addSql('ALTER TABLE `partition` ADD operative_system_id INT DEFAULT NULL, DROP os_name'); $this->addSql('ALTER TABLE `partition` ADD CONSTRAINT FK_9EB910E4F1E9F66E FOREIGN KEY (operative_system_id) REFERENCES operative_system (id)'); $this->addSql('CREATE INDEX IDX_9EB910E4F1E9F66E ON `partition` (operative_system_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE `partition` DROP FOREIGN KEY FK_9EB910E4F1E9F66E'); $this->addSql('DROP INDEX IDX_9EB910E4F1E9F66E ON `partition`'); $this->addSql('ALTER TABLE `partition` ADD os_name VARCHAR(255) NOT NULL, DROP operative_system_id'); } }