376 lines
10 KiB
Markdown
376 lines
10 KiB
Markdown
UPGRADE FROM 2.0 to 2.1
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=======================
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### General
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* The merging strategy for `assets_base_urls` and `base_urls` has changed.
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Unlike most configuration blocks, successive values for `assets_base_urls`
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will overwrite each other instead of being merged. This behavior was chosen
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because developers will typically define base URL's for each environment.
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Given that most projects tend to inherit configurations (e.g.
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`config_test.yml` imports `config_dev.yml`) and/or share a common base
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configuration (i.e. `config.yml`), merging could yield a set of base URL's
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for multiple environments.
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### HttpFoundation
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* Locale management was moved from the Session class to the Request class.
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##### Configuring the default locale
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Before:
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```
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framework:
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session:
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default_locale: fr
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```
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After:
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```
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framework:
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default_locale: fr
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```
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##### Retrieving the locale from a Twig template
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Before: `{{ app.request.session.locale }}` or `{{ app.session.locale }}`
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After: `{{ app.request.locale }}`
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##### Retrieving the locale from a PHP template
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Before: `$view['session']->getLocale()`
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After: `$view['request']->getLocale()`
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##### Retrieving the locale from PHP code
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Before: `$session->getLocale()`
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After: `$request->getLocale()`
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### Security
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* `Symfony\Component\Security\Core\User\UserInterface::equals()` has moved to
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`Symfony\Component\Security\Core\User\EquatableInterface::isEqualTo()`.
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You must rename the `equals()` method in your implementation of the `User`
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class to `isEqualTo()` and implement `EquatableInterface`. Apart from that,
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no other changes are required.
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Alternatively, you may use the default implementation provided by
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`AbstractToken::hasUserChanged()` if you have no need of custom comparison
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logic. In this case, do not implement `EquatableInterface` and remove your
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comparison method.
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Before:
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```
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class User implements UserInterface
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{
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// ...
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public function equals(UserInterface $user) { /* ... */ }
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// ...
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}
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```
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After:
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```
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class User implements UserInterface, EquatableInterface
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{
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// ...
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public function isEqualTo(UserInterface $user) { /* ... */ }
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// ...
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}
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```
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### Form and Validator
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* Child forms are no longer automatically validated. That means that you must
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explicitly set the `Valid` constraint in your model if you want to validate
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associated objects.
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If you don't want to set the `Valid` constraint, or if there is no reference
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from the data of the parent form to the data of the child form, you can
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enable BC behavior by setting the `cascade_validation` form option to `true`
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on the parent form.
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* Changed implementation of choice lists
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ArrayChoiceList was replaced. If you have custom classes that extend this
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class, you must now extend SimpleChoiceList.
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Before:
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```
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class MyChoiceList extends ArrayChoiceList
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{
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protected function load()
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{
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parent::load();
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// load choices
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$this->choices = $choices;
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}
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}
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```
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After:
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```
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class MyChoiceList extends SimpleChoiceList
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{
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public function __construct()
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{
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// load choices
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parent::__construct($choices);
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}
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}
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```
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If you need to load the choices lazily -- that is, as soon as they are
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accessed for the first time -- you can extend LazyChoiceList instead.
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```
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class MyChoiceList extends LazyChoiceList
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{
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protected function loadChoiceList()
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{
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// load choices
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return new SimpleChoiceList($choices);
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}
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}
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```
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PaddedChoiceList, MonthChoiceList and TimezoneChoiceList were removed.
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Their functionality was merged into DateType, TimeType and TimezoneType.
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EntityChoiceList was adapted. The methods `getEntities()`,
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`getEntitiesByKeys()`, `getIdentifier()` and `getIdentifierValues()` were
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removed or made private. Instead of the first two, you can now use
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`getChoices()` and `getChoicesByValues()`. For the latter two, no
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replacement exists.
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* The strategy for generating the `id` and `name` HTML attributes for
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checkboxes and radio buttons in a choice field has changed.
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Instead of appending the choice value, a generated integer is now appended
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by default. Take care if your JavaScript relies on that.
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* In the choice field type's template, the structure of the `choices` variable
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has changed.
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The `choices` variable now contains ChoiceView objects with two getters,
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`getValue()` and `getLabel()`, to access the choice data. The indices of the
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array are controlled by the choice field's `index_generation` option.
