Twig extend template on condition

Question

I use Symfony 2 with Twig and my question is pretty straightforward:

In a view I want to extend one of the layouts based on a variable. If the variable is fals

Answer 1

Answer from the official documentation:

Conditional Inheritance

As the template name for the parent can be any valid Twig expression, it's possible to make the inheritance mechanism conditional:

{% extends standalone ? "minimum.html" : "base.html" %}

In this example, the template will extend the "minimum.html" layout template if the standalone variable evaluates to true, and "base.html" otherwise.