CodeIgniter Template

Template.php

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Template {

	/**
	 * CI Object
	 *
	 * @access 	protected
	 * @var 	object
	 */
	protected $_ci = null;
	
	/**
	 * Constructor
	 *
	 * @uses 	get_settings
	 * @return 	void
	 */
	function __construct()
	{
		$this->_ci =& get_instance();;
	}

	// ------------------------------------------------------------------------
	
	/**
	 * Test if a template file exists
	 *
	 * @access	public
	 * @param	string
	 * @return	bool
	 */
	protected function test_exists($file)
	{
		$file = 'themes/'.$file;
		if ( ! file_exists($file))
		{
			return false;
		}
		return true;
	}
	
	// ------------------------------------------------------------------------
	
	/**
	 * Load Body Template
	 *
	 * This method is used to load the body template file. Can be used without layout
	 * for emails, printer, etc...
	 *
	 * @access	protected
	 * @param	string	the template body file.
	 * @param	string	the directory - admin or front.
	 * @param	array 	data array
	 * @uses	test_exists
	 * @return	object 	I think
	 */
	protected function load_body($template, $dir='front', $data)
	{
		$body_file = $dir.'/'.$data['settings']['template'].'/'.$template.'.php';
		
		if ($this->test_exists($body_file))
		{
			return $this->_ci->load->view($body_file, $data, true);
		}
		else
		{
			return $this->_ci->load->view($dir.'/default/'.$template, $data, true);
		}
	}
	
	// ------------------------------------------------------------------------
	
	/**
	 * Load layout Template
	 *
	 * This method is used to load the layout template file. 
	 *
	 * @access	protected
	 * @param	string	the directory - admin or front.
	 * @param	array 	data array
	 * @uses	test_exists
	 * @return	object
	 */
	protected function load_layout($dir='front', $data)
	{
		$layout_file = $dir.'/'.$data['settings']['template'].'/layout.php';
		
		if ($this->test_exists($layout_file))
		{
			return $this->_ci->load->view($layout_file, $data);
		}
		else
		{
			return $this->_ci->load->view($dir.'/default/layout.php',$data);
		}
	}
	
	// ------------------------------------------------------------------------
	
	/**
	 * Template Display
	 *
	 * Displays a template based off the current settings
	 * Basically a wrapper for layout
	 *
	 * <code>
	 * $this->init_model->display('category', $data);
	 * </code>
	 *
	 * @access	public
	 * @param	string	the template body file
	 * @param	array	the data to pass
	 * @param	string	The directory. front or admin (Defaults to front)
	 * @uses	get_setting
	 * @uses	load_body
	 * @uses	test_exists
	 */
	public function display($template, $data='', $dir='front')
	{
		// meta content
		if ( ! isset($data['title']))
		{
			$data['title'] = $this->get_setting('site_name');
		}
		if ( ! isset($data['meta_keywords']))
		{
			$data['meta_keywords'] = $this->get_setting('site_keywords');
		}
		if ( ! isset($data['meta_description']))
		{
			$data['meta_description'] = $this->get_setting('site_description');
		}
		
		// Check the body exists
		$data['body'] = $this->load_body($template, $dir, $data);
		
		// Now check the layout exists
		$this->load_layout($dir, $data);
	}
}