Zend Framework 2 + Doctrine 2 skeletal application

For some time I have been playing with ZF2 and Doctrine 2, and I find them great. I do not have much experience working with them, but I studied several tutorials and sample applications. They gave me some idea of ​​libraries, but I don’t feel comfortable with things like DQL and purging EM in the controller. I understand that ZF2 is still a beta, but I hope there is a piece of code that shows a scalable structure that can be a skeleton of a real-life application. Share your experience and, if possible, indicate the source code of the example.

Relationships Valentin