ContactTableViewController.swift

//
//  ContactTableViewController.swift
//  MyContacts
//
//  Created by Charles Konkol on 2015-10-12.
//  Copyright © 2015 Chuck Konkol. All rights reserved.
//

import UIKit
//0) Add Import Statements for CoreDate and Foundation
import CoreData
import Foundation


class ContactTableViewController: UITableViewController {
    
    
    //2) Add variable to hold NSManagedObject
    var contactArray = [NSManagedObject]()
    
    //3) Add viewDidAppear (loads whenever view appears)
    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
        loaddb()
    }
    //4) Add func loaddb to load database and refresh table
    func loaddb()
    {
        
        let appDelegate =
        UIApplication.sharedApplication().delegate as! AppDelegate
        
        let managedContext = appDelegate.managedObjectContext
        
        
        let fetchRequest = NSFetchRequest(entityName:"Contact")
        
        
        var error: NSError?
        
        
        
        do {
            let fetchedResults = try managedContext.executeFetchRequest(fetchRequest) as? [NSManagedObject]
            if let results = fetchedResults {
                contactArray = results
                tableView.reloadData()
            } else {
                print("Could not fetch \(error), \(error!.userInfo)")
            }
        } catch let error as NSError {
            // failure
            print("Fetch failed: \(error.localizedDescription)")
        }
        
        
        
    }


    override func viewDidLoad() {
        super.viewDidLoad()

        // Uncomment the following line to preserve selection between presentations
        // self.clearsSelectionOnViewWillAppear = false

        // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
        // self.navigationItem.rightBarButtonItem = self.editButtonItem()
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    // MARK: - Table view data source

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        //5) Change to return 1
        
        return 1
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of rows
        //6) Change to return contactArray.count
        return contactArray.count
        //return 0

    }
    
    //7) Uncomment & Change to below to load rows
 
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell =
        tableView.dequeueReusableCellWithIdentifier("Cell")
            as UITableViewCell!
        
        let person = contactArray[indexPath.row]
        cell.textLabel?.text = person.valueForKey("fullname") as! String?
        cell.detailTextLabel?.text = ">>"
        
        return cell
    }

    //8) Add func tableView to show row clicked
    override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
    {
        print("You selected cell #\(indexPath.row)")
    }

    //9) Uncomment
    
  
    // Override to support conditional editing of the table view.
    override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
        // Return false if you do not want the specified item to be editable.
        return true
    }

    //10) Uncomment func tableView


    // Override to support editing the table view.
    override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
        //11 Change to delete swiped row
        if editingStyle == .Delete {
            let appDelegate =
            UIApplication.sharedApplication().delegate as! AppDelegate
            let context = appDelegate.managedObjectContext
            context.deleteObject(contactArray[indexPath.row])
            var error: NSError? = nil
            do {
                try context.save()
                loaddb()
            } catch let error1 as NSError {
                error = error1
                print("Unresolved error \(error)")
                abort()
            }
        }
 
    }

    /*
    // Override to support rearranging the table view.
    override func tableView(tableView: UITableView, moveRowAtIndexPath fromIndexPath: NSIndexPath, toIndexPath: NSIndexPath) {

    }
    */

    /*
    // Override to support conditional rearranging of the table view.
    override func tableView(tableView: UITableView, canMoveRowAtIndexPath indexPath: NSIndexPath) -> Bool {
        // Return false if you do not want the item to be re-orderable.
        return true
    }
    */

  
    // MARK: - Navigation
    
   // 12) Uncomment prepareforseque

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
        //13) Uncomment & Change to go to proper record on proper Viewcontroller
        if segue.identifier == "UpdateContacts" {
            if let destination = segue.destinationViewController as?
                ViewController {
                    if let SelectIndex = tableView.indexPathForSelectedRow?.row {
                        
                        let selectedDevice:NSManagedObject = contactArray[SelectIndex] as NSManagedObject
                        destination.contactdb = selectedDevice
                    }
            }
        }
    }


}