Just one year after its 1.0 release, TYPO3 Flow (formerly known as FLOW3) raises the version number to introduce a couple of new major features. Flow, probably being the most advanced PHP application framework on the market, brings back the joy of development and is especially well suited for enterprise applications. In this session you’ll get a compact introduction into the feature set of Flow 2.0 and what's coming up in the next version.

1. TYPO3 Flow 2.0
Robert Lemke_

2. TEXT HERE
project founder of TYPO3 Flow and TYPO3 Neos
co-founder of the TYPO3 Association
coach, coder, consultant
36 years old
lives in Lübeck, Germany
1 wife, 2 daughters, 1 espresso machine
likes drumming

3. 72 new features
177 bug fixes
236 improvements

4. Composer

5. Installation via Composer
$ curl -s https://getcomposer.org/installer | php
$ sudo mv composer.phar /usr/local/bin/composer
$ composer create-project --stability="beta" --dev typo3/flow-base-
distribution MyProject

6. Composer is for
Development
not for
Deployment

7. http://bit.ly/flow-composer-video

8. Native
Sessions

9. written in pure PHP

10. for the cloud

11. /**
* @FlowInject
* @var TYPO3FlowSessionSessionManagerInterface
*/
protected $sessionManager;
…
$session = $this->sessionManager->getCurrentSession();
$session->isStarted();
$session->getId();

12. $session->putData('username', 'robert');
$session->hasKey('username');
$username = $session->getData('username');

13. $session = $this->sessionManager->getSession($sessionId);
$username = $session->getData('username');

14. $session->addTag('user12345');
…
$session = $this->sessionManager->getSessionByTag('user12345');

15. Caches.yaml:
Flow_Session_Storage:
backend: TYPO3FlowCacheBackendApcBackend

16. 404, 505

17. TYPO3:
Flow:
error:
exceptionHandler:
defaultRenderingOptions: []
renderingGroups:
notFoundExceptions:
matchingStatusCodes: [404]
options:
templatePathAndFilename: 'resource://TYPO3.Flow/Private/Templates/E
variables:
errorDescription: 'Sorry, the page you requested was not found.'
databaseConnectionExceptions:
matchingExceptionClassNames: ['TYPO3FlowPersistenceDoctrineDataba
options:
templatePathAndFilename: 'resource://TYPO3.Flow/Private/Templates/E
variables:
errorDescription: 'Sorry, the database connection couldn''t be es

18. Persisted
Roles

19. roles:
User: []
Manager: ['User']
Editor: ['User', 'TYPO3.Neos:Editor']

22. $role = $this->policyService->createRole('Vendor.Package:Role');
$this->policyService->hasRole('Vendor.Package:Role');
$role = $this->policyService->getRole('Vendor.Package:Role');

23. Safe
Request
Methods

24. Network Working Group R. Fielding
Request for Comments: 2616 UC Irvine
Obsoletes: 2068 J. Gettys
Category: Standards Track Compaq/W3C
J. Mogul
Compaq
H. Frystyk
W3C/MIT
L. Masinter
Xerox
P. Leach
Microsoft
T. Berners-Lee
W3C/MIT
June 1999
Hypertext Transfer Protocol -- HTTP/1.1
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet

25. 9.1 Safe and Idempotent Methods
9.1.1 Safe Methods
Implementors should be aware that the software represents the user in
their interactions over the Internet, and should be careful to allow the
user to be aware of any actions they might take which may have an
unexpected significance to themselves or others.
In particular, the convention has been established that the GET and HEAD
methods SHOULD NOT have the significance of taking an action other than
retrieval. These methods ought to be considered "safe". This allows user
agents to represent other methods, such as POST, PUT and DELETE, in a
special way, so that the user is made aware of the fact that a possibly
unsafe action is being requested.
Naturally, it is not possible to ensure that the server does not generate
side-effects as a result of performing a GET request; in fact, some
dynamic resources consider that a feature. The important distinction here
is that the user did not request the side-effects, so therefore cannot be
held accountable for them.
9.1.2 Idempotent Methods

26. no automatic persistence

27. speeds up link generation

28. Lazy
Dependency
Injection

29. class BookController extends ActionController {
/**
* @FlowInject
* @var BookRepository
*/
protected $bookRepository;
}

