Add examples

AppNet/AppDelegate.swift

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+import UIKit
+import CoreData
+import DATAStack
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+  var window: UIWindow?
+  lazy var dataStack: DATAStack = DATAStack()
+
+  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
+    application.setStatusBarStyle(UIStatusBarStyle.LightContent, animated: true)
+
+    let appearance = UINavigationBar.appearance()
+    appearance.barTintColor = UIColor(red:0.83, green:0.43, blue:0.36, alpha:1)
+    appearance.titleTextAttributes = [NSFontAttributeName : UIFont(name: "AvenirNext-DemiBold", size: 20)!,
+                                      NSForegroundColorAttributeName : UIColor.whiteColor()]
+
+    window = UIWindow(frame: UIScreen.mainScreen().bounds)
+
+    let initialViewController = ViewController(dataStack: dataStack)
+
+    window?.rootViewController = UINavigationController(rootViewController: initialViewController)
+    window?.makeKeyAndVisible()
+
+    return true
+  }
+
+  func applicationWillTerminate(application: UIApplication) {
+    dataStack.persistWithCompletion(nil)
+  }
+}
+

AppNet/AppNet.xcdatamodeld/.xccurrentversion

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>_XCCurrentVersionName</key>
+	<string>AppNet.xcdatamodel</string>
+</dict>
+</plist>

AppNet/AppNet.xcdatamodeld/AppNet.xcdatamodel/contents

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+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<model userDefinedModelVersionIdentifier="" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="6751" systemVersion="14D105g" minimumToolsVersion="Automatic" macOSVersion="Automatic" iOSVersion="Automatic">
+    <entity name="Data" representedClassName="Data" syncable="YES">
+        <attribute name="createdAt" optional="YES" attributeType="Date" syncable="YES"/>
+        <attribute name="remoteID" optional="YES" attributeType="String" syncable="YES"/>
+        <attribute name="text" optional="YES" attributeType="String" syncable="YES"/>
+        <relationship name="user" optional="YES" maxCount="1" deletionRule="Nullify" destinationEntity="User" inverseName="data" inverseEntity="User" syncable="YES"/>
+    </entity>
+    <entity name="User" representedClassName="User" syncable="YES">
+        <attribute name="name" optional="YES" attributeType="String" syncable="YES"/>
+        <attribute name="remoteID" optional="YES" attributeType="String" syncable="YES"/>
+        <attribute name="username" optional="YES" attributeType="String" syncable="YES"/>
+        <relationship name="data" optional="YES" toMany="YES" deletionRule="Nullify" destinationEntity="Data" inverseName="user" inverseEntity="Data" syncable="YES"/>
+    </entity>
+    <elements>
+        <element name="Data" positionX="-63" positionY="-18" width="128" height="103"/>
+        <element name="User" positionX="-54" positionY="18" width="128" height="103"/>
+    </elements>
+</model>

AppNet/Assets.xcassets/AppIcon.appiconset/Contents.json

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+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "29x29",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "40x40",
+      "scale" : "3x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "iphone",
+      "size" : "60x60",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

AppNet/Base.lproj/LaunchScreen.storyboard

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="8150" systemVersion="15A204g" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="8122"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Llm-lL-Icb"/>
+                        <viewControllerLayoutGuide type="bottom" id="xb3-aO-Qok"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <animations/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

AppNet/Data.swift

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+import Foundation
+import CoreData
+
+@objc(Data)
+
+class Data: NSManagedObject {
+
+  @NSManaged var text: String
+  @NSManaged var remoteID: String
+  @NSManaged var createdAt: NSTimeInterval
+  @NSManaged var user: User
+
+}

AppNet/Info.plist

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

AppNet/Networking.swift

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+import UIKit
+import DATAStack
+import Sync
+
+class Networking {
+  let AppNetURL = "https://api.app.net/posts/stream/global"
+  let dataStack: DATAStack
+
+  required init(dataStack: DATAStack) {
+    self.dataStack = dataStack
+  }
+
+  func fetchItems(completion: (NSError?) -> Void) {
+
+    if let urlAppNet = NSURL(string: AppNetURL) {
+      let request = NSURLRequest(URL: urlAppNet)
+      let operationQueue = NSOperationQueue()
+
+      NSURLConnection.sendAsynchronousRequest(request, queue: operationQueue) { [unowned self] _, data, error in
+        if let data = data, json = (try? NSJSONSerialization.JSONObjectWithData(data,
+          options: NSJSONReadingOptions.MutableContainers)) as? Dictionary<String, AnyObject> {
+            Sync.changes(json["data"] as! Array,
+              inEntityNamed: "Data",
+              dataStack: self.dataStack,
+              completion: { error in
+                completion(error)
+            })
+        } else {
+          completion(error)
+        }
+      }
+    }
+  }
+}

