abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.'); $this->addSql('ALTER TABLE comments ADD new TINYINT(1) NOT NULL'); $this->addSql('DELETE FROM comments'); $this->addSql('ALTER TABLE documents ADD comments_count INT NOT NULL'); $this->addSql('UPDATE documents SET comments_count = 0'); } /** * @param Schema $schema */ public function down(Schema $schema) { // 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 comments DROP new'); $this->addSql('ALTER TABLE documents DROP comments_count'); } }