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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 Stringable; |
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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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use function gettype; |
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use function in_array; |
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/** |
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* Compares the specified value with another value. |
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* |
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* @see AbstractCompare |
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* @see Equal |
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* @see GreaterThan |
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* @see GreaterThanOrEqual |
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* @see LessThan |
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* @see LessThanOrEqual |
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* @see Compare |
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* @see NotEqual |
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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 $context): Result |
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{ |
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if (!$rule instanceof AbstractCompare) { |
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throw new UnexpectedRuleException(AbstractCompare::class, $rule); |
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} |
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4 |
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$result = new Result(); |
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if (!$this->isInputCorrect($rule, $value)) { |
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return $result->addError($rule->getIncorrectInputMessage(), [ |
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'attribute' => $context->getTranslatedAttribute(), |
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'type' => get_debug_type($value), |
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]); |
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} |
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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 (!$this->isInputCorrect($rule, $targetValue)) { |
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return $result->addError($rule->getIncorrectDataSetTypeMessage(), [ |
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'type' => get_debug_type($targetValue), |
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]); |
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} |
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} |
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if ($this->compareValues($rule->getOperator(), $rule->getType(), $value, $targetValue)) { |
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return new Result(); |
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} |
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if ($rule->getType() === CompareType::ORIGINAL) { |
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return (new Result())->addError($rule->getMessage(), [ |
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'attribute' => $context->getTranslatedAttribute(), |
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]); |
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} |
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return (new Result())->addError($rule->getMessage(), [ |
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'attribute' => $context->getTranslatedAttribute(), |
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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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'value' => $value, |
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]); |
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} |
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private function isInputCorrect(AbstractCompare $rule, mixed $value) |
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{ |
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if ($rule->getType() !== CompareType::ORIGINAL) { |
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return $value === null || is_scalar($value) || $value instanceof Stringable; |
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} |
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2 |
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return true; |
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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. One of `==`, `===`, `!=`, `!==`, `>`, `>=`, `<`, `<=`. |
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* @param string $type The type of the values being compared. |
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* @psalm-param CompareType::ORIGINAL | CompareType::STRING | CompareType::NUMBER $type |
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* |
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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 result of 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 $targetValue): bool |
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{ |
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if (!in_array($operator, ['==', '===', '!=', '!=='])) { |
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if ($type === CompareType::STRING) { |
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$value = (string) $value; |
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$targetValue = (string) $targetValue; |
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} elseif ($type === CompareType::NUMBER) { |
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$value = (float) $value; |
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$targetValue = (float) $targetValue; |
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} |
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} |
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return match ($operator) { |
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'==' => $this->checkValuesAreEqual($type, $value, $targetValue), |
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'===' => $this->checkValuesAreEqual($type, $value, $targetValue, strict: true), |
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'!=' => !$this->checkValuesAreEqual($type, $value, $targetValue), |
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'!==' => !$this->checkValuesAreEqual($type, $value, $targetValue, strict: true), |
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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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private function checkValuesAreEqual(string $type, mixed $value, mixed $targetValue, bool $strict = false): bool |
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{ |
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if ($strict && gettype($value) !== gettype($targetValue)) { |
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return false; |
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} |
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return match ($type) { |
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CompareType::ORIGINAL => $value === $targetValue, |
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CompareType::STRING => (string) $value === (string) $targetValue, |
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CompareType::NUMBER => $this->checkFloatsAreEqual((float) (string) $value, (float) (string) $targetValue), |
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}; |
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} |
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private function checkFloatsAreEqual(float $value, float $targetValue): bool |
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{ |
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return abs($value - $targetValue) < PHP_FLOAT_EPSILON; |
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} |
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} |
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yiisoft /
validator
