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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
/**
* Catalog product weight backend attribute model
*
* @author Magento Core Team <core@magentocommerce.com>
*/
namespace Magento\Catalog\Model\Product\Attribute\Backend;
class Weight extends \Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend
{
/**
* @var \Magento\Framework\Locale\FormatInterface
*/
protected $localeFormat;
/**
* @param \Magento\Framework\Locale\FormatInterface $localeFormat
*/
public function __construct(
\Magento\Framework\Locale\FormatInterface $localeFormat
) {
$this->localeFormat = $localeFormat;
}
/**
* Validate
*
* @param \Magento\Catalog\Model\Product $object
* @throws \Magento\Framework\Exception\LocalizedException
* @return bool
*/
public function validate($object)
{
$attrCode = $this->getAttribute()->getAttributeCode();
$value = $object->getData($attrCode);
if (!$this->isPositiveOrZero($value)) {
throw new \Magento\Framework\Exception\LocalizedException(
__('Please enter a number 0 or greater in this field.')
);
}
return true;
}
/**
* Returns whether the value is greater than, or equal to, zero
*
* @param mixed $value
* @return bool
*/
protected function isPositiveOrZero($value)
{
$value = $this->localeFormat->getNumber($value);
$isNegative = $value < 0;
return !$isNegative;
}
}