Question

I want add my control code before rendering template.

Example:
Have templates:
user.html.twig

Controller:

return $this->render('....:user.html.twig', array(/* variables */))

I want add other variables before rendering template.

Answer 1

Solution this problem:

Create a new Twig extension and register this extension.

Example:

Twig extension:

class UserExtension extends \Twig_Extension
{
  /**
   * Get globals variables
   *
   * @return array
   */
  public function getGlobals()
  {
    return array(
      // Other variables
    );
  }
}

Register extension as service.

<service id="sps.twig.user_extension" class="SPS\Bundles\HomeBundle\Twig\Extensions\UserExtension">
  <tag name="twig.extension" />
</service>