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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\Persistence; |
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use Romm\Formz\Exceptions\InvalidEntryException; |
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use Romm\Formz\Form\FormInterface; |
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use Romm\Formz\Form\FormObject\FormObject; |
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/** |
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* Manages persistence for a given form object. |
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*/ |
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class PersistenceManager |
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{ |
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/** |
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* @var FormObject |
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*/ |
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protected $formObject; |
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/** |
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* @var bool |
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*/ |
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protected $formIsPersistent = false; |
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/** |
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* @var bool |
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*/ |
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protected $initializationDone = false; |
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/** |
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* @param FormObject $formObject |
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*/ |
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public function __construct(FormObject $formObject) |
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{ |
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$this->formObject = $formObject; |
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} |
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/** |
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* Loops on the registered persistence services and saves the given form |
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* instance in each one. |
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* |
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* @param FormInterface $form |
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*/ |
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public function save(FormInterface $form) |
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{ |
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$this->initializePersistence(); |
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$metadata = $this->formObject->getMetadata(); |
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$identifier = $metadata->getIdentifier(); |
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$persistenceServices = $this->getSortedPersistenceServices(); |
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foreach ($persistenceServices as $persistence) { |
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$persistence->save($metadata, $form); |
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} |
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if (count($persistenceServices) > 0) { |
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$this->formIsPersistent = true; |
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} |
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/* |
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* If the form identifier has changed during the saving process (for |
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* instance the form has been saved in database and has a new uid), the |
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* metadata is persisted to be sure the form identifier is saved. |
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*/ |
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if ($identifier !== $metadata->getIdentifier()) { |
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$metadata->commit(); |
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} |
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} |
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/** |
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* Loops on the registered persistence services, and tries to fetch the |
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* form. If a form is found, it is returned and the loop breaks. If not form |
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* is found, `null` is returned. |
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* |
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* @return FormInterface|null |
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* @throws InvalidEntryException |
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*/ |
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public function fetchFirst() |
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{ |
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$this->initializePersistence(); |
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$metadata = $this->formObject->getMetadata(); |
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foreach ($this->getSortedPersistenceServices() as $persistence) { |
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if ($persistence->has($metadata)) { |
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$form = $persistence->fetch($metadata); |
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if (false === $form instanceof FormInterface) { |
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throw InvalidEntryException::persistenceInvalidEntryFetched($persistence, $form); |
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} |
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$this->formIsPersistent = true; |
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return $form; |
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} |
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} |
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return null; |
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} |
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/** |
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* Loops on persistence services and initializes them. |
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*/ |
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protected function initializePersistence() |
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{ |
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if (false === $this->initializationDone) { |
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$this->initializationDone = true; |
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foreach ($this->formObject->getConfiguration()->getPersistence() as $persistence) { |
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$persistence->initialize(); |
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} |
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} |
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} |
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/** |
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* Sorts the persistence services, based on their priority property: the |
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* ones with the highest priority will come first. |
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* |
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* @return PersistenceInterface[] |
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*/ |
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protected function getSortedPersistenceServices() |
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{ |
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$items = $this->formObject->getConfiguration()->getPersistence(); |
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usort($items, function (PersistenceInterface $a, PersistenceInterface $b) { |
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$priorityA = (int)$a->getPriority(); |
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$priorityB = (int)$b->getPriority(); |
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if ($priorityA === $priorityB) { |
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return 0; |
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} |
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return $priorityA < $priorityB ? 1 : -1; |
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}); |
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return $items; |
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} |
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/** |
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* @return bool |
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*/ |
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public function formIsPersistent() |
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{ |
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return $this->formIsPersistent; |
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} |
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} |
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romm /
formz
