领域 - 更新对象数组中的所有项目，而不是仅附加新项目

Question

我正在尝试在 JournalEntryVC.swift 中添加与患者相关的不同日记条目。

My Patient 类有一个日记条目数组，即let journalEntries = List<Journal>() My Journal 类有代表日记条目属性的属性，即entryType、entryDate 和entryCaption。

但是，当循环访问 JournalEntryVC.swift 中的 json 时，不仅将新的日记条目对象附加到日记条目数组newPatient.journalEntries.append(myJournal)，我之前附加的日记条目的属性也被最新的日记条目属性替换.

例如，newPatient.journalEntries[0] 具有与 newPatient.journalEntries[1] 相同的 entryCaption 和 entryType 字符串值等。

主要问题：关于如何添加新的日记帐分录及其属性但不更改先前附加日记帐分录的日记帐分录属性的任何想法？

谢谢！

//  Patient.swift

import Foundation
import RealmSwift


class Patient: Object {
    
    dynamic var patientName = ""
    dynamic var patientAvatar = ""
    dynamic var patientId = 0
    dynamic var isDietitian = false 

//array of journal entries for each patient
    let journalEntries = List<Journal>() 

    
    override class func primaryKey() -> String {
        return "patientId"
    }
}

//  Journal.swift

import Foundation
import RealmSwift


class Journal: Object {

    dynamic var entryId = ""
    dynamic var entryType = ""
    dynamic var entryImg = ""
    dynamic var entryCaption = ""
    dynamic var entryComment = ""
    dynamic var entryCategory = ""
    dynamic var entryDate = ""
   
     
    override class func primaryKey() -> String {
        return "entryId"
    }
  
}

//JournalEntryVC.swift

import UIKit
import Alamofire
import BXProgressHUD
import SwiftyJSON
import RealmSwift


class JournalEntryVC: UIViewController, UITableViewDelegate, UITableViewDataSource {


  func reloadInitialData ( ) {
    
    //mutable arrays containing journal entry attributes
    desc.removeAllObjects()
    type.removeAllObjects()
    category.removeAllObjects()
    metric_stat.removeAllObjects()
    entryImages.removeAllObjects()
    dateCreate.removeAllObjects()
    comments.removeAllObjects()
    entryType.removeAllObjects()
    id.removeAllObjects()
    //comments.removeAllObjects()
    content.removeAllObjects()
    patName.removeAllObjects()
    
    
    let priority = DISPATCH_QUEUE_PRIORITY_DEFAULT
    dispatch_async(dispatch_get_global_queue(priority, 0)) {
        let request = Alamofire.request(.GET, "https://gethealthie.com/entries.json", headers: [
            "access-token": userCreds.objectForKey("access-token")! as! String,
            "client": userCreds.objectForKey("client")! as! String,
            "token-type": userCreds.objectForKey("token-type")! as! String,
            "uid": userCreds.objectForKey("uid")! as! String,
            "expiry": userCreds.objectForKey("expiry")! as! String
            ]).responseJSON { response in
                
                print(response.response)
                
                let json = JSON(data: response.data!)
                
                
                if json.count == 0 {
                    BXProgressHUD.hideHUDForView(self.view);
                }else {
                    
                    //Realm- create object instances of Patient and Journal class
                    let newPatient = Patient()
                    let myJournal = Journal()
                    
                    for i in 0 ..< json.count {
                        
                        let entry = json[i]
                        print(entry)
                        
                        let name = entry["entry_comments"]
                        let k = name["id"]
                        
                        //add entry attributes to mutable arrays
                        self.type.addObject(entry["type"].stringValue)
                        self.desc.addObject(entry["description"].stringValue)
                        self.category.addObject(entry["category"].stringValue)
                        self.metric_stat.addObject(entry["metric_stat"].stringValue)
                        self.dateCreate.addObject(entry["created_at"].stringValue)
                        self.comments.addObject(entry["entry_comments"].rawValue)
                        self.entryType.addObject(entry["category"].stringValue)
                        let posterInfo = entry["poster"]
                        let first = posterInfo["first_name"].stringValue
                        let last = posterInfo["last_name"].stringValue
                        let full = first + " " + last
                        self.patName.addObject(full)
                        self.id.addObject(entry["id"].stringValue)
                        self.entryImages.addObject(entry["image_url"].stringValue)
                        
                        
                        //Realm- access properties in Journal class and set it equal to the current journal entry attribute i.e. json[i]
                        myJournal.entryType = entry["type"].stringValue
                        myJournal.entryCaption = entry["description"].stringValue
                        myJournal.entryCategory = entry["category"].stringValue
                        myJournal.metricStat = entry["metric_stat"].stringValue
                        myJournal.entryDate = entry["created_at"].stringValue
                        //  myJournal.entryComment = entry["entry_comments"].rawValue as! String
                        
                        //append a NEW journal entry to the array of journal entries in Patient class i.e. let journalEntries = List<Journal>() as the json loops thru different journal entries
                        newPatient.journalEntries.append(myJournal)
                        
                        if i == json.count - 1 {
                            // do some task
                            dispatch_async(dispatch_get_main_queue()) {
                                self.tableView.reloadData()
                                BXProgressHUD.hideHUDForView(self.view)
                            }
                        }
                        
                    }
                    
                    //Realm- add newPatient object instance to realm
                    try! self.realm.write {
                        self.realm.add(newPatient)
                        
                    }
                }
                
        }
    }
  }

}

Answer 1

您在 for 循环之外实例化 Journal 的单个实例，更改该 Journal 的值，然后将其附加到患者的 journalEntries。尝试在 for 循环中移动 let myJournal = Journal()。