name_rules = '\w \-\.\:' - - These are the regular expression rules that we use to validate the product ID and product name - alpha-numeric, dashes, underscores, colons or periods by - default - - .. attribute:: $product_name_safe = TRUE - - Whether or not to only allow safe product names. Default TRUE. - - - .. php:method:: insert([$items = array()]) - - :param array $items: Items to insert into the cart - :returns: TRUE on success, FALSE on failure - :rtype: bool - - Insert items into the cart and save it to the session table. Returns TRUE - on success and FALSE on failure. - - - .. php:method:: update([$items = array()]) - - :param array $items: Items to update in the cart - :returns: TRUE on success, FALSE on failure - :rtype: bool - - This method permits changing the properties of a given item. - Typically it is called from the "view cart" page if a user makes changes - to the quantity before checkout. That array must contain the rowid - for each item. - - .. php:method:: remove($rowid) - - :param int $rowid: ID of the item to remove from the cart - :returns: TRUE on success, FALSE on failure - :rtype: bool - - Allows you to remove an item from the shopping cart by passing it the - ``$rowid``. - - .. php:method:: total() - - :returns: Total amount - :rtype: int - - Displays the total amount in the cart. - - - .. php:method:: total_items() - - :returns: Total amount of items in the cart - :rtype: int - - Displays the total number of items in the cart. - - - .. php:method:: contents([$newest_first = FALSE]) - - :param bool $newest_first: Whether to order the array with newest items first - :returns: An array of cart contents - :rtype: array - - Returns an array containing everything in the cart. You can sort the - order by which the array is returned by passing it TRUE where the contents - will be sorted from newest to oldest, otherwise it is sorted from oldest - to newest. - - .. php:method:: get_item($row_id) - - :param int $row_id: Row ID to retrieve - :returns: Array of item data - :rtype: array - - Returns an array containing data for the item matching the specified row - ID, or FALSE if no such item exists. - - .. php:method:: has_options($row_id = '') - - :param int $row_id: Row ID to inspect - :returns: TRUE if options exist, FALSE otherwise - :rtype: bool - - Returns TRUE (boolean) if a particular row in the cart contains options. - This method is designed to be used in a loop with ``contents()``, since - you must pass the rowid to this method, as shown in the Displaying - the Cart example above. - - .. php:method:: product_options([$row_id = '']) - - :param int $row_id: Row ID - :returns: Array of product options - :rtype: array - - Returns an array of options for a particular product. This method is - designed to be used in a loop with ``contents()``, since you - must pass the rowid to this method, as shown in the Displaying the - Cart example above. - - .. php:method:: destroy() - - :rtype: void - - Permits you to destroy the cart. This method will likely be called - when you are finished processing the customer's order.
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