addSql('ALTER TABLE feedback ADD assignment_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE feedback ADD CONSTRAINT FK_D2294458D19302F8 FOREIGN KEY (assignment_id) REFERENCES assignment (id)'); $this->addSql('CREATE INDEX IDX_D2294458D19302F8 ON feedback (assignment_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE feedback DROP FOREIGN KEY FK_D2294458D19302F8'); $this->addSql('DROP INDEX IDX_D2294458D19302F8 ON feedback'); $this->addSql('ALTER TABLE feedback DROP assignment_id'); } }