Merge branch 'develop' of ellislab.beanstalkapp.com:/codeigniter into develop
diff --git a/system/core/Loader.php b/system/core/Loader.php
index 721c196..7c8b298 100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -389,6 +389,21 @@
 	// --------------------------------------------------------------------
 
 	/**
+	 * Get Variable
+	 *
+	 * Check if a variable is set and retrieve it.
+	 *
+	 * @param	array
+	 * @return	void
+	 */
+	public function get_var($key)
+	{
+		return isset($this->_ci_cached_vars[$key]) ? $this->_ci_cached_vars[$key] : NULL;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Load Helper
 	 *
 	 * This function loads the specified helper file.
diff --git a/system/libraries/Cart.php b/system/libraries/Cart.php
index 7f65b48..ab5a70c 100644
--- a/system/libraries/Cart.php
+++ b/system/libraries/Cart.php
@@ -99,7 +99,7 @@
 		$save_cart = FALSE;
 		if (isset($items['id']))
 		{
-			if ($this->_insert($items) == TRUE)
+			if (($rowid = $this->_insert($items)))
 			{
 				$save_cart = TRUE;
 			}
@@ -110,7 +110,7 @@
 			{
 				if (is_array($val) AND isset($val['id']))
 				{
-					if ($this->_insert($val) == TRUE)
+					if ($this->_insert($val))
 					{
 						$save_cart = TRUE;
 					}
@@ -122,7 +122,7 @@
 		if ($save_cart == TRUE)
 		{
 			$this->_save_cart();
-			return TRUE;
+			return isset($rowid) ? $rowid : TRUE;
 		}
 
 		return FALSE;
@@ -244,7 +244,7 @@
 		}
 
 		// Woot!
-		return TRUE;
+		return $rowid;
 	}
 
 	// --------------------------------------------------------------------
@@ -374,6 +374,7 @@
 
 		// Lets add up the individual prices and set the cart sub-total
 		$total = 0;
+		$items = 0;
 		foreach ($this->_cart_contents as $key => $val)
 		{
 			// We make sure the array contains the proper indexes
@@ -383,13 +384,14 @@
 			}
 
 			$total += ($val['price'] * $val['qty']);
+			$items += $val['qty'];
 
 			// Set the subtotal
 			$this->_cart_contents[$key]['subtotal'] = ($this->_cart_contents[$key]['price'] * $this->_cart_contents[$key]['qty']);
 		}
 
 		// Set the cart total and total items.
-		$this->_cart_contents['total_items'] = count($this->_cart_contents);
+		$this->_cart_contents['total_items'] = $items;
 		$this->_cart_contents['cart_total'] = $total;
 
 		// Is our cart empty?  If so we delete it from the session
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index cd89f8f..9b3bc75 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -405,12 +405,12 @@
 	/**
 	 * Add a Header Item
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @param	string
 	 * @return	void
 	 */
-	private function _set_header($header, $value)
+	protected function _set_header($header, $value)
 	{
 		$this->_headers[$header] = $value;
 	}
@@ -420,11 +420,11 @@
 	/**
 	 * Convert a String to an Array
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @return	array
 	 */
-	private function _str_to_array($email)
+	protected function _str_to_array($email)
 	{
 		if ( ! is_array($email))
 		{
@@ -577,10 +577,10 @@
 	/**
 	 * Set Message Boundary
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	void
 	 */
-	private function _set_boundaries()
+	protected function _set_boundaries()
 	{
 		$this->_alt_boundary = "B_ALT_".uniqid(''); // multipart/alternative
 		$this->_atc_boundary = "B_ATC_".uniqid(''); // attachment boundary
@@ -591,10 +591,10 @@
 	/**
 	 * Get the Message ID
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_message_id()
+	protected function _get_message_id()
 	{
 		$from = $this->_headers['Return-Path'];
 		$from = str_replace(">", "", $from);
@@ -608,11 +608,11 @@
 	/**
 	 * Get Mail Protocol
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	bool
 	 * @return	string
 	 */
-	private function _get_protocol($return = TRUE)
+	protected function _get_protocol($return = TRUE)
 	{
 		$this->protocol = strtolower($this->protocol);
 		$this->protocol = ( ! in_array($this->protocol, $this->_protocols, TRUE)) ? 'mail' : $this->protocol;
@@ -628,11 +628,11 @@
 	/**
 	 * Get Mail Encoding
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	bool
 	 * @return	string
 	 */
-	private function _get_encoding($return = TRUE)
+	protected function _get_encoding($return = TRUE)
 	{
 		$this->_encoding = ( ! in_array($this->_encoding, $this->_bit_depths)) ? '8bit' : $this->_encoding;
 
