266 lines
9.5 KiB
Swift
266 lines
9.5 KiB
Swift
//
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// CheatsViewController.swift
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// Delta
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//
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// Created by Riley Testut on 5/20/16.
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// Copyright © 2016 Riley Testut. All rights reserved.
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//
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import UIKit
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import CoreData
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import DeltaCore
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import Roxas
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protocol CheatsViewControllerDelegate: class
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{
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func cheatsViewControllerActiveGame(saveStatesViewController: CheatsViewController) -> Game
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func cheatsViewController(cheatsViewController: CheatsViewController, didActivateCheat cheat: Cheat) throws
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func cheatsViewController(cheatsViewController: CheatsViewController, didDeactivateCheat cheat: Cheat) throws
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}
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class CheatsViewController: UITableViewController
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{
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weak var delegate: CheatsViewControllerDelegate! {
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didSet {
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self.updateFetchedResultsController()
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}
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}
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private var backgroundView: RSTBackgroundView!
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private var fetchedResultsController: NSFetchedResultsController!
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}
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extension CheatsViewController
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{
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override func viewDidLoad()
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{
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super.viewDidLoad()
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self.title = NSLocalizedString("Cheats", comment: "")
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self.backgroundView = RSTBackgroundView(frame: self.view.bounds)
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self.backgroundView.hidden = false
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self.backgroundView.autoresizingMask = [.FlexibleWidth, .FlexibleHeight]
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self.backgroundView.textLabel.text = NSLocalizedString("No Cheats", comment: "")
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self.backgroundView.textLabel.textColor = UIColor.whiteColor()
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self.backgroundView.detailTextLabel.text = NSLocalizedString("You can add a new cheat by pressing the + button in the top right.", comment: "")
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self.backgroundView.detailTextLabel.textColor = UIColor.whiteColor()
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self.tableView.backgroundView = self.backgroundView
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}
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override func viewWillAppear(animated: Bool)
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{
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self.fetchedResultsController.performFetchIfNeeded()
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self.updateBackgroundView()
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super.viewWillAppear(animated)
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}
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override func didReceiveMemoryWarning()
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{
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super.didReceiveMemoryWarning()
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// Dispose of any resources that can be recreated.
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}
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}
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private extension CheatsViewController
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{
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//MARK: - Update -
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func updateFetchedResultsController()
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{
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let game = self.delegate.cheatsViewControllerActiveGame(self)
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let fetchRequest = Cheat.fetchRequest()
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fetchRequest.returnsObjectsAsFaults = false
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fetchRequest.predicate = NSPredicate(format: "%K == %@", Cheat.Attributes.game.rawValue, game)
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fetchRequest.sortDescriptors = [NSSortDescriptor(key: Cheat.Attributes.name.rawValue, ascending: true)]
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self.fetchedResultsController = NSFetchedResultsController(fetchRequest: fetchRequest, managedObjectContext: DatabaseManager.sharedManager.managedObjectContext, sectionNameKeyPath: nil, cacheName: nil)
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self.fetchedResultsController.delegate = self
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}
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func updateBackgroundView()
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{
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if let fetchedObjects = self.fetchedResultsController.fetchedObjects where fetchedObjects.count > 0
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{
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self.tableView.separatorStyle = .SingleLine
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self.backgroundView.hidden = true
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}
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else
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{
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self.tableView.separatorStyle = .None
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self.backgroundView.hidden = false
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}
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}
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}
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//MARK: - Managing Cheats -
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/// Managing Cheats
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private extension CheatsViewController
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{
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@IBAction func addCheat()
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{
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let backgroundContext = DatabaseManager.sharedManager.backgroundManagedObjectContext()
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backgroundContext.performBlock {
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var game = self.delegate.cheatsViewControllerActiveGame(self)
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game = backgroundContext.objectWithID(game.objectID) as! Game
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let cheat = Cheat.insertIntoManagedObjectContext(backgroundContext)
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cheat.game = game
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cheat.name = "Unlimited Jumps"
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cheat.code = "3E2C-AF6F"
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cheat.type = .gameGenie
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do
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{
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try self.delegate.cheatsViewController(self, didActivateCheat: cheat)
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backgroundContext.saveWithErrorLogging()
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}
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catch EmulatorCore.CheatError.invalid
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{
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dispatch_async(dispatch_get_main_queue()) {
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let alertController = UIAlertController(title: NSLocalizedString("Invalid Cheat", comment: ""), message: NSLocalizedString("Please make sure you typed the cheat code in correctly and try again.", comment: ""), preferredStyle: .Alert)
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alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: ""), style: .Default, handler: nil))
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self.presentViewController(alertController, animated: true, completion: nil)
