Commits
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7cecb4e [Form] added support for parent of FormBuilder
Discussion
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[Form] added support for parent of FormBuilder
Bug fix: no
Feature addition: yes
Backwards compatibility break: no
Symfony2 tests pass: yes
Fixes the following tickets: -
Todo: -
In some cases of building forms, it is good to know the attributes of the parent builder. In my case I want to automaticaly add the subscriber to the fields, whose parent builder has a concrete attribute.
Replace #2882
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);
With the form factory there was no reasonable way to implement instantiation of custom form classes. So the implementation was changed to let the classes instantiate themselves. A FormContext instance with default settings has to be passed to the creation method. This context is by default configured in the DI container.
$context = $this->get('form.context');
// or
$context = FormContext::buildDefault();
$form = MyFormClass::create($context, 'author');
If you want to circumvent this process, you can also create a form manually. Remember that the services stored in the default context won't be available then unless you pass them explicitely.
$form = new MyFormClass('author');