Mustache.php

<?php
if (! defined ( 'BASEPATH' ))
	exit ( 'No direct script access allowed' );
require_once APPPATH . '/third_party/src/Mustache/Autoloader.php';
Mustache_Autoloader::register ();

/**
 * helper library for Mustache.
 * This library must be located in third_party folder.
 * You can use like this:
 *
 * In controller:
 *
 * $data = array (
 * 'title' => 'bob's page'
 * );
 * $this->mustache->render ('home', $data); // assumed you have home.php and home.html(template)
 *
 * In view:
 *  paste below in home.php
 *     <?php echo $M_PLATE 
 *     
 * Even if phpfile doesn't exist, it can find only template file and render it by echo().
 *
 * @author lzy
 *        
 */
class Mustache {
	private $m;
	private $CI;
	
	// template's extention you use
	private $EXTENSION = ".mustache";
	
	// it is used when you declare using template in php view file
	// like <?php echo $M_PLATE
	private $TEMPLATE = "M_PLATE";
	
	// resource path
	private $RESOURCE_FOLDER;
	
	// path where templatefiles are
	private $VIEW_FOLDER;
	
	/**
	 * Constractor can be autoloaded per request in application/config/config.php
	 */
	function __construct() {
		// Set folder path.
		// Default resource folder is located in the folder
		// where index.php is.
		$this->RESOURCE_FOLDER = 'resources';
		$this->VIEW_FOLDER = APPPATH . 'views';
		
		$params = array (
				'loader' => new Mustache_Loader_FilesystemLoader ( $this->VIEW_FOLDER, array (
						'extension' => $this->EXTENSION 
				) ) 
		);
		$this->m = new Mustache_Engine ( $params );
		
		$this->CI = get_instance ();
	}
	/**
	 * You can get instance for using manually ,but
	 * you can also call new Mustache_Engine instance directlly from anywhere.
	 */
	function getInst() {
		return $this->m;
	}
	/**
	 * Render template by view's filename.
	 * Name must be same between phpfile and templatefile.
	 *
	 * Even if phpfile doesn't exist, it can find only template file and render it by echo().
	 *
	 * @param unknown $viewName
	 *        	phpfile and templatefile's name in view folder
	 * @param unknown $templateData        	
	 * @param string $options
	 *        	it is second parameter of load->view method used in controller
	 */
	function render($viewName, $templateData, $options = NULL) {
		$data = array ();
		if (isset ( $options )) {
			$data = $options;
		}
		
		$templateData ['resource'] = $this->RESOURCE_FOLDER;
		
		$data [$this->TEMPLATE] = $this->m->render ( $viewName, $templateData );
		$viewFilePath = $this->VIEW_FOLDER . '/' . $viewName . '.php';
		if (file_exists ( $viewFilePath )) {
			$this->CI->load->view ( $viewName, $data );
		} else {
			echo $data [$this->TEMPLATE];
		}
	}
}