如何在 RestKit 中使用 "addAttributeMappings" 添加实体 class（DTO 的值）的对象？

Question

我的 json 响应不仅包含字符串，还包含 DTO 数组。对象映射的格式不正确。

json 响应正文：

{
  "id": null,
  "componentName": "Home Loan",
  "dynamicTableDetailDTOList": [
    {
      "id": 1,
      "fieldName": "username",
      "fieldType": "string",
      "isJoin": false,
      "joinType": null,
      "joinTable": null,
      "joinField": null,
      "displayField": null,
      "defaultValue": null,
      "length": 30,
      "label": "Name",
      "isrequired": true,
      "searchable": null,
      "dynamicTable": null
    },
    {
      "id": 2,
      "fieldName": "age",
      "fieldType": "integer",
      "isJoin": false,
      "joinType": null,
      "joinTable": null,
      "joinField": null,
      "displayField": null,
      "defaultValue": null,
      "length": 2,
      "label": "Age",
      "isrequired": true,
      "searchable": null,
      "dynamicTable": null
    },
    {
      "id": 3,
      "fieldName": "Gender",
      "fieldType": "radio",
      "isJoin": false,
      "joinType": [
        {
          "displayId": 0,
          "Value": "Male"
        },
        {
          "displayId": 1,
          "Value": "Female"
        }
      ],
      "joinTable": null,
      "joinField": null,
      "displayField": null,
      "defaultValue": null,
      "length": 30,
      "label": "Gender",
      "isrequired": true,
      "searchable": null,
      "dynamicTable": null
    },
    {
      "id": 4,
      "fieldName": "education",
      "fieldType": "combo",
      "isJoin": false,
      "joinType": [
        {
          "displayId": 0,
          "Value": "Btech"
        },
        {
          "displayId": 1,
          "Value": "Mca"
        },
        {
          "displayId": 2,
          "Value": "Mba"
        },
        {
          "displayId": 3,
          "Value": "Mcom"
        }
      ],
      "joinTable": null,
      "joinField": null,
      "displayField": null,
      "defaultValue": null,
      "length": 30,
      "label": "Education",
      "isrequired": true,
      "searchable": null,
      "dynamicTable": null
    }
  ]
}

下面给出的是我的实体模型。（请注意 dynamicTableDetailDTOList 是一个 DTO 数组）：

class LoanDetailModel: NSObject {

    var id:Any?
    var componentName = ""
    var dynamicTableDetailDTOList:[DynamicTableDetailDTOList] = []
}

class DynamicTableDetailDTOList: NSObject {

    var id:Int?
    var fieldName:String = ""
    var fieldType:String = ""
    var isJoin:Bool?
    var length:Int?
    var label:String = ""
    var isrequired:Bool?
    var searchable:Bool?
}

在我的ViewController中调用了一个回调方法，

override func viewDidLoad() {
    super.viewDidLoad()

    let loanDetailService = LoanDetailService()
    loanDetailService.getLoanDetails(success: { (model) in
        self.loanDetailModel = model!
        self.loanDetailTable.reloadData()
    })
    { (errorString) in
        let alert = UIAlertController(title: "Alert",
                                      message: errorString,
                                      preferredStyle: UIAlertControllerStyle.alert)
        alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler: nil))
        self.present(alert, animated: true, completion: nil)
    }
}

在 LoanDetailService class 中，实现了与服务调用相关的所有代码：

func getLoanDetails(success: @escaping((_ loanDetailModel: LoanDetailModel?) -> ()),
                    failure: @escaping ((_ error:String) -> ())) {

    // Define mappings
    let postMapping: RKObjectMapping = RKObjectMapping(for: LoanDetailModel.self)
    postMapping.addAttributeMappings(from: ["id", "componentName", "dynamicTableDetailDTOList"])


    // Define response decriptor
    let statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClass.successful)
    let resDescriptor = RKResponseDescriptor(mapping: postMapping, method: RKRequestMethod.GET, pathPattern: nil, keyPath: nil, statusCodes: statusCodes)

    // Create object manager
    let url = URL(string: baseURL)
    let jsonPlaceholderManager = RKObjectManager(baseURL: url)
    jsonPlaceholderManager?.addResponseDescriptor(resDescriptor)
    RKObjectManager.setShared(jsonPlaceholderManager)

    // Perform GET request
    RKObjectManager.shared().getObjectsAtPath(appendedURL, parameters: nil, success: { (operation, mappingResult) -> Void in
        let loanDetailModel: LoanDetailModel = mappingResult!.firstObject as! LoanDetailModel
        success(loanDetailModel)

    }) { (operation, error) -> Void in
        failure((error?.localizedDescription)!)
    }

}

如何更改我的实体模型？

Answer 1

下面解决了我的问题：

在 LoanDetailServiceClass 中，

func getLoanDetails(success: @escaping((_ loanDetailModel: LoanDetailModel?) -> ()),
                failure: @escaping ((_ error:String) -> ())) {

    // Define mappings
    let postMapping: RKObjectMapping = RKObjectMapping(for: LoanDetailModel.self)
    postMapping.addAttributeMappings(from: ["id","componentName"])

    let dTOListMapping: RKObjectMapping = RKObjectMapping(for: DynamicTableDetailDTOList.self)
    dTOListMapping.addAttributeMappings(from: ["fieldName",
                                               "fieldType",
                                               "label"])
    postMapping.addRelationshipMapping(withSourceKeyPath: "DynamicTableDetailDTOList" ,
                                       mapping: dTOListMapping)

    // Define response decriptor
    let statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClass.successful)
    let resDescriptor = RKResponseDescriptor(mapping: postMapping, method: RKRequestMethod.GET, pathPattern: nil, keyPath: nil, statusCodes: statusCodes)

    // Create object manager
    let url = URL(string: baseURL)
    let jsonPlaceholderManager = RKObjectManager(baseURL: url)
    jsonPlaceholderManager?.addResponseDescriptor(resDescriptor)
    RKObjectManager.setShared(jsonPlaceholderManager)

    // Perform GET request
    RKObjectManager.shared().getObjectsAtPath(appendedURL, parameters: nil, success: { (operation, mappingResult) -> Void in
        let loanDetailModel: LoanDetailModel = mappingResult!.firstObject as! LoanDetailModel
        success(loanDetailModel)

    }) { (operation, error) -> Void in
        failure((error?.localizedDescription)!)
    }
}

如何在 RestKit 中使用 "addAttributeMappings" 添加实体 class（DTO 的值）的对象？

How to add objects of entity class(DTO's value) using "addAttributeMappings" in RestKit?

json

dto

addattribute

restkit

rkobjectmapping

json 响应正文：

下面给出的是我的实体模型。（请注意 dynamicTableDetailDTOList 是一个 DTO 数组）：

在我的ViewController中调用了一个回调方法，

在 LoanDetailService class 中，实现了与服务调用相关的所有代码：

如何更改我的实体模型？

如何在 RestKit 中使用 "addAttributeMappings" 添加实体 class（DTO 的值）的对象？

How to add objects of entity class(DTO's value) using "addAttributeMappings" in RestKit?

json

dto

addattribute

restkit

rkobjectmapping

json 响应正文：

下面给出的是我的实体模型。 （请注意 dynamicTableDetailDTOList 是一个 DTO 数组）：

在我的ViewController中调用了一个回调方法，

在 LoanDetailService class 中，实现了与服务调用相关的所有代码：

如何更改我的实体模型？

下面给出的是我的实体模型。（请注意 dynamicTableDetailDTOList 是一个 DTO 数组）：