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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\HasValidationErrorMessage; |
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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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use function is_string; |
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/** |
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* StringValidator validates that the attribute value is of certain length. |
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* |
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* Note, this validator should only be used with string-typed attributes. |
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*/ |
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class HasLength extends Rule |
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{ |
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use HasValidationErrorMessage; |
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/** |
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* @var int|null maximum length. null means no maximum length limit. |
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* |
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* @see tooLongMessage for the customized message for a too long string. |
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*/ |
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private ?int $max = null; |
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/** |
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* @var int|null minimum length. null means no minimum length limit. |
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* |
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* @see tooShortMessage for the customized message for a too short string. |
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*/ |
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private ?int $min = null; |
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/** |
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* @var string user-defined error message used when the value is not a string. |
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*/ |
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private string $message = 'This value must be a string.'; |
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/** |
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* @var string user-defined error message used when the length of the value is smaller than {@see $min}. |
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*/ |
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private string $tooShortMessage = 'This value should contain at least {min, number} {min, plural, one{character} other{characters}}.'; |
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/** |
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* @var string user-defined error message used when the length of the value is greater than {@see $max}. |
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*/ |
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private string $tooLongMessage = 'This value should contain at most {max, number} {max, plural, one{character} other{characters}}.'; |
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/** |
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* @var string the encoding of the string value to be validated (e.g. 'UTF-8'). |
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* If this property is not set, application wide encoding will be used. |
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*/ |
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protected string $encoding = 'UTF-8'; |
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public static function rule(): self |
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{ |
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return new self(); |
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} |
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protected function validateValue($value, ValidationContext $context = null): Result |
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{ |
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$result = new Result(); |
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if (!is_string($value)) { |
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$result->addError($this->formatMessage($this->message)); |
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return $result; |
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} |
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$length = mb_strlen($value, $this->encoding); |
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if ($this->min !== null && $length < $this->min) { |
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$result->addError($this->formatMessage($this->tooShortMessage, ['min' => $this->min])); |
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} |
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if ($this->max !== null && $length > $this->max) { |
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$result->addError($this->formatMessage($this->tooLongMessage, ['max' => $this->max])); |
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} |
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return $result; |
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} |
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public function min(int $value): self |
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{ |
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$new = clone $this; |
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$new->min = $value; |
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return $new; |
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} |
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public function max(int $value): self |
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{ |
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$new = clone $this; |
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$new->max = $value; |
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return $new; |
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} |
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public function encoding(string $encoding): self |
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{ |
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$new = clone $this; |
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$new->encoding = $encoding; |
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return $new; |
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} |
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public function tooShortMessage(string $message): self |
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{ |
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$new = clone $this; |
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$new->tooShortMessage = $message; |
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return $new; |
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} |
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public function tooLongMessage(string $message): self |
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{ |
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$new = clone $this; |
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$new->tooLongMessage = $message; |
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return $new; |
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} |
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public function getOptions(): array |
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{ |
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return array_merge( |
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parent::getOptions(), |
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[ |
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'message' => $this->formatMessage($this->message), |
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'min' => $this->min, |
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'tooShortMessage' => $this->formatMessage($this->tooShortMessage, ['min' => $this->min]), |
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'max' => $this->max, |
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'tooLongMessage' => $this->formatMessage($this->tooLongMessage, ['max' => $this->max]), |
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'encoding' => $this->encoding, |
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], |
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); |
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} |
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} |
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yiisoft /
validator
