I'm trying to insert a text under description column, and it keep giving me error, I think I'm having this issue because I wasn't able to use the pointer properly.. is there any one can help, I watched a number of tutorial video's as to how to setup the pointer in Parse, and that didn't solve the issue.
Thanks.
let me = self.textField.text
let query = PFQuery(className: "Store")
query.getObjectInBackgroundWithId ("product", block: {
(object: PFObject?, error: NSError?) -> Void in
if error != nil
{
print(error)
}
else if let transaction = object {
transaction["discription"] = "\(me)"
transaction.saveInBackground()
print(object!.objectForKey("discription"))
}
})
I finally got the answer, the best possible answer I got was, not store any information to the DB till all the input is done from the last page. It means you carry over the input as temp to each pages, then save it at the end... :)
Related
I'm trying to save back to CloudKit after updating a reference list and getting the error on the first line of this code block.
Error: Ambiguous reference to member 'save(_:completionHandler:)'
CKContainer.default().publicCloudDatabase.save(establishment) { [unowned self] record, error in
DispatchQueue.main.async {
if let error = error {
print("error handling to come")
} else {
print("success")
}
}
}
This sits within a function where the user going to follow a given location (Establishment). We're taking the existing establishment, and its record of followers, checking to see if the selected user is in it, and appending them to the list if not (or creating it if the list of followers is null).
Edit, in case helpful
//Both of these are passed in from the prior view controller
var establishment: Establishment?
var loggedInUserID: String?
#objc func addTapped() {
// in here, we want to take the logged in user's ID and append it to the list of people that want to follow this establishment
// which is a CK Record Reference
let userID = CKRecord.ID(recordName: loggedInUserID!)
var establishmentTemp: Establishment? = establishment
var followers: [CKRecord.Reference]? = establishmentTemp?.followers
let reference = CKRecord.Reference(recordID: userID, action: CKRecord_Reference_Action.none)
if followers != nil {
if !followers!.contains(reference) {
establishmentTemp?.followers?.append(reference)
}
} else {
followers = [reference]
establishmentTemp?.followers = followers
establishment = establishmentTemp
}
[this is where the CKContainer.default.....save block pasted at the top of the question comes in]
I've looked through the various posts on 'ambiguous reference' but haven't been able to figure out the source of my issue. tried to explicitly set the types for establisthmentTemp and followers in case that was the issue (based on the solutions to other related posts) but no luck.
Afraid I'm out of ideas as a relatively inexperienced newbie!
Help appreciated.
Documenting the solution that I figured out:
Combination of two issues:
I was trying to save an updated version of a CK Record instead of updating
I was not passing a CK Record to the save() call - but a custom object
(I believe point two was the cause of the 'ambiguous reference to member'
error)
I solved it by replacing the save attempt (first block of code in the question) with:
//first get the record ID for the current establishment that is to be updated
let establishmentRecordID = establishment?.id
//then fetch the item from CK
CKContainer.default().publicCloudDatabase.fetch(withRecordID: establishmentRecordID!) { updatedRecord, error in
if let error = error {
print("error handling to come")
} else {
//then update the 'people' array with the revised one
updatedRecord!.setObject(followers as __CKRecordObjCValue?, forKey: "people")
//then save it
CKContainer.default().publicCloudDatabase.save(updatedRecord!) { savedRecord, error in
}
}
}
Sorry, newbie here and Ive read extensively about completion handlers, dispatch queues and groups but I just can't get my head around this.
My app loads an array of Google Place IDs and then wants to query Google to get full details on each place. The problem is, due to async processing the Google Lookup Place returns immediately and the callback happens much further down the line so whats the "proper way" to know when the last bit of data has come in for my inquiries because the function ends almost immedately ?
