Lets play with Symfony2

Let’s play with Symfony2 Noël GUILBERT

Symfony2 introduced a lot a new features, let’s discover some of them: • Dependency Injection Container • The form framework • Doctrine2 integration

Dependency Injection Container • Dependency Injection Container –a way to organize dependencies –Define services services: zend.translator: class: User arguments: [@user.storage] user.storage: class: SessionStorage

• How to use it in a Symfony2 project ?

• Create your own service –Symfony2 offer a simple and effective way to create services –It’s called an extension –An extension can receive some configuration parameter from the application config.yml file (i.e. databases connections, passwords, etc.)

• Create your own service –Define your services: # src/Bundle/TwitterBundle/Resources/config/user.yml parameters: twitter.username: ~ twitter.password: ~ services: twitter: class: Twitter arguments: [%twitter.username%, %twitter.password%]

• Create the extension class # src/Bundle/TwitterBundle/DependencyInjectionContainer/TwitterExtension.php

• Load your service # src/Bundle/TwitterBundle/DependencyInjectionContainer/TwitterExtension.php

• Enable the extension –Add these lines in the application config.yml file: # hello/config/config.yml twitter.twitter: username: noelguilbert password: mysecretpassword

• That’s all, the service is now available:

The Form Framework • A brand new piece of code • A layer on top of the domain models • Allows you to easily create HTML forms

Your first form

Write a simple Request class

Let’s add some validators

And you are ready to use it!

Doctrine 2 integration • Fully integrated: – DBAL – ORM – MongoDb mapper – Migrations

DBAL: configure your database connection

DBAL command lines • Create configured database $ php console doctrine:database:create • Drop configured database $ php console doctrine:database:drop • Query the database $ php console doctrine:sql:query ‘SELECT * FROM User’

ORM: persisting and retrieving entities • An Entity is a regular PHP class that has been mapped to Doctrine 2

ORM: Defining entities • Entities can be mapped with: • Regular PHP class • XML Definition schemas • YML Definition schemas

ORM: command lines • Convert Doctrine1 schemas to Doctrine 2: $ php console doctrine:mapping:convert-d1-schema • Generate entities: $ php console doctrine:generate:entities • Create or update the database schema $ php console doctrine:schema:create $ php console doctrine:schema:update • Load fixtures $ php console doctrine:schema:update

What’s next ?

Questions? Noël GUILBERT noel.guilbert@sensio.com Sensio S.A. 92-98, boulevard Victor Hugo 92 115 Clichy Cedex FRANCE Tél. : +33 1 40 99 80 80 www.sensiolabs.com - www.symfony-project.org - www.noelguilbert.com

Lets play with Symfony2

by Noel GUILBERT on Jul 09, 2010

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