Check if name attribute already exists in CoreData

Question

I have an entity called BankInfo, and one of its parameters is name which is a string. I\'m just wondering, is there a way in CoreData

Answer 1

For Swift 5 use the below code, it similar to one of the upvoted answers, the only difference being use context.count instead of managedContext.count

              let request : NSFetchRequest = MachineTypeTolerance.fetchRequest()
            let predicate = NSPredicate(format: "machineType = %@", type)
            request.predicate = predicate
            request.fetchLimit = 1

            do{
                let count = try context.count(for: request) 
//instead of managedContext use context, where let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
    
                if(count == 0){
                print("no matches")
                }
                else{
                print("match found")
                }
              }
            catch let error as NSError {
                 print("Could not fetch \(error), \(error.userInfo)")