Looping Core Data Objects outside a Table/ Collection View - swift

Question

I want to loop through the objects in CoreData without using a tableView or CollectionView... But using a ViewController
I tried something like:
for var i = 0; i < numberOfExerciseItems; i++ {
let exerciseItemsfromDay = fetchedResultController.objectAtIndexPath(i) as! ExerciseItemModel
}
This obviously doesn't work since it is not of NSIndexPath type as you'd get in a table or CollectionView. Are there ways to do this outside a Table / Collection View? Thanks for the ideas in advance.
Edit
From this answer, I'd want to access an entity from an item in the items array in the loop :
let request = NSFetchRequest(entityName: "ExerciseItemModel")
let items = (try? context.executeFetchRequest(request)) as? [ExerciseItemModel] ?? []
In this loop
items.forEach {
print(items) //Displays all the objects in the console.
print(items[1].attribute //Throws the error Value of type'AnyObject' has no member 'attribute' and I cannot access an attribute from the items array . Not sure why!
}
Edit My ExerciseModel Class
import Foundation
import CoreData
#objc(ExerciseItemModel)
class ExerciseItemModel: NSManagedObject {
// Insert code here to add functionality to your managed object subclass
}
extension ExerciseItemModel {
#NSManaged var exerciseType: String?
#NSManaged var exerciseName: String?
#NSManaged var durationOrSets: String?
#NSManaged var distanceOrReps: String?
#NSManaged var weight: String?
#NSManaged var backgroundImage: NSData?
#NSManaged var dayID: String?
#NSManaged var date: NSDate?
}

Answer 1

let request = NSFetchRequest(entityName: "ExerciseItemModel")
let items = (try? context.executeFetchRequest(request)) as? [ExerciseItemModel] ?? []
items.forEach {
// Do your stuff
}
A small example. Not exactly an answer so I'll delete it when a proper answer has been posted. This example will not show you any error messages if there are any, just keep that in mind.
Edit:
You're using forEach() incorrectly:
items.forEach {
print($0) // Print's the object in items
print($0.attribute) // Should print the attribute
}
print(items[0].attribute) // Probably same error, but it should be used outside the loop