federicomazzini

Keybase proof

I hereby claim:

• I am federicomazzini on github.
• I am federicodaniel (https://keybase.io/federicodaniel) on keybase.
• I have a public key ASBAWFiI81fEAVqC6rcvrCzVteYETsGSxeTLTnZOhhGy0Ao

To claim this, I am signing this object:

federicomazzini

import Foundation

class ShadowCastingManager {
    static let sharedInstance = ShadowCastingManager()
    
    var startSlope : Double = 1.0
    
    var multipliers = [
        [1, 0, 0, -1, -1, 0, 0, 1],
        [0, 1, -1, 0, 0, -1, 1, 0],

federicomazzini

import Darwin.ncurses

federicomazzini

let fetchRequest = NSFetchRequest(entityName: "Example")
let sortDescriptor = NSSortDescriptor(key: "date", ascending: true)
let sortDescriptors = [sortDescriptor]
fetchRequest.sortDescriptors = sortDescriptors

federicomazzini

saveContext()

let newItem = NSEntityDescription.insertNewObjectForEntityForName("ExampleItem", inManagedObjectContext: self.managedObjectContext!) as! ExampleItem
newItem.title = "Wrote Core Data Tutorial"

managedObjectContext.deleteObject(exampleObject)
saveContext()

federicomazzini

print(NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask))

federicomazzini

import Foundation
import CoreData

@objc(Event)

class Example : NSManagedObject {
    
    @NSManaged var id                    : String?
    @NSManaged var exampleDate           : NSDate?
    @NSManaged var exampleNumber         : Int32

federicomazzini

//inside any view controller

lazy var fetchedResultsController: NSFetchedResultsController = {
  let examplesFetchRequest = NSFetchRequest(entityName: "Example")
        
  let frc = NSFetchedResultsController(
  fetchRequest: examplesFetchRequest,
  managedObjectContext: self.context, //if you keep a Managed Object Context inside your view controller
  sectionNameKeyPath: nil,
  cacheName: nil)

federicomazzini

// Create request on Event entity
let fetchRequest = NSFetchRequest(entityName: "ExampleEntity")
var fetchedResults = [NSObject]()
//Execute Fetch request
do {
    fetchedResults = try  managedObjectContext.executeFetchRequest(fetchRequest) as! [ExampleEntity]
} catch let fetchError as NSError {
    print("retrieveById error: \(fetchError.localizedDescription)")
}
        

federicomazzini

import UIKit
import CoreData

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {