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<?php |
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/** |
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* apparat-object |
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* |
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* @category Apparat |
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* @package Apparat\Object |
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* @subpackage Apparat\Object\Domain |
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* @author Joschi Kuphal <[email protected]> / @jkphl |
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* @copyright Copyright © 2016 Joschi Kuphal <[email protected]> / @jkphl |
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* @license http://opensource.org/licenses/MIT The MIT License (MIT) |
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*/ |
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/*********************************************************************************** |
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* The MIT License (MIT) |
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* |
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* Copyright © 2016 Joschi Kuphal <[email protected]> / @jkphl |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy of |
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* this software and associated documentation files (the "Software"), to deal in |
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* the Software without restriction, including without limitation the rights to |
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of |
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* the Software, and to permit persons to whom the Software is furnished to do so, |
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* subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in all |
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* copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS |
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR |
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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***********************************************************************************/ |
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namespace Apparat\Object\Domain\Model\Object\Traits; |
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use Apparat\Kernel\Ports\Kernel; |
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use Apparat\Object\Domain\Model\Object\AbstractObject; |
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use Apparat\Object\Domain\Model\Object\ObjectInterface; |
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use Apparat\Object\Domain\Model\Object\OutOfBoundsException; |
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use Apparat\Object\Domain\Model\Object\Revision; |
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/** |
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* Iterable trait |
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* |
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* @package Apparat\Object\Domain |
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* @property Revision $currentRevision |
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* @property Revision $latestRevision |
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* @property AbstractObject|\Countable $this |
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*/ |
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trait IterableTrait |
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{ |
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/** |
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* Revision iterator |
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* |
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* @var Revision |
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*/ |
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protected $nextRevision; |
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/** |
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* Return the current revision |
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* |
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* @return ObjectInterface Self reference |
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*/ |
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public function current() |
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{ |
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return $this->useRevision($this->nextRevision); |
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} |
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/** |
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* Forward to the next revision |
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*/ |
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public function next() |
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{ |
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$this->nextRevision = $this->nextRevision->increment(); |
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if ($this->nextRevision->getRevision() == $this->latestRevision->getRevision()) { |
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$this->nextRevision = $this->nextRevision->setDraft($this->latestRevision->isDraft()); |
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} |
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} |
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/** |
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* Return the current revision number |
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* |
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* @return Revision Current (next) revision |
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*/ |
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1 |
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public function key() |
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{ |
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return $this->nextRevision; |
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} |
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/** |
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* Return whether the current revision is valid |
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* |
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* @return bool Current revision is valid |
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*/ |
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public function valid() |
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{ |
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/** @var AbstractObject $that */ |
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$that =& $this; |
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return $this->nextRevision->getRevision() <= count($that); |
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} |
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/** |
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* Rewind to the first revision |
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*/ |
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public function rewind() |
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{ |
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$this->nextRevision = ($this->latestRevision->getRevision() > 1) ? |
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Kernel::create(Revision::class, [1]) : $this->latestRevision; |
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$this->useRevision($this->nextRevision); |
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} |
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/** |
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* Return the number of available revisions |
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* |
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* @return int Number of available revisions |
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*/ |
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public function count() |
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{ |
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return $this->latestRevision->getRevision(); |
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} |
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/** |
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* Use a specific object revision |
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* |
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* @param Revision $revision Revision to be used |
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* @return ObjectInterface Object |
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* @throws OutOfBoundsException If a revision beyond the latest one is requested |
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*/ |
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abstract public function useRevision(Revision $revision); |
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} |
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apparat /
object
