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DDD

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@malukenho

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DDD É PRA MIM?

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Quantos livros é preciso ler para entender um livro?

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FILOSOFIA

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Tackling Complexity

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Heart of Software

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Core Domain

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Auth Core Domain

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Domain

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Modelo

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Domain Model

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Você tem que estar mortalmente interessado, no problema que está envolvido.

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“Yo soy yo y mi circunstancia.” Ortega y Gasset

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Problemas de comunicação

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Ubiquitous Language

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Literate Programming

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When Given Then

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Scenario: Buying a single product under £10 Given there is a "Sith Lord Lightsaber", which costs £5 When I add the "Sith Lord Lightsaber" to the basket Then I should have 1 product in the basket And the overall basket price should be £9

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STATUS QUAESTIONIS

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Ninguém pode dar o que não tem.

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BBoM

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is_array($object); 22,748,480

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Event Storming

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VALUE OBJECT

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ATOMIC STEP

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SELF VALIDATED

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email = $email;
 }
 
 public static function fromString(string $email) : self
 {
 return new self($email);
 }
 }

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new User('malukenho', 5);

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NAMED CONSTRUCTOR

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User::fromNameAndFingersByHand( 'malukenho', 5 );

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username = $username;
 }
 
 public static function fromString(string $username) : self
 {
 return new self($username);
 } public static function fromUser(User $user) : self
 {
 return new self($user->getUsername());
 }
 }

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ANEMIC DOMAIN

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IMMUTABLE

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Potentially mutable operation

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Money Pattern

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amount = $amount; $this->currency = $currency; } }

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amount() + $amount, $this->currency() ); } }

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Entidades

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*Identidade

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UUID

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 Uuid::uuid4(); // 7b733ff1-42d2-4638-b7bd-411997c32b11 Value Object

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EVITAR INVALID STATE DA ENTIDADE

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INDEPENDE DE STORAGE

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#TIPS

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PERSISTÊNCIA ORM

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NÃO USE ANNOTATIONS

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Delivery Mechanism

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DDD É PRA MIM?

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Sylius

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PERGUNTAS?

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THANKS! @malukenho