Doctrine 2在MVC ZF2环境中扮演什么角色？

Question

I'm trying to teach myself ZF2 in conjunction with Doctrine 2. I've completed both the Album tutorial and Blog Tutorial on Zend's website successfully. Now I'm trying to go back and convert the Blog Tutorial to use Doctrine 2. I believe I've successfully setup my config for doctrine and used DI to get it inside of my controller (WriteController.php) since I am able to dump the contents of it within my action. I don't get any errors so long as I don't do anything with it.

My question is what roll does Doctrine take in the Controller -> Service -> Mapper -> Backend layered structure which was taught in the Blog tutorial? (Reference To what I mean)

Also, I'm assuming Backend is referring to my Models. Is this correct?

Would I just replace any references to /Blog/Model/Post with /Blog/Entity/Blog?

Answer 1

The Doctrine is the Mapper. And maybe we could say also the Service (through EntityRepository). But usually you will create your own Service Layer.

The Backend is not the entities it self. Entities in one way to map the several options of backend. As backend you can understand the several options of Relational Databases (Mysql, SqlServer, Oracle, etc) NoSql Databases (like MongoDB), file system and so on.

I didn't understand your last question. But when I use Doctrine I always create my entities in /MyModule/Entity namespace. While when I use the standart Zend/Db I always create in /MyModule/Model. I do that by standardizing matters.