addSql('ALTER TABLE activity ADD comment_comment TEXT DEFAULT NULL'); $this->addSql('ALTER TABLE activity ADD comment_userId INT DEFAULT NULL'); $this->addSql('ALTER TABLE activity ADD comment_date TIMESTAMP(0) WITHOUT TIME ZONE DEFAULT NULL'); } public function down(Schema $schema) : void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('ALTER TABLE activity DROP comment_comment'); $this->addSql('ALTER TABLE activity DROP comment_userId'); $this->addSql('ALTER TABLE activity DROP comment_date'); } }