How to load a template from full path in the template engine TWIG

Question

I\'m wondering how to load a template from it\'s full path (like FILE constant give).

Actually you have to set a \"root\" path for template like thi

Answer 1

This works for me (Twig 1.x):

final class UtilTwig
{
    /**
     * @param string $pathAbsTwig
     * @param array $vars
     * @return string
     * @throws \Twig\Error\LoaderError
     * @throws \Twig\Error\RuntimeError
     * @throws \Twig\Error\SyntaxError
     */
    public static function renderTemplate(string $pathAbsTwig, array $vars)
    {
        $loader = new Twig_Loader_Filesystem([''], '/');
        $twig = new Twig_Environment($loader);
        $template = $twig->loadTemplate($pathAbsTwig);
        $mailBodyHtml = $template->render($vars);

        return $mailBodyHtml;
    }
}

Usage:

$htmlBody = UtilTwig::renderTemplate('/absolute/path/to/template.html.twig', [
    'some' => 'var', 
    'foo' => 'bar'
]);

Answer 2

Here is a loader that load an absolute (or not) path given :

<?php


class TwigLoaderAdapter implements Twig_LoaderInterface
{
    protected $paths;
    protected $cache;

    public function __construct()
    {

    }

    public function getSource($name)
    {
        return file_get_contents($this->findTemplate($name));
    }

    public function getCacheKey($name)
    {
        return $this->findTemplate($name);
    }

    public function isFresh($name, $time)
    {
        return filemtime($this->findTemplate($name)) < $time;
    }

    protected function findTemplate($path)
    {
        if(is_file($path)) {
            if (isset($this->cache[$path])) {
                return $this->cache[$path];
            }
            else {
                return $this->cache[$path] = $path;
            }
        }
        else {
            throw new Twig_Error_Loader(sprintf('Unable to find template "%s".', $path));
        }
    }

}

?>

Answer 3

Just do that:

$loader = new Twig_Loader_Filesystem('/');

So that ->loadTemplate() will load templates relatively to /.

Or if you want to be able to load templates both with relative and absolute path:

$loader = new Twig_Loader_Filesystem(array('/', '/path/to/templates'));

Answer 4

Extend the loader better than modify the library:

<?php

/**
 * Twig_Loader_File
 */
class Twig_Loader_File extends Twig_Loader_Filesystem
{
    protected function findTemplate($name)
    {
        if(isset($this->cache[$name])) {
            return $this->cache[$name];
        }

        if(is_file($name)) {
            $this->cache[$name] = $name;
            return $name;
        }

        return parent::findTemplate($name);
    }
}