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<?php |
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namespace Bdf\Form\Attribute\Child; |
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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\Element\CallbackTransformer; |
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use Bdf\Form\Attribute\Processor\CodeGenerator\AttributesProcessorGenerator; |
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use Bdf\Form\Attribute\Processor\CodeGenerator\TransformerClassGenerator; |
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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\ElementInterface; |
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use Bdf\Form\Transformer\TransformerInterface; |
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use Nette\PhpGenerator\ClassType; |
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use Nette\PhpGenerator\Literal; |
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use Nette\PhpGenerator\Method; |
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use Nette\PhpGenerator\PsrPrinter; |
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/** |
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* Add a model transformer on the child element, by using method |
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* |
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* Transformation to entity and to input can be separated in two different method. |
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* Those methods take the value and the input element as parameters, and should return the transformed value |
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* If dedicated methods are not used, but the unified one, the third parameter is provided : |
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* - on true the transformation is to the entity |
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* - on false the transformation is to the input |
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* |
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* This attribute is equivalent to call : |
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* <code> |
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* // For unified callback |
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* $builder->string('foo')->modelTransformer([$this, 'myTransformer']); |
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* |
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* // When using two methods (toEntity: 'transformFooToEntity', toInput: 'transformFooToInput') |
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* $builder->string('foo')->modelTransformer(function ($value, ElementInterface $input, bool $toEntity) { |
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* return $toEntity ? $this->transformFooToEntity($value, $input) : $this->transformFooToInput($value, $input); |
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* }); |
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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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* #[CallbackModelTransformer(toEntity: 'fooToModel', toInput: 'fooToInput')] |
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* private IntegerElement $foo; |
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* |
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* // With unified transformer (same as above) |
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* #[CallbackModelTransformer('barTransformer')] |
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* private IntegerElement $bar; |
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* |
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* public function fooToModel(int $value, IntegerElement $input): string |
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* { |
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* return dechex($value); |
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* } |
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* |
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* public function fooToInput(string $value, IntegerElement $input): int |
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* { |
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* return hexdec($value); |
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* } |
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* |
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* public function barTransformer($value, IntegerElement $input, bool $toEntity) |
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* { |
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* return $toEntity ? dechex($value) : hexdec($value); |
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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 ChildBuilderInterface::modelTransformer() The called method |
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* @see ModelTransformer For use a transformer class as model transformer |
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* @see CallbackTransformer For use transformer in same way, but for http transformer intead of model one |
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*/ |
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#[Attribute(Attribute::TARGET_PROPERTY | Attribute::IS_REPEATABLE)] |
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final class CallbackModelTransformer implements ChildBuilderAttributeInterface |
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{ |
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public function __construct( |
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/** |
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* Method name use to define the unified transformer method |
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* If defined, the other parameters will be ignored |
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* |
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* @var literal-string|null |
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* @readonly |
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*/ |
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private ?string $callback = null, |
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/** |
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* Method name use to define the transformation process from input value to the entity |
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* |
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* @var literal-string|null |
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* @readonly |
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*/ |
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private ?string $toEntity = null, |
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/** |
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* Method name use to define the transformation process from entity value to input |
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* |
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* @var literal-string|null |
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* @readonly |
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*/ |
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private ?string $toInput = 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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2 |
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public function applyOnChildBuilder(AttributeForm $form, ChildBuilderInterface $builder): void |
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{ |
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if ($this->callback) { |
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$builder->modelTransformer([$form, $this->callback]); |
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return; |
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} |
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$builder->modelTransformer(new class ($form, $this->toInput, $this->toEntity) implements TransformerInterface { |
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public function __construct( |
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private AttributeForm $form, |
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private ?string $toInput, |
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private ?string $toEntity, |
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) { |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function transformToHttp($value, ElementInterface $input) |
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{ |
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2 |
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if (!$this->toInput) { |
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return $value; |
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} |
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return $this->form->{$this->toInput}($value, $input); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function transformFromHttp($value, ElementInterface $input) |
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{ |
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2 |
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if (!$this->toEntity) { |
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return $value; |
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} |
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return $this->form->{$this->toEntity}($value, $input); |
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} |
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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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public function generateCodeForChildBuilder(string $name, AttributesProcessorGenerator $generator, AttributeForm $form): void |
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{ |
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if ($this->callback) { |
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1 |
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$generator->line('$?->modelTransformer([$form, ?]);', [$name, $this->callback]); |
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return; |
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} |
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$transformer = new TransformerClassGenerator($generator->namespace(), $generator->printer()); |
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3 |
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$transformer->withPromotedProperty('form')->setPrivate(); |
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3 |
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if ($this->toInput) { |
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$transformer->toHttp()->setBody('return $this->form->?($value, $input);', [$this->toInput]); |
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} else { |
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$transformer->toHttp()->setBody('return $value;'); |
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} |
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3 |
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if ($this->toEntity) { |
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$transformer->fromHttp()->setBody('return $this->form->?($value, $input);', [$this->toEntity]); |
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} else { |
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$transformer->fromHttp()->setBody('return $value;'); |
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} |
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3 |
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$generator->line( |
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'$?->modelTransformer(new class ($form) ?);', |
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[$name, new Literal($transformer->generateClass())] |
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); |
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} |
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} |
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b2pweb /
bdf-form-attribute