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}
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print("Invalid cheat:", cheat.name, cheat.code)
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}
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catch let error as NSError
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{
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print("Unknown Cheat Error:", error, cheat.name, cheat.code)
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}
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}
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}
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func deleteCheat(cheat: Cheat)
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{
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let _ = try? self.delegate.cheatsViewController(self, didDeactivateCheat: cheat)
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let backgroundContext = DatabaseManager.sharedManager.backgroundManagedObjectContext()
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backgroundContext.performBlock {
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let temporaryCheat = backgroundContext.objectWithID(cheat.objectID)
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backgroundContext.deleteObject(temporaryCheat)
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backgroundContext.saveWithErrorLogging()
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}
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}
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}
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//MARK: - Content -
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/// Content
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private extension CheatsViewController
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{
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func configure(cell cell: UITableViewCell, forIndexPath indexPath: NSIndexPath)
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{
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let cheat = self.fetchedResultsController.objectAtIndexPath(indexPath) as! Cheat
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cell.textLabel?.text = cheat.name
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cell.textLabel?.font = UIFont.boldSystemFontOfSize(cell.textLabel!.font.pointSize)
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cell.accessoryType = cheat.enabled ? .Checkmark : .None
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}
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}
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extension CheatsViewController
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{
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// MARK: - Table view data source
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override func numberOfSectionsInTableView(tableView: UITableView) -> Int
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{
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let numberOfSections = self.fetchedResultsController.sections!.count
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return numberOfSections
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}
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override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
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{
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let section = self.fetchedResultsController.sections![section]
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return section.numberOfObjects
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}
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override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
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{
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let cell = tableView.dequeueReusableCellWithIdentifier(RSTGenericCellIdentifier, forIndexPath: indexPath)
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self.configure(cell: cell, forIndexPath: indexPath)
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return cell
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}
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}
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extension CheatsViewController
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{
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override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
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{
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let cheat = self.fetchedResultsController.objectAtIndexPath(indexPath) as! Cheat
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let backgroundContext = DatabaseManager.sharedManager.backgroundManagedObjectContext()
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backgroundContext.performBlockAndWait {
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let temporaryCheat = backgroundContext.objectWithID(cheat.objectID) as! Cheat
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temporaryCheat.enabled = !temporaryCheat.enabled
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do
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{
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if temporaryCheat.enabled
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{
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try self.delegate.cheatsViewController(self, didActivateCheat: temporaryCheat)
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}
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else
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{
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try self.delegate.cheatsViewController(self, didDeactivateCheat: temporaryCheat)
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}
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}
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catch EmulatorCore.CheatError.invalid
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{
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print("Invalid cheat:", cheat.name, cheat.code)
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}
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catch EmulatorCore.CheatError.doesNotExist
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{
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print("Cheat does not exist:", cheat.name, cheat.code)
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}
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catch let error as NSError
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{
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print("Unknown Cheat Error:", error, cheat.name, cheat.code)
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}
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backgroundContext.saveWithErrorLogging()
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}
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self.tableView.reloadRowsAtIndexPaths([indexPath], withRowAnimation: .None)
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}
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override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]?
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{
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let deleteAction = UITableViewRowAction(style: .Destructive, title: NSLocalizedString("Delete", comment: "")) { (action, indexPath) in
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let cheat = self.fetchedResultsController.objectAtIndexPath(indexPath) as! Cheat
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self.deleteCheat(cheat)
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}
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let editAction = UITableViewRowAction(style: .Normal, title: NSLocalizedString("Edit", comment: "")) { (action, indexPath) in
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}
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return [deleteAction, editAction]
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}
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override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath)
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{
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// This method intentionally left blank because someone decided it was a Good Idea™ to require this method be implemented to use UITableViewRowActions
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}
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}
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//MARK: - <NSFetchedResultsControllerDelegate> -
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extension CheatsViewController: NSFetchedResultsControllerDelegate
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{
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func controllerDidChangeContent(controller: NSFetchedResultsController)
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{
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self.tableView.reloadData()
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self.updateBackgroundView()
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}
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}
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