abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.'); $this->addSql('ALTER TABLE membercard_grade ADD grade_background varchar(1024) DEFAULT "" COMMENT \'等级背景\''); //$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\'.'); } }