AppNet/README.md

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+## App
+
+[Reference (Swift)](https://github.com/hyperoslo/Sync/tree/master/Examples/AppNet)
+
+![Model](https://raw.githubusercontent.com/hyperoslo/Sync/master/Examples/AppNet/Images/app.png)
+
+## JSON
+
+[Reference](https://api.app.net/posts/stream/global)
+
+```json
+{
+  "meta":{
+    "min_id":"57030525",
+    "code":200,
+    "max_id":"57030547",
+    "more":true
+  },
+  "data":[
+    {
+      "created_at":"2015-04-06T15:07:06Z",
+      "text":"Hello World!",
+      "id":"57030547",
+      "user":{
+        "username":"albarjeel1",
+        "created_at":"2015-03-28T13:01:31Z",
+        "id":"347326"
+      }
+    }
+  ]
+}
+```
+
+## Model
+
+![Model](https://raw.githubusercontent.com/hyperoslo/Sync/master/Examples/AppNet/Images/model.png)
+
+## Sync
+
+[Reference](https://github.com/hyperoslo/Sync/blob/master/Examples/AppNet/AppNet/Networking.swift#L32-L34)
+
+```swift
+Sync.changes(
+    json["data"] as Array,
+    inEntityNamed: "Data",
+    dataStack: self.dataStack,
+    completion: { error in
+        completion()
+    }
+)
+```

AppNet/User.swift

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+import Foundation
+import CoreData
+
+@objc(User)
+
+class User: NSManagedObject {
+
+  @NSManaged var name: String
+  @NSManaged var remoteID: String
+  @NSManaged var username: String
+  @NSManaged var data: NSSet
+
+}

AppNet/ViewController.swift

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+import UIKit
+import DATAStack
+import CoreData
+
+class ViewController: UITableViewController {
+  let CellIdentifier = "CellID"
+
+  let dataStack: DATAStack
+  lazy var networking: Networking = { [unowned self] in Networking(dataStack: self.dataStack) }()
+  var items = [Data]()
+
+  // MARK: Initializers
+
+  required init(dataStack: DATAStack) {
+    self.dataStack = dataStack
+    super.init(nibName: nil, bundle: nil);
+  }
+
+  required init!(coder aDecoder: NSCoder) {
+    fatalError("init(coder:) has not been implemented")
+  }
+
+  // MARK: View Lifecycle
+
+  override func viewDidLoad() {
+    super.viewDidLoad()
+
+    title = "AppNet"
+    tableView.registerClass(UITableViewCell.classForCoder(), forCellReuseIdentifier: CellIdentifier)
+
+    setUpRefreshControl()
+    fetchCurrentObjects()
+    fetchNewData()
+  }
+
+  func setUpRefreshControl() {
+    refreshControl = UIRefreshControl()
+    refreshControl?.addTarget(self, action: "fetchNewData", forControlEvents: .ValueChanged)
+  }
+
+  // MARK: Networking methods
+
+  func fetchNewData() {
+    networking.fetchItems { _ in
+      self.fetchCurrentObjects()
+
+      self.refreshControl?.endRefreshing()
+    }
+  }
+
+  // MARK: Model methods
+
+  func fetchCurrentObjects() {
+    let request = NSFetchRequest(entityName: "Data")
+    request.sortDescriptors = [NSSortDescriptor(key: "createdAt", ascending: true)]
+    items = (try! dataStack.mainContext.executeFetchRequest(request)) as! [Data]
+
+    tableView.reloadData()
+  }
+
+  override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+    return items.count
+  }
+
+  override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
+    let cell = self.tableView.dequeueReusableCellWithIdentifier(CellIdentifier)
+    let data = self.items[indexPath.row]
+    cell?.textLabel?.text = data.text
+
+    // Workaround: The proper value of `numberOfLines` should be 0
+    // but there's a weird bug that causes UITableView to go crazy
+    cell?.textLabel?.numberOfLines = 1
+    cell?.detailTextLabel?.text = data.user.username
+
+    return cell!
+  }
+}