Parse

gistfile1.swift

//
//  JPUsersTableViewController.swift
//  BaseballCardSocialNetwork
//
//  Created by Eric Gu on 2/19/15.
//  Copyright (c) 2015 Eric Gu. All rights reserved.
//

import UIKit

class JPUsersTableViewController: UITableViewController {
    
    var usersArray = [PFObject]()
    var usersPhotosArray = [UIImage]()
    
    override init(style: UITableViewStyle){
        super.init(style: style)
    }
    
    override init(nibName nibNameOrNil: String!, bundle nibBundleOrNil: NSBundle!){
        super.init(nibName: nibNameOrNil, bundle: nibBundleOrNil)
    }
    
    required init(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
    
    func loadData(){
        usersArray.removeAll(keepCapacity: false)
        
        var findUsers = PFUser.query()
        findUsers.whereKey("username", notEqualTo: PFUser.currentUser().username)
        findUsers.findObjectsInBackgroundWithBlock {
            (objects: [AnyObject]!, error: NSError!) -> Void in
            if error == nil {
                // Success
                println("Successfully retrieved \(objects.count) users.")
                // Do something with the found objects
                for object in objects {
                    self.usersArray.append(object as PFObject)
                }
                self.tableView.reloadData()
            } else {
                // Log details of the failure
                println(error)
                self.presentErrorMessage(error)
            }
        }
        refreshControl?.endRefreshing()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        title = "Users"
        
        configureTableView()
        
        let returnIcon = UIBarButtonItem(image: kNavBarReturnIcon, style: .Plain, target: navigationController, action: "popViewControllerAnimated:")
        returnIcon.tintColor = kToolbarIconColor
        navigationItem.leftBarButtonItem = returnIcon

        loadData()
        
        addPullToRefresh()
    }

    // MARK: - Navigation
    

    // MARK: - Table view data source
    
    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return usersArray.count
    }
    
    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier(kTableViewCellIdentifier, forIndexPath: indexPath) as UITableViewCell
        let user:PFObject = usersArray[indexPath.row]
        cell.textLabel?.text = user.objectForKey("username") as String!
        
        var getProfilePhotos = PFUser.query()
        getProfilePhotos.whereKey("username", equalTo: user.objectForKey("username"))
        getProfilePhotos.getFirstObjectInBackgroundWithBlock { (object:PFObject!, error: NSError!) -> Void in
            if (error == nil) {
                if let profileImage:PFFile = object["profileImage"] as? PFFile {
                    profileImage.getDataInBackgroundWithBlock({ (imageData:NSData!, error: NSError!) -> Void in
                        if (error == nil) {
                            let image:UIImage = UIImage(data: imageData)!
                            cell.imageView!.image = image
                        }
                        else{
                            println(error)
                            self.presentErrorMessage(error)
                        }
                    })
                }
                else {
                    cell.imageView!.image = kProfileDefaultProfileImage
                }
            }
            else {
                // Log details of the failure
                println(error)
                self.presentErrorMessage(error)
            }
            //self.tableView.reloadData()
        }
        cell.textLabel?.font = UIFont(name: kStandardFontName, size: kStandardFontSize)
        cell.textLabel?.textColor = UIColor.whiteColor()
        cell.backgroundColor = kbackgroundColor
        return cell
    }
    
    func presentErrorMessage(error: NSError) {
        // Log details of the failure
        println(error)
        var errorAlert = UIAlertController(title: "Oops! Something went wrong.", message: "\(error)", preferredStyle: UIAlertControllerStyle.Alert)
        errorAlert.addAction(UIAlertAction(title: "OK", style: .Default, handler: { (action: UIAlertAction!) in
            
        }))
        self.presentViewController(errorAlert, animated: true, completion: nil)
    }

}