Swift - 使用 swiftyJSON 根据字典中的值查找字典数组的索引
Swift - Find the index of an array of dictionaries based on the value in the dictionaries using swiftyJSON
我对编程很陌生，更不用说Swift。我从以前的编程尝试中理解了一些概念，所以我比以往任何时候都走得更远。如果我不清楚我需要什么，我深表歉意。
我正在提取警报列表的 JSON 数据，我正在尝试使用 swiftyJSON 解析数据，我认为这很正常，但我有 运行陷入尝试从数组中的某些字典中获取一些数据的障碍，不幸的是，在这个数组中的字典中是电子邮件地址所在的位置，并且不同的字典彼此之间使用相似的键。
我将向您展示我的结构、功能和 JSON 数据。请帮我获取电子邮件地址、服务 - 它的 ID 和标签。另外，显示的数据中可能有不止一项服务，我需要捕获所有这些服务。
这是 JSON 数据：
{
"hasNext": false,
"data": [
{
"status": [
1,
"READ"
],
"resolutionStatus": [
0,
"OPEN"
],
"description": "There is some description here",
"title": "Some Activity",
"entities": [
{
"view_name": "audits",
"type": "link",
"parameters": {
"orgUnit": "/"
},
"label": "/"
},
{
"type": "user",
"id": "hidden@hidden.com",
"label": "hidden@hidden.com"
},
{
"type": "service",
"id": 6666,
"label": "someService"
},
{
"type": "service",
"id": 7777,
"label": "anotherService"
}
],
"stories": [
5
],
"date": "2014-12-10T23:46:28.067000Z",
"audits": [
"ljBhqKQVOF9w",
"pISQyT9iy9w",
"oynGf2_CIw"
],
"_id": "54fdad0dfd",
"id": [
14683,
"ALERT_SOME_ACTIVITY"
],
"severity": [
5,
"HIGH"
]
}
这是我的结构：
struct AlertModel: Printable {
let alertUser: String?
let alertService: String?
let alertTitle: String?
let alertReadStatus: String?
let alertResolutionStatus: String?
let alertDescription: String?
let alertEntities: Array <String> = []
let alertDate: String?
let alertAudits: Array <String> = []
let alertId: String?
let
alertSeverity: String?
// change description to print to console
var description: String {
return "User: \(alertUser)\nService: \(alertService)\nTitle: \(alertTitle!)\nRead Status: \(alertReadStatus!)\nResolution Status: \(alertResolutionStatus!)\nDescription: \(alertDescription!)\nDate: \(alertDate!)\nAlert ID: \(alertId!)\nSeverity: \(alertSeverity!)\n******************************************\n"
}
init(alertUser: String?, alertService: String?, alertTitle: String?, alertReadStat
us: String?, alertResolutionStatus: String?, alertDescription: String?/*, alertEntities: Array<String>*/, alertDate: String?/*, alertAudits: Array<String>*/, alertId: String?, alertSeverity: String?) {
self.alertUser = alertUser
self.alertService = alertService
self.alertTitle = alertTitle
self.alertReadStatus = alertReadStatus
self.alertResolutionStatus = alertResolutionStatus
self.alertDescription = alertDescription
//self.alertEntities = alertEntities
self.alertDate = alertDate
//self.alertAudits = alertAudits
self.alertId = alertId
self.alertSeverity = alertSeverity
}
这里是函数：
let jsonAlert = JSON(data: jsonAlertObject)
if let alertArray = jsonAlert["data"].array {
var alerts = [AlertModel]()
for alertDict in alertArray {
let alertTitle: String? = alertDict["title"].stringValue
let alertReadStatus: String? = alertDict["status"][1].stringValue
let alertResolutionStatus: String? = alertDict["resolutionStatus"][1].stringValue
let alertDescription: String? = alertDict["description"].stringValue
