addSql('ALTER TABLE feedback ADD feedback_set_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE feedback ADD CONSTRAINT FK_D22944582DB73956 FOREIGN KEY (feedback_set_id) REFERENCES feedback_set (id) ON DELETE SET NULL'); $this->addSql('CREATE INDEX IDX_D22944582DB73956 ON feedback (feedback_set_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_D22944582DB73956'); $this->addSql('DROP INDEX IDX_D22944582DB73956 ON feedback'); $this->addSql('ALTER TABLE feedback DROP feedback_set_id'); } }