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<?php
/**
* Copyright © Magento, Inc. All rights reserved.
* See COPYING.txt for license details.
*/
/**
* Tax Calculation Resource Model
*/
namespace Magento\Tax\Model\ResourceModel;
class Calculation extends \Magento\Framework\Model\ResourceModel\Db\AbstractDb
{
/**
* Store ISO 3166-1 alpha-2 USA country code
*/
public const USA_COUNTRY_CODE = 'US';
public const PORTUGAL_COUNTRY_CODE = 'PT';
/**
* @var array
*/
protected $_ratesCache = [];
/**
* @var \Magento\Tax\Helper\Data
*/
protected $_taxData;
/**
* @var \Magento\Store\Model\StoreManagerInterface
*/
protected $_storeManager;
/**
* @param \Magento\Framework\Model\ResourceModel\Db\Context $context
* @param \Magento\Tax\Helper\Data $taxData
* @param \Magento\Store\Model\StoreManagerInterface $storeManager
* @param string $connectionName
*/
public function __construct(
\Magento\Framework\Model\ResourceModel\Db\Context $context,
\Magento\Tax\Helper\Data $taxData,
\Magento\Store\Model\StoreManagerInterface $storeManager,
$connectionName = null
) {
$this->_taxData = $taxData;
$this->_storeManager = $storeManager;
parent::__construct($context, $connectionName);
}
/**
* Resource initialization
*
* @return void
*/
protected function _construct()
{
$this->_setMainTable('tax_calculation');
}
/**
* Delete calculation settings by rule id
*
* @param int $ruleId
* @return $this
*/
public function deleteByRuleId($ruleId)
{
$conn = $this->getConnection();
$where = $conn->quoteInto('tax_calculation_rule_id = ?', (int)$ruleId);
$conn->delete($this->getMainTable(), $where);
return $this;
}
/**
* Retrieve distinct calculation
*
* @param string $field
* @param int $ruleId
* @return array
*/
public function getCalculationsById($field, $ruleId)
{
$select = $this->getConnection()->select();
$select->from($this->getMainTable(), $field)->where('tax_calculation_rule_id = ?', (int)$ruleId);
return $this->getConnection()->fetchCol($select);
}
/**
* Get tax rate information: calculation process data and tax rate
*
* @param \Magento\Framework\DataObject $request
* @return array
*/
public function getRateInfo($request)
{
$rates = $this->_getRates($request);
return [
'process' => $this->getCalculationProcess($request, $rates),
'value' => $this->_calculateRate($rates)
];
}
/**
* Get tax rate for specific tax rate request
*
* @param \Magento\Framework\DataObject $request
* @return int
*/
public function getRate($request)
{
return $this->_calculateRate($this->_getRates($request));
}
/**
* Retrieve Calculation Process
*
* @param \Magento\Framework\DataObject $request
* @param array|null $rates
* @return array
* @SuppressWarnings(PHPMD.CyclomaticComplexity)
* @SuppressWarnings(PHPMD.NPathComplexity)
*/
public function getCalculationProcess($request, $rates = null)
{
if ($rates === null) {
$rates = $this->_getRates($request);
}
$result = [];
$row = [];
$ids = [];
$currentRate = 0;
$totalPercent = 0;
$countedRates = count($rates);
for ($i = 0; $i < $countedRates; $i++) {
$rate = $rates[$i];
$value = (isset($rate['value']) ? $rate['value'] : $rate['percent']) * 1;
$oneRate = [
'code' => $rate['code'],
'title' => $rate['title'],
'percent' => $value,
'position' => $rate['position'],
'priority' => $rate['priority']
];
if (isset($rate['tax_calculation_rule_id'])) {
$oneRate['rule_id'] = $rate['tax_calculation_rule_id'];
}
if (isset($rate['hidden'])) {
$row['hidden'] = $rate['hidden'];
}
if (isset($rate['amount'])) {
$row['amount'] = $rate['amount'];
}
if (isset($rate['base_amount'])) {
$row['base_amount'] = $rate['base_amount'];
}
if (isset($rate['base_real_amount'])) {
$row['base_real_amount'] = $rate['base_real_amount'];
}
$row['rates'][] = $oneRate;
$ruleId = null;
if (isset($rates[$i + 1]['tax_calculation_rule_id'])) {
$ruleId = $rate['tax_calculation_rule_id'];
}
$priority = $rate['priority'];
$ids[] = $rate['code'];
if (isset($rates[$i + 1]['tax_calculation_rule_id'])) {
while (isset($rates[$i + 1]) && $rates[$i + 1]['tax_calculation_rule_id'] == $ruleId) {
$i++;
}
}
$currentRate += $value;
if (!isset(
$rates[$i + 1]
) || $rates[$i + 1]['priority'] != $priority || isset(