let alertDate: String? = alertDict["date"].stringValue
let alertId: String? = alertDict["_id"].stringValue
// Need to grab the type and label from each dictionary in the array of entities
let alertEntitiesArray: Array? = alertDict["entities"].arrayObject
var arrayIndex = 0
var entitiesDict = ["" : ""]
while arrayIndex < alertEntitiesArray?.count {
entitiesDict[alertDict["entities"][arrayIndex]["type"].stringValue] = alertDict["entities"][arrayIndex]["label"].stringValue
arrayIndex++
}
let alertService: String? = entitiesDict["service"]
let alertUser: String? = entitiesDict["user"]
let alertSeverity: String? = alertDict["severity"][1].stringValue
let alert = AlertModel(alertUser: alertUser, alertService: alertService, alertTitle: alertTitle, alertReadStatus: alertReadStatus, alertResolutionStatus: alertResolutionStatus, alertDescription: alertDescription, alertDate: alertDate, alertId: alertId, alertSeverity: alertSeverity)
alerts.append(alert)
var alertsDictionaryByID = [alertId!: alert]
}
println(alerts)
}
如您所见，JSON 数据有几层深。我可以毫无问题地获取数据并将其提取出来。问题是 "Entities" 数组可能并不总是包含相同的数据。它可能有多个服务，它可能没有电子邮件地址，它可能有一组完全不同的数组第一个值的数据。
我正在尝试获取电子邮件地址。如果我能找到一种方法来搜索 "user" 和字典数据一样，然后当找到它时它将 return 数组索引值能够直接引用它，因为我永远不知道索引号用户价值是其中的一部分。
我希望我的理解足够清楚，有人可以帮助我。 --- 我的下一步将用每个单独的警报填充一个 listView。
我也在使用 SwiftyJSON，但使用 NSURLConnection 很容易。喜欢这个方法。
//MARK: - NSURLConnection Delegate methods
var responseData : NSMutableData = NSMutableData()
func connection(connection: NSURLConnection!, didReceiveResponse response: NSURLResponse!)
{
self.responseData.length = 0
}
func connection(connection: NSURLConnection!, didReceiveData data: NSData!)
{
self.responseData.appendData(data)
}
func connectionDidFinishLoading(connection: NSURLConnection!)
{
if let responseDatas = responseData as NSData? {
if let jsonResult : NSDictionary = NSJSONSerialization.JSONObjectWithData(responseDatas, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary? {
if let dataArray = jsonResult.valueForKeyPath("data") as? NSArray
{
if let entitiesArray = dataArray.valueForKeyPath("entities") as? NSArray
{
if let firstArray = dataArray[0]
{
// access your viewName and types here
}
// Like this method, convert all your parameters and access it.
}
}
else
{
// Do something here
}
}
else
{
// Do something here
}
}
else
{
// Do something here
}
}
func connection(connection: NSURLConnection!, didFailWithError error: NSError!)
{
// Do something here
}
我最终找到了 SwiftyJSON 和 Alamofire 来显着协助网络和 JSON 序列化。
至于数组中字典的问题，我最终创建了一个函数，该函数遍历实体数组，分别查看每个字典，然后基于 key="type" 执行 Switch 语句确定它是 "user" 字典还是 "service" 字典，然后将 'type' 值（表示它是用户还是服务）与 "label" 的值组合，这是用户名或服务名称，并从中创建了一个新字典，然后我可以参考它放回我的数据模型中。
class func retrieveDataFromEntitiesArray (alertDict: JSON) -> (entitesDict: Dictionary<String, String>, servicesArray: [String]) {
// Need to create an array object, instead of a JSON object, of the entities array to be able to get a count to run the while against.
