Rich Domain Model with Symfony2 and Doctrine2

Leonardo Proietti@_leopro_

Rich Domain Model with Symfony2 and Doctrine2

Leonardo Proietti@_leopro_

Symfony Day ItalyMilan, 10 October 2014

twitter.com/_leopro_linkedin.com/in/leonardoproiettigithub.com/leopro

1. Domain Modeling

domain model = solution space

domain = problem space

Domain

A Domain [...] is what an organization does and the world it does in.

(Vaughn Vernon, Implementing Domain-Driven Design)

Domain Model

A model is a simplification. It is an interpretation of reality that abstracts the aspects relevant to solving problem at hand and ignores extraneous detail.

(Eric Evans, "Domain Driven Design")

A model is a simplification. It is an interpretation of reality that abstracts the aspects relevant to solving problem at hand and ignores extraneous detail.

A model

Domain Model

In DDD, domain model refers to a class.

(Julie Lerman, http://msdn.microsoft.com/en-us/magazine/dn385704.aspx)

Domain Model

An object model of the domain that incorporates both behavior and data.

(Martin Fowler, http://martinfowler.com/eaaCatalog/domainModel.html)

Domain Model

An object model of the domain that incorporates both behavior and data.

(Martin Fowler, http://martinfowler.com/eaaCatalog/domainModel.html)

Why Rich?

First, because its not anemicMartin Fowlerhttp://martinfowler.com/bliki/AnemicDomainModel.html