The Secret Recipe of a Juicy M

International PHP Conference 2010, Mainz

Robert Lemke

The Secret Recipe for a Juicy M

Montag, 11. Oktober 2010

Robert Lemkechief architect of TYPO3 Phoenix and FLOW3

co-founder of the TYPO3 Association

34 years old

lives in Lübeck, Germany

1 wife, 1 daughter, 1 espresso machine

likes drumming


= PHP 5.3 Full Stack Application Framework


The Secret Recipe for a Juicy M International PHP Conference 2010, Mainz

The FLOW3 ExperienceFlow [flō] The mental state of operation in which the person is fully immersed in what he or she is doing by a feeling of energized focus, full involvement, and success in the process of the activity. Proposed by positive psychologist Mihály Csíkszentmihályi, the concept has been widely referenced across a variety of fields.

FLOW3 [flō'three] The application framework which takes care of all hassle and lets you play the fun part.


http://encarta.msn.com/encnet/features/dictionary/Pronounce.aspx?search=three

http://encarta.msn.com/encnet/features/dictionary/Pronounce.aspx?search=three

OOP Object-Oriented Programming

AOP Aspect-Oriented Programming

MVC Model View Controller

POPO Plain Old PHP Object

DI Dependency Injection DRY

YAGNI

CoC

TDD

YAA

DDD Domain-Driven Design



Domain-Driven Design

lightblue.com

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DomainDesign



Domain: The activity or business of the user



GoalTo solve real problems of a real domain



Domain-Driven Design



Domain-Driven Designfocus on the domain and domain logic




accurately map the domain concepts to software




accurately map the domain concepts to software

form a ubiquitous language among the project members



Ubiquitous languagea common vocabulary: important prerequisite for successful collaboration

use same words for

discussionmodelingdevelopmentdocumentation

class FlagshipStore {

...

public function isProfitable() { return ($this->earnings > ($this->expenses + $this->safetyMargin); }

...



Layered Architecture

Presentation

Domain

Data source

Application Logic

Domain Model

View

Controller

Data Mapper (Persistence)

Data Source Abstraction



DDD Building Blocks

Entity Value Object

Aggregate

ServiceFactory

Repository



Defined by its identity (instead of its properties)

Examples: Participant, Blog Post

(you probably used artificial keys like a UUID for identifying entities in a database table)

Entity



Defined by its value

Immutable

Examples: Color, Tag

Green

Pantone 354cR: 105 / G: 165 / B: 80#69A550

Value Object

#IPC10



Actions within the domain which can'tbe implemted by entities and value objectsalone

Services should be stateless

Example: "Postpone Conference Service"

Service



Compound of Entities and Value Objects

Entity is Aggregate Root

No direct references to objects inside theAggregate from outside

Reduces complexity

Examples: Speaker Profile, Blog Post, Car ...

Aggregate



a.k.a. "where you keep things"

connection between clean domainand dirty data storage

provides query methods forretrieving domain objects

Repository


The Secret Recipe for a Juicy M International PHP Conference 2010, MainzMontag, 11. Oktober 2010


Further ReadingFLOW3 Websitehttp://flow3.typo3.org

FLOW3 Downloadhttp://flow3.typo3.org/downloadgit://git.typo3.org/FLOW3/Distributions/Base.git

TYPO3 Forgehttp://forge.typo3.org

Further Readinghttp://flow3.typo3.org/about/principles/further-reading



Questions

Email: [email protected]: http://robertlemke.de/blogTwitter: @t3rob

Slides: http://slideshare.net/rlmpFeedback: http://joind.in/talk/view/2182


The Secret Recipe of a Juicy M

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