addSql('CREATE TABLE secret (hash VARCHAR(255) NOT NULL, secret_text VARCHAR(255) NOT NULL, created_at DATETIME NOT NULL --(DC2Type:datetime_immutable) , expires_at DATETIME DEFAULT NULL --(DC2Type:datetime_immutable) , remaining_views INTEGER NOT NULL, PRIMARY KEY(hash))'); } public function down(Schema $schema): void { // this down() migration is auto-generated, please modify it to your needs $this->addSql('DROP TABLE secret'); } }