JulesMoorhouse · March 29, 2020 20:27 · Mar 29, 2020 · Mar 29, 2020 · Mar 29, 2020 · Mar 29, 2020
diff --git a/AppDelegate.swift b/AppDelegate.swift
@@ -1,3 +1,4 @@
+lazy var managedObjectModel: NSManagedObjectModel = {
   let modelURL =
     NSBundle.mainBundle().URLForResource("myDevices", withExtension: "Momd")!
   return NSManagedObjectModel(contentsOfURL: modelURL)!

diff --git a/DeviceDetailTableViewController.swift b/DeviceDetailTableViewController.swift
@@ -8,7 +8,7 @@ class DeviceDetailTableViewController: UITableViewController {
 
     @IBOutlet weak var nameTextField: UITextField!
     @IBOutlet weak var deviceTypeTextField: UITextField!
-    @IBOutlet weak var deviceOwnerTextField: UITextField!
+    @IBOutlet weak var deviceOwnerLabel: UILabel!
 
     override func viewWillAppear(animated: Bool) {
       super.viewWillAppear(animated)

diff --git a/DeviceDetailTableViewController.swift b/DeviceDetailTableViewController.swift
@@ -16,6 +16,12 @@ class DeviceDetailTableViewController: UITableViewController {
       if let device = device {
         nameTextField.text = device.name
         deviceTypeTextField.text = device.deviceType
+
+        if let owner = device.owner {
+            deviceOwnerLabel.text = "Device owner: \(owner.name)"
+        } else {
+            deviceOwnerLabel.text = "set device owner"
+        }
       }
     }
 
@@ -29,6 +35,7 @@ class DeviceDetailTableViewController: UITableViewController {
                     device = Device(entity: entity, insertIntoManagedObjectContext:
                         managedObjectContext)
                     device?.name = name
+                    device?.deviceType = deviceType
             }
         }
     }
@@ -41,6 +48,8 @@ class DeviceDetailTableViewController: UITableViewController {
                 PeopleTableViewController {
 
                     // more personPicker setup code here
+                    personPicker.pickerDelegate = self
+                    personPicker.selectedPerson = device?.owner
 
                     navigationController?.pushViewController(personPicker, animated: true)
                 }
@@ -54,5 +63,11 @@ class DeviceDetailTableViewController: UITableViewController {
 extension DeviceDetailTableViewController: PersonPickerDelegate {
     func didSelectPerson(person: Person) {
         device?.owner = person
+
+        do {
+            try managedObjectContext.save()    
+        } catch {
+            print("Error saving the managed object context!")
+        }
     }
 }
diff --git a/Device+CoreDataProperties.swift b/Device+CoreDataProperties.swift
@@ -0,0 +1,15 @@
+import Foundation
+import CoreData
+
+
+extension Device {
+
+    @nonobjc public class func fetchRequest() -> NSFetchRequest<Device> {
+        return NSFetchRequest<Device>(entityName: "Device")
+    }
+
+    @NSManaged public var deviceType: String
+    @NSManaged public var name: String
+    @NSManaged public var owner: Person?
+
+}
diff --git a/DeviceDetailTableViewController.swift b/DeviceDetailTableViewController.swift
@@ -37,6 +37,22 @@ class DeviceDetailTableViewController: UITableViewController {
         NSIndexPath) {
         if indexPath.section == 1 && indexPath.row == 0 {
             if let personPicker =
-                storyboard?.instatiate ##### 9:14
+                storyboard?.instatiateViewControllerWithIdentifier("People") as?
+                PeopleTableViewController {
+
+                    // more personPicker setup code here
+
+                    navigationController?.pushViewController(personPicker, animated: true)
+                }
         }
-    }
+    }
+
+    tableView.deselectRowAtIndexPath(indexPath, animated: true)
+    }    
+}
+
+extension DeviceDetailTableViewController: PersonPickerDelegate {
+    func didSelectPerson(person: Person) {
+        device?.owner = person
+    }
+}
diff --git a/DeviceDetailTableViewController.swift b/DeviceDetailTableViewController.swift
@@ -24,9 +24,19 @@ class DeviceDetailTableViewController: UITableViewController {
         if device == nil {
             if let name = nameTextField.text, deviceType = deviceTypeTextField.text,
                 entity = NSEntityDescription.entityForName("Device", 
-                inManagedObjectContext: managedObjectContext)
+                inManagedObjectContext: managedObjectContext) where !name.isEmpty
+                && !deviceType.isEmpty {
+                    device = Device(entity: entity, insertIntoManagedObjectContext:
+                        managedObjectContext)
+                    device?.name = name
+            }
         }
     }
 
