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UPGRADE-4.0.md

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UPGRADE FROM 3.x to 4.0

Console

  • Setting unknown style options is not supported anymore and throws an exception.

Debug

  • FlattenException::getTrace() now returns additional type descriptions integer and float.

DependencyInjection

  • Calling get() on a ContainerBuilder instance before compiling the container is not supported anymore and will throw an exception.

  • Using unsupported configuration keys in YAML configuration files raises an exception.

  • Using unsupported options to configure service aliases raises an exception.

  • Setting or unsetting a private service with the Container::set() method is no longer supported. Only public services can be set or unset.

  • Checking the existence of a private service with the Container::has() method is no longer supported and will return false.

  • Requesting a private service with the Container::get() method is no longer supported.

ExpressionLanguage

  • The ability to pass a ParserCacheInterface instance to the ExpressionLanguage class has been removed. You should use the CacheItemPoolInterface interface instead.

Form

  • The choices_as_values option of the ChoiceType has been removed.

  • Support for data objects that implements both Traversable and ArrayAccess in ResizeFormListener::preSubmit method has been removed.

  • Using callable strings as choice options in ChoiceType is not supported anymore in favor of passing PropertyPath instances.

    Before:

    'choice_value' => new PropertyPath('range'),
    'choice_label' => 'strtoupper',

    After:

    'choice_value' => 'range',
    'choice_label' => function ($choice) {
        return strtoupper($choice);
    },
  • Caching of the loaded ChoiceListInterface in the LazyChoiceList has been removed, it must be cached in the ChoiceLoaderInterface implementation instead.

  • Calling isValid() on a Form instance before submitting it is not supported anymore and raises an exception.

    Before:

    if ($form->isValid()) {
        // ...
    }

    After:

    if ($form->isSubmitted() && $form->isValid()) {
        // ...
    }

FrameworkBundle

  • Support for absolute template paths has been removed.

  • The following form types registered as services have been removed; use their fully-qualified class name instead:

    • "form.type.birthday"
    • "form.type.checkbox"
    • "form.type.collection"
    • "form.type.country"
    • "form.type.currency"
    • "form.type.date"
    • "form.type.datetime"
    • "form.type.email"
    • "form.type.file"
    • "form.type.hidden"
    • "form.type.integer"
    • "form.type.language"
    • "form.type.locale"
    • "form.type.money"
    • "form.type.number"
    • "form.type.password"
    • "form.type.percent"
    • "form.type.radio"
    • "form.type.range"
    • "form.type.repeated"
    • "form.type.search"
    • "form.type.textarea"
    • "form.type.text"
    • "form.type.time"
    • "form.type.timezone"
    • "form.type.url"
    • "form.type.button"
    • "form.type.submit"
    • "form.type.reset"
  • The framework.serializer.cache option and the services serializer.mapping.cache.apc and serializer.mapping.cache.doctrine.apc have been removed. APCu should now be automatically used when available.

HttpFoundation

  • Extending the following methods of Response is no longer possible (these methods are now final):

    • setDate/getDate
    • setExpires/getExpires
    • setLastModified/getLastModified
    • setProtocolVersion/getProtocolVersion
    • setStatusCode/getStatusCode
    • setCharset/getCharset
    • setPrivate/setPublic
    • getAge
    • getMaxAge/setMaxAge
    • setSharedMaxAge
    • getTtl/setTtl
    • setClientTtl
    • getEtag/setEtag
    • hasVary/getVary/setVary
    • isInvalid/isSuccessful/isRedirection/isClientError/isServerError
    • isOk/isForbidden/isNotFound/isRedirect/isEmpty

HttpKernel

  • Possibility to pass non-scalar values as URI attributes to the ESI and SSI renderers has been removed. The inline fragment renderer should be used with non-scalar attributes.

  • The ControllerResolver::getArguments() method has been removed. If you have your own ControllerResolverInterface implementation, you should inject an ArgumentResolverInterface instance.

  • The DataCollector::varToString() method has been removed in favor of cloneVar().

Serializer

  • The ability to pass a Doctrine Cache instance to the ClassMetadataFactory class has been removed. You should use the CacheClassMetadataFactory class instead.

Translation

  • Removed the backup feature from the file dumper classes.

TwigBridge

  • The possibility to inject the Form Twig Renderer into the form extension has been removed. Inject it into the TwigRendererEngine instead.

Yaml

  • Mappings with a colon (:) that is not followed by a whitespace are not supported anymore and lead to a ParseException(e.g. foo:bar must be foo: bar).

  • Starting an unquoted string with % leads to a ParseException.

  • The Dumper::setIndentation() method was removed. Pass the indentation level to the constructor instead.

  • Removed support for passing true/false as the second argument to the parse() method to trigger exceptions when an invalid type was passed.

    Before:

    Yaml::parse('{ "foo": "bar", "fiz": "cat" }', true);

    After:

    Yaml::parse('{ "foo": "bar", "fiz": "cat" }', Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE);
  • Removed support for passing true/false as the third argument to the parse() method to toggle object support.

    Before:

    Yaml::parse('{ "foo": "bar", "fiz": "cat" }', false, true);

    After:

    Yaml::parse('{ "foo": "bar", "fiz": "cat" }', Yaml::PARSE_OBJECT);
  • Removed support for passing true/false as the fourth argument to the parse() method to parse objects as maps.

    Before:

    Yaml::parse('{ "foo": "bar", "fiz": "cat" }', false, false, true);

    After:

    Yaml::parse('{ "foo": "bar", "fiz": "cat" }', Yaml::PARSE_OBJECT_FOR_MAP);
  • Removed support for passing true/false as the fourth argument to the dump() method to trigger exceptions when an invalid type was passed.

    Before:

    Yaml::dump(array('foo' => new A(), 'bar' => 1), 0, 0, true);

    After:

    Yaml::dump(array('foo' => new A(), 'bar' => 1), 0, 0, Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE);
  • Removed support for passing true/false as the fifth argument to the dump() method to toggle object support.

    Before:

    Yaml::dump(array('foo' => new A(), 'bar' => 1), 0, 0, false, true);

    After:

    Yaml::dump(array('foo' => new A(), 'bar' => 1), 0, 0, false, Yaml::DUMP_OBJECT);
  • The !!php/object tag to indicate dumped PHP objects was removed in favor of the !php/object tag.

  • Duplicate mapping keys lead to a ParseException.

Validator

  • The DateTimeValidator::PATTERN constant was removed.

  • Tests\Constraints\AbstractConstraintValidatorTest has been removed in favor of Test\ConstraintValidatorTestCase.

    Before:

    // ...
    use Symfony\Component\Validator\Tests\Constraints\AbstractConstraintValidatorTest;
    
    class MyCustomValidatorTest extends AbstractConstraintValidatorTest
    {
        // ...
    }

    After:

    // ...
    use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
    
    class MyCustomValidatorTest extends ConstraintValidatorTestCase
    {
        // ...
    }
  • The default value of the strict option of the Choice Constraint has been changed to true as of 4.0. If you need the the previous behaviour ensure to set the option to false.