@@ -655,10 +655,10 @@
 	/**
 	 * Get content type (text/html/attachment)
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_content_type()
+	protected function _get_content_type()
 	{
 		if	($this->mailtype == 'html' &&  count($this->_attach_name) == 0)
 		{
@@ -683,10 +683,10 @@
 	/**
 	 * Set RFC 822 Date
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _set_date()
+	protected function _set_date()
 	{
 		$timezone = date("Z");
 		$operator = (strncmp($timezone, '-', 1) == 0) ? '-' : '+';
@@ -701,10 +701,10 @@
 	/**
 	 * Mime message
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_mime_message()
+	protected function _get_mime_message()
 	{
 		return "This is a multi-part message in MIME format.".$this->newline."Your email application may not support this format.";
 	}
@@ -802,10 +802,10 @@
 	 * If the user hasn't specified his own alternative message
 	 * it creates one by stripping the HTML
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_alt_message()
+	protected function _get_alt_message()
 	{
 		if ($this->alt_message != "")
 		{
@@ -941,11 +941,11 @@
 	/**
 	 * Build final headers
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	private function _build_headers()
+	protected function _build_headers()
 	{
 		$this->_set_header('X-Sender', $this->clean_email($this->_headers['From']));
 		$this->_set_header('X-Mailer', $this->useragent);
@@ -959,10 +959,10 @@
 	/**
 	 * Write Headers as a string
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	void
 	 */
-	private function _write_headers()
+	protected function _write_headers()
 	{
 		if ($this->protocol == 'mail')
 		{
@@ -994,10 +994,10 @@
 	/**
 	 * Build Final Body and attachments
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	void
 	 */
-	private function _build_message()
+	protected function _build_message()
 	{
 		if ($this->wordwrap === TRUE  AND  $this->mailtype != 'html')
 		{
@@ -1177,12 +1177,12 @@
 	 * Prepares string for Quoted-Printable Content-Transfer-Encoding
 	 * Refer to RFC 2045 http://www.ietf.org/rfc/rfc2045.txt
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @param	integer
 	 * @return	string
 	 */
-	private function _prep_quoted_printable($str, $charlim = '')
+	protected function _prep_quoted_printable($str, $charlim = '')
 	{
 		// Set the character limit
 		// Don't allow over 76, as that will make servers and MUAs barf
@@ -1275,7 +1275,7 @@
 	 * @param	bool	// set to TRUE for processing From: headers
 	 * @return	str
 	 */
-	private function _prep_q_encoding($str, $from = FALSE)
+	protected function _prep_q_encoding($str, $from = FALSE)
 	{
 		$str = str_replace(array("\r", "\n"), array('', ''), $str);
 
@@ -1440,10 +1440,10 @@
 	/**
 	 * Unwrap special elements
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	void
 	 */
-	private function _unwrap_specials()
+	protected function _unwrap_specials()
 	{
 		$this->_finalbody = preg_replace_callback("/\{unwrap\}(.*?)\{\/unwrap\}/si", array($this, '_remove_nl_callback'), $this->_finalbody);
 	}
@@ -1453,10 +1453,10 @@
 	/**
 	 * Strip line-breaks via callback
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _remove_nl_callback($matches)
+	protected function _remove_nl_callback($matches)
 	{
 		if (strpos($matches[1], "\r") !== FALSE OR strpos($matches[1], "\n") !== FALSE)
 		{
@@ -1471,10 +1471,10 @@
 	/**
 	 * Spool mail to the mail server
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	bool
 	 */
-	private function _spool_email()
+	protected function _spool_email()
 	{
 		$this->_unwrap_specials();
 
@@ -1516,10 +1516,10 @@
 	/**
 	 * Send using mail()
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	bool
 	 */
-	private function _send_with_mail()
+	protected function _send_with_mail()
 	{
 		if ($this->_safe_mode == TRUE)
 		{
@@ -1553,10 +1553,10 @@
 	/**
 	 * Send using Sendmail
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	bool
 	 */
-	private function _send_with_sendmail()
+	protected function _send_with_sendmail()
 	{
 		$fp = @popen($this->mailpath . " -oi -f ".$this->clean_email($this->_headers['From'])." -t", 'w');
 
@@ -1591,10 +1591,10 @@
 	/**
 	 * Send using SMTP
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	bool
 	 */
-	private function _send_with_smtp()
+	protected function _send_with_smtp()
 	{
 		if ($this->smtp_host == '')
 		{
@@ -1660,11 +1660,11 @@
 	/**
 	 * SMTP Connect
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	private function _smtp_connect()
+	protected function _smtp_connect()
 	{
 		$this->_smtp_connect = fsockopen($this->smtp_host,
 										$this->smtp_port,
@@ -1687,12 +1687,12 @@
 	/**
 	 * Send SMTP command
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @param	string
 	 * @return	string
 	 */
-	private function _send_command($cmd, $data = '')
+	protected function _send_command($cmd, $data = '')
 	{
 		switch ($cmd)
 		{
@@ -1754,10 +1754,10 @@
 	/**
 	 *  SMTP Authenticate
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	bool
 	 */
-	private function _smtp_authenticate()
+	protected function _smtp_authenticate()
 	{
 		if ( ! $this->_smtp_auth)
 		{
@@ -1808,10 +1808,10 @@
 	/**
 	 * Send SMTP data
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	bool
 	 */
-	private function _send_data($data)
+	protected function _send_data($data)
 	{
 		if ( ! fwrite($this->_smtp_connect, $data . $this->newline))
 		{
@@ -1829,10 +1829,10 @@
 	/**
 	 * Get SMTP data
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_smtp_data()
+	protected function _get_smtp_data()
 	{
 		$data = "";
 
