I am running the following code:
var inventario = PFQuery(className:"InventarioObjetos")
inventario.getObjectInBackgroundWithId(toPassID) {
(inventario: PFObject?, error: NSError?) -> Void in
if error != nil {
NSLog("%#", error!)
} else {
inventario["Categoria"] = self.nuevoCategoria.text
inventario["Descripcion"] = self.nuevoDescripcion.text
inventario["Tamano"] = self.tamano.text
// Guarda la fecha de entrada
let dateStringFormatter = NSDateFormatter()
dateStringFormatter.dateFormat = "dd-MM-yyyy"
dateStringFormatter.locale = NSLocale(localeIdentifier: "en_US_POSIX")
let d = dateStringFormatter.dateFromString(self.nuevoFechaDeEntrada.text)
inventario["FechaDeEntrada"] = d
}
}
And on the inventario["Tamano"] = self.tamano.text line, I get this error:
Cannot assign a value of type 'String!' to a value of type 'AnyObject?'
Just cast self.tamano.text to an AnyObject: inventario["Tamano"] = self.tamano.text as! AnyObject
try this:
inventario["Tamano"] = self.tamano.text? (as! AnyObject?) shouldn't need this
Actually I would add the "?" in all your conversions just in case the user left one empty or a check like
if let strTamano = self.tamano.text{
inventario["Tamano"] = strTamano
} else { println("error converting tamano") }
of course the println would popup a dialog or do something more useful to the final user.
Related
func showNumbers(){
if let inputString = numberInput.text {
let input = Int(inputString)
let nums = input?.formattedWithSeparator
let group = Int(round(groupslider.value))
let priceEach = Int(round(Double((nums)!/group*100))/100)
perperson.text = String(priceEach)
}
}
}
extension Formatter {
static let withSeparator: NumberFormatter = {
let formatter = NumberFormatter()
formatter.groupingSeparator = " "
formatter.numberStyle = .decimal
return formatter
}()
}
extension BinaryInteger {
var formattedWithSeparator: String {
return Formatter.withSeparator.string(for: self) ?? ""
}
}
I have two places that I want to make it like 1,000,000
input String and perperson.text
what should I use? NSNumberForatter?
I want to use thousandSeparator or groupSeparator.
I get " Binary operator '/' cannot be applied to operands of type 'String' and 'Int' " this error message.
Every child has a pick up point location consists of latitude and longitude that i fetch from sqlite database. I have childIdArray which is array of childID's. I want to calculate the estimate time(ETA) from current location of their respective drivers location i fetch from getCurrentLocationOfRespectiveDrivers() method with pickUp point of children that i fetch from sqlite database in form of array of latitude and longitude.
but i get error
fatal error: Array index out of range
in getCurrentLocationOfRespectiveDrivers() method.
Any help would be highly appreciated.. thanks in advance
var etaArray : [String] = []
var estimatedTime : String?
var latitudeArray : [Double] = []
var longitudeArray : [Double] = []
override func viewDidLoad() {
super.viewDidLoad()
let rs = ModelManager.sharedInstance.fetchingPickUpAnnotationsArray(ChildDetailsVC.parentID)
latitudeArray = rs.latPickUp
longitudeArray = rs.longPickUp
print("pickUpLatitudeArray = \(latitudeArray)")
print("pickUpLongitudeArray = \(longitudeArray)")
let result = ModelManager.sharedInstance.fetchingChildren( ChildDetailsVC.parentID)
self.childNameArray = result.childNames
self.childImageArray = result.childImages
self.childIDArray = result.chidIDs
self.childDriverArray = result.childDrivers
getCurrentLocationOfRespectiveDrivers()
for (var i = 0; i < childIDArray.count; i++)
{
etaArray.append("")
}
}
func getCurrentLocationOfRespectiveDrivers()
{
for( var i = 0 ; i < latitudeArray.count ; i++)
{
let url:NSURL = NSURL(string:"http://development.ssntpl.com/gogo_app/api.php?action=getDriverCurrentLocation")!
let request = NSMutableURLRequest(URL:url)
request.HTTPMethod = "POST"
let post:NSString = "child_id=\(childIDArray)"
request.HTTPBody = post.dataUsingEncoding(NSUTF8StringEncoding)
let task = NSURLSession.sharedSession().dataTaskWithRequest(request)
{
data, response, error in
if error != nil
{
print("error is \(error)")
return;
}
do
{
let myJSON = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
if let parseJSON = myJSON
{
let Status = parseJSON["status"] as! Int
let Code = parseJSON["code"] as! Int
if (Status == 1 && Code == 200)
{
let Result = parseJSON["result"] as! NSArray
self.etaArray.removeAll()
//here i get the crash fatal error: Array index out of range
let latitudePickUp = self.latitudeArray[i]
let longitudePickUp = self.longitudeArray[i]
let CoordinatePickUp = CLLocation(latitude: latitudePickUp, longitude: longitudePickUp)
for res in Result
{
self.estimatedTime = ""
if (res["exists"] as! Int == 1)
{
let lastLatitude = res["latitude"] as! CLLocationDegrees
let lastLongitude = res["longitude"] as! CLLocationDegrees
let Location : CLLocation = CLLocation(latitude: lastLatitude, longitude: lastLongitude)
let meters:CLLocationDistance = Location.distanceFromLocation(CoordinatePickUp)
print(meters)
let ID = res["child_id"] as! String
let time = round(meters/40000 * 60)
self.estimatedTime = String(time)
self.etaArray.append(self.estimatedTime!)
