CODEWITHSUNDEEP
iosswiftsortingdate
Mr. Mioio
Mr. Mioio

Reputation: 21

swift 3 this class is not key value coding-compliant for the key startDate

I'm getting this error in line/code that I'm using to return a grouped events. I read a lot of this error, but found only posts that explains this error about buttons, text labels or views. Is it wrong syntax or what? 

class someManager: NSObject {

  func eventFrom(from startDate: NSDate, to endDate: NSDate) -> [Any] {

    let groupedEvents = NSMutableArray()  
      // some code

    let sortDescriptor = NSSortDescriptor.init(key: "startDate", ascending: true)
    return groupedEvents.sortedArray(using: [sortDescriptor]) // error here
  }
}

*/
@property(nonatomic, copy) NSDate *startDate;
// cmd + press on startDate
/*

Full error message:

Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[AppName.EventListController 0x170225340 valueForUndefinedKey:]: this class is not key value coding-compliant for the key startDate.'

All EventListController:

    class EventListController: NSObject {

    var AstartDate = Date()
    var Aevents = NSArray()

}

Upvotes: 0

Views: 504

Answers (1)

Adolfo
Adolfo

Reputation: 1862

I think that your mutable array contains object of NSDate type. If you want to sort this array you can apply the sort function from Array Swift class

var groupEvent: [Date] = [ Date() ]

groupEvent.sort(by: { $0 < $1 })

or 

groupEvent.sort()

Upvotes: 1

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