Subversion-Projekte lars-tiefland.laravel_shop

<?php

namespace Doctrine\DBAL\Platforms\SQLServer;

use Doctrine\DBAL\Platforms\SQLServerPlatform;

use Doctrine\DBAL\Schema\Comparator as BaseComparator;

use Doctrine\DBAL\Schema\Table;

use Doctrine\DBAL\Schema\TableDiff;

/**

 * Compares schemas in the context of SQL Server platform.

 *

 * @link https://docs.microsoft.com/en-us/sql/t-sql/statements/collations?view=sql-server-ver15

 */

class Comparator extends BaseComparator

{

    private string $databaseCollation;

    /** @internal The comparator can be only instantiated by a schema manager. */

    public function __construct(SQLServerPlatform $platform, string $databaseCollation)

    {

        parent::__construct($platform);

        $this->databaseCollation = $databaseCollation;

    }

    public function compareTables(Table $fromTable, Table $toTable): TableDiff

    {

        return parent::compareTables(

            $this->normalizeColumns($fromTable),

            $this->normalizeColumns($toTable),

        );

    }

    /**

     * {@inheritDoc}

     */

    public function diffTable(Table $fromTable, Table $toTable)

    {

        return parent::diffTable(

            $this->normalizeColumns($fromTable),

            $this->normalizeColumns($toTable),

        );

    }

    private function normalizeColumns(Table $table): Table

    {

        $table = clone $table;

        foreach ($table->getColumns() as $column) {

            $options = $column->getPlatformOptions();

            if (! isset($options['collation']) || $options['collation'] !== $this->databaseCollation) {

                continue;

            }

            unset($options['collation']);

            $column->setPlatformOptions($options);

        }

        return $table;

    }

}