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diff --git a/user_guide/libraries/cart.html b/user_guide/libraries/cart.html deleted file mode 100644 index f084d5dcf..000000000 --- a/user_guide/libraries/cart.html +++ /dev/null @@ -1,346 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> - -<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> -<title>Shopping Cart Class : CodeIgniter User Guide</title> - -<style type='text/css' media='all'>@import url('../userguide.css');</style> -<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' /> - -<script type="text/javascript" src="../nav/nav.js"></script> -<script type="text/javascript" src="../nav/prototype.lite.js"></script> -<script type="text/javascript" src="../nav/moo.fx.js"></script> -<script type="text/javascript" src="../nav/user_guide_menu.js"></script> - -<meta http-equiv='expires' content='-1' /> -<meta http-equiv= 'pragma' content='no-cache' /> -<meta name='robots' content='all' /> -<meta name='author' content='ExpressionEngine Dev Team' /> -<meta name='description' content='CodeIgniter User Guide' /> - -</head> -<body> - -<!-- START NAVIGATION --> -<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div> -<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div> -<div id="masthead"> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td><h1>CodeIgniter User Guide Version 2.0.2</h1></td> -<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td> -</tr> -</table> -</div> -<!-- END NAVIGATION --> - - -<!-- START BREADCRUMB --> -<table cellpadding="0" cellspacing="0" border="0" style="width:100%"> -<tr> -<td id="breadcrumb"> -<a href="http://codeigniter.com/">CodeIgniter Home</a> › -<a href="../index.html">User Guide Home</a> › -Shopping Cart Class -</td> -<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td> -</tr> -</table> -<!-- END BREADCRUMB --> - -<br clear="all" /> - - -<!-- START CONTENT --> -<div id="content"> - - -<h1>Shopping Cart Class</h1> - -<p>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.</p> - -<p>Please note that the Cart Class ONLY provides the core "cart" functionality. It does not provide shipping, credit card authorization, or other processing components.</p> - - -<h2>Initializing the Shopping Cart Class</h2> - -<p><strong>Important:</strong> The Cart class utilizes CodeIgniter's -<a href="sessions.html">Session Class</a> 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 <a href="sessions.html">Session Documentation</a> , and set the session preferences in your <kbd>application/config/config.php</kbd> file to utilize a database.</p> - -<p>To initialize the Shopping Cart Class in your controller constructor, use the <dfn>$this->load->library</dfn> function:</p> - -<code>$this->load->library('cart');</code> -<p>Once loaded, the Cart object will be available using: <dfn>$this->cart</dfn></p> - -<p class="important"><strong>Note:</strong> The Cart Class will load and initialize the Session Class automatically, so unless you are using sessions elsewhere in your application, you do not need to load the Session class.</p> - -<h2>Adding an Item to The Cart</h2> - -<p>To add an item to the shopping cart, simply pass an array with the product information to the <dfn>$this->cart->insert()</dfn> function, as shown below:</p> - -<code> -$data = array(<br /> - 'id' => 'sku_123ABC',<br /> - 'qty' => 1,<br /> - 'price' => 39.95,<br /> - 'name' => 'T-Shirt',<br /> - 'options' => array('Size' => 'L', 'Color' => 'Red')<br /> - );<br /> -<br /> - -$this->cart->insert($data); - -</code> - -<p class="important"><strong>Important:</strong> The first four array indexes above (<dfn>id</dfn>, <dfn>qty</dfn>, <dfn>price</dfn>, and <dfn>name</dfn>) are <strong>required</strong>. -If you omit any of them the data will not be saved to the cart. The fifth index (<dfn>options</dfn>) is optional. -It is intended to be used in cases where your product has options associated with it. Use an array for options, as shown above.</p> - -<p>The five reserved indexes are:</p> - -<ul> -<li><strong>id</strong> - Each product in your store must have a unique identifier. Typically this will be an "sku" or other such identifier.</li> -<li><strong>qty</strong> - The quantity being purchased. -<li><strong>price</strong> - The price of the item. -<li><strong>name</strong> - The name of the item. -<li><strong>options</strong> - Any additional attributes that are needed to identify the product. These must be passed via an array. -</ul> - -<p>In addition to the five indexes above, there are two reserved words: <dfn>rowid</dfn> and <dfn>subtotal</dfn>. These are used internally by the Cart class, so -please do NOT use those words as index names when inserting data into the cart.</p> - -<p>Your array may contain additional data. Anything you include in your array will be stored in the session. However, it is best to standardize your data among -all your products in order to make displaying the information in a table easier.</p> - - -<h2>Adding Multiple Items to The Cart</h2> - -<p>By using a multi-dimensional array, as shown below, it is possible to add multiple products to the cart in one action. This is useful in cases where you wish to allow -people to select from among several items on the same page.