8000 [Form] Fix ChoiceType to ensure submitted data is not nested unnecessarily by issei-m · Pull Request #21267 · symfony/symfony · GitHub
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[Form] Fix ChoiceType to ensure submitted data is not nested unnecessarily #21267

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[Form] Fix ChoiceType to ensure submitted data is not nested unnecessarily #21267

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cd7d2a4
[Form] Simplify FQCN in ChoiceTypeTest
issei-m Jan 13, 2017
fb33ad2
[Form] Add failure test case to ChoiceTypeTest for invalid nested value
issei-m Jan 13, 2017
98195dd
[Form] Fix ChoiceType to ensure submitted data is not nested unnecess…
issei-m Jan 13, 2017
9d406db
Fix CS
issei-m Jan 13, 2017
61c80c2
[Form] Fix validation-listener logic and move block to the end-of-method
issei-m Jan 19, 2017
eb4d85a
Update comment
issei-m Feb 9, 2017
d6d2db5
Move test data provider after the test method
issei-m Feb 10, 2017
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[Form] Fix ChoiceType to ensure submitted data is not nested unnecess… 
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@issei-m
issei-m committed Jan 13, 2017
commit 98195dd06d85203e9a3e6cd1c7bafe9c6e30901e
16 changes: 16 additions & 0 deletions src/Symfony/Component/Form/Extension/Core/Type/ChoiceType.php
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Expand Up @@ -65,6 +65,22 @@ public function __construct(ChoiceListFactoryInterface $choiceListFactory = null
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
// To avoid some problem against treating of array (e.g. Array to string conversion),
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Could you please move this new block at the end of the method?

// we have to first ensure the all elements of submitted data ain't an array.
$builder->addEventListener(FormEvents::PRE_SUBMIT, function (FormEvent $event) {
$data = $event->getData();

if (!is_array($data)) {
return;
}

foreach ($data as $v) {
if (is_array($v)) {
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Should be:

if (null !== $v && !is_string($v)) {
    throw new TransformationFailedException('All choices submitted must be NULL or strings.');
}

throw new TransformationFailedException('All elements of submitted array must not be an array.');
}
}
}, 256);

if ($options['expanded']) {
$builder->setDataMapper($options['multiple'] ? new CheckboxListMapper() : new RadioListMapper());

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