-    override func viewDidLoad() {
-        super.viewDidLoad()
+    override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexpath: 
+        NSIndexPath) {
+        if indexPath.section == 1 && indexPath.row == 0 {
+            if let personPicker =
+                storyboard?.instatiate ##### 9:14
+        }
+    }
diff --git a/DeviceDetailTableViewController.swift b/DeviceDetailTableViewController.swift
@@ -20,7 +20,12 @@ class DeviceDetailTableViewController: UITableViewController {
     }
 
     override func viewWillDisappear(animated: Bool) {
-
+        // need to add a device?
+        if device == nil {
+            if let name = nameTextField.text, deviceType = deviceTypeTextField.text,
+                entity = NSEntityDescription.entityForName("Device", 
+                inManagedObjectContext: managedObjectContext)
+        }
     }
 
     override func viewDidLoad() {

diff --git a/code.txt b/code.txt
@@ -1,3 +1,5 @@
+https://www.youtube.com/watch?v=uJuLk1niBYA
+
 --- add relationships
 Device - Owner, Destination - Person, leave optional
 Persion - Devices, Destination - Device, Inverse - Owner, not optional, Type - to many

diff --git a/DeviceDetailTableViewController.swift b/DeviceDetailTableViewController.swift
@@ -0,0 +1,27 @@
+import CoreData
+import UIKit
+
+@objcMembers
+class DeviceDetailTableViewController: UITableViewController {
+    var managedObjectContext: NSManagedObjectContext!
+    var device Device?
+
+    @IBOutlet weak var nameTextField: UITextField!
+    @IBOutlet weak var deviceTypeTextField: UITextField!
+    @IBOutlet weak var deviceOwnerTextField: UITextField!
+
+    override func viewWillAppear(animated: Bool) {
+      super.viewWillAppear(animated)
+
+      if let device = device {
+        nameTextField.text = device.name
+        deviceTypeTextField.text = device.deviceType
+      }
+    }
+
+    override func viewWillDisappear(animated: Bool) {
+
+    }
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
diff --git a/PeopleTableViewController.swift b/PeopleTableViewController.swift
@@ -6,3 +6,12 @@ protocol PersonPickerDelegate: class {
   func didSelectPerson(person: Person)
 }
 
+@objcMembers
+class PeopleTableViewController: UITableViewController {
+    var managedObjectContext: NSManagedObjectContext!
+    var people = [Person]()
+
+    // for person select mode
+    weak var pickerDelegate: PersonPickerDelegate?
+    var selectedPerson: Person?
+
diff --git a/PeopleTableViewController.swift b/PeopleTableViewController.swift
@@ -0,0 +1,8 @@
+
+import UIKit
+import CoreData
+
+protocol PersonPickerDelegate: class {
+  func didSelectPerson(person: Person)
+}
+
diff --git a/AppDelegate.swift b/AppDelegate.swift
@@ -1,9 +1,22 @@
+  let modelURL =
+    NSBundle.mainBundle().URLForResource("myDevices", withExtension: "Momd")!
+  return NSManagedObjectModel(contentsOfURL: modelURL)!
+}()
 
+lazy var persistentStoreCoordinator:
+  NSPersistentStoreCoordinator = {
+
+  let coordinator = NSPersistentStoreCoordinator
+    (managedObjectModel: self.managedObjectModel)
+  let url = self.applicationDocumentDirectory.
+    URLByAppendingPathComponent("SingleViewCoreData.sqlite")
   var failureReason = "There was an error creating or loading the application's saved data."
 
   do {
     try coordinator.addPersistenStoreWithType (NSSQLiteStoreType, 
-      configuration: nil, URL: url, options: nil)
+      configuration: nil, URL: url, options: 
+        [NSMigratePersistentStoresAutomaticallyOption: true,
+        NSInferMappingModelAutomaticallyOption: true])
   } catch {
     var dict = [String: AnyObject]()
     dict[NSLocalisedDescriptionKey] = "Failed to initialize the application's saved data"

diff --git a/AppDelegate.swift b/AppDelegate.swift
@@ -1,10 +1,19 @@
 
-  let wrappedError = NSError(domain:
-    "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
+  var failureReason = "There was an error creating or loading the application's saved data."
 
-  NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
-  abort()
-}
+  do {
+    try coordinator.addPersistenStoreWithType (NSSQLiteStoreType, 
+      configuration: nil, URL: url, options: nil)
+  } catch {
+    var dict = [String: AnyObject]()
+    dict[NSLocalisedDescriptionKey] = "Failed to initialize the application's saved data"
+    dict[NSUnderlyingErrorKey] = error as NSError
+    let wrappedError = NSError(domain:
+      "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
+
+    NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
+    abort()
+  }
   return coordinator
 }()
 

diff --git a/AppDelegate.swift b/AppDelegate.swift
@@ -0,0 +1,14 @@
+
+  let wrappedError = NSError(domain:
+    "YOUR_ERROR_DOMAIN", code: 9999, userInfo: dict)
+
+  NSLog("Unresolved error \(wrappedError), \(wrappedError.userInfo)")
+  abort()
+}
+  return coordinator
+}()
+
+lazy var managedObjectContext: NSManagedObjectContext {
+
+
+}
diff --git a/code.txt b/code.txt
@@ -1,4 +1,11 @@
 --- add relationships
 Device - Owner, Destination - Person, leave optional
 Persion - Devices, Destination - Device, Inverse - Owner, not optional, Type - to many
-Editor > Create NSManagedObjects Subclass, both
+Editor > Create NSManagedObjects Subclass, both
+
+In Devices.swift 
+var deviceDescription: String {
+  return "\(name) (\(deviceType))"
+}
+
+Remember again to remove the question mark from Person - name, devices. Device - all Strings
diff --git a/code.txt b/code.txt
@@ -0,0 +1,4 @@
+--- add relationships
+Device - Owner, Destination - Person, leave optional
+Persion - Devices, Destination - Device, Inverse - Owner, not optional, Type - to many
+Editor > Create NSManagedObjects Subclass, both
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