Nerdfeed/CoursesViewController.swift at master · troyboy27/Nerdfeed · GitHub

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//
//  CoursesViewController.swift
//  Nerdfeed
//
//  Created by Troy Abel on 10/23/14.
//  Copyright (c) 2014 Troy Abel. All rights reserved.
//

import UIKit

class CoursesViewController: UITableViewController {
    var session: NSURLSession!
    var courses = [[NSObject:AnyObject]]()


    required init(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        let config = NSURLSessionConfiguration.defaultSessionConfiguration()
        session = NSURLSession(configuration: config, delegate: nil, delegateQueue: nil)

        fetchFeed()

    }

    func fetchFeed() {
            let requestString = "http://bookapi.bignerdranch.com/courses.json"
            if let url = NSURL(string: requestString) {
            let req = NSURLRequest(URL: url)
            let dataTask = session.dataTaskWithRequest(req) {
            (data, response, error) in
            if data != nil {
            var error: NSError?

            if let jsonObject = NSJSONSerialization.JSONObjectWithData(data,

            options: nil,

            error: &error) as? [NSObject:AnyObject] {

    if let courseArray: AnyObject = jsonObject["courses"] {
        if let cs = courseArray as? [[NSObject:AnyObject]] {
        self.courses = cs
        println("\(self.courses)")

        NSOperationQueue.mainQueue().addOperationWithBlock() {
                self.tableView.reloadSections(NSIndexSet(index: 0), withRowAnimation: .Automatic)
        }

        }
    }

        }
            else {
            if let error = error {
            println("Error parsing JSON: \(error)")
            } }

        } else {
            println("Error fetching courses: \(error.localizedDescription)")
            }
            }
            dataTask.resume()
            }
    }

    override func tableView(tableView: UITableView,
                numberOfRowsInSection section: Int) -> Int {
                return courses.count
    }
    override func tableView(tableView: UITableView,
                cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
                let cell = tableView.dequeueReusableCellWithIdentifier("UITableViewCell",
                forIndexPath: indexPath) as UITableViewCell
                let course = courses[indexPath.row]
                if let title: AnyObject = course["title"] {
                if let titleString = title as? String {
                cell.textLabel.text = titleString
                }
                }
                return cell }

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
                if segue.identifier == "showDetail" {
                // Make sure the destination is a WebViewController
                if let wvc = segue.destinationViewController as? WebViewController {
                // Get the selected index path
                if let indexPath = tableView.indexPathForSelectedRow() {
                let course = courses[indexPath.row]
                if let url: AnyObject = course["url"] {
                if let urlString = url as? String {
                wvc.URL = NSURL(string: urlString)
                }
                }
                if let title: AnyObject = course["title"] {
                if let titleString = title as? String {
                wvc.navigationItem.title = titleString
                }
                } }
                } }
    }


}