BetweenValidator.php

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<?php
namespace TYPO3\CMS\Form\Validation;

class BetweenValidator extends \TYPO3\CMS\Form\Validation\AbstractValidator implements \TYPO3\CMS\Form\Validation\ValidatorInterface {

    const LOCALISATION_OBJECT_NAME = 'tx_form_system_validate_between';

    protected $minimum;

    protected $maximum;

    protected $inclusive;

    public function __construct($arguments) {
        $this->setMinimum($arguments['minimum'])->setMaximum($arguments['maximum'])->setInclusive($arguments['inclusive']);
        parent::__construct($arguments);
    }

    public function isValid() {
        if ($this->requestHandler->has($this->fieldName)) {
            $value = $this->requestHandler->getByMethod($this->fieldName);
            if ($this->inclusive) {
                if ($value < $this->minimum || $value > $this->maximum) {
                    return FALSE;
                }
            } else {
                if ($value <= $this->minimum || $value >= $this->maximum) {
                    return FALSE;
                }
            }
        }
        return TRUE;
    }

    public function setMinimum($minimum) {
        $this->minimum = $minimum;
        return $this;
    }

    public function setMaximum($maximum) {
        $this->maximum = $maximum;
        return $this;
    }

    public function setInclusive($inclusive) {
        if ($inclusive === NULL) {
            $this->inclusive = FALSE;
        } else {
            $this->inclusive = (bool) $inclusive;
        }
        return $this;
    }

    protected function getLocalLanguageLabel($type) {
        $label = static::LOCALISATION_OBJECT_NAME . '.' . $type;
        $messages[] = $this->localizationHandler->getLocalLanguageLabel($label);
        if ($this->inclusive) {
            $messages[] = $this->localizationHandler->getLocalLanguageLabel($label . '2');
        }
        $message = implode(', ', $messages);
        return $message;
    }

    protected function substituteValues($message) {
        return str_replace(
            array('%minimum', '%maximum'),
            array($this->minimum, $this->maximum),
            $message
        );
    }

}