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Where in Symfony2 is template rendering launched?
I am asking for the most general class/method handling the template logic, I guess by launching the configured template engine, like Twig for example.
Or to put the question even more concretely … a controller delegates the layout to a specific template, like example.html.twig … where is this filename used and passed for the first time?
In the most general case, assuming you’re using the FrameworkBundle (if you’re using Standard Edition, you are), the
renderfunction just calls$this->container->get('templating')->renderResponse, just passing along the parameters.Engines (like the twig engine) implement
Symfony\Component\Templating\EngineInterface.You can check out
vendor/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php(and the other relevant files, like the ones in the TwigBundle), if you’d like to take a close look at how it works.