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