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CoreData (NSPredicate)

jeanid last edited by
We need to filter Baz and show only those cells that were altered less than a minute ago.
When the cell is updated, I'm changing her parameter.
```
mapPoint["lastUpdate"] = NSDate()
```
Tell me how to do NSPredicate.
```
let fetchRequest = NSFetchRequest(entityName: "MapPoint")
let startInterval = NSDate(timeIntervalSinceNow: -60).timeIntervalSince1970
fetchRequest.predicate = NSPredicate(format:"lastUpdate > %@", startInterval)
```
That way doesn't work. ♪ ♪
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fbio last edited by

You're comparing. NSDate c NSTimeInterval(i mean.) Double)
Either keep it. NSTimeIntervalor NSPredicate compare dates.
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Software Programming • ios swift xcode objective c • • inna

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I won't say how good it is, but in this case, use the regulars.predicateWithFormat:@"title CONTAINS[c] %@" Substitution predicateWithFormat:@"title MATCHES [cd] %@" And what you're looking for is:@"^(.*?)[иі]мя(.*?)" As an example for rapid verification:NSString *name = @"Это имя Иван"; NSString *searchText = @"^(.*?)[иі]ван(.*?)"; NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES [cd] %@", searchText]; NSLog(@"содержит: %d", [predicate evaluateWithObject:name]);
New news in CoreData
Software Programming • json ios objective c • • Marcee

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What about this:- (void)removeObjectsAtIndexes:(NSIndexSet *)indexes
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I want to saveCGPoint as it is in CoreData
Software Programming • swift3 • • guilherme

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If you write a conclusion about the subject of the title, like the text of the title and the question, directly in the entity classCGPointIt is impossible to have a type property.Only the type popup of the model editor can keep the core data entities internally. As you set, Trasnformable lets you say that class properties include other data types, and internally convert and retain supported data types. Transformable mechanism is a reference type (class) Only supported and not supported CommentAs an alternative,CGPointHomeNSValueHow do I convert and set it?NSValueHomeNSCodingContact UsValueTransformercan be used without writingCGPointHomeNSValueSimple bridge type conversionascast)Therefore, I think that it can be close to "save as it is".Model EditorcenterData Model Inspector Custom Class HomeNSValueset. (Transformation Home Module default. ) When you create a model class in this state,@NSManaged public var center: NSValue?You can write like this.newItem.center = center as NSValue When using it, it looks like this.let center: CGPoint = item.center as? CGPoint ?? CGPoint.zero asIf you say that even the cast is troublesome, you can add such computed properties.import Foundation import CoreGraphics extension Item { public var centerPoint: CGPoint { get { return center as? CGPoint ?? CGPoint.zero } set { center = newValue as NSValue } } } By the way, if there is a calculation type property,x, yHomeItemThere is also a hand that defines the computed property such as Double Attribute of entity.import Foundation import CoreData extension Item { @nonobjc public class func fetchRequest() -> NSFetchRequest<Item> { return NSFetchRequest<Item>(entityName: "Item") } @NSManaged public var x: Double @NSManaged public var y: Double @NSManaged public var title: String? } extension Item { public var center: CGPoint { get { return CGPoint(x: x, y: y) } set { x = Double(newValue.x) y = Double(newValue.y) } } } MorexHomeyIt may be convenient to use some properties in search conditions.I don’t even have stored propertiesx, yIt’s a good idea, but find the best way for you.(Note) un unognized selectorThe above code may not work well if you just need to need to modify the project where the error has occurred. )
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I want to search each element of the collection to match AND conditions
Software Programming • swift • • Kadir

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To write a condition that the object that is compared with each condition must be the same object, use the subquery as follows:let results = realm.objects(Person.self) .filter("SUBQUERY(dogs, $dog, $dog.name IN %@ && $dog.age <= %d).@count > 0", ["kuro", "pochi"], 3)
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Coredata and MapKit
Software Programming • objective c maps apple coredata • • Nykeriab

