UPGRADE FROM 2.x to 3.0 ======================= ### ClassLoader * The `UniversalClassLoader` class has been removed in favor of `ClassLoader`. The only difference is that some method names are different: * `registerNamespaces()` -> `addPrefixes()` * `registerPrefixes()` -> `addPrefixes()` * `registerNamespaces()` -> `addPrefix()` * `registerPrefixes()` -> `addPrefix()` * `getNamespaces()` -> `getPrefixes()` * `getNamespaceFallbacks()` -> `getFallbackDirs()` * `getPrefixFallbacks()` -> `getFallbackDirs()` * The `DebugUniversalClassLoader` class has been removed in favor of `DebugClassLoader`. The difference is that the constructor now takes a loader to wrap. ### Form * Passing a `Symfony\Component\HttpFoundation\Request` instance to `FormInterface::bind()` was disabled. You should use `FormInterface::process()` instead. Before: ``` if ('POST' === $request->getMethod()) { $form->bind($request); if ($form->isValid()) { // ... } } ``` After: ``` if ($form->process($request)->isValid()) { // ... } ``` If you want to test whether the form was submitted separately, you can use the method `isBound()`: ``` if ($form->process($request)->isBound()) { // ... if ($form->isValid()) { // ... } } ``` ### FrameworkBundle * The `enctype` method of the `form` helper was removed. You should use the new method `start` instead. Before: ```
``` After: ``` start($form) ?> ... end($form) ?> ``` The method and action of the form default to "POST" and the current document. If you want to change these values, you can set them explicitly in the controller. Alternative 1: ``` $form = $this->createForm('my_form', $formData, array( 'method' => 'PUT', 'action' => $this->generateUrl('target_route'), )); ``` Alternative 2: ``` $form = $this->createFormBuilder($formData) // ... ->setMethod('PUT') ->setAction($this->generateUrl('target_route')) ->getForm(); ``` It is also possible to override the method and the action in the template: ``` start($form, array('method' => 'GET', 'action' => 'http://example.com')) ?> ... end($form) ?> ``` ### HttpKernel * The `Symfony\Component\HttpKernel\Log\LoggerInterface` has been removed in favor of `Psr\Log\LoggerInterface`. The only difference is that some method names are different: * `emerg()` -> `emergency()` * `crit()` -> `critical()` * `err()` -> `error()` * `warn()` -> `warning()` The previous method renames also happened to the following classes: * `Symfony\Bridge\Monolog\Logger` * `Symfony\Component\HttpKernel\Log\NullLogger` * The `Symfony\Component\HttpKernel\Kernel::init()` method has been removed. * The following classes have been renamed as they have been moved to the Debug component: * `Symfony\Component\HttpKernel\Debug\ErrorHandler` -> `Symfony\Component\Debug\ErrorHandler` * `Symfony\Component\HttpKernel\Debug\ExceptionHandler` -> `Symfony\Component\Debug\ExceptionHandler` * `Symfony\Component\HttpKernel\Exception\FatalErrorException` -> `Symfony\Component\Debug\Exception\FatalErrorException` * `Symfony\Component\HttpKernel\Exception\FlattenException` -> `Symfony\Component\Debug\Exception\FlattenException` ### Routing * Some route settings have been renamed: * The `pattern` setting for a route has been deprecated in favor of `path` * The `_scheme` and `_method` requirements have been moved to the `schemes` and `methods` settings Before: ``` article_edit: pattern: /article/{id} requirements: { '_method': 'POST|PUT', '_scheme': 'https', 'id': '\d+' }