Question

我的课程定义为：

class Device: Object {
        dynamic public var assetTag = ""
        dynamic var location = ""
    }

我还有两个数组定义为：

let array = ["12", "42", "52", "876"]
let array2 = ["SC", "EDS", "DS", "EF"]

我想遍历第一个数组并将每个值添加到我的领域Device.assetTag对象并循环遍历我的第二个数组并将每个值添加到Device.location对象。

我尝试使用Realm自述文件中的代码来添加第一个数组中的数据，但它似乎没有循环：

let realmArray = Device(value: array)

let realm = try! Realm()


        try! realm.write {
            realm.add(realmArray)
        }

Answer 1

你有两个数组，一个包含asetTags和另一个位置，所以首先你必须从那些数组构建对象。您可以执行类似以下操作（可能需要重构）

class Device: Object {
   dynamic public var assetTag = ""
   dynamic var location = ""
}

class Test {

   let assetTags = ["12", "42", "52", "876"]
   let locations = ["SC", "EDS", "DS", "EF"]


   func saveDevice() {
      let realm = try! Realm()
      try! realm.write {
         let allDevices = getDeviceArray()
         for device in allDevices {
            realm.add(device)
         }
     }
  }

func getDeviceArray() -> [Device] {
    let requiredDevices = [Device]()
    var index = 0
    for tag in assetTags {
        let locationForTag = locations[index]
        let device = Device()
        device.assetTag = tag
        device.location = locationForTag
        requiredDevices.append(device)
        index += 1
    }
    return requiredDevices
  }

}

请记住将循环放在realm.write中进行批处理操作，这样可确保连接写入一次。

循环遍历数组并将每个值添加到Realm数据库Swift 3

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