FuelPHP Forums

Hi everyone, This is a question I've been stumbling upon today and haven't been able to find a solution anywhere nor figure one out myself, hope I didn't miss it out. I followed this simple yet very efficient tutorial to truly "install" Twig in FuelPHP : http://yasbas.com/docspro/2011/10/25/enabling-twig-in-fuelphp/ Now I'm trying to figure out the best way to make use of a custom Twig extension. I'll just explain what I've done yet and I'd be pleased to get some feedback about it, as I'm pretty new to Fuel I guess I can learn something useful here. 1) Wrote the extension code itself fuel/app/classes/twig/tom/extension.php ("Tom" being my extension name) :

<?php

namespace Parser;

use Twig_Extension;
use Twig_Function_Function;
use Twig_Function_Method;

/**
 * Nevermind the bullsh*t in there, it's just a test.
 */
class Twig_Tom_Extension extends Twig_Extension
{
 /**
  * Gets the name of the extension.
  *
  * @return  string
  */
 public function getName()
 {
  return 'tom';
 }

 /**
  * Sets up all of the functions this extension makes available.
  *
  * @return  array
  */
 public function getFunctions()
 {
  return array(
   'myfilter'        => new Twig_Function_Method($this, 'myfilterfunction')
  );
 }

 public function myfilterfunction($s)
 {
  return md5($s);
 }
}

2) Copied /fuel/packages/parser/config/parser.php file to /fuel/app/config/parser.php (overriding it) and declared my extension in it :

'View_Twig' => array(
  'include' => APPPATH.'vendor'.DS.'Twig'.DS.'Autoloader.php',
  'auto_encode' => true,
  'views_paths' => array(APPPATH.'views'),
  'delimiters' => array(
   'tag_block'     => array('left' => '{%', 'right' => '%}'),
   'tag_comment'   => array('left' => '{#', 'right' => '#}'),
   'tag_variable'  => array('left' => '{{', 'right' => '}}'),
  ),
  'environment' => array(
   'debug'                => false,
   'charset'              => 'utf-8',
   'base_template_class'  => 'Twig_Template',
   'cache'                => APPPATH.'cache'.DS.'twig'.DS,
   'auto_reload'          => true,
   'strict_variables'     => false,
   'autoescape'           => false,
   'optimizations'        => -1,
  ),
  'extensions' => array(
   'Twig_Fuel_Extension',
   'Twig_Tom_Extension'
  ),
 ),

3) Edited /fuel/app/config/config.php to add my class in always_load.classes. Not sure I'm supposed to do so, but if I don't Fuel is unable to find my extension's class (which makes sense in the end). There, when I try it, my extension's correctly loaded but I end up with a wonderful :

ErrorException [ Error ]: Class 'Twig_Extension' not found

I'm pretty sure it's a namespace issue or something, I have to admit I'm not very comfortable with this yet so I don't really know what to change to make it work. I might as well be in a totally wrong direction... Thanks in advance to anyone who will help me sort it out, I love Fuel so far and I love Twig as well so I'd really enjoy be able to use Twig at its full power along with Fuel !