abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.'); $this->addSql('ALTER TABLE registrierung CHANGE datenschutz datenschutz TINYINT(1) NOT NULL'); } public function down(Schema $schema) : void { // this down() migration is auto-generated, please modify it to your needs $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.'); $this->addSql('ALTER TABLE registrierung CHANGE datenschutz datenschutz INT NOT NULL'); } }