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<?php |
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/** |
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* @copyright Copyright (c) Flipbox Digital Limited |
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* @license https://github.com/flipboxfactory/craft-element-lists/LICENSE |
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* @link https://github.com/flipboxfactory/craft-element-lists/ |
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*/ |
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namespace flipbox\craft\element\lists\records; |
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use Craft; |
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use craft\base\Element; |
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use craft\base\ElementInterface; |
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use flipbox\craft\ember\records\ActiveRecordTrait; |
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use yii\base\Model; |
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/** |
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* This trait assists w/ managing a 'targetId' attribute and a 'target' object, keeping them |
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* in sync if one of the other is altered. In addition, depending on the operation process, a |
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* newly created object could be set and saved. Subsequent calls to retrieve the Id would return |
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* the newly created object Id. |
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* |
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* @author Flipbox Factory <[email protected]> |
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* @since 3.0.0 |
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*/ |
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trait TargetAttributeTrait |
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{ |
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use ActiveRecordTrait; |
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/** |
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* @var Element|ElementInterface|null |
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*/ |
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private $target; |
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/** |
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* @param string $attribute |
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* @return Element|ElementInterface|null |
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*/ |
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abstract protected function resolveElementFromIdAttribute(string $attribute); |
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/** |
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* @param mixed $element |
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* @return Element|ElementInterface|null |
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*/ |
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abstract protected function resolveElement($element = null); |
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/** |
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* @return bool |
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*/ |
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public function isTargetSet(): bool |
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{ |
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return null !== $this->target; |
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} |
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/** |
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* @return array |
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*/ |
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protected function targetRules(): array |
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{ |
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return [ |
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[ |
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[ |
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'targetId' |
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], |
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'number', |
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'integerOnly' => true |
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], |
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[ |
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[ |
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'targetId', |
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'target' |
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], |
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'safe', |
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'on' => [ |
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Model::SCENARIO_DEFAULT |
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] |
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] |
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]; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function targetAttributeLabels(): array |
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{ |
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return [ |
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'targetId' => Craft::t('app', 'Target Id') |
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]; |
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} |
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/** |
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* @param int|null $id |
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* @return $this |
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*/ |
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public function setTargetId(int $id = null) |
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{ |
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$this->setAttribute('targetId', $id); |
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if (null !== $this->target && $id !== $this->target->getId()) { |
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$this->target = null; |
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} |
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return $this; |
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} |
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/** |
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* Get associated targetId |
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* |
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* @return int|null |
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*/ |
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public function getTargetId() |
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{ |
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if (null === $this->getAttribute('targetId') && null !== $this->target) { |
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$this->setTargetId($this->target->getId()); |
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} |
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return $this->getAttribute('targetId'); |
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} |
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/** |
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* @param mixed $target |
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* @return $this |
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*/ |
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public function setTarget($target = null) |
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{ |
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$this->target = null; |
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$this->setAttribute('targetId', null); |
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if ($target = $this->resolveElement($target)) { |
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$this->target = $target; |
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$this->setAttribute('targetId', $target->getId()); |
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} |
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return $this; |
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} |
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/** |
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* @return Element|ElementInterface|null |
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*/ |
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public function getTarget() |
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{ |
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if ($this->target === null) { |
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$target = $this->resolveElementFromIdAttribute('targetId'); |
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$this->setTarget($target); |
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return $target; |
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} |
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$targetId = $this->getAttribute('targetId'); |
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if ($targetId !== null && $targetId !== $this->target->getId()) { |
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$this->target = null; |
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return $this->getTarget(); |
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} |
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return $this->target; |
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} |
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} |
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flipboxfactory /
craft-element-lists
