forked from Sylius/Sylius
/
Version20161223091334.php
43 lines (37 loc) · 1.73 KB
/
Version20161223091334.php
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<?php
namespace Sylius\Migrations;
use Doctrine\DBAL\Migrations\AbstractMigration;
use Doctrine\DBAL\Schema\Schema;
class Version20161223091334 extends AbstractMigration
{
/**
* @param Schema $schema
*/
public function up(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.');
$this->addSql('ALTER TABLE sylius_product_variant ADD position INT NOT NULL');
$this->addSql('SET @row_number = -1');
$this->addSql('CREATE TEMPORARY TABLE IF NOT EXISTS variants_count
SELECT sylius_product.id AS product_id, COUNT(sylius_product_variant.id) AS `row_number` FROM sylius_product
INNER JOIN sylius_product_variant ON sylius_product.id = sylius_product_variant.product_id
GROUP BY sylius_product.id'
);
$this->addSql('UPDATE sylius_product_variant
JOIN variants_count ON variants_count.product_id = sylius_product_variant.product_id
SET position = CASE
WHEN variants_count.row_number = 1 THEN (@row_number := -1) + 1
WHEN @row_number + 1 < variants_count.row_number then @row_number := @row_number + 1
ELSE @row_number := 0
END'
);
}
/**
* @param Schema $schema
*/
public function down(Schema $schema)
{
$this->abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.');
$this->addSql('ALTER TABLE sylius_product_variant DROP position');
}
}