詰まっている箇所(updateWithNameのNSPredicateで実行時例外)

CheckItemManager.swift

//
//  CheckItemManager.swift
//  KadaiCheck
//

import UIKit
import CoreData

class CheckItemManager: NSObject {
    
    //Managerクラス
    //役割
    //Entityと通してCoreDataからデータを取得するSQL発行の役割
    //返却する際はEntity, [Entity]で返す
    
    //AppDelegateの初期設定
    private var appDelegate = UIApplication.sharedApplication().delegate as? AppDelegate
    
    private var managedContext: NSManagedObjectContext?
    private var entity: NSEntityDescription?
    
    //エンティティー名の設定
    private let entityName: String = "CheckItem"
    
    //initで起動オブジェクトの設定
    override init(){
        if let
            localManagedContext = appDelegate!.managedObjectContext,
            localEntity = NSEntityDescription.entityForName(entityName, inManagedObjectContext: localManagedContext)
        {
            self.managedContext = localManagedContext
            self.entity = localEntity
        }
    }
    
    //データ追加処理
    //引数で追加データを渡して、内部で登録処理実施
    func insert(id: Int16, name: String, isCheck: Bool){
        if let itemObject = NSManagedObject(entity: self.entity!, insertIntoManagedObjectContext: managedContext) as? CheckItem {
            
            itemObject.id = id
            itemObject.name = name
            itemObject.isCheck = isCheck
            
            var error: NSError?
            if !managedContext!.save(&error) {
                println("保存に失敗...")
            }else{
                println("保存に成功！")
            }
        }
    }
    
    func insertAll(){
        
    }
    
    //データ更新処理
    //1件に対して更新処理実施
    //idに一致するレコードのみ更新する
    func updateWithName(id: Int16, name: String, isCheck: Bool){
        var fetchRequest = NSFetchRequest(entityName: self.entityName)
        var error: NSError?
        fetchRequest.predicate = NSPredicate(format: "id = %@", id)
        
        let fetchResults = managedContext!.executeFetchRequest(fetchRequest, error: &error)
        
        if let results = fetchResults as? [CheckItem] {
            
            for obj in results {
                obj.name = name
                obj.isCheck = isCheck
            }
            
            if !managedContext!.save(&error) {
                println("更新に失敗...")
            }else{
                println("更新に成功！")
            }
            
        }
        
    }
    
    //データ検索処理
    //全件データを読み込んで表示
    //こちらも削除のNSPredicateを参考にして、検索処理は実装する
    func selectAllData() -> [CheckItem]?{
        let fetchRequest = NSFetchRequest(entityName: self.entityName)
        var error: NSError?
        
        let fetchResults = managedContext!.executeFetchRequest(fetchRequest, error: &error)
        if let results = fetchResults as? [CheckItem] {
            for obj in results {
                println("id = \(obj.id), name = \(obj.name), isCheck = \(obj.isCheck)")
            }
            
            return results
        } else {
            return nil
        }
        
    }
    
    //対象データを検索して返却
    func selectDataWithId(id: Int16) -> [CheckItem]?{
        let fetchRequest = NSFetchRequest(entityName: self.entityName)
        var error: NSError?
        
        fetchRequest.predicate = NSPredicate(format: "id = %@", id)
        
        let fetchResults = managedContext!.executeFetchRequest(fetchRequest, error: &error)
        if let results = fetchResults as? [CheckItem] {
            for obj in results {
                println("id = \(obj.id), name = \(obj.name), isCheck = \(obj.isCheck)")
            }
            return results
        } else {
            return nil
        }
        
    }
    
    
    
    //データ削除処理
    //検索して削除している。参考にするならここ！
    func deleteWhereId(id : Int16){
        let fetchRequest = NSFetchRequest(entityName: self.entityName)
        
        fetchRequest.predicate = NSPredicate(format: "id == %@", id)
        
        var error: NSError?
        let fetchResults = managedContext!.executeFetchRequest(fetchRequest, error: &error)
        
        if let results = fetchResults as? [NSManagedObject] {
            for obj in results {
                managedContext!.deleteObject(obj)
            }
        }
        
        if !managedContext!.save(&error) {
            println("削除に失敗...")
        }else{
            println("削除に成功！")
        }
        
    }
    
    //全データ削除処理
    func deleteAll(){
        let fetchRequest = NSFetchRequest(entityName: self.entityName)
        
        var error: NSError?
        let fetchResults = managedContext!.executeFetchRequest(fetchRequest, error: &error)
        
        if let results = fetchResults as? [NSManagedObject] {
            for obj in results {
                managedContext!.deleteObject(obj)
            }
        }
        
        if !managedContext!.save(&error) {
            println("削除に失敗...")
        }else{
            println("削除に成功！")
        }
        
    }
    
    func updateAllSeqId(){
        let fetchRequest = NSFetchRequest(entityName: self.entityName)
        var error: NSError?
        
        let fetchResults = managedContext!.executeFetchRequest(fetchRequest, error: &error)
        
        if let results = fetchResults as? [CheckItem] {
            
            for (index, obj) in enumerate(results) {
                obj.id = Int16(index)
            }
            
            if !managedContext!.save(&error) {
                println("更新に失敗...")
            }else{
                println("更新に成功！")
            }
            
        }

    }
    
    
}