In Symfony where do I register a custom DQL function?

Question

I have read here how to do a custom DQL function. But in what file do I put the register function part ? I couldn't find this in the documentation.

Answer 1

I've found it.

You can register it on config.yml

doctrine:
    orm:
        dql:
            numeric_functions:
                INT: YourProject\YourBundle\Folder\CastAsInteger