<?php defined('SYSPATH') or die('No direct access allowed.');

/**
 * This class extends Kohana's [ORM] class to create defaults for TSM.
 *
 * @package    PTA
 * @subpackage Core
 * @category   ORM
 * @author     Deon George
 * @copyright  (c) 2010 phpTSMadmin Development Team
 * @license    http://dev.osbill.net/license.html
 */
class ORMTSM extends ORM {
	// Suppress ORMs inclusion of <table_name>.*
	protected $_disable_wild_select = TRUE;
	// Suppress ORMs inclusion of <table_name>. to column joins
	protected $_disable_join_table_name = TRUE;
	// Suppress ORMs use of limit
	protected $_disable_limit = TRUE;
	// To enable effective caching, this must disabled.
	protected $_reload_on_wakeup = FALSE;

	// Enable the formating of columns
	protected $_object_formated = array();
	protected $_formated = FALSE;
	protected $_formats = array();

	public function __construct($id = NULL) {
		parent::__construct($id);

		// We'll cache our query results
		if ($c = $this->_db->caching($this->_table_name))
			$this->cached($c);
	}

	/**
	 * Proxy method to Database list_columns.
	 * This enables caching of the list_columns queries. Since this doesnt
	 * we hard code the cache to 7 days.
	 *
	 * @return array
	 */
	public function list_columns() { 
		// We'll cache our query results
		if ($this->_db->caching('SCHEMA')) {
			// Set the cache key based on the database instance name and SQL
			$cache_key = 'Database::query(LC:'.$this->_table_name.')';
 
			if ($result = Cache::instance()->get($cache_key))
				// Return a cached result
				return $result;
		}

		// Proxy to database
		$result = $this->_db->list_columns($this->_table_name);

		// Cache the result array
		if (isset($cache_key))
			Cache::instance()->set($cache_key, $result, 604800);

		return $result;
	}

	// Load our values into the ORM object
	public function load_object(array $values) {
		return parent::_load_values($values);
	}

	public static function date($date,$format) {
		return $date ? date($format,strtotime($date)) : '';
	}
}
?>