-
The merging strategy for
assets_base_urlsandbase_urlshas changed.Unlike most configuration blocks, successive values for
assets_base_urlswill overwrite each other instead of being merged. This behavior was chosen because developers will typically define base URL's for each environment. Given that most projects tend to inherit configurations (e.g.config_test.ymlimportsconfig_dev.yml) and/or share a common base configuration (i.e.config.yml), merging could yield a set of base URL's for multiple environments.
-
Locale management was moved from the Session class to the Request class.
Before:
framework: session: default_locale: frAfter:
framework: default_locale: frBefore:
{{ app.request.session.locale }}or{{ app.session.locale }}After:
{{ app.request.locale }}Before:
$view['session']->getLocale()After:
$view['request']->getLocale()Before:
$session->getLocale()After:
$request->getLocale()
-
Symfony\Component\Security\Core\User\UserInterface::equals()has moved toSymfony\Component\Security\Core\User\EquatableInterface::isEqualTo().You must rename the
equals()method in your implementation of theUserclass toisEqualTo()and implementEquatableInterface. Apart from that, no other changes are required.Alternatively, you may use the default implementation provided by
AbstractToken::hasUserChanged()if you have no need of custom comparison logic. In this case, do not implementEquatableInterfaceand remove your comparison method.Before:
class User implements UserInterface { // ... public function equals(UserInterface $user) { /* ... */ } // ... }
After:
```
class User implements UserInterface, EquatableInterface
{
// ...
public function isEqualTo(UserInterface $user) { /* ... */ }
// ...
}
```
### Form and Validator
* Child forms are no longer automatically validated. That means that you must
explicitly set the `Valid` constraint in your model if you want to validate
associated objects.
If you don't want to set the `Valid` constraint, or if there is no reference
from the data of the parent form to the data of the child form, you can
enable BC behavior by setting the `cascade_validation` form option to `true`
on the parent form.
* Changed implementation of choice lists
ArrayChoiceList was replaced. If you have custom classes that extend this
class, you must now extend SimpleChoiceList.
Before:
```
class MyChoiceList extends ArrayChoiceList
{
protected function load()
{
parent::load();
// load choices
$this->choices = $choices;
}
}
```
After:
```
class MyChoiceList extends SimpleChoiceList
{
public function __construct()
{
// load choices
parent::__construct($choices);
}
}
```
If you need to load the choices lazily -- that is, as soon as they are
accessed for the first time -- you can extend LazyChoiceList instead.
```
class MyChoiceList extends LazyChoiceList
{
protected function loadChoiceList()
{
// load choices
return new SimpleChoiceList($choices);
}
}
```
PaddedChoiceList, MonthChoiceList and TimezoneChoiceList were removed.
Their functionality was merged into DateType, TimeType and TimezoneType.
EntityChoiceList was adapted. The methods `getEntities()`,
`getEntitiesByKeys()`, `getIdentifier()` and `getIdentifierValues()` were
removed or made private. Instead of the first two, you can now use
`getChoices()` and `getChoicesByValues()`. For the latter two, no
replacement exists.
* The strategy for generating the `id` and `name` HTML attributes for
checkboxes and radio buttons in a choice field has changed.
Instead of appending the choice value, a generated integer is now appended
by default. Take care if your JavaScript relies on that.
* In the choice field type's template, the structure of the `choices` variable
has changed.
The `choices` variable now contains ChoiceView objects with two getters,
`getValue()` and `getLabel()`, to access the choice data. The indices of the
array are controlled by the choice field's `index_generation` option.
Before:
```
{% for choice, label in choices %}
<option value="{{ choice }}"{% if _form_is_choice_selected(form, choice) %} selected="selected"{% endif %}>
{{ label }}
</option>
{% endfor %}
```
After:
```
{% for choice in choices %}
<option value="{{ choice.value }}"{% if _form_is_choice_selected(form, choice) %} selected="selected"{% endif %}>
{{ choice.label }}
</option>
{% endfor %}
```
* In the collection type's template, the default name of the prototype field
has changed from `$$name$$` to `__name__`.
For custom names, dollar signs are no longer prepended and appended. You are
advised to prepend and append two underscores wherever you specify a value
for the field's `prototype_name` option.
Before:
```
$builder->add('tags', 'collection', array('prototype' => 'proto'));
// results in the name "$$proto$$" in the template
```
After:
```
$builder->add('tags', 'collection', array('prototype' => '__proto__'));
// results in the name "__proto__" in the template
```
* The methods `setMessage()`, `getMessageTemplate()` and
`getMessageParameters()` in the Constraint class were deprecated.
If you have implemented custom validators, you should use the
`addViolation()` method on the `ExecutionContext` object instead.
Before:
```
public function isValid($value, Constraint $constraint)
{
// ...
if (!$valid) {
$this->setMessage($constraint->message, array(
'{{ value }}' => $value,
));
return false;
}
}
```
After:
```
public function isValid($value, Constraint $constraint)
{
// ...
if (!$valid) {
$this->context->addViolation($constraint->message, array(
'{{ value }}' => $value,
));
return false;
}
}
```
* The options passed to the `getParent()` method of form types no longer
contain default options.
You should check if options exist before attempting to read their value.
Before:
```
public function getParent(array $options)
{
return 'single_text' === $options['widget'] ? 'text' : 'choice';
}
```
After:
```
public function getParent(array $options)
{
return isset($options['widget']) && 'single_text' === $options['widget'] ? 'text' : 'choice';
}
```
* The `add()`, `remove()`, `setParent()`, `bind()` and `setData()` methods in
the Form class now throw an exception if the form is already bound.
If you used these methods on bound forms, you should consider moving your
logic to an event listener that observes one of the following events:
`FormEvents::PRE_BIND`, `FormEvents::BIND_CLIENT_DATA` or
`FormEvents::BIND_NORM_DATA`.
### Session
* Flash messages now return an array based on their type. The old method is
still available but is now deprecated.
##### Retrieving the flash messages from a Twig template
Before:
```
{% if app.session.hasFlash('notice') %}
<div class="flash-notice">
{{ app.session.getFlash('notice') }}
</div>
{% endif %}
```
After:
```
{% for flashMessage in app.session.flashbag.get('notice') %}
<div class="flash-notice">
{{ flashMessage }}
</div>
{% endfor %}
```
You can process all flash messages in a single loop with:
```
{% for type, flashMessages in app.session.flashbag.all() %}
{% for flashMessage in flashMessages %}
<div class="flash-{{ type }}">
{{ flashMessage }}
</div>
{% endfor %}
{% endfor %}
```
* Session handler drivers should implement `\SessionHandlerInterface` or extend from
`Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeHandlerInterface` base class and renamed
to `Handler\FooSessionHandler`. E.g. `PdoSessionStorage` becomes `Handler\PdoSessionHandler`.
* Refactor code using `$session->*flash*()` methods to use `$session->getFlashBag()->*()`.
### FrameworkBundle
* session options: lifetime, path, domain, secure, httponly were deprecated.
Prefixed versions should now be used instead: cookie_lifetime, cookie_path, cookie_domain, cookie_secure, cookie_httponly
Before:
framework:
session:
lifetime: 3600
path: \
domain: example.com
secure: true
httponly: trueAfter:
framework:
session:
cookie_lifetime: 3600
cookie_path: \
cookie_domain: example.com
cookie_secure: true
cookie_httponly: trueAdded `handler_id`, defaults to `session.handler.native_file`.
framework:
session:
storage_id: session.storage.native
handler_id: session.handler.native_fileTo use mock session storage use the following. `handler_id` is irrelevant in this context.
framework:
session:
storage_id: session.storage.mock_file