Drupal users group_symfony2

Symfony2 Components in Drupal8

● PHP Programmer
● LAMP
● Symfony2 (is my favorite)
● Javascript
● PHP Meetup Organizer
Twitter:
@bzitzow
Email:
bzitzow@gmail.com

How & Why?!

Drupal & W.S.C.C.I.
Web Services and Context Core Initiative

Drupal & W.S.C.C.I.
The Web Services and Context Core Initiative (WSCCI)
aims to transform Drupal from a first-class CMS to a first-class
REST server with a first-class CMS on top of it.

Drupal & W.S.C.C.I.
The Web Services and Context Core Initiative (WSCCI)
aims to transform Drupal from a first-class CMS to a
first-class REST server with a first-class CMS on top of it.

First Class
The term generally implies a high level
of service, importance or quality.
Source: Wikipedia

Drupal
A First Class REST Server?

Drupal W.S.C.C.I.
The Web Services and Context Core Initiative (WSCCI) aims
to transform Drupal from a first-class CMS to a first-class

Drupal W.S.C.C.I.
The Web Services and Context Core Initiative (WSCCI) aims
to transform Drupal from a first-class CMS to a first-class
To do that, we must give Drupal a unified, powerful context
system that will support smarter, context- sensitive, easily
cacheable block-centric layouts and non-page responses
using a robust unified plugin mechanism.
Source: http://groups.drupal.org/wscci

Symfony2
A reusable set of standalone, decoupled, and
cohesive PHP components that solve common
web development problems.

Symfony2
A reusable set of standalone, decoupled, and
cohesive PHP components that solve common
web development problems.
“An HTTP framework; it is a Request /
Response framework. That's the big deal. The
fundamental principles of Symfony2 are
centered around the HTTP specification.”
~ Fabien Potencier

Symfony2 Components
● Http Kernel
● Http Foundation
● Event Dispatcher
● Routing
● Dependency Injection
● Class Loader

Symfony2 Components
● Http Kernel
● Http Foundation
● Event Dispatcher

HTTP Kernel Component
The HttpKernel Component provides a
structured process for converting a Request
into a Response by making use of the event
dispatcher.

The HttpKernel Component provides a
structured process for converting a Request
into a Response by making use of the event
dispatcher.
Flexible enough to create:
● a full-stack framework (Symfony)
● a micro-framework (Silex)
● an advanced CMS system (Drupal)

HTTP Foundation Component
The HttpFoundation Component defines an
object-oriented layer for the HTTP
specification.

It is an Object-Oriented abstraction of some
native PHP functions and variables:

The Request class abstracts the main PHP
global variables like:
● $_GET
● $_POST
● $_COOKIE
● $_FILES
● $_SERVER

The Response class abstracts some PHP
functions like
● Header()
● Setcookie()
● echo

The Session class and SessionStorageInterface
interface abstract session management
session_*() functions.

Event Dispatcher Component
● A listener (PHP object) tells a central dispatcher
object that it wants to listen to an event;

● At some point, the dispatcher object is told to
dispatch the event, passing with it an Event
object;

● At some point, the dispatcher object is told to
dispatch the event, passing with it an Event
object;
● The dispatcher notifies (i.e. calls a method on) all
listeners of the dispatched event, allowing each of
them to make modifications to the Event object.

● Enable a system-wide plugin system
● Drupal 8 will run hook system and Event
Dispatcher in parallel and power a lot of the
core-level Drupal components.
● Drupal 9 – its up for discussion! “The D8 cycle
will allow us to gain some experience with event
subscribers, and compare them with hooks.”
● EventDispatcher more flexible (inheritance) &
dependencies can be injected via the DIC.
http://drupal.org/node/1509164

Routing Component
The Routing Component maps an HTTP request
to a set of configuration variables.

Routing Component
● Define routes

Routing Component
● Define routes
● Gather information about the incoming request

Routing Component
● Define routes
● Gather information about the incoming request
● Match the incoming request route to the route definitions

Routing Component
● Define routes
– YAML
– XML
– PHP

kernel.request event
● Add more information to the Request,
● Initialize parts of the system
● Router listener
● Return a Response (denied!!!)

Resolve the controller based on routing info.
● ControllerResolver
● getController()
● getArguments()

kernel.controller event
● Initialize things for your app
● Change the controller

HttpKernel::handle()
● Executes the controller
● Passes it arguments
● Controller builds response (resource)

kernel.view event
Transform a non-Response return value from a
controller into a Response.
● Array to JSON
● Array to HTML
● Whatever you want to Whatever you want

kernel.response event
● Modify Response before it's sent
● HTTP Headers
● Add cookies
● Change the response itself

Symfony2 Components
TWIG Template Engine

Symfony2 Components
Doctrine Annotations

Drupal users group_symfony2

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