abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.'); $this->addSql('ALTER TABLE items_category ADD invoice_tax_rate_id bigint(20) DEFAULT 0 COMMENT \'发票税率ID\''); $this->addSql('ALTER TABLE items_category ADD invoice_tax_rate varchar(16) DEFAULT "" COMMENT \'发票税率\''); } /** * @param Schema $schema */ public function down(Schema $schema): void { $this->abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.'); } }