Symfony 2.8。我正在使用带有自定义条目的集合作为表单,并传递了一些约束。现在我的代码看起来像:
FirstFormType.php
:
class FirstFormType extends AbstractFormType
{
/** @inheritdoc */
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('rates', CollectionType::class, [
'entry_type' => new SecondFormType([new LessThanOrEqual(300)]),
'allow_add' => true,
'allow_delete' => true,
'delete_empty' => true,
'constraints' => [
new NotBlank(),
new Count(['min' => 1]),
],
])
;
}
}
SecondFormType.php
:
class SecondFormType extends AbstractFormType
{
/** @var array */
private $constraints;
/** @param array $constraints */
public function __construct(array $constraints = [])
{
$this->constraints = $constraints;
}
/** @inheritdoc */
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('amount', NumberType::class, [
'scale' => 2,
'constraints' => array_merge($this->constraints, [new CustomConstraint()]),
])
;
}
}
我也有ThirdFormType
,这FirstFormType
与传递给SecondFormType
. 但是我想new SecondFormType([...])
换成FQCN,我觉得可以更正确地继承约束。你有什么想法我该怎么做?