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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\Step; |
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use Romm\Formz\Form\Definition\Step\Step\Step; |
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use Romm\Formz\Middleware\Argument\Arguments; |
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use Romm\Formz\Middleware\Item\AbstractMiddleware; |
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use Romm\Formz\Middleware\Item\FormValidation\FormValidationSignal; |
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use Romm\Formz\Middleware\Item\Step\Service\StepMiddlewareService; |
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use Romm\Formz\Middleware\Signal\Before; |
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/** |
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* This middleware will fetch the current step in the form, based on the request |
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* context and the steps definition in the form configuration. |
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* |
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* It will check if the user has the right to stand on this step; if not, a loop |
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* on all previous steps is done to determine the first valid step: the request |
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* is then redirected to this step. |
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*/ |
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class StepFetchingMiddleware extends AbstractMiddleware implements Before, FormValidationSignal |
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{ |
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/** |
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* @var int |
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*/ |
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protected $priority = self::PRIORITY_STEP; |
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/** |
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* @var StepMiddlewareService |
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*/ |
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protected $service; |
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/** |
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* Inject the step service. |
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*/ |
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public function initializeMiddleware() |
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{ |
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$this->service = StepMiddlewareService::get(); |
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$this->service->reset($this->getFormObject()); |
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} |
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/** |
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* @see StepFetchingMiddleware |
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* |
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* @param Arguments $arguments |
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*/ |
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public function before(Arguments $arguments) |
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{ |
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$formObject = $this->getFormObject(); |
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if (false === $formObject->getDefinition()->hasSteps()) { |
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return; |
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} |
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$currentStep = $this->getCurrentStep(); |
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if ($currentStep |
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&& false === $this->service->stepIsValid($currentStep) |
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) { |
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/* |
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* The user has no right to stand on the current step, a previous |
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* valid step is determined, and the user is redirected to it. |
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*/ |
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$stepToRedirect = $this->service->getFirstInvalidStep($currentStep); |
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if ($stepToRedirect instanceof Step) { |
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$this->service->redirectToStep($stepToRedirect, $this->redirect()); |
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} |
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} |
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} |
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} |
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