如何追加数组.或者我如何将模型转换为 nsmuttable 数组

问题描述

在我的应用程序中，我使用 alamofire 对象映射器来使用 MVC 结构.现在我得到了一个数组，我把它放在模型类中.

in my app i am using alamofire object mapper for use MVC structure. now i am getting one array and i fit it in model class.

这里是模型类

   class OrderDetailSecond: Mappable {

    var id : Int?
    var isRxMedicine : Int?
    var medicineTypeId : String?
    var name : String?
    var orderId : String?
    var price : String?
    var quentity : Int?
    var strength : String?

    required init?(_ map: Map){

    }

     func mapping(map: Map) {

        id <- map["id"]
        isRxMedicine <- map["is_rx_medicine"]
        medicineTypeId <- map["medicine_type_id"]
        name <- map["name"]
        orderId <- map["order_id"]
        price <- map["price"]
        quentity <- map["qty"]
        strength <- map["strengh"]
    }
}

注意:OrderDetailSecond 是一个数组

现在在 [OrderDetailSecond] 的 orderData 中，我得到了那个数组

and now in orderData which is [OrderDetailSecond] i got that array

那个数组有很多这样的对象

that array have many object like this

(
                            {
                id = 50158;
                "is_rx_medicine" = 1;
                "medicine_type_id" = 2;
                name = "1-11~qwe";
                "order_id" = 50128;
                price = "<null>";
                qty = 12;
                strengh = "12 mcg";
            },
                            {
                id = 50159;
                "is_rx_medicine" = 1;
                "medicine_type_id" = 3;
                name = "1-12~qwe";
                "order_id" = 50128;
                price = "<null>";
                qty = 12;
                strengh = "12 ng/dL";
            }
        );

现在我只想要"is_rx_medicine" = 1 的对象；

Now i want only that object whom "is_rx_medicine" = 1;

并希望将该对象添加到任何特定数组中.那么我该怎么做呢?

and want to add that object in any perticular array. So how can i do this?

这是我试过的.

for mytest in orderdata
                {
                    if mytest.isRxMedicine == 1
                    {

                        self.myarray?.addObject(mytest)
                    }
                }

注意:在这个 mytest 中输入 OrderDetailSecond 就像 let mytest: OrderDetailSecond

NOTE: in this mytest is type OrderDetailSecond like let mytest: OrderDetailSecond

当我打印 myarray 时，它显示 orderpilz.OrderDetailSecond，这是我的类名.

and when i print myarray its show orderpilz.OrderDetailSecond which is my class name.

当我尝试像这样打印时

 print(myarray?.objectAtIndex(0).valueForKey("quentity"))

它给了我这个错误

 *** NSForwarding: warning: object 0x1461b800 of class 'orderpilz.OrderDetailSecond' does not implement methodSignatureForSelector: -- trouble ahead
Unrecognized selector -[orderpilz.OrderDetailSecond valueForKey:]

可能的选择.

1-> 我可以用这样的对象创建数组，然后手动向该对象添加值，然后将该对象添加到数组中.所以让我知道我该怎么做

1-> i can make array with object like this and then add value to that object manually and then add that object to array. So let me know how can i do this

推荐答案

你可以简单地过滤 orderdata 数组而不是循环和检查条件

You can simply filter the orderdata array instead of looping and checking the condition

let filteredArray = orderdata.filter({
    $0.isRxMedicine == 1
})

这将返回具有 isRxMedicine = 1

注意: filteredArray 中的对象类型将与 orderdata

Note: The type of objects in the filteredArray will be same as objects in orderdata

这篇关于如何追加数组.或者我如何将模型转换为 nsmuttable 数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！