30. class BookController extends ActionController {
…
public function myAction() {
// $this->bookRepository is instance of Dependency Proxy
$this->bookRepository->findAll();
// $this->bookRepository is the real BookRepository
}
}

31. $greet = function($name) {
printf("Hello %s", $name);
};
$greet('World');

32. class BookController extends BookController_Original
implements ProxyInterface {
/**
* Autogenerated Proxy Method
*/
public function __construct() {
$this->Flow_Proxy_injectProperties();
}

33. $bookRepository_reference = &$this->bookRepository;
$this->bookRepository =
Bootstrap::$staticObjectManager->getLazyDependencyByHash(
'd0e87f8f658d7866eec63db44a6918b4', $bookRepository_reference
);
if ($this->bookRepository === NULL) {
$this->bookRepository = Bootstrap::$staticObjectManager->createLazyDependency(
'd0e87f8f658d7866eec63db44a6918b4', $bookRepository_reference,
'RobertLemkeExampleBookshopDomainRepositoryBookRepository',
function() {
return Bootstrap::$staticObjectManager->get(
'RobertLemkeExampleBookshopDomainRepositoryBookRepository'
);
});
}

34. class BookController extends ActionController {
…
public function myAction() {
$this->bookRepository->findAll();
}
}

35. class DependencyProxy {
…
/**
* Proxy magic call method which triggers the injection of the real dependency
* and returns the result of a call to the original method in the dependency
*
* @param string $methodName Name of the method to be called
* @param array $arguments An array of arguments to be passed to the method
* @return mixed
*/
public function __call($methodName, array $arguments) {
return call_user_func_array(array($this->_activateDependency(), $methodName),
$arguments);
}
/**
* Activate the dependency and set it in the object.
*
* @return object The real dependency object
* @api
*/
public function _activateDependency() {
$realDependency = $this->builder->__invoke();
foreach($this->propertyVariables as &$propertyVariable) {
$propertyVariable = $realDependency;
}
return $realDependency;
}

36. Static
Method
Compilation

37. /**
* Returns a map of action method names and their parameters.
*
* @return array Array of method parameters by action name
*/
public function getActionMethodParameters() {
$methodParameters = $this->reflectionService->getMethodParameters(
get_class($this), $this->actionMethodName);
foreach ($methodParameters as $parameterName => $parameterInfo) {
...
}
return $methodParameters;
}
}

38. /**
* Returns a map of action method names and their parameters.
*
* @param TYPO3FlowObjectObjectManagerInterface $objectManager
* @return array Array of method parameters by action name
* @FlowCompileStatic
*/
static public function getActionMethodParameters($objectManager) {
$reflectionService = $objectManager->get('TYPO3FlowReflectionReflectionService');
$className = get_called_class();
$methodParameters = $reflectionService->getMethodParameters(
$className, get_class_methods($className)
);
foreach ($methodParameters as $parameterName => $parameterInfo) {
...
}
return $methodParameters;
}

39. Speed

40. Uncached Welcome Screen

41. 2.1

42. Cloud Resources

43. resource:
# Definition of resource storages provided by the Flow core.
# Storages are used for storing and retrieving resources.
storages:
#
defaultPersistentResourcesStorage:
storage: 'TYPO3FlowResourceStorageFileSystemStorage'
storageOptions:
path: %FLOW_PATH_DATA%Persistent/Resources/
# Definition of the default resource collections.
# Collections are used to bundle / group static or persistent resources
# for common processing and publication.
collections:
# Collection which contains all persistent resources
persistentResources:
sources:
-
storage: 'defaultPersistentResourcesStorage'
target: 'localWebDirectoryPersistentResourcesTarget'
# Definition of the basic resource publication targets.
targets:
# Target for publishing persistent resources to the local web directory
localWebDirectoryPersistentResourcesTarget:
target: 'TYPO3FlowResourceTargetFileSystemTarget'
targetOptions:
path: '%FLOW_PATH_WEB%_Resources/Persistent/'
baseUri: '_Resources/Persistent/'
mirrorMode: 'link'

44. Minifying & Filters

45. Routing: Request Methods

46. 2.2

47. Page Cache & Reverse Proxy

48. Multi Persistence

50. Ask me anything

51. https://github.com/robertlemke

52. TYPO3 Flow Trainings and
Inhouse Workshops

53. Robert Lemke_
robertlemke.com
@robertlemke