Download A Year With Symfony Writing healthy, reusable Symfony2 by Matthias Noback PDF

By Matthias Noback

You recognize now tips on how to create a Symfony2 software, with routing, controllers, entities or files, Twig templates and perhaps a few unit checks. yet after those simple steps, a few issues will increase about...
The reusability of your code - How for those who constitution your code to make it reusable in a destiny undertaking? or maybe within the related venture, yet with a distinct view or in a console command?
The quality of the interior API you may have 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 manner it was once intended for use? how will you make your code versatile sufficient for use in events reminiscent of the only you wrote it for?
The point of security of your program - Symfony2 and Doctrine appear to immediately make you invulnerable for famous assaults in your internet software, like XSS, CSRF and SQL injection assaults. yet are you able to thoroughly depend on the framework? And what steps when you take to mend a number of the last matters?

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Otherwise the status code defaults to 500 - Internal server error. This is much better than the standard PHP behavior, which will return a response with status 200 - OK, when an error has occurred. When an event listener has set a Response object, this response is not handled any differently than a normal response, so the last step in handling an exception is to filter the response. When another exception gets thrown while filtering the response, this exception will simply be ignored, and the unfiltered response will be sent to the client.

This is because each service definition can have multiple tags with the same name (but maybe with different attributes). Then, the service definition for the ObjectRenderer class is retrieved and while iterating over the tags, a Reference is created which refers to each renderer service that is tagged as “specific_renderer” and together with the provided value for alias, these are used as arguments to a call to the method addRenderer(). All of this means that when the object_renderer service is requested, first of all an instance of ObjectRenderer gets created.

User' => ... ) Multiple method calls When you read the code of the ObjectRenderer class again in “strict” mode, it appears you cannot trust the $renderers array to contain only valid renderers (which, let’s say, implement RendererInterface). Therefore, you may decide to dedicate a special method for adding a renderer: class ObjectRenderer { private $renderers; public function __construct() { $this->renderers = array(); } public function addRenderer($name, RendererInterface $renderer) { $this->renderers[$name] = $renderer; } } Of course, when the name is irrelevant, leave out the $name parameter.

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