addSql('ALTER TABLE podcast ADD slug VARCHAR(255)'); $this->addSql('UPDATE podcast SET slug = LOWER(CAST(id AS VARCHAR))'); $this->addSql('ALTER TABLE podcast ALTER COLUMN slug SET NOT NULL'); $this->addSql('CREATE UNIQUE INDEX UNIQ_D7E805BD989D9B62 ON podcast (slug)'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('CREATE SCHEMA public'); $this->addSql('DROP INDEX UNIQ_D7E805BD989D9B62'); $this->addSql('ALTER TABLE podcast DROP slug'); } }