CODEWITHSUNDEEP
iosswiftcore-data
AyAz
AyAz

Reputation: 2057

Fetching From CoreData returns AnyObject

I am Fetching Entity Data From coreData, That returns AnyObject, I tried A lot to convert in NSDictionary and NSArray but it Can not cast any type.` 

    var dictData:NSDictionary?
    let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
    let context = appDelegate.managedObjectContext;
    // self.selectedArray = response.objectForKey("retailers") as! NSArray;
    let fetchRequest2 = NSFetchRequest()
    let entityDescription2 = NSEntityDescription.entityForName("Offers", inManagedObjectContext: context)
    fetchRequest2.entity  = entityDescription2

    //fetchRequest2.returnsObjectsAsFaults = false

    do {
        let result2 : NSDictionary = try context.executeFetchRequest(fetchRequest2) as! NSDictionary
                   print("Result:",result2)
        for result in (result2 as? NSDictionary)!{

            if let data : NSDictionary = result as? NSDictionary{

                print(data)
            }

Offer Entity contains No Of fields. Kindly Help. It Will Be Appreciated. 

                print("result: ",result)
                print("dictData:",dictData)

` }

Upvotes: 3

Views: 917

Answers (2)

vadian
vadian

Reputation: 285064

According to its signature executeFetchRequest returns always an array of AnyObject. AnyObject, because the return value can be NSManagedObject or Dictionary depending on the fetch request.

The default return value is a non-optional [NSManagedObject] so write

let result2 = try context.executeFetchRequest(fetchRequest2) as! [NSManagedObject]

the forced unwrapping of the type is safe is this case, there's no need of optional bindings.

If you are using a subclass of NSManagedObject you can even cast the return value to that type.

Upvotes: 1

sschale
sschale

Reputation: 5188

context.executeFetchRequest() returns [AnyObject], not AnyObject.

You need to do:

if let results = context.executeFetchRequest(fetchRequest2) as? [MyObjectType] {
      for object in results {
        //do thing
    }
  }

Upvotes: 5

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