abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.'); $this->addSql('CREATE TABLE tweet (id INT AUTO_INCREMENT NOT NULL, tweet_id INT NOT NULL, text VARCHAR(255) NOT NULL, author VARCHAR(255) NOT NULL, created VARCHAR(255) NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci ENGINE = InnoDB'); } 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('DROP TABLE tweet'); } }