Symfony 3，这样的全局控制器？

Question

I'm sorry for the code-less-ness of this question but is there like a global controller that fires for every website page?

Like for instance on 90% of my websites content I want to have a "recent comments" feed printing all the latest comments from the database.

In which file/function could I define such functionality without having to print it in every controller?

Answer 1

There is no such thing as a global controller in Symfony. preDispatch and postDispatch are gone long time ago.

Nowadays everything is done with events.

If you want to run some code before the controller is executed you should add a listener to kernel.controller event. See details about events in Symfony documentation.

This is the detailed explanation how to do it.

But...

In your case I don't think it is needed to do this. Instead you can use Twig Etensions. Set up the extension as a service (with all dependencies). Call it in the place where you need to show "recent comments". I think that in your case Twig Functions fits the best.