Link.php

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<?php
namespace Magento\Downloadable\Model\ResourceModel;

use Magento\Catalog\Api\Data\ProductInterface;
use Magento\Framework\App\ObjectManager;
use Magento\Framework\EntityManager\MetadataPool;

class Link extends \Magento\Framework\Model\ResourceModel\Db\AbstractDb
{
    private $metadataPool;

    protected $_catalogData;

    protected $_configuration;

    protected $_currencyFactory;

    protected $_storeManager;

    public function __construct(
        \Magento\Framework\Model\ResourceModel\Db\Context $context,
        \Magento\Catalog\Helper\Data $catalogData,
        \Magento\Framework\App\Config\ScopeConfigInterface $configuration,
        \Magento\Directory\Model\CurrencyFactory $currencyFactory,
        \Magento\Store\Model\StoreManagerInterface $storeManager,
        $connectionName = null
    ) {
        $this->_catalogData = $catalogData;
        $this->_configuration = $configuration;
        $this->_currencyFactory = $currencyFactory;
        $this->_storeManager = $storeManager;
        parent::__construct($context, $connectionName);
    }

    protected function _construct()
    {
        $this->_init('downloadable_link', 'link_id');
    }

    public function saveItemTitleAndPrice($linkObject)
    {
        $connection = $this->getConnection();
        $linkTitleTable = $this->getTable('downloadable_link_title');
        $linkPriceTable = $this->getTable('downloadable_link_price');

        $select = $connection->select()->from(
            $this->getTable('downloadable_link_title')
        )->where(
            'link_id=:link_id AND store_id=:store_id'
        );
        $bind = [':link_id' => $linkObject->getId(), ':store_id' => (int)$linkObject->getStoreId()];

        if ($connection->fetchOne($select, $bind)) {
            $where = ['link_id = ?' => $linkObject->getId(), 'store_id = ?' => (int)$linkObject->getStoreId()];
            if ($linkObject->getUseDefaultTitle()) {
                $connection->delete($linkTitleTable, $where);
            } else {
                $insertData = ['title' => $linkObject->getTitle()];
                $connection->update($linkTitleTable, $insertData, $where);
            }
        } else {
            if (!$linkObject->getUseDefaultTitle()) {
                $connection->insert(
                    $linkTitleTable,
                    [
                        'link_id' => $linkObject->getId(),
                        'store_id' => (int)$linkObject->getStoreId(),
                        'title' => $linkObject->getTitle()
                    ]
                );
            }
        }

        $select = $connection->select()->from($linkPriceTable)->where('link_id=:link_id AND website_id=:website_id');
        $bind = [':link_id' => $linkObject->getId(), ':website_id' => (int)$linkObject->getWebsiteId()];
        if ($connection->fetchOne($select, $bind)) {
            $where = ['link_id = ?' => $linkObject->getId(), 'website_id = ?' => $linkObject->getWebsiteId()];
            if ($linkObject->getUseDefaultPrice()) {
                $connection->delete($linkPriceTable, $where);
            } else {
                $connection->update($linkPriceTable, ['price' => $linkObject->getPrice()], $where);
            }
        } else {
            if (!$linkObject->getUseDefaultPrice()) {
                $dataToInsert[] = [
                    'link_id' => $linkObject->getId(),
                    'website_id' => (int)$linkObject->getWebsiteId(),
                    'price' => (double)$linkObject->getPrice(),
                ];
                if ($linkObject->getOrigData('link_id') != $linkObject->getLinkId()) {
                    $_isNew = true;
                } else {
                    $_isNew = false;
                }
                if ($linkObject->getWebsiteId() == 0 && $_isNew && !$this->_catalogData->isPriceGlobal()) {
                    $websiteIds = $linkObject->getProductWebsiteIds();
                    foreach ($websiteIds as $websiteId) {
                        $baseCurrency = $this->_configuration->getValue(
                            \Magento\Directory\Model\Currency::XML_PATH_CURRENCY_BASE,
                            'default'
                        );
                        $websiteCurrency = $this->_storeManager->getWebsite($websiteId)->getBaseCurrencyCode();
                        if ($websiteCurrency == $baseCurrency) {
                            continue;
                        }
                        $rate = $this->_createCurrency()->load($baseCurrency)->getRate($websiteCurrency);
                        if (!$rate) {
                            $rate = 1;
                        }
                        $newPrice = $linkObject->getPrice() * $rate;
                        $dataToInsert[] = [
                            'link_id' => $linkObject->getId(),
                            'website_id' => (int)$websiteId,
                            'price' => $newPrice,
                        ];
                    }
                }
                $connection->insertMultiple($linkPriceTable, $dataToInsert);
            }
        }
        return $this;
    }

    public function deleteItems($items)
    {
        $connection = $this->getConnection();
        if ($items instanceof \Magento\Downloadable\Model\Link) {
            $where = ['link_id = ?' => $items->getId()];
        } elseif (is_array($items)) {
            $where = ['link_id in (?)' => $items];
        } else {
            $where = ['sample_id = ?' => $items];
        }
        $connection->delete($this->getMainTable(), $where);
        $connection->delete($this->getTable('downloadable_link_title'), $where);
        $connection->delete($this->getTable('downloadable_link_price'), $where);
        return $this;
    }

    public function getSearchableData($productId, $storeId)
    {
        $connection = $this->getConnection();
        $ifNullDefaultTitle = $connection->getIfNullSql('st.title', 's.title');
        $select = $connection->select()->from(
            ['m' => $this->getMainTable()],
            null
        )->join(
            ['s' => $this->getTable('downloadable_link_title')],
            's.link_id=m.link_id AND s.store_id=0',
            []
        )->join(
            ['cpe' => $this->getTable('catalog_product_entity')],
            sprintf(
                'cpe.entity_id = m.product_id',
                $this->getMetadataPool()->getMetadata(ProductInterface::class)->getLinkField()
            ),
            []
        )->joinLeft(
            ['st' => $this->getTable('downloadable_link_title')],
            'st.link_id=m.link_id AND st.store_id=:store_id',
            ['title' => $ifNullDefaultTitle]
        )->where(
            'cpe.entity_id=:product_id'
        );
        $bind = [':store_id' => (int)$storeId, ':product_id' => $productId];

        return $connection->fetchCol($select, $bind);
    }

    protected function _createCurrency()
    {
        return $this->_currencyFactory->create();
    }

    private function getMetadataPool()
    {
        if (!$this->metadataPool) {
            $this->metadataPool = ObjectManager::getInstance()->get(MetadataPool::class);
        }
        return $this->metadataPool;
    }
}