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<?php |
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/** |
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* This file is part of the Zemit Framework. |
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* |
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* (c) Zemit Team <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE.txt |
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* file that was distributed with this source code. |
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*/ |
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namespace Zemit\Mvc\Model; |
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use Exception; |
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use Zemit\Mvc\Model; |
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use Zemit\Mvc\Model\AbstractTrait\AbstractEventsManager; |
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use Zemit\Mvc\Model\Behavior\Position as PositionBehavior; |
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trait Position |
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{ |
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use AbstractEventsManager; |
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use Behavior; |
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use Options; |
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/** |
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* Initializing Position |
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*/ |
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public function initializePosition(?array $options = null): void |
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{ |
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$options ??= $this->getOptionsManager()->get('position') ?? []; |
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$this->setPositionBehavior(new PositionBehavior($options)); |
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} |
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/** |
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* Set Position Behavior |
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*/ |
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public function setPositionBehavior(PositionBehavior $positionBehavior): void |
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{ |
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$this->setBehavior('position', $positionBehavior); |
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} |
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/** |
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* Get Position Behavior |
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*/ |
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public function getPositionBehavior(): PositionBehavior |
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{ |
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$behavior = $this->getBehavior('position'); |
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assert($behavior instanceof PositionBehavior); |
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return $behavior; |
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} |
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/** |
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* Reorders the current object's position in the list. |
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* - Update position+1 done using afterSave event |
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* |
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* @param int|null $position The new position for the object. If not provided, the default behavior's position field will be used. |
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* @param string|null $positionField The field on which the position is stored. If not provided, the default behavior's field will be used. |
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* |
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* @return bool Returns true if the reorder operation was successful, false otherwise. |
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* @throws Exception |
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*/ |
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public function reorder(?int $position = null, ?string $positionField = null): bool |
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{ |
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assert($this instanceof Model); |
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$positionField ??= $this->getPositionBehavior()->getField(); |
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if ($this->fireEventCancel('beforeReorder') === false) { |
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return false; |
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} |
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$this->assign([$positionField => $position], [$positionField]); |
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$saved = $this->save() && (!$this->hasSnapshotData() || $this->hasUpdated($positionField)); |
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if ($saved) { |
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$this->fireEvent('afterReorder'); |
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} |
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return $saved; |
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} |
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} |
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zemit-cms /
core
