shlink/module/Core/migrations/Version20200110182849.php

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<?php
declare(strict_types=1);
namespace ShlinkMigrations;
use Doctrine\DBAL\Exception;
use Doctrine\DBAL\Platforms\MySQLPlatform;
use Doctrine\DBAL\Schema\Schema;
use Doctrine\Migrations\AbstractMigration;
final class Version20200110182849 extends AbstractMigration
{
private const DEFAULT_EMPTY_VALUE = '';
private const COLUMN_DEFAULTS_MAP = [
'visits' => [
'referer',
'user_agent',
],
'visit_locations' => [
'timezone',
'country_code',
'country_name',
'region_name',
'city_name',
],
];
public function up(Schema $schema): void
{
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foreach (self::COLUMN_DEFAULTS_MAP as $tableName => $columns) {
foreach ($columns as $columnName) {
$this->setDefaultValueForColumnInTable($tableName, $columnName);
}
}
}
/**
* @throws Exception
*/
public function setDefaultValueForColumnInTable(string $tableName, string $columnName): void
{
$qb = $this->connection->createQueryBuilder();
$qb->update($tableName)
->set($columnName, ':emptyValue')
->setParameter('emptyValue', self::DEFAULT_EMPTY_VALUE)
->where($qb->expr()->isNull($columnName))
->executeStatement();
}
public function down(Schema $schema): void
{
// No need (and no way) to undo this migration
}
public function isTransactional(): bool
{
return ! ($this->connection->getDatabasePlatform() instanceof MySQLPlatform);
}
}