symfony2: how to access service from template

If I created a service is there a way to access it from twig, without creating a twig.extension?

Answer

You can set the service a twig global variable in config.yml, e.g

#app/config/config.yml
twig:
    globals:
        your_service: "@your_service"

And in your template.html.twig file you can invoke your service this way:

{{ your_service.someMethod(twig_variable) }}

See here.