Archived

This repository has been archived on 2023-08-20. You can view files and clone it, but cannot push or open issues or pull requests.

Fabien Potencier 0038d1bac4 [HttpFoundation] added support for streamed responses

To stream a Response, use the StreamedResponse class instead of the
standard Response class:

    $response = new StreamedResponse(function () {
        echo 'FOO';
    });

    $response = new StreamedResponse(function () {
        echo 'FOO';
    }, 200, array('Content-Type' => 'text/plain'));

As you can see, a StreamedResponse instance takes a PHP callback instead of
a string for the Response content. It's up to the developer to stream the
response content from the callback with standard PHP functions like echo.
You can also use flush() if needed.

From a controller, do something like this:

    $twig = $this->get('templating');

    return new StreamedResponse(function () use ($templating) {
        $templating->stream('BlogBundle:Annot:streamed.html.twig');
    }, 200, array('Content-Type' => 'text/html'));

If you are using the base controller, you can use the stream() method instead:

    return $this->stream('BlogBundle:Annot:streamed.html.twig');

You can stream an existing file by using the PHP built-in readfile() function:

    new StreamedResponse(function () use ($file) {
        readfile($file);
    }, 200, array('Content-Type' => 'image/png');

Read http://php.net/flush for more information about output buffering in PHP.

Note that you should do your best to move all expensive operations to
be "activated/evaluated/called" during template evaluation.

Templates
---------

If you are using Twig as a template engine, everything should work as
usual, even if are using template inheritance!

However, note that streaming is not supported for PHP templates. Support
is impossible by design (as the layout is rendered after the main content).

Exceptions
----------

Exceptions thrown during rendering will be rendered as usual except that
some content might have been rendered already.

Limitations
-----------

As the getContent() method always returns false for streamed Responses, some
event listeners won't work at all:

* Web debug toolbar is not available for such Responses (but the profiler works fine);
* ESI is not supported.

Also note that streamed responses cannot benefit from HTTP caching for obvious
reasons.

2011-12-21 14:34:26 +01:00

7.8 KiB

Raw Blame History

CHANGELOG for 2.1.x

This changelog references the relevant changes (bug and security fixes) done in 2.1 minor versions.

To get the diff for a specific change, go to https://github.com/symfony/symfony/commit/XXX where XXX is the change hash To get the diff between two versions, go to https://github.com/symfony/symfony/compare/v2.1.0...v2.1.1

2.1.0

DoctrineBrige

added a default implementation of the ManagerRegistry
added a session storage for Doctrine DBAL

AbstractDoctrineBundle

This bundle has been removed and the relevant code has been moved to the Doctrine bridge

DoctrineBundle

added optional group_by property to EntityType that supports either a PropertyPath or a \Closure that is evaluated on the entity choices
The em option for the UniqueEntity constraint is now optional (and should probably not be used anymore).

FrameworkBundle

added a router:match command
added kernel.event_subscriber tag
added a way to create relative symlinks when running assets:install command (--relative option)
added Controller::getUser()
[BC BREAK] assets_base_urls and base_urls merging strategy has changed
changed the default profiler storage to use the filesystem instead of SQLite
added support for placeholders in route defaults and requirements (replaced by the value set in the service container)

SecurityBundle

[BC BREAK] The custom factories for the firewall configuration are now registered during the build method of bundles instead of being registered by the end-user (you need to remove the 'factories' keys in your security configuration).
[BC BREAK] The Firewall listener is now registered after the Router one. It means that specific Firewall URLs (like /login_check and /logout must now have proper route defined in your routing configuration)

[BC BREAK] refactored the user provider configuration. The configuration changed for the chain provider and the memory provider:

Before:

 security:
     providers:
         my_chain_provider:
             providers: [my_memory_provider, my_doctrine_provider]
         my_memory_provider:
             users:
                 toto: { password: foobar, roles: [ROLE_USER] }
                 foo: { password: bar, roles: [ROLE_USER, ROLE_ADMIN] }

After:

 security:
     providers:
         my_chain_provider:
             chain:
                 providers: [my_memory_provider, my_doctrine_provider]
         my_memory_provider:
             memory:
                 users:
                     toto: { password: foobar, roles: [ROLE_USER] }
                     foo: { password: bar, roles: [ROLE_USER, ROLE_ADMIN] }

added a validator for the user password
added 'erase_credentials' as a configuration key (true by default)
added new events: security.authentication.success and security.authentication.failure fired on authentication success/failure, regardless of authentication method, events are defined in new event class: Symfony\Component\Security\Core\AuthenticationEvents.

SwiftmailerBundle

moved the data collector to the bridge
replaced MessageLogger class with the one from Swiftmailer 4.1.3

TwigBundle

added the real template name when an error occurs in a Twig template

WebProfilerBundle

[BC BREAK] You must clear old profiles after upgrading to 2.1 (don't forget to remove the table if you are using a DB)

added support for the request method
added a routing panel
added a timeline panel
The toolbar position can now be configured via the position option (can be top or bottom)

Config

added a way to add documentation on configuration
implemented Serializable on resources
LoaderResolverInterface is now used instead of LoaderResolver for type hinting

Console

added a --raw option to the list command
added support for STDERR in the console output class (errors are now sent to STDERR)
made the defaults (helper set, commands, input definition) in Application more easily customizable
added support for the shell even if readline is not available

ClassLoader

added support for loading globally-installed PEAR packages

DependencyInjection

component exceptions that inherit base SPL classes are now used exclusively (this includes dumped containers)

DomCrawler

added a way to get parsing errors for Crawler::addHtmlContent() and Crawler::addXmlContent() via libxml functions
added support for submitting a form without a submit button

EventDispatcher

added a reference to the EventDispatcher on the Event
added a reference to the Event name on the event

Finder

Finder::exclude() now supports an array of directories as an argument

Form

added support for validation groups as callbacks
made the translation catalogue configurable via the "translation_domain" option
added Form::getErrorsAsString() to help debugging forms
allowed setting different options for RepeatedType fields (like the label)

HttpFoundation

added support for streamed responses
made Response::prepare() method the place to enforce HTTP specification
[BC BREAK] moved management of the locale from the Session class to the Request class
added a generic access to the PHP built-in filter mechanism: ParameterBag::filter()
made FileBinaryMimeTypeGuesser command configurable
added Request::getUser() and Request::getPassword()
added support for the PATCH method in Request
removed the ContentTypeMimeTypeGuesser class as it is deprecated and never used on PHP 5.3
added ResponseHeaderBag::makeDisposition() (implements RFC 6266)
made mimetype to extension conversion configurable

HttpKernel

added CacheClearerInterface
added a kernel.terminate event
added a Stopwatch class
added WarmableInterface
improved extensibility between bundles
added a File-based profiler storage
added a MongoDB-based profiler storage

Locale

added Locale::getIcuVersion() and Locale::getIcuDataVersion()

Process

added ProcessBuilder

Routing

added a TraceableUrlMatcher
added the possibility to define default values and requirements for placeholders in prefix
added RouterInterface::getRouteCollection

Security

after login, the user is now redirected to default_target_path if use_referer is true and the referrer is the login_path.
added a way to remove a token from a session

Serializer

[BC BREAK] convert the item XML tag to an array

<?xml version="1.0"?>
<response>
    <item><title><![CDATA[title1]]></title></item><item><title><![CDATA[title2]]></title></item>
</response>