var arrayIndex = 0
var entitiesDict: Dictionary<String, String> = [:]
var alertEntitiesArray = alertDict.arrayObject
var servicesArray = [String]()
while arrayIndex < alertEntitiesArray?.count {
var dictKey = alertDict[arrayIndex]["type"].string
switch (dictKey!) {
case "user":
entitiesDict[alertDict[arrayIndex]["type"].stringValue] = alertDict[arrayIndex]["label"].stringValue
case "service":
servicesArray.append(alertDict[arrayIndex]["label"].stringValue)
case "policyRule":
entitiesDict[alertDict[arrayIndex]["type"].stringValue] = alertDict[arrayIndex]["label"].stringValue
default:
println("Nothing Here")
}
arrayIndex++
}
return (entitiesDict, servicesArray)
}
我对编程很陌生，更不用说Swift。我从以前的编程尝试中理解了一些概念，所以我比以往任何时候都走得更远。如果我不清楚我需要什么，我深表歉意。
我正在提取警报列表的 JSON 数据，我正在尝试使用 swiftyJSON 解析数据，我认为这很正常，但我有 运行陷入尝试从数组中的某些字典中获取一些数据的障碍，不幸的是，在这个数组中的字典中是电子邮件地址所在的位置，并且不同的字典彼此之间使用相似的键。
我将向您展示我的结构、功能和 JSON 数据。请帮我获取电子邮件地址、服务 - 它的 ID 和标签。另外，显示的数据中可能有不止一项服务，我需要捕获所有这些服务。
这是 JSON 数据：
{
"hasNext": false,
"data": [
{
"status": [
1,
"READ"
],
"resolutionStatus": [
0,
"OPEN"
],
"description": "There is some description here",
"title": "Some Activity",
"entities": [
{
"view_name": "audits",
"type": "link",
"parameters": {
"orgUnit": "/"
},
"label": "/"
},
{
"type": "user",
"id": "hidden@hidden.com",
"label": "hidden@hidden.com"
},
{
"type": "service",
"id": 6666,
"label": "someService"
},
{
"type": "service",
"id": 7777,
"label": "anotherService"
}
],
"stories": [
5
],
"date": "2014-12-10T23:46:28.067000Z",
"audits": [
"ljBhqKQVOF9w",
"pISQyT9iy9w",
"oynGf2_CIw"
],
"_id": "54fdad0dfd",
"id": [
14683,
"ALERT_SOME_ACTIVITY"
],
"severity": [
5,
"HIGH"
]
}
这是我的结构：
struct AlertModel: Printable {
let alertUser: String?
let alertService: String?
let alertTitle: String?
let alertReadStatus: String?
let alertResolutionStatus: String?
let alertDescription: String?
let alertEntities: Array <String> = []
let alertDate: String?
let alertAudits: Array <String> = []
let alertId: String?
let
alertSeverity: String?
// change description to print to console
var description: String {
return "User: \(alertUser)\nService: \(alertService)\nTitle: \(alertTitle!)\nRead Status: \(alertReadStatus!)\nResolution Status: \(alertResolutionStatus!)\nDescription: \(alertDescription!)\nDate: \(alertDate!)\nAlert ID: \(alertId!)\nSeverity: \(alertSeverity!)\n******************************************\n"
}
init(alertUser: String?, alertService: String?, alertTitle: String?, alertReadStat
us: String?, alertResolutionStatus: String?, alertDescription: String?/*, alertEntities: Array<String>*/, alertDate: String?/*, alertAudits: Array<String>*/, alertId: String?, alertSeverity: String?) {
self.alertUser = alertUser
self.alertService = alertService
self.alertTitle = alertTitle
self.alertReadStatus = alertReadStatus
self.alertResolutionStatus = alertResolutionStatus
self.alertDescription = alertDescription
//self.alertEntities = alertEntities
self.alertDate = alertDate
//self.alertAudits = alertAudits
self.alertId = alertId
self.alertSeverity = alertSeverity
}
这里是函数：
let jsonAlert = JSON(data: jsonAlertObject)
if let alertArray = jsonAlert["data"].array {
var alerts = [AlertModel]()
for alertDict in alertArray {
let alertTitle: String? = alertDict["title"].stringValue
let alertReadStatus: String? = alertDict["status"][1].stringValue
let alertResolutionStatus: String? = alertDict["resolutionStatus"][1].stringValue
let alertDescription: String? = alertDict["description"].stringValue
let alertDate: String? = alertDict["date"].stringValue