@@ -1854,10 +1854,10 @@
 	/**
 	 * Get Hostname
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_hostname()
+	protected function _get_hostname()
 	{
 		return (isset($_SERVER['SERVER_NAME'])) ? $_SERVER['SERVER_NAME'] : 'localhost.localdomain';
 	}
@@ -1867,10 +1867,10 @@
 	/**
 	 * Get IP
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @return	string
 	 */
-	private function _get_ip()
+	protected function _get_ip()
 	{
 		if ($this->_IP !== FALSE)
 		{
@@ -1933,11 +1933,11 @@
 	/**
 	 * Set Message
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	private function _set_error_message($msg, $val = '')
+	protected function _set_error_message($msg, $val = '')
 	{
 		$CI =& get_instance();
 		$CI->lang->load('email');
@@ -1957,11 +1957,11 @@
 	/**
 	 * Mime Types
 	 *
-	 * @access	private
+	 * @access	protected
 	 * @param	string
 	 * @return	string
 	 */
-	private function _mime_types($ext = "")
+	protected function _mime_types($ext = "")
 	{
 		$mimes = array(	'hqx'	=>	'application/mac-binhex40',
 						'cpt'	=>	'application/mac-compactpro',
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 10e99cb..fe5a67d 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -89,6 +89,8 @@
 			<li>Altered Session to use a longer match against the user_agent string. See upgrade notes if using database sessions.</li>
 			<li class="reactor">Added <kbd>is_unique</kbd> to the <a href="libraries/form_validation.html">Form Validation library</a>.</li>
 			<li class="reactor">Added <kbd>$this->db->set_dbprefix()</kbd> to the <a href="database/queries.html">Database Driver</a>.</li>
+			<li class="reactor">Changed <kbd>$this->cart->insert()</kbd> in the <a href="libraries/cart.html">Cart Library</a> to return the Row ID if a single item was inserted successfully.</li>
+			<li class="reactor">Added <kbd>$this->load->get_var()</kbd> to the <a href="libraries/loader.html">Loader library</a> to retrieve global vars set with <kbd>$this->load->view()</kbd> and <kbd>$this->load->vars()</kbd>.</li>
 		</ul>
 	</li>
 </ul>
@@ -101,6 +103,7 @@
 	<li>Fixed a bug (Reactor #231) where Sessions Library database table example SQL did not contain an index on last_activity. See <a href="installation/upgrade_203.html">Upgrade Notes</a>.</li>
 	<li>Fixed a bug (Reactor #229) where the Sessions Library example SQL in the documentation contained incorrect SQL.</li>
 	<li>Fixed a bug (Core #340) where when passing in the second parameter to $this->db->select(), column names in subsequent queries would not be properly escaped.</li>
+	<li class="reactor">Fixed a bug where the method <kbd>$this->cart->total_items()</kbd> from <a href="libraries/cart.html">Cart Library</a> now returns the sum of the quantity of all items in the cart instead of your total count.</li>
 </ul>
 
 <h2>Version 2.0.2</h2>
diff --git a/user_guide/libraries/cart.html b/user_guide/libraries/cart.html
index f084d5d..81b43e3 100644
--- a/user_guide/libraries/cart.html
+++ b/user_guide/libraries/cart.html
@@ -61,7 +61,7 @@
 <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>
+<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>
@@ -106,20 +106,19 @@
 <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.
+<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>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>
+<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>
+
+<p>The insert() method will return the $rowid if you successfully insert a single item.</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>
+<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>
@@ -265,11 +264,11 @@
 
 </code>
 
-<p><strong>What is a Row ID?</strong>&nbsp; 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
+<p><strong>What is a Row ID?</strong>&nbsp; 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
+<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
@@ -311,7 +310,7 @@
 
 <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>$this->cart->contents()</dfn>, since you must pass the <kbd>rowid</kbd> to this function, as shown in the <dfn>Displaying the Cart</dfn> example above.</p>
+<p>Returns TRUE (boolean) if a particular row in the cart contains options. This function is designed to be used in a loop with <dfn>$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>
@@ -322,7 +321,7 @@
 
 <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>
+<p>Permits you to destroy the cart. This function will likely be called when you are finished processing the customer's order.</p>
 
 
 
diff --git a/user_guide/libraries/loader.html b/user_guide/libraries/loader.html
index 1d93af5..a472730 100644
--- a/user_guide/libraries/loader.html
+++ b/user_guide/libraries/loader.html
@@ -175,6 +175,12 @@
 </p>
 
 
+<h2>$this->load->get_var(<samp>$key</samp>)</h2>
+
+<p>This function checks the associative array of variables available to your views. This is useful if for any reason a var is set in a library or another controller method using $this->load->vars().
+</p>
+
+
 <h2>$this->load->helper('<var>file_name</var>')</h2>
 <p>This function loads helper files, where <var>file_name</var> is the name of the file, without the <kbd>_helper.php</kbd> extension.</p>