addSql('ALTER TABLE user ADD active_festival_id INT DEFAULT NULL'); $this->addSql('ALTER TABLE user ADD CONSTRAINT FK_8D93D649DE145A1C FOREIGN KEY (active_festival_id) REFERENCES festival (id)'); $this->addSql('CREATE UNIQUE INDEX UNIQ_8D93D649DE145A1C ON user (active_festival_id)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE user DROP FOREIGN KEY FK_8D93D649DE145A1C'); $this->addSql('DROP INDEX UNIQ_8D93D649DE145A1C ON user'); $this->addSql('ALTER TABLE user DROP active_festival_id'); } }