yvoyer / calculation-example Goto Github PK

Actually @yvoyer I don't understand this part enough yet.

In my example:
https://gist.github.com/yvoyer/a778ac744ddf10012864#file-dormercalculation-php
you suggested to use a factory method to add my a price - see lines 44 to 47.

ATM I have a similar scenario. A Customer ( <=> DormerCalculation) has an Order ( <=> DormerCalculationPrice).

In my first attempt the Handler created the Order. The constructor of the Order required the Customer.

After a while I thought about your example and read the "Factory method on aggregate root" chapter in the red book. In the example a Forum adds a Post / Discussion via factory method.
The advantage is too check if the forum wasn't already closed.

My problem is not so much deciding on which technique to choose. It's more about the terminology.

AFAIU "factory methods" are a Domain-Driven Design approach.
But using commands and handlers originally come from the CQRS approach.

Now does the CQRS appraoch recommend to move away the "factory methods" from the Domain Model and put the logic into the Handler - the way I tried in my first attempt?

Curious about your answer!

Though there is a great DDD Google group:
https://groups.google.com/forum/#!forum/dddcqrs

I would like to add some tutorials to my blog later:
http://blog.webdevilopers.net/category/php/ddd/

Until then I would like to start some general discussion about DDD with Symfony and Doctrine and put it here:
https://github.com/webdevilopers/php-ddd/blob/master/README.md

Is there any way to move issues between repos on github @yvoyer ?