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First, you can't use a singlton as a thing. How to start working with core data - http://code.tutsplus.com/tutorials/iphone-core-data-your-first-steps--mobile-752 ;Secondly, these core data should be filled and preserved;In the third, create a characteristic in a counteraller that will store all points: @property (nonatomic, strong) NSMutableArray *mapPoints;Fourthly, we'll have to get acquainted with the map kit-- https://www.raywenderlich.com/21365/introduction-to-mapkit-in-ios-6-tutorial ♪ Having the essence of the coordinates, it's gonna be very simple on the map.Without the experience of work (a necessary theoretical minimum, at least) with core data, and with a map, unfortunately, just so you can do what you wrote, it won't work. If, after reading these two Tutorians, questions remain, come here in comments, to that answer, I'd love to help.
Data transfer from controller's interface (WatchKit)
Software Programming • swift xcode • • Bogopo

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Pressure in method didSelectRow Call:pushController(withName: ID, context: contex) Contex any structure♪ Model. Do as comfortable as you like a field with a data set.The second controller redefines the method:override func awake(withContext context: Any?) { super.awake(withContext: context) // получате объект guard let context = context as? YourContexClass else { return } } Then you'll reconfigure the table according to your data.
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About CoreData and Labeling in Swift
Software Programming • data • • obi

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In case-by-case, it is possible to give multiple classifications to one Todo,CategoryI think it is a common structure to create a new Entity and have it related to Todo.Of course, if the classification is always one,Todoas AttributescategoryIt is also good to have a string. Simple.However, it is common that I want to make multiple classifications after I became Attributes.Categoryto make Entity.When using CoreData, it is often better to make a flexible design because it is hardly written to condition Attributes, even if it is search condition for related Entity.For example, the actual class is:class Todos: NSManagedObject { @NSManaged var content: String @NSManaged var categories: NSSet } class Category: NSManagedObject { @NSManaged var name: String @NSManaged var todo: Todos }
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Why is nil returning for Int64?
Software Programming • json swift api xcode • • jules

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Check and compare a similar example that works well.func getAllClients() { let url = "https://jsonplaceholder.typicode.com/posts" // сервис для тестирования AF.request(url).responseJSON {response in let result = response.value if result != nil { let dataDictionary = result as! [Dictionary <String, AnyObject>] for clientsData in dataDictionary { let userId = clientsData["userId"] as? Int64 ?? 0 let id = clientsData["id"] as? Int64 ?? 0 assert(userId != 0 && id != 0) print(userId, id, "\n============") } } } } Check the values. clientsDatausing the stop point SupplementIf you have numerical values in the form of lines, you can do about that. AnyObject to the row and then to the numberlet userId = Int64(clientsData["userId"] as? String ?? "0")
How do you animate the Label text set?
Software Programming • swift animation • • Alberto

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Try this:extension UILabel { func animation(typing value: String, duration: Double){ for char in value { self.text?.append(char) RunLoop.current.run(until: Date() + duration) } } } And call in viewDidAppear, not in view DidLoad:override func viewDidAppear(_ animated: Bool) { super.viewDidAppear(animated) Label.text = "" Label.animation(typing: "Здесь много всякого разного текста.", duration: 0.1) }
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CoreData doesn't work for iOS8
Software Programming • ios database xcode orm coredata • • Anderson

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Magical Record isn't very capable, I wrote my lib to work with CoreData, doing great, the only thing that NSManagedObjects can't produce fast, or it's really bad. In general, there's no problem with CoreData in iOS 8 I didn't find. If it's interesting, I can throw my lib, for fetches, I took the Magical Record, the rest of it, because her problems were still on iOS 5, then I didn't. In principle, no way to move from Core Data, but in iOS 8, there's some interesting stuff like background fetching.Looked at your test project, found the problem:The CDSession class is already in the CoreDuet System Freamer.Look, he's fighting! I've had this once, I've had an EKEvent class in CoreData, and I've been in the same situation. Simply renamed classI, uh, renamed your class at the CDMSession now, and everything's right on the motto.
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Push notification using mobile backend on Swift3.0
Software Programming • swift • • Pearlaqua