$rates[$i + 1]['process']
) && $rates[$i + 1]['process'] != $rate['process']
) {
if (!empty($rates[$i]['calculate_subtotal'])) {
$row['percent'] = $currentRate;
$totalPercent += $currentRate;
} else {
$row['percent'] = $this->_collectPercent($totalPercent, $currentRate);
$totalPercent += $row['percent'];
}
$row['id'] = implode('', $ids);
$result[] = $row;
$row = [];
$ids = [];
$currentRate = 0;
}
}
return $result;
}
/**
* Return combined percent value
*
* @param float|int $percent
* @param float|int $rate
* @return float
*/
protected function _collectPercent($percent, $rate)
{
return (100 + $percent) * ($rate / 100);
}
/**
* Create search templates for postcode
*
* @param string $postcode
* @param string|null $exactPostcode
* @return string[]
*/
protected function _createSearchPostCodeTemplates($postcode, $exactPostcode = null)
{
// as needed, reduce the postcode to the correct length
$len = $this->_taxData->getPostCodeSubStringLength();
$postcode = $postcode !== null ? substr($postcode, 0, $len) : '';
// begin creating the search template array
$strArr = [$postcode, $postcode . '*'];
// if supplied, use the exact postcode as the basis for the search templates
if ($exactPostcode) {
$postcode = substr($exactPostcode, 0, $len);
$strArr[] = $postcode;
}
// finish building out the search template array
$strlen = strlen($postcode);
for ($i = 1; $i < $strlen; $i++) {
$strArr[] = sprintf('%s*', substr($postcode, 0, -$i));
}
return $strArr;
}
/**
* Returns tax rates for request - either pereforms SELECT from DB, or returns already cached result.
*
* Notice that productClassId due to optimization can be array of ids.
*
* @param \Magento\Framework\DataObject $request
* @return array
* @SuppressWarnings(PHPMD.CyclomaticComplexity)
* @SuppressWarnings(PHPMD.NPathComplexity)
* @SuppressWarnings(PHPMD.ExcessiveMethodLength)
*/
protected function _getRates($request)
{
// Extract params that influence our SELECT statement and use them to create cache key
$storeId = $this->_storeManager->getStore($request->getStore())->getId();
$customerClassId = $request->getCustomerClassId();
$countryId = $request->getCountryId();
$regionId = $request->getRegionId();
$postcode = $request->getPostcode();
// Process productClassId as it can be array or usual value. Form best key for cache.
$productClassId = $request->getProductClassId();
$ids = is_array($productClassId) ? $productClassId : [$productClassId];
foreach ($ids as $key => $val) {
$ids[$key] = (int)$val; // Make it integer for equal cache keys even in case of null/false/0 values
}
$ids = array_unique($ids);
sort($ids);
$productClassKey = implode(',', $ids);
// Form cache key and either get data from cache or from DB
$cacheKey = implode(
'|',
[$storeId, $customerClassId, $productClassKey, $countryId, $regionId, $postcode]
);
if (!isset($this->_ratesCache[$cacheKey])) {
// Make SELECT and get data
$select = $this->getConnection()->select();
$select->from(
['main_table' => $this->getMainTable()],
[
'tax_calculation_rate_id',
'tax_calculation_rule_id',
'customer_tax_class_id',
'product_tax_class_id'
]
)->where(
'customer_tax_class_id = ?',
(int)$customerClassId
);
if ($productClassId) {
$select->where('product_tax_class_id IN (?)', $productClassId);
}
$ifnullTitleValue = $this->getConnection()->getCheckSql(
'title_table.value IS NULL',
'rate.code',
'title_table.value'
);
$ruleTableAliasName = $this->getConnection()->quoteIdentifier('rule.tax_calculation_rule_id');
$select->join(
['rule' => $this->getTable('tax_calculation_rule')],
$ruleTableAliasName . ' = main_table.tax_calculation_rule_id',
['rule.priority', 'rule.position', 'rule.calculate_subtotal']
)->join(
['rate' => $this->getTable('tax_calculation_rate')],
'rate.tax_calculation_rate_id = main_table.tax_calculation_rate_id',
[
'value' => 'rate.rate',
'rate.tax_country_id',
'rate.tax_region_id',
'rate.tax_postcode',
'rate.tax_calculation_rate_id',
'rate.code'
]
)->joinLeft(
['title_table' => $this->getTable('tax_calculation_rate_title')],
"rate.tax_calculation_rate_id = title_table.tax_calculation_rate_id " .