}
else
{
self.etaArray.append("")
}
}
}
else
{
}
}
}
catch
{
print(error)
}
}
//executing the task
task.resume()
}
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.tableView.reloadData()
})
}
I get this error when using setPropertiesToFetch. It's odd because info1 and info2 do exist in my entity.
let fetchRequest = NSFetchRequest()
let entityDescription = NSEntityDescription.entityForName("Table1", inManagedObjectContext: managedObjectContext)
fetchRequest.resultType = .DictionaryResultType
fetchRequest.returnsDistinctResults = true
fetchRequest.propertiesToFetch = ["info1", "info2"]
fetchRequest.includesSubentities = true
fetchRequest.entity = entityDescription
do {
let result = try managedObjectContext.executeFetchRequest(fetchRequest)
print(result)
} catch {
let fetchError = error as NSError
print(fetchError)
}
Without propertiesToFetch line I get this output:
[{
info1 = data1;
info2 = data2;
info3 = data3;
}, {
...
}]
Entity needs to be set before propertiesToFetch can be used.
fetchRequest.entity = entityDescription
fetchRequest.propertiesToFetch = ["info1", "info2"]
fetchRequest.includesSubentities = true
func refreshResults() {
let theWidth = view.frame.size.width
let theHeight = view.frame.size.height
messageX = 37.0
messageY = 26.0
messageArray.removeAll(keepCapacity: false)
senderArray.removeAll(keepCapacity: false)
let innerP1 = NSPredicate(format: "sender = %# AND other = %#", userName, otherName)
var innerQ1: PFQuery = PFQuery(className: "Messages", predicate: innerP1)
let innerP2 = NSPredicate(format: "sender = %# AND other = %#", otherName, userName)
var innerQ2: PFQuery = PFQuery(className: "Messages", predicate: innerP2)
var query = PFQuery.orQueryWithSubqueries([innerQ1, innerQ2] )
query.addAscendingOrder("createdAt")
query.findObjectsInBackgroundWithBlock {
(objects:[AnyObject]?, error:NSError?) -> Void in // this is line with error
if error == nil {
for object in objects! {
self.senderArray.append(object.objectForKey("sender") as! String)
self.messageArray.append(object.objectForKey("message") as! String)
}
}
}
}
Using Swift 2.0 I get the error
'cannot convert value of type [AnyObject]?, NSError? -> void to expected argument type PFQueryArrayResultBlock'
I figured out that it's because of new error handling in Swift 2.0, but I am still not figuring out what I need to do to fix this.
try:
**(objects:[PFObject]?, error: NSError?) -> Void in**
Parse changed, and recommends to use PFObject
I will try to explain briefly what the situation is.
I am building a quiz app and I wanted it to work mainly using the internet, but also to work for a while when the user is disconnected. The older code I was using was made only with synchronous queries, it was taking more time than what I expected. So i decided to reformulate it.
The situation I projected is the following:
When my user selects a subject the app will synchronously get 1 question for each subsubject in order to be ready for my user click and to be faster.
After getting this first question, the app would then get another 4 (or how much is needed to complete 5) for each of the subsubjects asynchronously, while the user is occupied answering the first question that was presented to him.
Finally, the app would save the objects in the local datastore, so that the user can answer 5 questions for each subsubject when he is not connected.
