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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 RuntimeException; |
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use Yiisoft\Validator\Exception\UnexpectedRuleException; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\RuleHandlerInterface; |
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use Yiisoft\Validator\ValidationContext; |
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/** |
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* Compares the specified value with another value. |
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* |
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* The value being compared with {@see Compare::$targetValue} or {@see Compare::$targetAttribute}, which is set |
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* in the constructor. |
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* |
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* It supports different comparison operators, specified |
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* via the {@see Compare::$operator}. |
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* |
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* The default comparison function is based on string values, which means the values |
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* are compared byte by byte. When comparing numbers, make sure to change {@see Compare::$type} to |
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* {@see Compare::TYPE_NUMBER} to enable numeric comparison. |
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*/ |
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final class CompareHandler implements RuleHandlerInterface |
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{ |
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public function validate(mixed $value, object $rule, ValidationContext $context): Result |
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{ |
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72 |
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if (!$rule instanceof Compare) { |
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1 |
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throw new UnexpectedRuleException(Compare::class, $rule); |
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} |
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71 |
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$result = new Result(); |
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$targetAttribute = $rule->getTargetAttribute(); |
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$targetValue = $rule->getTargetValue(); |
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if ($targetValue === null && $targetAttribute !== null) { |
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/** @var mixed $targetValue */ |
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$targetValue = $context->getDataSet()?->getAttributeValue($targetAttribute); |
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if (!is_scalar($targetValue)) { |
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$message = 'The attribute value returned from a custom data set must have a scalar type.'; |
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throw new RuntimeException($message); |
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} |
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} |
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71 |
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if (!$this->compareValues($rule->getOperator(), $rule->getType(), $value, $targetValue)) { |
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$parameters = [ |
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'attribute' => $context->getAttribute(), |
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'targetValue' => $rule->getTargetValue(), |
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'targetAttribute' => $rule->getTargetAttribute(), |
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'targetValueOrAttribute' => $targetValue ?? $targetAttribute, |
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]; |
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is_scalar($value) ? $parameters['value'] = $value : $parameters['valueType'] = get_debug_type($value); |
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$result->addError($rule->getMessage(), $parameters); |
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} |
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return $result; |
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} |
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/** |
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* Compares two values with the specified operator. |
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* |
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* @param string $operator The comparison operator. |
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* @param string $type The type of the values being compared. |
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* @param mixed $value The value being compared. |
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* @param mixed $targetValue Another value being compared. |
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* |
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* @return bool Whether the comparison using the specified operator is true. |
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*/ |
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private function compareValues(string $operator, string $type, mixed $value, mixed $targetValue): bool |
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{ |
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if ($type === Compare::TYPE_NUMBER) { |
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$value = (float)$value; |
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2 |
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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 match ($operator) { |
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'==' => $value == $targetValue, |
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'===' => $value === $targetValue, |
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'!=' => $value != $targetValue, |
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'!==' => $value !== $targetValue, |
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'>' => $value > $targetValue, |
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'>=' => $value >= $targetValue, |
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'<' => $value < $targetValue, |
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'<=' => $value <= $targetValue, |
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}; |
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} |
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} |
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yiisoft /
validator
