【发布时间】：2016-04-11 18:56:32
【问题描述】：
我是 Realm 新手，尝试将 JSON 数据从 WebService 保存到我的 Realm DB 时遇到了一些麻烦。
这是 JSON：
{
"Programacao":[
{
"Dia":"5",
"Idp":"1833",
"Programa":"T\u00e1 Na Hora",
"Inicio":"06:00",
"Final":"08:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1834",
"Programa":"Bom dia Chiru",
"Inicio":"08:00",
"Final":"09:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1835",
"Programa":"Conex\u00e3o",
"Inicio":"09:00",
"Final":"11:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1836",
"Programa":"As Mais Pedidas",
"Inicio":"11:00",
"Final":"12:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1837",
"Programa":"Casa da Sogra",
"Inicio":"12:00",
"Final":"13:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1838",
"Programa":"Canal Livre",
"Inicio":"13:00",
"Final":"15:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"18",
"Programa":"Batid\u00e3o da Chiru",
"Inicio":"15:00",
"Final":"17:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1827",
"Programa":"Sul Bandas",
"Inicio":"17:00",
"Final":"19:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1828",
"Programa":"Voz do Brasil",
"Inicio":"19:00",
"Final":"20:00",
"Data":"08\/04\/2016"
},
{
"Dia":"5",
"Idp":"1831",
"Programa":"Al\u00f4 Chiru",
"Inicio":"20:00",
"Final":"23:59",
"Data":"08\/04\/2016"
}
]
}
我创建了以下结构：
领域对象类：
import Foundation
import RealmSwift
class ROListing: Object { // Programação da Rádio
dynamic var id = 0
dynamic var showName = ""
dynamic var showId = ""
dynamic var showStartTime = ""
dynamic var showEndTime = ""
dynamic var showNumericDate = ""
dynamic var showDate = ""
override static func primaryKey() -> String? {
return "id"
}
}
对象操作类：
import Alamofire
import SwiftyJSON
import Foundation
class Listing: ResponseJSONObjectSerializable {
var showName :String? // nomePrograma
var showId :String? // idp
var showStartTime :String? // inicioPrograma
var showEndTime :String? // finalPrograma
var showNumericDate :String? // dia
var showDate :String? // data
required init?(json: JSON) {
self.showName = json["Programa"].string
self.showId = json["Idp"].string
self.showStartTime = json["Inicio"].string
self.showEndTime = json["Final"].string
self.showNumericDate = json["Dia"].string
self.showDate = json["Data"].string
}
required init() { }
}
class ListingArray: ResponseJSONObjectSerializable {
var showArray: [Listing]? // Programacao
required init?(json: JSON) {
if let arrayJson = json["Programacao"].array {
self.showArray = []
for json in arrayJson {
let instance = Listing(json: json)
self.showArray?.append(instance!)
}
}
}
required init() { }
}
通过以下方式与 WebService 连接：
func getRadioListing(success: () -> ()) {
guard let url = apiController.createURLWithComponentsForListingsWith(appId: "63") else {
print("Invlaid URL!")
return
}
print(url)
Alamofire.request(.GET, url).responseObject {
(response: Response<ListingArray, NSError>) in
if let jsonResults = response.result.value {
self.listings = jsonResults
for listing in self.listings.showArray! {
RealmObjectManager.sharedInstance.createUpdateDB(withListing: listing)
}
success()
} else {
print("Error parsing JSON!")
return
}
}
}
最后，将对象实际保存到 Realm DB 的方法。
func createUpdateDB(withListing listing: Listing) {
print(Realm.Configuration.defaultConfiguration.path!)
if self.listingArray.count == 0 {
do {
try self.realm.write {
let newListing = ROListing()
newListing.showName = listing.showName!
newListing.showId = listing.showId!
newListing.showStartTime = listing.showStartTime!
newListing.showEndTime = listing.showEndTime!
newListing.showNumericDate = listing.showNumericDate!
newListing.showDate = listing.showDate!
self.realm.add(newListing)
}
} catch let error as NSError {
print("Error creating Listing DB: \(error.userInfo)")
}
}
}
但是，我无法将所有节目都放入数据库。有人可以帮我吗？
提前致谢！
【问题讨论】：
-
Cole 可能已经在这里解决了问题，但以防万一，您能否发布您在尝试插入所有节目时收到的错误日志？谢谢！
-
是的，我的逻辑有问题！我没有收到任何错误，但只有第一个元素 [0] 被保存。我想我需要先检查我的listingArray 是否为空（或nil？），然后执行写入。谢谢科尔坎贝尔。
标签： ios json swift realm alamofire