</p> - - -<code> -$data = array(<br /> - - array(<br /> - 'id' => 'sku_123ABC',<br /> - 'qty' => 1,<br /> - 'price' => 39.95,<br /> - 'name' => 'T-Shirt',<br /> - 'options' => array('Size' => 'L', 'Color' => 'Red')<br /> - ),<br /> - - array(<br /> - 'id' => 'sku_567ZYX',<br /> - 'qty' => 1,<br /> - 'price' => 9.95,<br /> - 'name' => 'Coffee Mug'<br /> - ),<br /> - - array(<br /> - 'id' => 'sku_965QRS',<br /> - 'qty' => 1,<br /> - 'price' => 29.95,<br /> - 'name' => 'Shot Glass'<br /> - )<br /> - - );<br /> -<br /> - -$this->cart->insert($data); - -</code> - - - - -<h2>Displaying the Cart</h2> - -<p>To display the cart you will create a <a href="../general/views.html">view file</a> with code similar to the one shown below.</p> - -<p>Please note that this example uses the <a href="../helpers/form_helper.html">form helper</a>.</p> - - -<textarea class="textarea" style="width:100%" cols="50" rows="55"> -<?php echo form_open('path/to/controller/update/function'); ?> - -<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> -</textarea> - - - - -<h2>Updating The Cart</h2> - -<p>To update the information in your cart, you must pass an array containing the <kbd>Row ID</kbd> and quantity to the <dfn>$this->cart->update()</dfn> function:</p> - -<p class="important"><strong>Note:</strong> If the quantity is set to zero, the item will be removed from the cart.</p> - -<code> -$data = array(<br /> - 'rowid' => 'b99ccdf16028f015540f341130b6d8ec',<br /> - 'qty' => 3<br /> - );<br /> -<br /> - -$this->cart->update($data); -<br /><br /> -// Or a multi-dimensional array<br /><br /> -$data = array(<br /> - - array(<br /> - 'rowid' => 'b99ccdf16028f015540f341130b6d8ec',<br /> - 'qty' => 3<br /> - ),<br /> - - array(<br /> - 'rowid' => 'xw82g9q3r495893iajdh473990rikw23',<br /> - 'qty' => 4<br /> - ),<br /> - - array(<br /> - 'rowid' => 'fh4kdkkkaoe30njgoe92rkdkkobec333',<br /> - 'qty' => 2<br /> - )<br /> - - );<br /> -<br /> - -$this->cart->update($data); - - - - -</code> - -<p><strong>What is a Row ID?</strong> The <kbd>row ID</kbd> is a unique identifier that is generated by the cart code when an item is added to the cart. The reason a -unique ID is created is so that identical products with different options can be managed by the cart.</p> - -<p>For example, let's say someone buys two identical t-shirts (same product ID), but in different sizes. The product ID (and other attributes) will be -identical for both sizes because it's the same shirt. The only difference will be the size. The cart must therefore have a means of identifying this -difference so that the two sizes of shirts can be managed independently. It does so by creating a unique "row ID" based on the product ID and any options associated with it.</p> - -<p>In nearly all cases, updating the cart will be something the user does via the "view cart" page, so as a developer, it is unlikely that you will ever have to concern yourself -with the "row ID", other then making sure your "view cart" page contains this information in a hidden form field, and making sure it gets passed to the update -function when the update form is submitted. Please examine the construction of the "view cart" page above for more information.</p> - - - -<p> <br /></p> - - -<h1>Function Reference</h1> - -<h2>$this->cart->insert();</h2> - -<p>Permits you to add items to the shopping cart, as outlined above.</p> - - -<h2>$this->cart->update();</h2> - -<p>Permits you to update items in the shopping cart, as outlined above.</p> - - -<h2>$this->cart->total();</h2> - -<p>Displays the total amount in the cart.</p> - - -<h2>$this->cart->total_items();</h2> - -<p>Displays the total number of items in the cart.</p> - - -<h2>$this->cart->contents();</h2> - -<p>Returns an array containing everything in the cart.</p> - - - -<h2>$this->cart->has_options(rowid);</h2> - -<p>Returns TRUE (boolean) if a particular row in the cart contains options. This function is designed to be used in a loop with <dfn>$this->cart->contents()</dfn>, since you must pass the <kbd>rowid</kbd> to this function, as shown in the <dfn>Displaying the Cart</dfn> example above.</p> - - -<h2>$this->cart->product_options(rowid);</h2> - -<p>Returns an array of options for a particular product. This function is designed to be used in a loop with <dfn>$this->cart->contents()</dfn>, since you must pass the <kbd>rowid</kbd> to this function, as shown in the <dfn>Displaying the Cart</dfn> example above.</p> - - - -<h2>$this->cart->destroy();</h2> - -<p>Permits you to destroy the cart. This function will likely be called when you are finished processing the customer's order.</p> - - - - -</div> -<!-- END CONTENT --> - - -<div id="footer"> -<p> -Previous Topic: <a href="calendar.html">Calendar Class</a> - · -<a href="#top">Top of Page</a> · -<a href="../index.html">User Guide Home</a> · -Next Topic: <a href="config.html">Config Class</a> -</p> -<p><a href="http://codeigniter.com">CodeIgniter</a> · Copyright © 2006 - 2011 · <a href="http://ellislab.com/">EllisLab, Inc.</a></p> -</div> - -</body> -</html>
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