Cannot Access Methods of $this-object

[ghost]

I set up Yii2 with smarty extension.

Now I am trying to simply convert the layouts/main.php file to a smarty template. For that I need access to the current yii\web\View object which is given from the extension as $this-smarty-variable.

I've validated that the smarty $this variable was the same as the view-object through var_dump()-ing and comparing both.

Problem

According to the smarty3 docs I should be able to call a method on the $this-object from smarty templates like this: {var_dump($this->head())}.

Applying the above script in a template just always returns NULL which let me guess that no method call had happen.

Question

How can I call a method from an object which is given to smarty from PHP ?

1. Define variable for use in smarty: $template->assign('app', \Yii::$app);
2. Call method on variable in smarty template: {$app->getSession();}

What am I doing wrong ?
(my current smarty layout: pastebin)

If this is no issue to Yii2-Smarty

I'm sorry if this doesn't affect Yii2-Smarty at all but I cant figure out what/why it is not working since this code should work according to Yii2-Smarty and Smarty itself.

I've also asked this question on stackoverflow though nobody has yet answered.

[cebe]

Applying the above script in a template just always returns NULL which let me guess that no method call had happen.

the head() method does not return anything so if you see null that is correct: http://www.yiiframework.com/doc-2.0/yii-web-view.html#head%28%29-detail

You can call the method like this:

{$this->head()}

[ghost]

Okey, but then how do I include the assets from my project in the layout/main.tpl ?
Thought it were done through the yii\web\View::head() method but now I can't find it.

[cebe]

the head method does that, but it does not return them, it sets a marker that is later replaced.