addSql('ALTER TABLE accommodation_booking CHANGE first_name first_name VARCHAR(100) DEFAULT NULL, CHANGE last_name last_name VARCHAR(100) DEFAULT NULL, CHANGE email email VARCHAR(255) DEFAULT NULL, CHANGE group_name group_name VARCHAR(255) DEFAULT NULL'); } public function down(Schema $schema): void { $this->addSql('ALTER TABLE accommodation_booking CHANGE group_name group_name VARCHAR(255) NOT NULL, CHANGE first_name first_name VARCHAR(100) NOT NULL, CHANGE last_name last_name VARCHAR(100) NOT NULL, CHANGE email email VARCHAR(255) NOT NULL'); } }