我正在创建一个应用程序，它将有几个部分连接到解析，所以我想我会尝试为解析函数创建一个自定义类。
此地址簿标签是第一次尝试。
我遇到了一些我认为会如此简单的事情，但经过10个小时的研究，我正转向这里。
这是ViewController
var addressUUID = NSUUID().UUIDString
class AddViewController : UIViewController, UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
@IBOutlet weak var addressImage : UIImageView!
@IBOutlet weak var nameField : UITextField!
@IBOutlet weak var lastNameField : UITextField!
@IBOutlet weak var phoneField : UITextField!
@IBOutlet weak var emailField : UITextField!
@IBOutlet weak var addressCityField : UITextField!
@IBOutlet weak var addressCountryField : UITextField!
@IBOutlet weak var nameFieldLabel : UILabel!
@IBOutlet weak var lastNameFieldLabel : UILabel!
@IBOutlet weak var phoneFieldLabel : UILabel!
@IBOutlet weak var emailFieldLabel : UILabel!
@IBOutlet weak var addressCityFieldLabel : UILabel!
@IBOutlet weak var addressCountryFieldLabel : UILabel!
@IBOutlet weak var doneButton: UIButton!
@IBOutlet weak var scrollView: UIScrollView!
var scrollViewHeight : CGFloat = 0
var person : Person?
var parse : ParseData?
// creating frame for keyboard to force scroll view up
var keyboard = CGRect()
@IBAction func addButtonPressed(sender : UIButton) {
//NSLog("Button pressed")
print ("\(nameField.text)")
parse = ParseData.init(firstName: nameField.text!)
// Saves data to Parse class, regardless of if new or updated record
do {
try parse!.setFirstName(nameField.text!)
try parse!.setLastName(lastNameField.text!)
try parse!.setPhone(phoneField.text!)
try parse!.setEmail(emailField.text!)
try parse!.setAddressCity(addressCityField.text!)
try parse!.setAddressCountry(addressCountryField.text!)
try parse!.setAddressImage(addressImage.image!)
try parse!.setUUID(addressUUID)
} catch let error as PersonValidationError {
var errorMsg = ""
switch(error) {
case .InvalidFirstName:
errorMsg = "Invalid first name"
case .InvalidAddressCity:
errorMsg = "Invalid City"
case .InvalidEmail:
errorMsg = "Invalid email address"
case .InvalidPhone:
errorMsg = "Invalid phone number"
case .InvalidAddressImage:
errorMsg = "Invalid Image"
case .InvalidAddressCountry:
errorMsg = "Invalid Country"
}
let alert = UIAlertController(title: "Error", message: errorMsg, preferredStyle: .Alert)
alert.addAction(UIAlertAction(title: "Okay", style: .Default, handler: nil))
self.presentViewController(alert, animated: true, completion: nil)
} catch {
}
if person == nil
{
parse!.saveAddressToParse()
} else {
parse!.updateAddressToParse()
}
如上所述，错误是＆＃34;尝试＆＃34;
的第一行奇怪的是发送给Person类的数据工作正常。 此外，当我在这个VC上使用Parse函数时，它可以工作（尽管有修改后的代码）
这是ParseData类
import Foundation
import Parse
enum ParseValidationError : ErrorType {
case InvalidFirstName
case InvalidAddressCity
case InvalidPhone
case InvalidEmail
case InvalidAddressCountry
case InvalidAddressImage
}
// class ParseData : PFObject, PFSubclassing
class ParseData : PFObject, PFSubclassing
{
private(set) var firstName : String?
private(set) var lastName : String?
private(set) var addressCity : String?
private(set) var addressCountry : String?
private(set) var phone : String?
private(set) var email : String?
private(set) var uuid : String?
private(set) var addressImageFile : UIImage?
var person : Person?
init?(firstName fn: String) {
super.init()
do {
try setFirstName(fn)
} catch {
return nil
}
}
static func parseClassName() -> String {
return "ParseData"
}
func saveAddressToParse () {
print ("saveToParse function begins")
let savedAddressObject = PFObject(className: "addressBook")
savedAddressObject["firstName"] = self.firstName!
savedAddressObject["lastName"] = self.lastName!
savedAddressObject["phone"] = self.phone!
savedAddressObject["email"] = self.email!
savedAddressObject["addressCity"] = self.addressCity!
savedAddressObject["addressCountry"] = self.addressCountry!
savedAddressObject["username"] = PFUser.currentUser()!.username
savedAddressObject["uuid"] = addressUUID
savedAddressObject["entryFrom"] = "Divelog New"
let addressBookImageData = UIImageJPEGRepresentation(self.addressImageFile!, 0.5)
let addressBookImageFile = PFFile(name: "addressBookImage.jpg", data: addressBookImageData!)
savedAddressObject ["addressBookImage"] = addressBookImageFile
savedAddressObject.pinInBackground()
savedAddressObject.saveEventually()
}
func updateAddressToParse () {
print ("updateToParse function begins")
let updateAddressQuery = PFQuery(className: "addressBook")
updateAddressQuery.whereKey("uuid", equalTo: person!.uuid!)
updateAddressQuery.getFirstObjectInBackgroundWithBlock {(objects: PFObject?, error: NSError?) -> Void in
if error == nil {
if let updateAddressObject = objects {
updateAddressObject.setValue(self.firstName!, forKey: "firstName")
updateAddressObject.setValue(self.lastName!, forKey: "lastName")
updateAddressObject.setValue(self.phone!, forKey: "phone")
updateAddressObject.setValue(self.email!, forKey: "email")
updateAddressObject.setValue(self.addressCity!, forKey: "addressCity")
updateAddressObject.setValue(self.addressCountry!, forKey: "addressCountry")
updateAddressObject.setValue("Divelog Update", forKey: "entryFrom")
let addressBookImageData = UIImageJPEGRepresentation(self.addressImageFile!, 0.5)
let addressBookImageFile = PFFile(name: "addressImage.jpg", data: addressBookImageData!)
updateAddressObject.setValue(addressBookImageFile!, forKey: "addressBookImage")
updateAddressObject.pinInBackground()
updateAddressObject.saveEventually()
}
}
}
}
func setFirstName(fn : String) throws {
firstName = fn
}
func setLastName(ln : String) throws {
lastName = ln
}
func setPhone (ph : String) throws {
phone = ph
}
func setEmail (em : String) throws {
email = em
}
func setAddressCity(adc : String) throws {
addressCity = adc
}
func setAddressCountry(ad : String) throws {
addressCountry = ad
}
func setAddressImage(ai : UIImage) throws {
addressImageFile = ai
}
func setUUID(ui : String) throws {
uuid = ui
}
}
需要添加到AppDelete：
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
ParseData.registerSubclass()
Parse.enableLocalDatastore()
以上是更正的答案，并且工作正常。
答案 0 :(得分：1)
我无法看到，在哪里创建ParseData实例。我明白了，你用
声明了它var parse : ParseData?
然后在addButtonPressed中使用它。但在两者之间，定义它的代码在哪里？类似的东西：
parse = ParseData()