November 4, 2016 Javier Eguiluz

Symfony 3.2 includes tens of minor tweaks and improvements to make your work easier and to improve your productivity. This article summarizes some of those DX improvements.

Added ability to regress the progress bar¶ Contributed by

James Halsall

in #19824. This is useful for example when the workload of some task cannot be determined beforehand In those cases, you can regress the progress bar by passing a negative step to the advance() method: 1 2 3 4 5 6 7 8 9 10 use Symfony\Component\Console\Helper\ProgressBar ; $progress = new ProgressBar ( $output , 100 ); $progress -> start (); // ... do some work $progress -> advance ( 30 ); // new tasks are created, regress the bar by 10 steps $progress -> advance ( - 10 );

Automatically detect the service definition class¶ Contributed by

Guilhem N

in #19191. In PHP 7.x, methods can define the types of their return values. For example: 1 2 3 4 public function myFactory () : MyServiceClass { // ... } In Symfony 3.2, we've added a new FactoryReturnTypePass compiler pass that automatically updates the service definitions of the factories that define their return types.

Added support for prioritizing form type extensions¶ Contributed by

David Maicher

in #19790. Form extensions are the best way to add custom features on top of existing Symfony Form types. These extensions are enabled as services with the special form.type_extension tag. In Symfony 3.2, this tag defines a new optional attribute called priority to better control the order in which the form type extensions are loaded: 1 2 3 4 5 6 services : app.form.image_type_extension : class : AppBundle\Form\Extension\ImageTypeExtension tags : - { name : form.type_extension , priority : -128 , extended_type : Symfony\Component\Form\Extension\Core\Type\FileType }

Added a named constructor to JsonResponse¶ Contributed by

Timothée Barray

in #19552. If you create a JsonResponse with a content that is already encoded as a JSON string, you must pass true as the fourth optional argument of JsonResponse : 1 2 // $contents = '{"foo":"bar"}'; return new JsonResponse ( $contents , Response :: HTTP_OK , [], true ); In Symfony 3.2, you can use the new fromJsonString() named constructor: 1 2 // $contents = '{"foo":"bar"}'; return JsonResponse :: fromJsonString ( $contents );

Added a short syntax for service configurators¶ Contributed by

Oleg Voronkovich in #19190. Service configurators allow you to use a callable to configure a service after its instantiation. In Symfony 3.2, you can use a short syntax to define them in YAML config files: 1 2 3 4 5 6 7 services : app.some_service : class : ... # Traditional syntax configurator : [ '@app.configurator' , 'configure' ] # New short syntax supported by Symfony 3.2 configurator : 'app.configurator:configure'

Allowed to specify a domain when updating translations¶ Contributed by

Anthony Grassiot in #19325. The translation:update command now supports a --domain option to only update the messages related to that domain. This is very useful for complex applications that define lots of different translation domains: 1 $ ./bin/console translation:update en --force --domain = admin