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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\Backend\Model\Widget\Grid;
/**
* @api
* @since 100.0.2
*/
class SubTotals extends \Magento\Backend\Model\Widget\Grid\AbstractTotals
{
/**
* Count collection column sum based on column index
*
* @param string $index
* @param \Magento\Framework\Data\Collection $collection
* @return float|int
*/
protected function _countSum($index, $collection)
{
$sum = 0;
foreach ($collection as $item) {
$sum += $item[$index];
}
return $sum;
}
/**
* Count collection column average based on column index
*
* @param string $index
* @param \Magento\Framework\Data\Collection $collection
* @return float|int
*/
protected function _countAverage($index, $collection)
{
$itemsCount = count($collection);
return $itemsCount ? $this->_countSum($index, $collection) / $itemsCount : $itemsCount;
}
}