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<?php
declare(strict_types=1);
namespace Doctrine\Migrations\Provider;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use Doctrine\DBAL\Schema\AbstractSchemaManager;
use Doctrine\DBAL\Schema\Schema;
/**
* The SchemaDiffProvider class is responsible for providing a Doctrine\DBAL\Schema\Schema instance that
* represents the current state of your database. A clone of this Schema instance is passed to each of your migrations
* so that you can manipulate the Schema object. Your manipulated Schema object is then compared to the original Schema
* object to produce the SQL statements that need to be executed.
*
* @internal
* @see Doctrine\Migrations\Version\DbalExecutor
*/
class DBALSchemaDiffProvider implements SchemaDiffProvider
{
/** @var AbstractPlatform */
private $platform;
/** @var AbstractSchemaManager */
private $schemaManager;
public function __construct(AbstractSchemaManager $schemaManager, AbstractPlatform $platform)
$this->schemaManager = $schemaManager;
$this->platform = $platform;
}
public function createFromSchema() : Schema
return $this->schemaManager->createSchema();
public function createToSchema(Schema $fromSchema) : Schema
return clone $fromSchema;
/** @return string[] */
public function getSqlDiffToMigrate(Schema $fromSchema, Schema $toSchema) : array
return $fromSchema->getMigrateToSql($toSchema, $this->platform);
doctrine /
migrations