let alertId: String? = alertDict["_id"].stringValue
// Need to grab the type and label from each dictionary in the array of entities
let alertEntitiesArray: Array? = alertDict["entities"].arrayObject
var arrayIndex = 0
var entitiesDict = ["" : ""]
while arrayIndex < alertEntitiesArray?.count {
entitiesDict[alertDict["entities"][arrayIndex]["type"].stringValue] = alertDict["entities"][arrayIndex]["label"].stringValue
arrayIndex++
}
let alertService: String? = entitiesDict["service"]
let alertUser: String? = entitiesDict["user"]
let alertSeverity: String? = alertDict["severity"][1].stringValue
let alert = AlertModel(alertUser: alertUser, alertService: alertService, alertTitle: alertTitle, alertReadStatus: alertReadStatus, alertResolutionStatus: alertResolutionStatus, alertDescription: alertDescription, alertDate: alertDate, alertId: alertId, alertSeverity: alertSeverity)
alerts.append(alert)
var alertsDictionaryByID = [alertId!: alert]
}
println(alerts)
}
如您所见，JSON 数据有几层深。我可以毫无问题地获取数据并将其提取出来。问题是 "Entities" 数组可能并不总是包含相同的数据。它可能有多个服务，它可能没有电子邮件地址，它可能有一组完全不同的数组第一个值的数据。
我正在尝试获取电子邮件地址。如果我能找到一种方法来搜索 "user" 和字典数据一样，然后当找到它时它将 return 数组索引值能够直接引用它，因为我永远不知道索引号用户价值是其中的一部分。
我希望我的理解足够清楚，有人可以帮助我。 --- 我的下一步将用每个单独的警报填充一个 listView。
我也在使用 SwiftyJSON，但使用 NSURLConnection 很容易。喜欢这个方法。
//MARK: - NSURLConnection Delegate methods
var responseData : NSMutableData = NSMutableData()
func connection(connection: NSURLConnection!, didReceiveResponse response: NSURLResponse!)
{
self.responseData.length = 0
}
func connection(connection: NSURLConnection!, didReceiveData data: NSData!)
{
self.responseData.appendData(data)
}
func connectionDidFinishLoading(connection: NSURLConnection!)
{
if let responseDatas = responseData as NSData? {
if let jsonResult : NSDictionary = NSJSONSerialization.JSONObjectWithData(responseDatas, options: NSJSONReadingOptions.MutableContainers, error: nil) as NSDictionary? {
if let dataArray = jsonResult.valueForKeyPath("data") as? NSArray
{
if let entitiesArray = dataArray.valueForKeyPath("entities") as? NSArray
{
if let firstArray = dataArray[0]
{
// access your viewName and types here
}
// Like this method, convert all your parameters and access it.
}
}
else
{
// Do something here
}
}
else
{
// Do something here
}
}
else
{
// Do something here
}
}
func connection(connection: NSURLConnection!, didFailWithError error: NSError!)
{
// Do something here
}
我最终找到了 SwiftyJSON 和 Alamofire 来显着协助网络和 JSON 序列化。
至于数组中字典的问题，我最终创建了一个函数，该函数遍历实体数组，分别查看每个字典，然后基于 key="type" 执行 Switch 语句确定它是 "user" 字典还是 "service" 字典，然后将 'type' 值（表示它是用户还是服务）与 "label" 的值组合，这是用户名或服务名称，并从中创建了一个新字典，然后我可以参考它放回我的数据模型中。
class func retrieveDataFromEntitiesArray (alertDict: JSON) -> (entitesDict: Dictionary<String, String>, servicesArray: [String]) {
// Need to create an array object, instead of a JSON object, of the entities array to be able to get a count to run the while against.
var arrayIndex = 0
var entitiesDict: Dictionary<String, String> = [:]
var alertEntitiesArray = alertDict.arrayObject
var servicesArray = [String]()
while arrayIndex < alertEntitiesArray?.count {
var dictKey = alertDict[arrayIndex]["type"].string
switch (dictKey!) {
case "user":
entitiesDict[alertDict[arrayIndex]["type"].stringValue] = alertDict[arrayIndex]["label"].stringValue
case "service":
servicesArray.append(alertDict[arrayIndex]["label"].stringValue)
case "policyRule":
entitiesDict[alertDict[arrayIndex]["type"].stringValue] = alertDict[arrayIndex]["label"].stringValue
default:
println("Nothing Here")
}
arrayIndex++
}
return (entitiesDict, servicesArray)
}