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mchristie

Hi, I'm trying to parse a string with Twig (as apposed to loading a file as view::forge does).
I can't see any fuel functions that would do this, and I cant work out how to do this direction with Twig? I think I need to be using something like this (form Twig docs), but PHP says Twig_Loader_String isnt found:
$loader = new Twig_Loader_String(); If it makes a difference, I'm doing this in a task run from command line.

Davide Bellini

I think I need to be using something like this (form Twig docs), but PHP says Twig_Loader_String isnt found:
$loader = new Twig_Loader_String();

Because you haven't create a Twig instance ... so use the View_Twig::parser() method to create a get this. Try to use this code :

$twig = \Parser\View_Twig::parser();
$twig->setLoader(new Twig_Loader_String());

$string = $twig->loadTemplate('{{ test_string }}')->render(array('test_string' => 'FuelPHP is awesome!!!'));
\Debug::dump($string);

mchristie

Davide Bellini wrote on Wednesday 14th of December 2011:
I think I need to be using something like this (form Twig docs), but PHP says Twig_Loader_String isnt found:
$loader = new Twig_Loader_String();

Because you haven't create a Twig instance ... so use the View_Twig::parser() method to create a get this. Try to use this code :
$twig = \Parser\View_Twig::parser();
$twig->setLoader(new Twig_Loader_String());

$string = $twig->loadTemplate('&#123;&#123; test_string }}')->render(array('test_string' => 'FuelPHP is awesome!!!'));
\Debug::dump($string);

Thanks for this reply, that code didn't work though. I get the error
"Error: Argument 1 passed to Twig_Environment::setLoader() must implement interface Twig_LoaderInterface, null given" I searched the whole project for 'Twig_Loader_String' and the only instance is where I'm using it... (I do have Twig installed properly, it's working everywhere else!)

Davide Bellini

Please post your code ... where are you put my example? in a controller?
Have you add "parser" in config/config.php -> "always_load" => "packages" array?

mchristie

Davide Bellini wrote on Wednesday 14th of December 2011:

Please post your code ... where are you put my example? in a controller?
Have you add "parser" in config/config.php -> "always_load" => "packages" array?

I'm running this in a class loaded by a task, run from command line (it's for sending email as a cron job). This is basically all the code in the function:

$tags = array();
foreach ($params as $p) {
 foreach ($p as $key => $val) $tags[$key] = $val;
}
$twig = \Parser\View_Twig::parser();
$twig->setLoader(new Twig_Loader_String());

$string = $twig->loadTemplate( $string )->render( $tags );
return $string;

Yip, parser is in the always_load>packages array. The error is 'Argument 1 passed to Twig_Environment::setLoader() must implement interface Twig_LoaderInterface, null given', if I try to debug 'new Twig_Loader_String()' I get the error that 'Twig_Loader_String' does not exist. When I search for it, it doesn't seem to be in the project at all.

yoshizmo

I'm pretty sure the Twig parser is not included in Fuel PHP, just the extension to enable its use. Get twig from: https://github.com/fabpot/Twig/tags Place it in: Fuel/packages/parser/vendor/Twig Hope that works This guide is a little out of date but should help:
http://yasbas.com/docspro/2011/10/25/enabling-twig-in-fuelphp/

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