Here is my code:
func getQuestionsRemotelyandSave (subsubject:String?, subject:String?, arrayOfSubsubjects:[String]?) {
self.getFromUserDefaults()
if Reachability.isConnectedToNetwork() == true {
if self.needsToGetQuestions == true {
let user = PFUser.currentUser()
var query = PFQuery(className: "Questions")
query.whereKey("answeredBy", equalTo: user)
query.whereKey("grade", equalTo: user["grade"])
if subsubject != nil && subject == nil {
query.whereKey("subsubject", equalTo: subsubject)
query.limit = 2
let array = query.findObjects()
for item in array {
let object = item as PFObject
var QuestionToPin = PFObject(className: "Questions")
QuestionToPin["Question"] = object["Question"] as String
QuestionToPin["rightAnswer"] = object ["rightAnswer"] as String
QuestionToPin["wrongAnswer1"] = object ["wrongAnswer1"] as String
QuestionToPin["wrongAnswer2"] = object ["wrongAnswer2"] as String
QuestionToPin["wrongAnswer3"] = object ["wrongAnswer3"] as String
QuestionToPin["grade"] = object["grade"] as String
QuestionToPin["subject"] = object ["subject"] as String
QuestionToPin["subsubject"] = object ["subsubject"] as String
QuestionToPin["feedback"] = object ["feedback"] as? String
QuestionToPin["shortFeedback1"] = object ["shortFeedback1"] as? String
QuestionToPin["shortFeedback2"] = object ["shortFeedback2"] as? String
QuestionToPin["shortFeedback3"] = object ["shortFeedback3"] as? String
QuestionToPin.pin()
}
query.limit = 3
query.findObjectsInBackgroundWithBlock({ (objects:[AnyObject]!, error:NSError!) -> Void in
if error == nil {
let questions = objects as [PFObject]
var QuestionsToPin = [PFObject]()
for object in questions {
var QuestionToPin = PFObject(className: "Questions")
QuestionToPin["Question"] = object["Question"] as String
QuestionToPin["rightAnswer"] = object ["rightAnswer"] as String
QuestionToPin["wrongAnswer1"] = object ["wrongAnswer1"] as String
QuestionToPin["wrongAnswer2"] = object ["wrongAnswer2"] as String
QuestionToPin["wrongAnswer3"] = object ["wrongAnswer3"] as String
QuestionToPin["grade"] = object["grade"] as String
QuestionToPin["subject"] = object ["subject"] as String
QuestionToPin["subsubject"] = object ["subsubject"] as String
QuestionToPin["feedback"] = object ["feedback"] as? String
QuestionToPin["shortFeedback1"] = object ["shortFeedback1"] as? String
QuestionToPin["shortFeedback2"] = object ["shortFeedback2"] as? String
QuestionToPin["shortFeedback3"] = object ["shortFeedback3"] as? String
QuestionToPin.pinInBackground()
}
}
})
}
if subsubject == nil && subject != nil {
var firstTime = true
var semaphore = dispatch_semaphore_create(0)
query.limit = 1
for item in arrayOfSubsubjects! {
if item != "Todas as matérias" {
var query3 = PFQuery(className: "Questions")
query3.fromLocalDatastore()
query3.whereKey("subsubject", equalTo: item)
let count = query3.countObjects()
if count == 0 {
query.whereKey("subsubject", equalTo: item)
let array:NSArray = query.findObjects()
for item in array {
let object = item as PFObject
var QuestionToPin = PFObject(className: "Questions")
QuestionToPin["Question"] = object["Question"] as String
QuestionToPin["rightAnswer"] = object ["rightAnswer"] as String
QuestionToPin["wrongAnswer1"] = object ["wrongAnswer1"] as String
QuestionToPin["wrongAnswer2"] = object ["wrongAnswer2"] as String
QuestionToPin["wrongAnswer3"] = object ["wrongAnswer3"] as String
QuestionToPin["grade"] = object["grade"] as String
QuestionToPin["subject"] = object ["subject"] as String
QuestionToPin["subsubject"] = object ["subsubject"] as String
QuestionToPin["feedback"] = object ["feedback"] as? String
QuestionToPin["shortFeedback1"] = object ["shortFeedback1"] as? String
QuestionToPin["shortFeedback2"] = object ["shortFeedback2"] as? String
QuestionToPin["shortFeedback3"] = object ["shortFeedback3"] as? String
QuestionToPin.pin()
}
}
if count > 0 {
var limit = 5 - count
if limit < 0 {
limit = 0
}
query.limit = limit
if firstTime == false {
dispatch_semaphore_wait(semaphore, DISPATCH_TIME_FOREVER)
}
query.findObjectsInBackgroundWithBlock({ (objects:[AnyObject]!, error:NSError?) -> Void in
if error == nil {
let questions = objects as [PFObject]
for object in questions {
var QuestionToPin = PFObject(className: "Questions")
QuestionToPin["Question"] = object["Question"] as String
QuestionToPin["rightAnswer"] = object ["rightAnswer"] as String
QuestionToPin["wrongAnswer1"] = object ["wrongAnswer1"] as String
QuestionToPin["wrongAnswer2"] = object ["wrongAnswer2"] as String
QuestionToPin["wrongAnswer3"] = object ["wrongAnswer3"] as String
QuestionToPin["grade"] = object["grade"] as String
QuestionToPin["subject"] = object ["subject"] as String
QuestionToPin["subsubject"] = object ["subsubject"] as String
QuestionToPin["feedback"] = object ["feedback"] as? String
QuestionToPin["shortFeedback1"] = object ["shortFeedback1"] as? String
QuestionToPin["shortFeedback2"] = object ["shortFeedback2"] as? String
QuestionToPin["shortFeedback3"] = object ["shortFeedback3"] as? String
QuestionToPin.pinInBackground()
}
dispatch_semaphore_signal(semaphore)
firstTime = false
}
})
}
}
}
}
}
}
}
The problem I'm facing is that I cant request multiple asynchronous functions from Parse. What I thought was maybe waiting for an asynchronous function to finish before the other one starts, but I wanted it to happen without the user having to wait. Is there a way of doing it?
Thank you.