sum('stock-num'); $holdNum = ProductOrder::where('product_id', $productId)->where('status', ProductOrder::Paid)->sum('num'); return bcadd($popularNum, $holdNum); } //获取产品流通量 public static function getProductCirculation(int $productId): int { return Loader::model('ProductOrder')::where('product_id', $productId)->where('status', ProductOrder::Paid)->count(); } // }