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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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* Compares the specified value with another value. |
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* |
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* The value being compared with a constant {@see CompareTo::$compareValue}, which is set |
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* in the constructor. |
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* |
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* It supports different comparison operators, specified |
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* via the {@see CompareTo::$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 CompareTo::$type} to |
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* {@see CompareTo::TYPE_NUMBER} to enable numeric comparison. |
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*/ |
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final class CompareToHandler 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 CompareTo) { |
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throw new UnexpectedRuleException(CompareTo::class, $rule); |
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} |
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$result = new Result(); |
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if (!$this->compareValues($rule->getOperator(), $rule->getType(), $value, $rule->getCompareValue())) { |
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$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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'compareValue' => $rule->getCompareValue(), |
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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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/** |
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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 $compareValue 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 $compareValue): bool |
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{ |
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if ($type === CompareTo::TYPE_NUMBER) { |
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$value = (float)$value; |
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$compareValue = (float)$compareValue; |
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} else { |
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$value = (string)$value; |
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$compareValue = (string)$compareValue; |
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} |
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return match ($operator) { |
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'==' => $value == $compareValue, |
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'===' => $value === $compareValue, |
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'!=' => $value != $compareValue, |
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'!==' => $value !== $compareValue, |
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'>' => $value > $compareValue, |
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'>=' => $value >= $compareValue, |
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'<' => $value < $compareValue, |
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'<=' => $value <= $compareValue, |
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default => false, |
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}; |
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} |
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} |
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yiisoft /
validator
