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<?php |
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namespace Bdf\Form\Attribute\Constraint; |
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use Attribute; |
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use Bdf\Form\Attribute\AttributeForm; |
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use Bdf\Form\Attribute\ChildBuilderAttributeInterface; |
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use Bdf\Form\Attribute\Processor\CodeGenerator\AttributesProcessorGenerator; |
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use Bdf\Form\Attribute\Processor\GenerateConfiguratorStrategy; |
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use Bdf\Form\Child\ChildBuilderInterface; |
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use Bdf\Form\Constraint\Closure; |
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use Bdf\Form\ElementBuilderInterface; |
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use Nette\PhpGenerator\Literal; |
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use Symfony\Component\Validator\Constraint; |
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/** |
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* Define a custom constraint for an element, using a validation method |
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* |
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* Note: prefer the usage of constraint class, declared as attribute |
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* |
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* This attribute is equivalent to call : |
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* <code> |
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* $builder->integer('foo')->satisfy([$this, 'validateFoo'], 'Foo is invalid'); |
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* </code> |
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* |
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* Usage: |
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* <code> |
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* class MyForm extends AttributeForm |
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* { |
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* #[CustomConstraint('validateFoo', message: 'Foo is invalid')] |
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* private IntegerElement $foo; |
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* |
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* public function validateFoo($value, ElementInterface $input): bool |
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* { |
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* return $value % 5 > 2; |
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* } |
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* } |
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* </code> |
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* |
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* @implements ChildBuilderAttributeInterface<\Bdf\Form\ElementBuilderInterface> |
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* |
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* @see ElementBuilderInterface::satisfy() The called method |
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* @see Constraint |
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* @see Closure The used constraint |
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*/ |
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#[Attribute(Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)] |
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final class CallbackConstraint implements ChildBuilderAttributeInterface |
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{ |
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public function __construct( |
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/** |
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* The method name to use as validator |
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* Must be a public method declared on the form class |
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* |
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* Its prototype should be : |
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* `public function ($value, ElementInterface $input): bool|string|array{code: string message: string}|null` |
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* |
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* - Return true, or null (nothing) for a valid input |
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* - Return false for invalid input, with the default error message (or the declared one) |
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* - Return string for a custom error message |
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* - Return array with error message and code |
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* |
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* @var literal-string |
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* @readonly |
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*/ |
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private string $methodName, |
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/** |
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* The error message to use |
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* This option is used only if the validator return false, in other cases, |
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* the message returned by the validator will be used |
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* |
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* @var string|null |
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* @readonly |
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*/ |
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private ?string $message = null, |
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) { |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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1 |
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public function applyOnChildBuilder(AttributeForm $form, ChildBuilderInterface $builder): void |
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{ |
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$constraint = new Closure(['callback' => [$form, $this->methodName]]); |
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if ($this->message) { |
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$constraint->message = $this->message; |
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} |
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$builder->satisfy($constraint); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function generateCodeForChildBuilder(string $name, AttributesProcessorGenerator $generator, AttributeForm $form): void |
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{ |
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$generator->use(Closure::class, 'ClosureConstraint'); |
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$parameters = $this->message |
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? new Literal("['callback' => [\$form, ?], 'message' => ?]", [$this->methodName, $this->message]) |
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: new Literal('[$form, ?]', [$this->methodName]) |
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; |
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$generator->line('$?->satisfy(new ClosureConstraint(?));', [$name, $parameters]); |
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} |
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} |
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b2pweb /
bdf-form-attribute
