How to call a helper in a Twig template?

Question

Kohana

Hello!

I am using twig as a templating engine. Ordinary methods can be called object.method, but this does not work for static methods. Who faced such a task?

The module itself is github.com/tommcdo/kohana-twig

Answer 1

I decided! While with hardcode. Create class in folder /application/classes/Twig.php:

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

class Twig extends Kohana_Twig {

    protected static function env()
    {
        // Instantiate the base Twig environment from parent class.
        $env = parent::env();

        // Customize as needed.
        $env->addFunction('base_url', new Twig_Function_Function('URL::base'));

        return $env;
    }

} // End Twig

We call the helper in the template:

{% block content %}
   {{ base_url() }}
{% endblock %}

The result will be -/kohana/

Answer 2

Twig is very customizable, you can write your own extension, in which you can add your own functions, filters, post-processors, and whatever.
Even the basic functions of Twig are highlighted in it in the Core extension, you can see how it is done. And read the documentation, it is very short and understandable.