Use Expression constrainst on non object - symfony

Question

I have a form like it:
class FeatureDynamicSequenceType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('upstream', IntegerType::class, [
'data' => 0,
'constraints' => [
new LessThan([
'value' => 1000,
]),
],
])
->add('downstream', IntegerType::class, [
'data' => 0,
'constraints' => [
new LessThan([
'value' => 1000,
]),
],
])
->add('showUtr', CheckboxType::class,[
'data' => true,
'label' => 'Show UTR',
'required' => false,
])
->add('showIntron', CheckboxType::class,[
'data' => true,
'required' => false,
])
;
}
}
In this form, I would like add a Constrainst that check:
If showUtr or ShowIntron are not checked, then upstream and downstreal can't be > to 0.
Then I want something like it:
->add('upstream', IntegerType::class, [
'data' => 0,
'constraints' => [
new LessThan([
'value' => 1000,
]),
new Expression([
'expression' => 'value > 0 && (this.showUtr || this.showIntron)',
'message' => 'You cannot set upstream if you do not display UTRs and introns.',
]),
],
])
But I can't use it, because it's not an object, value give me the value of the upstream field (it's ok), but I can't access to the showUtr or showIntron value...
EDIT: try with Callback closure
->add('upstream', IntegerType::class, [
'data' => 0,
'constraints' => [
new LessThan([
'value' => 1000,
]),
new Callback([
'callback' => function($data, ExecutionContextInterface $executionContectInterface) {
dump($data);
$executionContectInterface->addViolation('You cannot set upstream if you do not display UTRs and introns.');
},
])
],
])
I have the same problem, $data just contain the field value.
I don't really want to create an Entity, because I don't persist it... And I can't believe there is not a solution to check it whithout creating an Entity.

Answer 1

I answered in a previous question here

Answer 2

I solved it by using:
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'constraints' => [
new Callback([
'callback' => function($data, ExecutionContextInterface $executionContectInterface) {
if ($data['upstream'] > 0 && (!$data['showUtr'] || !$data['showIntron'])) {
$executionContectInterface->buildViolation('You cannot set upstream if you do not display UTRs and introns.')
->atPath('[upstream]')
->addViolation()
;
}
},
]),
],
]);
}
The full code is:
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('upstream', IntegerType::class, [
'data' => 0,
'constraints' => [
new LessThan([
'value' => 1000,
]),
],
])
->add('downstream', IntegerType::class, [
'data' => 0,
'constraints' => [
new LessThan([
'value' => 1000,
]),
],
])
->add('showUtr', CheckboxType::class, [
'data' => true,
'label' => 'Show UTR',
'required' => false,
])
->add('showIntron', CheckboxType::class, [
'data' => true,
'required' => false,
])
;
}
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults([
'constraints' => [
new Callback([
'callback' => function($data, ExecutionContextInterface $executionContectInterface) {
if ($data['upstream'] > 0 && (!$data['showUtr'] || !$data['showIntron'])) {
$executionContectInterface->buildViolation('You cannot set upstream if you do not display UTRs and introns.')
->atPath('[upstream]')
->addViolation()
;
}
},
]),
],
]);
}