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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Eav\Model\Entity\Attribute\Backend;
/**
* Backend model for attribute with multiple values
*
* @api
* @since 100.0.2
*/
class ArrayBackend extends \Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend
{
/**
* Prepare data for save
*
* @param \Magento\Framework\DataObject $object
* @return \Magento\Eav\Model\Entity\Attribute\Backend\AbstractBackend
*/
public function beforeSave($object)
{
$attributeCode = $this->getAttribute()->getAttributeCode();
$data = $object->getData($attributeCode);
if (is_array($data)) {
$data = array_filter($data, function ($value) {
return $value === '0' || !empty($value);
});
$object->setData($attributeCode, implode(',', $data));
}
return parent::beforeSave($object);
}
/**
* Implode data for validation
*
* @param \Magento\Catalog\Model\Product $object
* @return bool
*/
public function validate($object)
{
$attributeCode = $this->getAttribute()->getAttributeCode();
if ($object->hasData($attributeCode)) {
$data = $object->getData($attributeCode);
if (is_array($data)) {
$object->setData($attributeCode, $this->prepare($data));
} elseif (is_string($data)) {
$object->setData($attributeCode, $this->prepare(explode(',', $data)));
} elseif (empty($data)) {
$object->setData($attributeCode, null);
}
}
return parent::validate($object);
}
/**
* Prepare attribute values
*
* @param array $data
* @return string
*/
private function prepare(array $data): string
{
return implode(',', array_filter(array_unique($data), 'is_numeric'));
}
}