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Did you check whether the "Method to be called when the device。 is obtained" is called? If the processing that should be moved is not working at all, check whether the device is registered in the installation of the data store and write the information in the question sentence.Always check the latest reference whenever an unsolicited error occurs in the transition to Swift3. https://developer.apple.com/reference/uikit/uiapplicationdelegate/1622958-application Declarationoptional func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) It is hard to notice,application:Before_Contact Us In Swift 3, the parameter at the beginning of the method function has a parameter label (ex。 name), so it is necessary to explicitly indicate that there is no label in the first parameter.The second parameter data typeData Please be careful not to miss this difference.Method declarationprivate修飾ifier To solve the warning, just follow Xcode’s undeniable sajesn, but remember the basics of the Swift language and know what the modifier is doing.privateAdding the declaration indicates that the declaration does not appear outside the scope (in case of method declaration). Therefore, even if the above modification is made, the method will not be called from iOS.The header part of your method will look like this if you define two things above. func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data){ Contact Us
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If you lower the alpha of the view in Base, the view on the top will be transmitted together
Software Programming • ios swift objec languagetive c lang • • magpie

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I think that the alpha of the view on the base remains 1.0 and the alpha of the background color of the view is set to 0.7.
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Role Entity in Annex with Core Data
Software Programming • ios objective c coredata • • derk

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Use just different contexts. And that would be the right way out of the situation in a multidimensional annex. Contexes also have changes. They can thus be used to support always up-to-date data. Read the official records of the work on the http://developer.apple.com/library/ios/#documentation/cocoa/conceptual/CoreData/Articles/cdConcurrency.html It's very useful.
E

Initiation CoreData Stack
Software Programming • objective c coredata • • emran

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In order to initiate readonly, you will have to turn directly to the very variable that your character represents:_persistentContainer = [[NSPersistentContainer alloc] initWithName:@"DataModel"]; [_persistentContainer loadPersistentStoresWithCompletionHandler:^(NSPersistentStoreDescription *description, NSError *error) { if (error != nil) { NSLog(@"Failed to load Core Data stack: %@", error); abort(); } callback(); }]; Now, about splitting the code on the interface and implementation. I would have done this headline with the expansion of "*.h."#import <Foundation/Foundation.h> #import <CoreData/CoreData.h> typedef void(^CallbackBlock)(void); @interface MyDataController : NSObject @property (strong, nonatomic, readonly) NSPersistentContainer *persistentContainer; (id)initWithCompletionBlock:(CallbackBlock)callback; @end And implementation would do that (other words, the contents of the file with expansion of "*.m"):#import "MyDataController.h" @implementation MyDataController (id)initWithCompletionBlock:(CallbackBlock)callback; { self = [super init]; if (!self) return nil; _persistentContainer = [[NSPersistentContainer alloc] initWithName:@"DataModel"]; [_persistentContainer loadPersistentStoresWithCompletionHandler:^(NSPersistentStoreDescription *description, NSError *error) { if (error != nil) { NSLog(@"Failed to load Core Data stack: %@", error); abort(); } callback(); }]; return self; } @end
Swift task. Annex
Software Programming • swift • • jeanid

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Like that!let targetLowerBound = 120 // нижний предел let targetUpperBound = 150 // верхний предел var isInTarget = true var isBelowTarget = true var isAboveTarget = true func getUserStatus(_ currentHR: Int) -> String { var userStatus: String = "" if currentHR >= targetUpperBound { isInTarget = false isBelowTarget = false isAboveTarget = true userStatus = "Слишком быстро! Замедлитесь." } else if currentHR <= targetLowerBound { isInTarget = false isBelowTarget = true isAboveTarget = false userStatus = "Вы всё делаете правильно, но попробуйте немного ускориться!" } else { isInTarget = true isBelowTarget = false isAboveTarget = false userStatus = "Вы двигаетесь в правильном темпе!" } return userStatus } class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() let currentHR = 147 // текущий пульс let textForUser = UILabel() textForUser.text = getUserStatus(currentHR) } } I don't see the need in the boilers here, but still)

CoreData (NSPredicate)

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