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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 Attribute; |
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use InvalidArgumentException; |
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use RuntimeException; |
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use Yiisoft\Validator\FormatterInterface; |
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use Yiisoft\Validator\Result; |
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use Yiisoft\Validator\Rule; |
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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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#[Attribute(Attribute::TARGET_PROPERTY)] |
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final class CompareTo extends Rule |
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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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private array $validOperators = [ |
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'==' => 1, |
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'===' => 1, |
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'!=' => 1, |
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'!==' => 1, |
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'>' => 1, |
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'>=' => 1, |
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'<' => 1, |
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'<=' => 1, |
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]; |
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public function __construct( |
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/** |
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* @var mixed the constant value to be compared with. |
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*/ |
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private $compareValue, |
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/** |
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* @var string|null user-defined error message |
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*/ |
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private ?string $message = null, |
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/** |
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* @var string the type of the values being compared. |
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*/ |
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private string $type = self::TYPE_STRING, |
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/** |
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* @var string the operator for comparison. The following operators are supported: |
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* |
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* - `==`: check if two values are equal. The comparison is done is non-strict mode. |
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* - `===`: check if two values are equal. The comparison is done is strict mode. |
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* - `!=`: check if two values are NOT equal. The comparison is done is non-strict mode. |
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* - `!==`: check if two values are NOT equal. The comparison is done is strict mode. |
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* - `>`: check if value being validated is greater than the value being compared with. |
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* - `>=`: check if value being validated is greater than or equal to the value being compared with. |
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* - `<`: check if value being validated is less than the value being compared with. |
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* - `<=`: check if value being validated is less than or equal to the value being compared with. |
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* |
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* When you want to compare numbers, make sure to also chabge @see CompareTo::$type} to |
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* {@see CompareTo::TYPE_NUMBER}. |
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*/ |
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private string $operator = '==', |
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?FormatterInterface $formatter = null, |
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bool $skipOnEmpty = false, |
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bool $skipOnError = false, |
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$when = null |
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) { |
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parent::__construct(formatter: $formatter, skipOnEmpty: $skipOnEmpty, skipOnError: $skipOnError, when: $when); |
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if (!isset($this->validOperators[$operator])) { |
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throw new InvalidArgumentException("Operator \"$operator\" is not supported."); |
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} |
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} |
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private function getMessage(): string |
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{ |
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if ($this->message !== null) { |
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return $this->message; |
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} |
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switch ($this->operator) { |
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case '==': |
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case '===': |
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return 'Value must be equal to "{value}".'; |
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case '!=': |
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case '!==': |
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return 'Value must not be equal to "{value}".'; |
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case '>': |
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return 'Value must be greater than "{value}".'; |
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case '>=': |
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return 'Value must be greater than or equal to "{value}".'; |
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case '<': |
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return 'Value must be less than "{value}".'; |
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case '<=': |
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return 'Value must be less than or equal to "{value}".'; |
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default: |
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throw new RuntimeException("Unknown operator: {$this->operator}"); |
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} |
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} |
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protected function validateValue($value, ?ValidationContext $context = null): Result |
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{ |
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$result = new Result(); |
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if (!$this->compareValues($this->operator, $this->type, $value, $this->compareValue)) { |
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$message = $this->formatMessage($this->getMessage(), ['value' => $this->compareValue]); |
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$result->addError($message); |
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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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protected 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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public function getOptions(): array |
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{ |
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return array_merge(parent::getOptions(), [ |
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'compareValue' => $this->compareValue, |
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'message' => $this->formatMessage($this->getMessage(), ['value' => $this->compareValue]), |
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'type' => $this->type, |
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'operator' => $this->operator, |
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]); |
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} |
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} |
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yiisoft /
validator
