Doctrine Project

PHPMGTalks #3 – 13 de Abril de 2013

Eu!
● Daniel Lima
– @yourwebmaker
– fb.com/dlpinheiro
– Arquiteto de aplicações na
– Produtor musical & DJ
– Biker
– Skater
– Drunk
– ...

Agenda
● O que é o Doctrine na verdade?
– O projeto
– Libs:
● ORM
● ODM: MongoDB, CouchDB
● DBAL: Migrations
● Common: Annotations, Cache, Data Fixtures, Inflector
● Doctrine e outros projetos

O Projeto
● O que é o Doctrine na verdade?
– “The Doctrine Project is the home of a selected set
of PHP libraries primarily focused on providing
persistence services and related functionality. Its
prize projects are a Object Relational Mapper and
the Database Abstraction Layer it is built on top
of.” - http://www.doctrine-project.org/

Colaboradores
● Guilherme Blanco …. Éééééé do Brasilll!!!!
● Jonathan H. Wage
● Benjamin Eberlei
● Bulat Shakirzyanov
● Fabien Potencier
● Roman S. Borschel
● ….... Você!

Agora, vamos conhecer
algumas libraries do
Doctrine!

ORM: Mapeador de Objeto Relacional
● É a lib mais conhecida pela comunidade
● Facilita o desenvolvimento voltado ao Domínio
(problema) da aplicação
● Aproxima o modelo entidade-relacionamento
ao modelo Orientado a Objetos
● Não é necessário escrever SQL
● Não é esse MONSTRO todo que pensam...
● RTFM!!!

ORM: Mapeador de Objeto Relacional
Passo a passo comum:
– Crie suas tabelas
– Crie suas classes
– Mapeie suas classes
– Instancie suas classes
– Salve seus objetos
– Traga seus objetos salvos

Crie suas tabelas no banco de dados

Mapeie suas classes
● Classe “Usuario” mapeada
– https://gist.github.com/yourwebmaker/5369280#fil
e-usuario-php
● Classe “Grupo” mapeada
– https://gist.github.com/yourwebmaker/5369280#fil
e-grupo-php

Instancie suas classes
Salve seus objetos

ODM: Mapeador para No-SQL
● Mesmo “Conceito” do ORM, mas trabalha
somente com bancos No-Sql
● Oferece funcionalidades extras que os Clients
No-Sql não oferecem:
– Event Manager
– EntityRepositories
– Herança
● MongoDB, CouchDB, OrientDB...
● O projeto DoctrineKeyValueStore pretende
padronizar o uso de bancos No-Sql.

DBAL: Data Base Abstraction & Access
Layer
● Camada de abstração de banco de dados
sobre a PDO
● Oferece funcionalidades extras à PDO
● ORM faz uso da DBAL

DBAL: Alguns Recursos extras à PDO
● Cache

● Eventos

● Tipos
– CREATE DOMAIN MyMoney AS DECIMAL(18,3);
– Definindo um tipo:
https://gist.github.com/yourwebmaker/7a61f175c7
59cf00096d#file-moneytype-php
– Adicionando um tipo:

● Schema-Manager

● Schema-Representation

● Query Builder

CommonAnnotations
● /**
* @var
* @todo
* @Entity(repositoryClass=”XRepository”)
* @ORMEntity
* @AssertNotBlank()
*/
● "Annotations provide data about a program that is
not part of the program itself. They have no direct
effect on the operation of the code they
annotate." Oracle
● São como arquivos de configuração

CommonCache
● ApcCache (requires ext/apc)
● ArrayCache (in memory, lifetime of the request)
● FilesystemCache (not optimal for high concurrency)
● MemcacheCache (requires ext/memcache)
● MemcachedCache (requires ext/memcached)
● PhpFileCache (not optimal for high concurrency)
● RedisCache.php (requires ext/phpredis)
● WinCacheCache.php (requires ext/wincache)
● XcacheCache.php (requires ext/xcache)
● ZendDataCache.php (requires Zend Server Platform)

DBALMigrations
● “The Doctrine Migrations offer additional
functionality on top of the database abstraction
layer (DBAL) for versioning your database
schema and easily deploying changes to it. It
is a very easy to use and powerful tool.”
● Instale na munheca... ou... use o PHAR!
● 1000000x.... USE O PHAR!

DBALMigrations
● Configuração
– table_name: doctrine_migration_versions
migrations_directory:
/path/to/migrations/classes/DoctrineMigrations
migrations:
migration1:
version: 20100704000000
class: DoctrineMigrationsNewMigration

DBALMigrations
● $ doctrine-migrations:generate
Generated new migration class to
"/path/to/migrations/classes/DoctrineMigrations/Ve
rsion20100416130422.php"

DBALMigrations
$ ./doctrine migrations:status
== Configuration
>> Name: Doctrine Sandbox Migrations
>> Database Driver: pdo_mysql
>> Database Name: testdb
>> Configuration Source:
/Users/jwage/Sites/doctrine2git/tools/sandbox/migrations.xml
>> Version Table Name: doctrine_migration_versions
>> Migrations Namespace: DoctrineMigrations
>> Migrations Directory:
/Users/jwage/Sites/doctrine2git/tools/sandbox/DoctrineMigrations
>> Current Version: 2010-04-16 13:04:22
(20100416130422)
>> Latest Version: 2010-04-16 13:04:22
(20100416130422)
>> Executed Migrations: 0
>> Available Migrations: 1
>> New Migrations: 1
== Migration Versions
>> 2010-04-16 13:04:01 (20100416130401) not migrated

DBALMigrations
$ ./doctrine migrations:migrate --dry-run
Are you sure you wish to continue?
y
Executing dry run of migration up to 20100416130452
from 0
>> migrating 20100416130452
-> CREATE TABLE users (username VARCHAR(255) NOT
NULL, password VARCHAR(255) NOT NULL) ENGINE = InnoDB

DBALMigrations
$ ./doctrine migrations:migrate 0
Are you sure you wish to continue?
y
Migrating down to 0 from 20100416130422
-- reverting 20100416130422
-> DROP TABLE addresses
-- reverted
-- reverting 20100416130401
-> DROP TABLE users
-- reverted

Doctrine e outros projetos
● Symfony
– Validators
– Router
● Zend Framework 2
● Zend Framework 1
● JSMSerializer
● DMSFilter
● SuaSempresaSuaLib

Como obter ajuda?
● Google Groups:
– Doctrine-user
– Doctrine-dev
– Doctrine-BR
● IRC
– irc.freenode.net/doctrine
– irc.freenode.net/doctrine-dev
– irc.freenode.net/doctrine-mongodb-odm
● LEIA O MANUAL DE CABO A RABO!

Contribuindo com o Doctrine
● http://www.doctrine-project.org/contribute.html
● https://github.com/doctrine
– Há sempre projetos interessantes lá =)

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