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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Validator\Rule\CompareTo; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\Rule\RuleHandlerInterface; |
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use Yiisoft\Validator\ValidationContext; |
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use Yiisoft\Validator\ValidatorInterface; |
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use Yiisoft\Validator\Exception\UnexpectedRuleException; |
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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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/** |
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* Constant for specifying the comparison as string values. |
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* No conversion will be done before comparison. |
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* |
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* @see $type |
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*/ |
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public const TYPE_STRING = 'string'; |
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/** |
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* Constant for specifying the comparison as numeric values. |
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* String values will be converted into numbers before comparison. |
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* |
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* @see $type |
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*/ |
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public const TYPE_NUMBER = 'number'; |
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public function validate(mixed $value, object $rule, ValidatorInterface $validator, ?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->operator, $rule->type, $value, $rule->compareValue)) { |
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$result->addError($rule->getMessage(), ['value' => $rule->compareValue]); |
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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, $value, $compareValue): bool |
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{ |
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if ($type === self::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) $compareValue; |
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} |
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switch ($operator) { |
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case '==': |
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return $value == $compareValue; |
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case '===': |
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return $value === $compareValue; |
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case '!=': |
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return $value != $compareValue; |
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case '!==': |
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return $value !== $compareValue; |
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case '>': |
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return $value > $compareValue; |
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case '>=': |
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return $value >= $compareValue; |
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case '<': |
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return $value < $compareValue; |
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3 |
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case '<=': |
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return $value <= $compareValue; |
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default: |
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return false; |
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} |
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} |
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} |
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yiisoft /
validator
