Closed
Description
In my web application I commonly use the pattern of mapping a collection of fields to an array on one of my entities. As of upgrading to 2.3 today I've noticed that if a collection has only one field and that is empty, then an UnexpectedTypeException is thrown on line 76 of EventListener/ResizeFormListener.php. I tried adding an empty_data option of either null or array to both the collections and the field, but an empty string was still returned.
Also, the data is being posted as an array application[person][citizenship][countries][0], which class would be squishing this down to a string?
This is an example of one of my collections, here the aaws field is just a choice that gets its values from a webservice.
$builder->add('countries', 'collection', array('type' => 'aaws', 'options' => array(
'label' => 'Citizenship Country',
'app_data_attr' => 'countries',
'empty_value' => 'Choose an option',
'empty_data' => null,
'required' => false,
'preferred_choices' => array('USA'),
'attr' => array('class' => 'gfu-required-field')
),
'allow_add' => true,
'allow_delete' => true,
'prototype' => true,
'error_bubbling' => false,
'empty_data' => null,
)Here is the plain text of my stack trace
[1] Symfony\Component\Form\Exception\UnexpectedTypeException: Expected argument of type "array or (\Traversable and \ArrayAccess)", "string" given
at n/a
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/EventListener/ResizeFormListener.php line 76
at Symfony\Component\Form\Extension\Core\EventListener\ResizeFormListener->preSetData(object(FormEvent))
in line
at call_user_func(array(object(ResizeFormListener), 'preSetData'), object(FormEvent))
in /vagrant/app/cache/dev/classes.php line 1676
at Symfony\Component\EventDispatcher\EventDispatcher->doDispatch(array(array(object(ResizeFormListener), 'preSetData')), 'form.pre_set_data', object(FormEvent))
in /vagrant/app/cache/dev/classes.php line 1609
at Symfony\Component\EventDispatcher\EventDispatcher->dispatch('form.pre_set_data', object(FormEvent))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/EventDispatcher/ImmutableEventDispatcher.php line 42
at Symfony\Component\EventDispatcher\ImmutableEventDispatcher->dispatch('form.pre_set_data', object(FormEvent))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 321
at Symfony\Component\Form\Form->setData('')
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php line 59
at Symfony\Component\Form\Extension\Core\DataMapper\PropertyPathMapper->mapDataToForms(object(Ethnicity), object(RecursiveIteratorIterator))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 375
at Symfony\Component\Form\Form->setData(object(Ethnicity))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php line 59
at Symfony\Component\Form\Extension\Core\DataMapper\PropertyPathMapper->mapDataToForms(object(Person), object(RecursiveIteratorIterator))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 375
at Symfony\Component\Form\Form->setData(object(Person))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Extension/Core/DataMapper/PropertyPathMapper.php line 59
at Symfony\Component\Form\Extension\Core\DataMapper\PropertyPathMapper->mapDataToForms(object(Application), object(RecursiveIteratorIterator))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 375
at Symfony\Component\Form\Form->setData(object(Application))
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/Form.php line 467
at Symfony\Component\Form\Form->initialize()
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/FormBuilder.php line 229
at Symfony\Component\Form\FormBuilder->getForm()
in /vagrant/vendor/symfony/symfony/src/Symfony/Component/Form/FormFactory.php line 39
at Symfony\Component\Form\FormFactory->create(object(ApplicationType), object(Application), array('validation_groups' => array('Default'), 'gfu_submit' => false))
in /vagrant/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Controller/Controller.php line 163
at Symfony\Bundle\FrameworkBundle\Controller\Controller->createForm(object(ApplicationType), object(Application), array('validation_groups' => array('Default'), 'gfu_submit' => false))
in /vagrant/src/Gfu/AppBundle/Controller/AppController.php line 472
at Gfu\AppBundle\Controller\AppController->editAction('72', object(Request))
in line
at call_user_func_array(array(object(AppController), 'editAction'), array('72', object(Request)))
in /vagrant/app/bootstrap.php.cache line 2774
at Symfony\Component\HttpKernel\HttpKernel->handleRaw(object(Request), '1')
in /vagrant/app/bootstrap.php.cache line 2748
at Symfony\Component\HttpKernel\HttpKernel->handle(object(Request), '1', true)
in /vagrant/app/bootstrap.php.cache line 2878
at Symfony\Component\HttpKernel\DependencyInjection\ContainerAwareHttpKernel->handle(object(Request), '1', true)
in /vagrant/app/bootstrap.php.cache line 2179
at Symfony\Component\HttpKernel\Kernel->handle(object(Request))
in /vagrant/web/app_dev.php line 28