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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Validator\Rule; |
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use Yiisoft\Validator\Exception\UnexpectedRuleException; |
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use Yiisoft\Validator\Formatter; |
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use Yiisoft\Validator\FormatterInterface; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\ValidationContext; |
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/** |
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* Validates if the specified value is less than another value or attribute. |
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* |
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* The value being validated with {@see LessThan::$targetValue} or {@see LessThan::$targetAttribute}, which |
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* is set in the constructor. |
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* |
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* The default validation function is based on string values, which means the values |
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* are compared byte by byte. When validating numbers, make sure to change {@see LessThan::$type} to |
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* {@see LessThan::TYPE_NUMBER} to enable numeric validation. |
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*/ |
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final class LessThanHandler implements RuleHandlerInterface |
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{ |
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private FormatterInterface $formatter; |
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public function __construct(?FormatterInterface $formatter = null) |
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{ |
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$this->formatter = $formatter ?? new Formatter(); |
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} |
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public function validate(mixed $value, object $rule, ?ValidationContext $context = null): Result |
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{ |
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if (!$rule instanceof LessThan) { |
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throw new UnexpectedRuleException(LessThan::class, $rule); |
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} |
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$result = new Result(); |
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$targetValue = $rule->getTargetValue() ?? $context?->getDataSet()?->getAttributeValue($rule->getTargetAttribute()); |
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if (!$this->isLessThan($value, $targetValue, $rule->getType())) { |
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$formattedMessage = $this->formatter->format( |
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$rule->getMessage(), |
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[ |
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'attribute' => $context?->getAttribute(), |
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'targetAttribute' => $rule->getTargetValue(), |
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'targetValue' => $rule->getTargetValue(), |
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'targetValueOrAttribute' => $rule->getTargetValue() ?? $rule->getTargetAttribute(), |
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'value' => $value, |
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] |
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); |
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$result->addError($formattedMessage); |
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} |
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return $result; |
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} |
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private function isLessThan(mixed $value, mixed $targetValue, string $type): bool |
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{ |
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if ($type === LessThan::TYPE_NUMBER) { |
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$value = (float)$value; |
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$targetValue = (float)$targetValue; |
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} else { |
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$value = (string)$value; |
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$targetValue = (string)$targetValue; |
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} |
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return $value < $targetValue; |
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} |
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} |
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yiisoft /
validator
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