Silex + Doctrine ORM - can't figure it out?

Question

PHP

github.com/hell0w0rd/Test-Silex-App - repository
I don't understand how to use the console and generate a class to work with the database.
The console issues

[InvalidArgumentException]  The helper "em" is not defined.

github.com/dflydev/dflydev-doctrine-orm-service-pr... - everything is so clearly written here that nothing is clear. Apparently, I have to somehow connect the application and specify it somewhere , but I don’t understand how and where
$em = $app['orm.em'];

Answer 1

first answer from google (http://bit.ly/WvR3h6)

The CLI interface is not ./vendor/bin/doctrine, but ./vendor/bin/doctrine-module