diff options
| author | Derek Allard <derek.allard@ellislab.com> | 2009-09-16 11:47:52 +0200 |
|---|---|---|
| committer | Derek Allard <derek.allard@ellislab.com> | 2009-09-16 11:47:52 +0200 |
| commit | efb37ca18bb622f943e3a0b65750dddfe077a889 (patch) | |
| tree | 6505e4b348c551cc8e274a53a68c076e7942f038 /user_guide/libraries | |
| parent | f673a87ad9530a2982caef0bd5a53983d6b06a63 (diff) | |
missing version point in cart doc
Diffstat (limited to 'user_guide/libraries')
| -rw-r--r-- | user_guide/libraries/cart.html | 690 |
1 files changed, 345 insertions, 345 deletions
diff --git a/user_guide/libraries/cart.html b/user_guide/libraries/cart.html index 44229162d..cb623254f 100644 --- a/user_guide/libraries/cart.html +++ b/user_guide/libraries/cart.html @@ -1,346 +1,346 @@ -<!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 1.7</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>appliction/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>$this->cart->options(rowid);</h2>
-
-<p>Returns an array of options for a particular product. This function is designed to be used in a loop with <dfn>$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 © 2006-2009 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
-</div>
-
-</body>
+<!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 1.7.2</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>appliction/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>$this->cart->options(rowid);</h2> + +<p>Returns an array of options for a particular product. This function is designed to be used in a loop with <dfn>$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 © 2006-2009 · <a href="http://ellislab.com/">Ellislab, Inc.</a></p> +</div> + +</body> </html>
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