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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Validator\DataSet; |
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use Yiisoft\Validator\DataWrapperInterface; |
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/** |
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* A data set used for a single value of any (mixed) data type. Does not support attributes. |
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* |
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* Examples of usage: |
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* |
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* ```php |
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* $dataSet = new SingleValueDataSet(5); |
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* $dataSet = new SingleValueDataSet(2.5); |
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* $dataSet = new SingleValueDataSet('text'); |
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* $dataSet = new SingleValueDataSet(null); |
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* $dataSet = new SingleValueDataSet(false); |
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* $dataSet = new SingleValueDataSet([]); |
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* $dataSet = new SingleValueDataSet(new \stdClass()); |
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* ``` |
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* |
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* When using validator, there is no need to wrap data manually. Such types be automatically wrapped with |
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* {@see SingleValueDataSet} by {@see DataSetNormalizer} during validation. |
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* |
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* For arrays and objects {@see ArrayDataSet} and {@see ObjectDataSet} can be used accordingly. |
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*/ |
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final class SingleValueDataSet implements DataWrapperInterface |
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{ |
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public function __construct( |
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/** |
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* @var mixed Single value of any (mixed) data type. |
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*/ |
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private mixed $value, |
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) { |
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} |
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/** |
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* Returns an attribute value by its name. {@see SingleValueDataSet} does not support attributes so `null` is always |
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* returned regardless of the attribute name. |
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* |
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* @param string $attribute Attribute name. |
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* |
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* @return mixed `null` value indicating that attributes are not supported. |
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*/ |
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public function getAttributeValue(string $attribute): mixed |
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{ |
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return null; |
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} |
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/** |
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* Returns the validated data as array. |
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*/ |
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public function getData(): ?array |
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{ |
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return null; |
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} |
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public function getSource(): mixed |
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{ |
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return $this->value; |
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} |
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/** |
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* Whether this data set has the attribute with a given name. |
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* |
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* @param string $attribute Attribute name. |
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* |
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* @return bool `false` value indicating that attributes are not supported. |
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*/ |
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public function hasAttribute(string $attribute): bool |
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{ |
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return false; |
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} |
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} |
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