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Before:
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```
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{% for choice, label in choices %}
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<option value="{{ choice }}"{% if _form_is_choice_selected(form, choice) %} selected="selected"{% endif %}>
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{{ label }}
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</option>
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{% endfor %}
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```
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After:
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```
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{% for choice in choices %}
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<option value="{{ choice.value }}"{% if _form_is_choice_selected(form, choice) %} selected="selected"{% endif %}>
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{{ choice.label }}
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</option>
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{% endfor %}
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```
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* In the collection type's template, the default name of the prototype field
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has changed from `$$name$$` to `__name__`.
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For custom names, dollar signs are no longer prepended and appended. You are
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advised to prepend and append two underscores wherever you specify a value
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for the field's `prototype_name` option.
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Before:
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```
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$builder->add('tags', 'collection', array('prototype' => 'proto'));
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// results in the name "$$proto$$" in the template
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```
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After:
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```
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$builder->add('tags', 'collection', array('prototype' => '__proto__'));
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// results in the name "__proto__" in the template
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```
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* The methods `setMessage()`, `getMessageTemplate()` and
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`getMessageParameters()` in the Constraint class were deprecated.
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If you have implemented custom validators, you should use the
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`addViolation()` method on the `ExecutionContext` object instead.
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Before:
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```
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public function isValid($value, Constraint $constraint)
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{
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// ...
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if (!$valid) {
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$this->setMessage($constraint->message, array(
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'{{ value }}' => $value,
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));
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return false;
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}
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}
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```
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After:
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```
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public function isValid($value, Constraint $constraint)
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{
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// ...
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if (!$valid) {
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$this->context->addViolation($constraint->message, array(
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'{{ value }}' => $value,
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));
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return false;
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}
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}
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```
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* The options passed to the `getParent()` method of form types no longer
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contain default options.
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You should check if options exist before attempting to read their value.
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Before:
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```
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public function getParent(array $options)
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{
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return 'single_text' === $options['widget'] ? 'text' : 'choice';
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}
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```
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After:
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```
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public function getParent(array $options)
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{
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return isset($options['widget']) && 'single_text' === $options['widget'] ? 'text' : 'choice';
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}
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```
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* The `add()`, `remove()`, `setParent()`, `bind()` and `setData()` methods in
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the Form class now throw an exception if the form is already bound.
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If you used these methods on bound forms, you should consider moving your
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logic to an event listener that observes one of the following events:
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`FormEvents::PRE_BIND`, `FormEvents::BIND_CLIENT_DATA` or
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`FormEvents::BIND_NORM_DATA`.
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### Session
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* Flash messages now return an array based on their type. The old method is
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still available but is now deprecated.
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##### Retrieving the flash messages from a Twig template
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Before:
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```
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{% if app.session.hasFlash('notice') %}
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<div class="flash-notice">
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{{ app.session.getFlash('notice') }}
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</div>
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{% endif %}
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```
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After:
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```
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{% for flashMessage in app.session.flashbag.get('notice') %}
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<div class="flash-notice">
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{{ flashMessage }}
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</div>
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{% endfor %}
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```
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You can process all flash messages in a single loop with:
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```
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{% for type, flashMessages in app.session.flashbag.all() %}
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{% for flashMessage in flashMessages %}
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<div class="flash-{{ type }}">
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{{ flashMessage }}
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</div>
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{% endfor %}
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{% endfor %}
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```
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* Session handler drivers should implement `\SessionHandlerInterface` or extend from
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`Symfony\Component\HttpFoundation\Session\Storage\Handler\NativeHandlerInterface` base class and renamed
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to `Handler\FooSessionHandler`. E.g. `PdoSessionStorage` becomes `Handler\PdoSessionHandler`.
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* Refactor code using `$session->*flash*()` methods to use `$session->getFlashBag()->*()`.
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### FrameworkBundle
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* session options: lifetime, path, domain, secure, httponly were deprecated.
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Prefixed versions should now be used instead: cookie_lifetime, cookie_path, cookie_domain, cookie_secure, cookie_httponly
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Before:
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```
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framework:
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session:
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lifetime: 3600
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path: \
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domain: example.com
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secure: true
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httponly: true
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```
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After:
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```
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framework:
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session:
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cookie_lifetime: 3600
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cookie_path: \
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cookie_domain: example.com
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cookie_secure: true
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cookie_httponly: true
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```
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Added `handler_id`, defaults to `session.handler.native_file`.
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```
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framework:
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session:
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storage_id: session.storage.native
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handler_id: session.handler.native_file
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```
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To use mock session storage use the following. `handler_id` is irrelevant in this context.
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```
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framework:
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session:
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storage_id: session.storage.mock_file
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```
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