Rename 'kohana' to 'system' to conform to the Kohana filesystem layout. I'm comfortable with us not clearly drawing the distinction about the fact that it's Kohana.

1 files changed, 236 insertions, 0 deletions

diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php
new file mode 100644
index 00000000..a8f7bb19
--- /dev/null
+++ b/system/libraries/Pagination.php
@@ -0,0 +1,236 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * Pagination library.
+ *
+ * $Id: Pagination.php 3769 2008-12-15 00:48:56Z zombor $
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class Pagination_Core {
+
+	// Config values
+	protected $base_url       = '';
+	protected $directory      = 'pagination';
+	protected $style          = 'classic';
+	protected $uri_segment    = 3;
+	protected $query_string   = '';
+	protected $items_per_page = 20;
+	protected $total_items    = 0;
+	protected $auto_hide      = FALSE;
+
+	// Autogenerated values
+	protected $url;
+	protected $current_page;
+	protected $total_pages;
+	protected $current_first_item;
+	protected $current_last_item;
+	protected $first_page;
+	protected $last_page;
+	protected $previous_page;
+	protected $next_page;
+	protected $sql_offset;
+	protected $sql_limit;
+
+	/**
+	 * Constructs and returns a new Pagination object.
+	 *
+	 * @param   array   configuration settings
+	 * @return  object
+	 */
+	public function factory($config = array())
+	{
+		return new Pagination($config);
+	}
+
+	/**
+	 * Constructs a new Pagination object.
+	 *
+	 * @param   array  configuration settings
+	 * @return  void
+	 */
+	public function __construct($config = array())
+	{
+		// No custom group name given
+		if ( ! isset($config['group']))
+		{
+			$config['group'] = 'default';
+		}
+
+		// Pagination setup
+		$this->initialize($config);
+
+		Kohana::log('debug', 'Pagination Library initialized');
+	}
+
+	/**
+	 * Sets config values.
+	 *
+	 * @throws  Kohana_Exception
+	 * @param   array  configuration settings
+	 * @return  void
+	 */
+	public function initialize($config = array())
+	{
+		// Load config group
+		if (isset($config['group']))
+		{
+			// Load and validate config group
+			if ( ! is_array($group_config = Kohana::config('pagination.'.$config['group'])))
+				throw new Kohana_Exception('pagination.undefined_group', $config['group']);
+
+			// All pagination config groups inherit default config group
+			if ($config['group'] !== 'default')
+			{
+				// Load and validate default config group
+				if ( ! is_array($default_config = Kohana::config('pagination.default')))
+					throw new Kohana_Exception('pagination.undefined_group', 'default');
+
+				// Merge config group with default config group
+				$group_config += $default_config;
+			}
+
+			// Merge custom config items with config group
+			$config += $group_config;
+		}
+
+		// Assign config values to the object
+		foreach ($config as $key => $value)
+		{
+			if (property_exists($this, $key))
+			{
+				$this->$key = $value;
+			}
+		}
+
+		// Clean view directory
+		$this->directory = trim($this->directory, '/').'/';
+
+		// Build generic URL with page in query string
+		if ($this->query_string !== '')
+		{
+			// Extract current page
+			$this->current_page = isset($_GET[$this->query_string]) ? (int) $_GET[$this->query_string] : 1;
+
+			// Insert {page} placeholder
+			$_GET[$this->query_string] = '{page}';
+
+			// Create full URL
+			$base_url = ($this->base_url === '') ? Router::$current_uri : $this->base_url;
+			$this->url = url::site($base_url).'?'.str_replace('%7Bpage%7D', '{page}', http_build_query($_GET));
+
+			// Reset page number
+			$_GET[$this->query_string] = $this->current_page;
+		}
+
+		// Build generic URL with page as URI segment
+		else
+		{
+			// Use current URI if no base_url set
+			$this->url = ($this->base_url === '') ? Router::$segments : explode('/', trim($this->base_url, '/'));
+
+			// Convert uri 'label' to corresponding integer if needed
+			if (is_string($this->uri_segment))
+			{
+				if (($key = array_search($this->uri_segment, $this->url)) === FALSE)
+				{
+					// If uri 'label' is not found, auto add it to base_url
+					$this->url[] = $this->uri_segment;
+					$this->uri_segment = count($this->url) + 1;
+				}
+				else
+				{
+					$this->uri_segment = $key + 2;
+				}
+			}
+
+			// Insert {page} placeholder
+			$this->url[$this->uri_segment - 1] = '{page}';
+
+			// Create full URL
+			$this->url = url::site(implode('/', $this->url)).Router::$query_string;
+
+			// Extract current page
+			$this->current_page = URI::instance()->segment($this->uri_segment);
+		}
+
+		// Core pagination values
+		$this->total_items        = (int) max(0, $this->total_items);
+		$this->items_per_page     = (int) max(1, $this->items_per_page);
+		$this->total_pages        = (int) ceil($this->total_items / $this->items_per_page);
+		$this->current_page       = (int) min(max(1, $this->current_page), max(1, $this->total_pages));
+		$this->current_first_item = (int) min((($this->current_page - 1) * $this->items_per_page) + 1, $this->total_items);
+		$this->current_last_item  = (int) min($this->current_first_item + $this->items_per_page - 1, $this->total_items);
+
+		// If there is no first/last/previous/next page, relative to the
+		// current page, value is set to FALSE. Valid page number otherwise.
+		$this->first_page         = ($this->current_page === 1) ? FALSE : 1;
+		$this->last_page          = ($this->current_page >= $this->total_pages) ? FALSE : $this->total_pages;
+		$this->previous_page      = ($this->current_page > 1) ? $this->current_page - 1 : FALSE;
+		$this->next_page          = ($this->current_page < $this->total_pages) ? $this->current_page + 1 : FALSE;
+
+		// SQL values
+		$this->sql_offset         = (int) ($this->current_page - 1) * $this->items_per_page;
+		$this->sql_limit          = sprintf(' LIMIT %d OFFSET %d ', $this->items_per_page, $this->sql_offset);
+	}
+
+	/**
+	 * Generates the HTML for the chosen pagination style.
+	 *
+	 * @param   string  pagination style
+	 * @return  string  pagination html
+	 */
+	public function render($style = NULL)
+	{
+		// Hide single page pagination
+		if ($this->auto_hide === TRUE AND $this->total_pages <= 1)
+			return '';
+
+		if ($style === NULL)
+		{
+			// Use default style
+			$style = $this->style;
+		}
+
+		// Return rendered pagination view
+		return View::factory($this->directory.$style, get_object_vars($this))->render();
+	}
+
+	/**
+	 * Magically converts Pagination object to string.
+	 *
+	 * @return  string  pagination html
+	 */
+	public function __toString()
+	{
+		return $this->render();
+	}
+
+	/**
+	 * Magically gets a pagination variable.
+	 *
+	 * @param   string  variable key
+	 * @return  mixed   variable value if the key is found
+	 * @return  void    if the key is not found
+	 */
+	public function __get($key)
+	{
+		if (isset($this->$key))
+			return $this->$key;
+	}
+
+	/**
+	 * Adds a secondary interface for accessing properties, e.g. $pagination->total_pages().
+	 * Note that $pagination->total_pages is the recommended way to access properties.
+	 *
+	 * @param   string  function name
+	 * @return  string
+	 */
+	public function __call($func, $args = NULL)
+	{
+		return $this->__get($func);
+	}
+
+} // End Pagination Class
\ No newline at end of file