The listener is used by the Collection type as well as the Choice and Entity type (with multiple
selection). The effect is that you can have for example this model:
class Article
{
public function addTag($tag) { ... }
public function removeTag($tag) { ... }
public function getTags($tag) { ... }
}
You can create a form for the article with a field "tags" of either type "collection" or "choice"
(or "entity"). The field will correctly use the three methods of the model for displaying and
editing tags.
Commits
-------
4d64d90 Allow empty result; change default *choices* value to **null** instead of **array()**. - added *testEmptyChoicesAreManaged* test - `null` as default value for choices. - is_array() used to test if choices are user-defined. - `null` as default value in __construct too. - `null` as default value for choices in EntityType.
Discussion
----------
[Doctrine][Bridge] EntityType: Allow empty result; default `choices` value changed to null
Bug fix: yes
Feature addition: no
Backwards compatibility break: no
Symfony2 tests pass: yes
References the following tickets: #2504
- added *testEmptyChoicesAreManaged* test
- `null` as default value for choices.
- is_array() used to test if choices are user-defined.
- `null` as default value in __construct too.
- `null` as default value for choices in EntityType.
I squashed commits from PR #2504 as requested.
- added *testEmptyChoicesAreManaged* test
- `null` as default value for choices.
- is_array() used to test if choices are user-defined.
- `null` as default value in __construct too.
- `null` as default value for choices in EntityType.
This is a common case with optional Entity associations:
$user->getGroup()->getName()
The property path `group.name` (traversing from the User Entity), when
the User is not assigned to a Group, will throw an UnexpectedTypeException.
This is caught so that the User can still be listed as an option, just without
any nesting.
* added a RegistryInterface
* changed all classes to depend on the Registry instead of a specific EntityManager
This is more consistent as the validator already took the registry and this allows
to use any entity manager in Forms.
* CodeMeme/889-EntityChoiceField-grouped-choices:
Whitespace cleanup
Fixed EntityChoiceList to support grouped entities Refs #889
Added test for grouped entity choice list Refs #889
The extension classes are now the only constructor argument of the FormFactory class. They replace the existing "type loader" classes.
new FormFactory(array(
new CoreExtension($validator, $storage),
new CsrfExtension($csrfProvider),
new DoctrineOrmExtension($em),
));
Together with a few upcoming commits this mechanism will make
* extension of the form framework in bundles and
* usage of the forms outside of Symfony2
much easier.
The data can now be passed to all creation methods:
$form = $factory->create('form', $data);
By default, a form will receive the name of its type ("form" in above example). If you wish to pass a custom name, use createNamed():
$form = $factory->createNamed('form', 'myform', $data);
