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<?php |
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/** |
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* Linna Filter |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2018, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types = 1); |
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namespace Linna\Filter\Rules; |
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use UnexpectedValueException; |
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/** |
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* Check if a number is included or not on interval using ><, <>, >=<, <=> operators. |
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*/ |
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class NumberInterval extends AbstractNumber implements RuleSanitizeInterface, RuleValidateInterface |
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{ |
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/** |
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* @var array Rule properties |
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*/ |
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public static $config = [ |
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'class' => 'NumberInterval', |
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'full_class' => __CLASS__, |
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'alias' => ['numberinterval', 'numint', 'ni'], |
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'args_count' => 3, |
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'args_type' => ['string', 'number', 'number'], |
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'has_validate' => true, |
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//'has_sanitize' => true |
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]; |
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/** |
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* @var string Error message |
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*/ |
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private $message = ''; |
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/** |
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* Validate. |
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* |
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* @return bool |
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*/ |
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public function validate(): bool |
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{ |
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$args = func_get_args(); |
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return $this->concreteValidate($args[0], $args[1], $args[2], $args[3]); |
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} |
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/** |
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* Concrete validate. |
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* |
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* @param int|float $received |
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* @param string $operator |
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* @param int|float $min |
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* @param int|float $max |
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* |
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* @return bool |
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*/ |
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private function concreteValidate($received, string $operator, $min, $max): bool |
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{ |
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if (!is_numeric($received)) { |
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return true; |
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} |
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if (!is_numeric($min)) { |
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return true; |
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} |
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if (!is_numeric($max)) { |
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1 |
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return true; |
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} |
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settype($received, 'float'); |
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settype($min, 'float'); |
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settype($max, 'float'); |
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if ($this->switchOperator($operator, $received, $min, $max)) { |
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return false; |
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} |
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$this->message = "Received number is not {$min} {$operator} {$max}"; |
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return true; |
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} |
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/** |
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* Perform correct operation from passed operator. |
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* |
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* @param string $operator |
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* @param int|float $numberReceived |
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* @param int|float $min |
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* @param int|float $max |
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* |
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* @return bool |
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* |
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* @throws UnexpectedValueException if unknown operator is provided. |
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*/ |
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private function switchOperator(string $operator, &$numberReceived, &$min, &$max): bool |
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{ |
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switch ($operator) { |
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case '><': //inside interval exclusive |
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return $numberReceived > $min && $numberReceived < $max; |
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case '>=<': //inside interval inclusive |
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return $numberReceived >= $min && $numberReceived <= $max; |
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case '<>': //outside interval exclusive |
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return $numberReceived < $min || $numberReceived > $max; |
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case '<=>': //outside interval inclusive |
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return $numberReceived <= $min || $numberReceived >= $max;; |
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default: |
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1 |
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throw new UnexpectedValueException("Unknown comparson operator ({$operator}). Permitted ><, <>, >=<, <=>"); |
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} |
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} |
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/** |
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* Return error message. |
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* |
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* @return string Error message |
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*/ |
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8 |
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public function getMessage(): string |
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{ |
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return $this->message; |
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} |
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} |
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linna /
filter
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