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

问题

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 this :

require_once '/path/to/lib/Twig/Autoloader.php';
Twig_Autoloader::register();

$loader = new Twig_Loader_Filesystem('/path/to/templates');
$twig = new Twig_Environment($loader, array(
   'cache' => '/path/to/compilation_cache',
));

And then :

$template = $twig->loadTemplate('index.html');
echo $template->render(array('the' => 'variables', 'go' => 'here'));

I want to call the loadTemplate method with a full path and not the just the name of the file.

How can i do ?

I don't want to create my own loader for such an thing..

Thanks

回答1:

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'));

回答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));
        }
    }

}

?>

回答3:

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);
    }
}

来源：https://stackoverflow.com/questions/7064914/how-to-load-a-template-from-full-path-in-the-template-engine-twig

标签

php

templates

template-engine

twig