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<?php |
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/* |
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* 2017 Romain CANON <[email protected]> |
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* |
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* This file is part of the TYPO3 FormZ project. |
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* It is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License, either |
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* version 3 of the License, or any later version. |
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* |
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* For the full copyright and license information, see: |
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* http://www.gnu.org/licenses/gpl-3.0.html |
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*/ |
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namespace Romm\Formz\Middleware\Item\FormValidation; |
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use Romm\Formz\Core\Core; |
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use Romm\Formz\Form\Definition\Field\Field; |
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use Romm\Formz\Middleware\Item\FieldValidation\FieldValidationArguments; |
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use Romm\Formz\Middleware\Item\FieldValidation\FieldValidationSignal; |
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use Romm\Formz\Middleware\Item\OnBeginMiddleware; |
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use Romm\Formz\Middleware\Processor\PresetMiddlewareInterface; |
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use Romm\Formz\Middleware\Processor\RemoveFromSingleFieldValidationContext; |
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use Romm\Formz\Middleware\Signal\SendsMiddlewareSignal; |
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use Romm\Formz\Validation\Validator\Form\AbstractFormValidator; |
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/** |
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* This middleware takes care of validating the form instance, with a proper |
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* form validator instance. |
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* |
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* You can bind middlewares to the signal `FormValidationSignal`, which will be |
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* dispatched if and only if the form was submitted by the user. |
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* |
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* Please note that this middleware will not be called when being in a "single |
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* field validation context". |
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* |
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* @see \Romm\Formz\Middleware\Processor\RemoveFromSingleFieldValidationContext |
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*/ |
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class FormValidationMiddleware extends OnBeginMiddleware implements PresetMiddlewareInterface, SendsMiddlewareSignal, RemoveFromSingleFieldValidationContext |
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{ |
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/** |
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* @var \Romm\Formz\Middleware\Item\FormValidation\FormValidationMiddlewareOption |
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*/ |
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protected $options; |
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/** |
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* @var AbstractFormValidator |
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*/ |
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protected $validator; |
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/** |
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* @see FormValidationMiddleware |
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*/ |
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protected function process() |
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{ |
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$formObject = $this->getFormObject(); |
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$this->beforeSignal(FormValidationSignal::class)->dispatch(); |
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if ($formObject->hasForm() |
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&& $formObject->formWasSubmitted() |
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) { |
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$this->validator = Core::instantiate($this->options->getFormValidatorClassName()); |
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$this->injectFieldValidationCallback(); |
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$this->validator->validate($formObject->getForm()); |
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$this->afterSignal(FormValidationSignal::class)->dispatch(); |
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} |
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} |
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/** |
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* Injects a callback in the form validator data object. The callback will |
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* be called each time a field is validated by the validator, and will allow |
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* to dispatch a field validation signal to other middlewares. |
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*/ |
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protected function injectFieldValidationCallback() |
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{ |
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$callback = function (Field $field) { |
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$this->afterSignal(FieldValidationSignal::class) |
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->withArguments(new FieldValidationArguments($field)) |
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->dispatch(); |
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}; |
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$this->validator->getDataObject()->addFieldValidationCallback($callback); |
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} |
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/** |
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* @return array |
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*/ |
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public function getAllowedSignals() |
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{ |
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return [FormValidationSignal::class, FieldValidationSignal::class]; |
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} |
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} |
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romm /
formz