Code is attached. Thanks in advance.
func testFunc() {
let googlePlaceIDs = ["ChIJ5fTXDP8MK4cRjIKzek6L6NM", "ChIJ9Wd6mGYGK4cRiWd0_bkohHg", "ChIJaeXT08ASK4cRkCGpGgzYpu8", "ChIJkRkS4BapK4cRXCT8-SJxNDI", "ChIJ3wDV_2zX5IkRtd0hg2i1LhE", "ChIJb4wUsI5w44kRnERe7ywQaJA"]
let placesClient = GMSPlacesClient()
for placeID in googlePlaceIDs {
placesClient.lookUpPlaceID(placeID, callback: { (place, error) in
if let error = error {
print("lookup place id query error: \(error.localizedDescription)")
return
}
guard let place = place else {
print("No place details for \(placeID)")
return
}
print("Place Name = \(place.name)")
})
}
print("Done")
}
I am attempting a query from Parse to get the object ids in an array and not have to hard code the ids. I attempt to use the following code:
var ObjectIDQuery = PFQuery(className: "QuestionsandAnswers")
ObjectIDQuery.findObjectsInBackgroundWithBlock({
(objectsArray : [AnyObject]?, error : NSError?) -> Void in
var ObjectIDs = objectsArray as! [PFObject]
for i in 0..<ObjectIDs.count{
self.ObjectIDsPublicArray.append(ObjectIDs[i].objectId)
}
})
But the code causes Xcode to state "Xcode encountered a problem. Source editor functionality is limited.Attempting to restore"
Anyone know why that code would cause that? Also any suggestions to fix?
you are on the right path but Parse doesn't use [AnyObject]? anymore in their new SDK so change to [PFObject]?
Example:
let objectIdQuery = PFQuery(className: "QuestionsandAnswers")
objectIdQuery.findObjectsInBackgroundWithBlock({
(objectsArray : [PFObject]?, error : NSError?) -> Void in
if error == nil
{
if let objects = objectsArray
{
for one in objects
{
let objectID = one.objectID //<--- objectID
// then append the objectID into your data structure
}
}
}
})
This is a common problem, basically parse updated their SDK
Just change
[AnyObject]? to [PFObject]?
Same problem here I think
PFArrayResultBlock(parse) is causing an error while converting to swift 2.0
I have Parse.enableLocalDatastore() in my app delegate before Parse.setApplicationId
Then I have var newPosts = PFObject(className: "Post") as a global variable.
Then I want to get 1,000 latest objects from the "Post" table from localDataStore that I enabled earlier so I do this:
var getNewPosts = PFQuery(className: "Post")
getNewPosts.fromLocalDatastore()
getNewPosts.limit = 1000
getNewPosts.orderByDescending("createdAt")
getNewPosts.findObjectsInBackgroundWithBlock {
(downloadedPosts, error) -> Void in
if downloadedPosts != nil && error == nil {
println(downloadedPosts) // I am getting table with no data
}
}
But I only get empty data rows.
If I comment out the getNewPosts.fromLocalDatastore() line results are fine.
I understand that I am missing the critical Pinning step but not sure from Parse documentation hoe and where to implement it. Can you please help?
You are getting no data....
reasons my be...
Wrong name of class (class names are case sensitive)
Data is not there in local storage
Try synchronous version of findObject: method and pin: method.
I updated to the latest version of Swift/XCode and a PFQuery in my app is generating an error: Value of optional type 'PFQuery?' not unwrapped. I know I could add a bang (!) but this only makes the error goes away. It doesn't actually fix the problem. The query used to return results before I upgraded. Here's the code in question:
PFGeoPoint.geoPointForCurrentLocationInBackground { (geopoint, error) -> Void in
println(error)
if error == nil {
println(geopoint)
if var user = PFUser.currentUser(){
user["location"] = geopoint
var query = PFUser.query()
query.whereKey("location", nearGeoPoint:geopoint) //error on this line
query.limit = 10
query.findObjectsInBackgroundWithBlock({ (users, error) -> Void in
Instead of simply making it query!.whereKey(etc) what's the best way to fix this?
Thanks!
Thank you for asking, as it is all too tempting just to force-unwrap. Do it like this:
if var query = PFUser.query() {
query.whereKey("location", nearGeoPoint:geopoint)
// ... and so on
}
(It is odd that you do not know this, since you are doing it correctly just two lines before with PFUser.currentUser(). A case of the left brain not knowing what the right brain is doing?)