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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\SalesSequence\Model;
use Magento\Framework\App\ResourceConnection as AppResource;
use Magento\Framework\DB\Sequence\SequenceInterface;
/**
* Class Sequence represents sequence in logic
*
* @api
* @since 100.0.2
*/
class Sequence implements SequenceInterface
{
/**
* Default pattern for Sequence
*/
const DEFAULT_PATTERN = "%s%'.09d%s";
/**
* @var string
*/
private $lastIncrementId;
/**
* @var Meta
*/
private $meta;
/**
* @var false|\Magento\Framework\DB\Adapter\AdapterInterface
*/
private $connection;
/**
* @var string
*/
private $pattern;
/**
* @param Meta $meta
* @param AppResource $resource
* @param string $pattern
*/
public function __construct(
Meta $meta,
AppResource $resource,
$pattern = self::DEFAULT_PATTERN
) {
$this->meta = $meta;
$this->connection = $resource->getConnection('sales');
$this->pattern = $pattern;
}
/**
* Retrieve current value
*
* @return string
*/
public function getCurrentValue()
{
if (!isset($this->lastIncrementId)) {
return null;
}
return sprintf(
$this->pattern,
$this->meta->getActiveProfile()->getPrefix(),
$this->calculateCurrentValue(),
$this->meta->getActiveProfile()->getSuffix()
);
}
/**
* Retrieve next value
*
* @return string
*/
public function getNextValue()
{
$this->connection->insert($this->meta->getSequenceTable(), []);
$this->lastIncrementId = $this->connection->lastInsertId($this->meta->getSequenceTable());
return $this->getCurrentValue();
}
/**
* Calculate current value depends on start value
*
* @return string
*/
private function calculateCurrentValue()
{
return ($this->lastIncrementId - $this->meta->getActiveProfile()->getStartValue())
* $this->meta->getActiveProfile()->getStep() + $this->meta->getActiveProfile()->getStartValue();
}
}