A Year With Symfony

By Matthias Noback



I've written A yr With Symfony for you, a developer who will paintings with Symfony2 for greater than a month (and most likely greater than a year). you have began studying your approach throughout the reputable documentation ("The Book"), the cookbook, a few blogs, or a web instructional. you recognize now how you can create a Symfony2 software, with routing, controllers, entities or records, Twig templates and perhaps a few unit checks. yet after those uncomplicated steps, a few issues will elevate about...

- The reusability of your code - How if you constitution your code to make it reusable in a destiny venture? or maybe within the comparable venture, yet with a special view or in a console command?

- the standard of the inner API you've knowingly or unknowingly created - What are you able to do to make sure that your crew individuals will comprehend your code, and may use it within the method it was once intended for use? how are you going to make your code versatile adequate for use in occasions reminiscent of the single you wrote it for?

- the extent of safeguard of your software - Symfony2 and Doctrine appear to instantly make you invulnerable for famous assaults in your net program, like XSS, CSRF and SQL injection assaults. yet are you able to thoroughly depend upon the framework? And what steps when you take to mend a few of the last issues?

- the interior workings of Symfony2 - if you take one step farther from developing simply controllers and perspectives, you'll soon want to know extra concerning the HttpKernel that's the center of a Symfony2 program. How does it be aware of what controller might be used, and which template? and the way are you able to override any determination that's made whereas dealing with a request?

To get a greater notion in regards to the ebook, seriously look into the desk of contents below), or obtain a pattern of the booklet above.

A revealed version of this booklet is on the market through Lulu.com.


Matthias Noback @matthiasnoback

My identify is Matthias Noback. i'm a Hypertext Preprocessor, Symfony2, item orientated programming, test-driven improvement enthousiast, residing in Zeist with my female friend and son, who's jealous of me in view that i'll examine a monitor all day.

In prior years I've labored as software program developer with a different awareness to inner caliber insurance. Now I'm a contract developer, advisor and writer.

I usually submit approximately a few of the extra complicated Symfony2-related themes on my web publication php-and-symfony.matthiasnoback.nl.

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EventDispatcherInterface $eventDispatcher ) { ... $this->eventDispatcher = $eventDispatcher; } public functionality createAccount(Account $account) { ... $this->eventDispatcher->dispatch( AccountEvents::NEW_ACCOUNT_CREATED, new AccountEvent($account) ); } } Don’t fail to remember so as to add the event_dispatcher carrier as an issue to the carrier definition of the AccountManager: Organizing program layers the development listener for the matthias_account. new_account_created occasion will appear like this: namespace Matthias\AccountBundle\EventListener; use Symfony\Component\EventDispatcher\EventSubscriberInterface; use Matthias\AccountBundle\Event\AccountEvents; use Matthias\AccountBundle\Event\AccountEvent; classification SendConfirmationMailListener implements EventSubscriberInterface { inner most $mailer; public static functionality getSubscribedEvents() { go back array( AccountEvents::NEW_ACCOUNT_CREATED => 'onNewAccount' ); } public functionality __construct(\SwiftMailer $mailer) { $this->mailer = $mailer; } public functionality onNewAccount(AccountEvent $event) { $this->sendConfirmationMessage($event->getAccount()); } deepest functionality sendConfirmationMessage(Account $account) { $message = \Swift_Message::newInstance(); ... $this->mailer->send($message); eighty two Organizing software layers eighty three } } when you consider that this occasion listener wishes the mailer to do its paintings, we have to inject it through including a controversy to its carrier definition. actually, we even have so as to add a tag kernel. event_subscriber which registers the SendConfirmationMailListener as an occasion subscriber: occasion listener most sensible practices An occasion listener can be named after the object it does, no longer after the development it listens to. So rather than naming an occasion listener NewAccountEventListener, you need to identify it SendConfirmationMailListener. This additionally is helping different builders after they are looking for where the place a affirmation mail is being despatched. additionally, while anything else may still occur while an occasion happens, like sending a mail to the landlord of the location, you need to create one other listener provider for it, rather than including extra code to the prevailing listener. allowing or disabling particular listeners could be a lot more straightforward, and maintainability raises, since you won’t by chance swap current habit. endurance occasions you could bear in mind that the AccountManager (a area supervisor) generated a affirmation code for the account, correct earlier than persisting it: classification AccountManager { inner most $entityManager; deepest $secureRandom; public functionality __construct( EntityManger $entityManager, SecureRandomInterface $secureRandom ) { $this->entityManager = $entityManager; $this->secureRandom = $secureRandom; } Organizing software layers eighty four public functionality createAccount(Account $account) { $confirmationCode = $this ->secureRandom ->nextBytes(4); $account ->setConfirmationCode(md5($confirmationCode)); $this->entityManager->persist($account); $this->entityManager->flush(); } } this isn't any such sturdy suggestion.

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