"AND title_table.store_id = '{$storeId}'",
['title' => $ifnullTitleValue]
)->where(
'rate.tax_country_id = ?',
$countryId
)->where(
"rate.tax_region_id IN(?)",
[0, (int)$regionId]
);
$postcodeIsNumeric = is_numeric($postcode);
$postcodeIsRange = false;
$originalPostcode = null;
$zipFrom = null;
$zipTo = null;
if (is_string($postcode) && preg_match('/^(.+)-(.+)$/', $postcode, $matches)) {
if ((self::USA_COUNTRY_CODE === $countryId && is_numeric($matches[2]) && 4 === strlen($matches[2])) ||
(self::PORTUGAL_COUNTRY_CODE === $countryId && is_numeric($matches[2]) && 3 === strlen($matches[2]))
) {
$postcodeIsNumeric = true;
$originalPostcode = $postcode;
$postcode = $matches[1];
} else {
$postcodeIsRange = true;
$zipFrom = $matches[1];
$zipTo = $matches[2];
}
}
$selectClone = null;
if ($postcodeIsNumeric || $postcodeIsRange) {
$selectClone = clone $select;
$selectClone->where('rate.zip_is_range IS NOT NULL');
}
$select->where('rate.zip_is_range IS NULL');
if ($postcode != '*' || $postcodeIsRange) {
$select->where(
"rate.tax_postcode IS NULL OR rate.tax_postcode IN('*', '', ?)",
$postcodeIsRange ? $postcode : $this->_createSearchPostCodeTemplates($postcode, $originalPostcode)
);
if ($postcodeIsNumeric) {
$selectClone->where('? BETWEEN rate.zip_from AND rate.zip_to', $postcode);
} elseif ($postcodeIsRange) {
$selectClone->where('rate.zip_from >= ?', $zipFrom)
->where('rate.zip_to <= ?', $zipTo);
}
}
/**
* @see ZF-7592 issue http://framework.zend.com/issues/browse/ZF-7592
*/
if ($postcodeIsNumeric || $postcodeIsRange) {
$select = $this->getConnection()->select()->union(
['(' . $select . ')', '(' . $selectClone . ')']
);
}
$select->order(
'priority ' . \Magento\Framework\DB\Select::SQL_ASC
)->order(
'tax_calculation_rule_id ' . \Magento\Framework\DB\Select::SQL_ASC
)->order(
'tax_country_id ' . \Magento\Framework\DB\Select::SQL_DESC
)->order(
'tax_region_id ' . \Magento\Framework\DB\Select::SQL_DESC
)->order(
'tax_postcode ' . \Magento\Framework\DB\Select::SQL_DESC
)->order(
'value ' . \Magento\Framework\DB\Select::SQL_DESC
);
$fetchResult = $this->getConnection()->fetchAll($select);
$filteredRates = [];
if ($fetchResult) {
foreach ($fetchResult as $rate) {
if (!isset($filteredRates[$rate['tax_calculation_rate_id']])) {
$filteredRates[$rate['tax_calculation_rate_id']] = $rate;
}
}
}
$this->_ratesCache[$cacheKey] = array_values($filteredRates);
}
return $this->_ratesCache[$cacheKey];
}
/**
* Calculate rate
*
* @param array $rates
* @return int
*/
protected function _calculateRate($rates)
{
$result = 0;
$currentRate = 0;
$countedRates = count($rates);
for ($i = 0; $i < $countedRates; $i++) {
$rate = $rates[$i];
$rule = $rate['tax_calculation_rule_id'];
$value = $rate['value'];
$priority = $rate['priority'];
while (isset($rates[$i + 1]) && $rates[$i + 1]['tax_calculation_rule_id'] == $rule) {
$i++;
}
$currentRate += $value;
if (!isset($rates[$i + 1]) || $rates[$i + 1]['priority'] != $priority) {
if (!empty($rates[$i]['calculate_subtotal'])) {
$result += $currentRate;
} else {
$result += $this->_collectPercent($result, $currentRate);
}
$currentRate = 0;
}
}
return $result;
}
/**
* Retrieve rate ids
*
* @param \Magento\Framework\DataObject $request
* @return array
*/
public function getRateIds($request)
{
$result = [];
$rates = $this->_getRates($request);
$countedRates = count($rates);
for ($i = 0; $i < $countedRates; $i++) {
$rate = $rates[$i];
$rule = $rate['tax_calculation_rule_id'];
$result[] = $rate['tax_calculation_rate_id'];
while (isset($rates[$i + 1]) && $rates[$i + 1]['tax_calculation_rule_id'] == $rule) {
$i++;
}
}
return $result;
}
}