How to pull information from NSDictionary Swift - ios

Question

Right now I have a mapview that populates a bunch of pins based on a category, for example, 'Asian Food'. WHen i click the callout accessory of that annotation, the app navigates to a detail viewcontroller, which I hope to display the address and other properties. I am getting the information from the Yelp API CLient. Here is my model:
import UIKit
import MapKit
var resultQueryDictionary:NSDictionary!
class Resturant: NSObject {
var name: String!
var thumbUrl: String!
var address: String!
var jsonData: NSData!
var location: NSDictionary // location
init(dictionary: NSDictionary) {
name = dictionary["name"] as? String
thumbUrl = dictionary["thumbUrl"] as? String
address = dictionary["address"] as? String
self.location = dictionary["location"] as? NSDictionary ?? [:]
}
class func searchWithQuery(map: MKMapView, query: String, completion: ([Resturant]!, NSError!) -> Void) {
YelpClient.sharedInstance.searchWithTerm(query,sort: 0, radius: 1069, success: { (operation: AFHTTPRequestOperation!, response: AnyObject!) -> Void in
let responseInfo = response as! NSDictionary
resultQueryDictionary = responseInfo
println(responseInfo)
let dataArray = responseInfo["businesses"] as! NSArray
for business in dataArray {
let obj = business as! NSDictionary
var yelpBusinessMock: YelpBusiness = YelpBusiness(dictionary: obj)
var annotation = MKPointAnnotation()
annotation.coordinate = yelpBusinessMock.location.coordinate
annotation.title = yelpBusinessMock.name
annotation.subtitle = yelpBusinessMock.displayAddress
attractionDetailAddressString = yelpBusinessMock.displayAddress
map.addAnnotation(annotation)
}
}) { (operation: AFHTTPRequestOperation!, error: NSError!) -> Void in
println(error)
}
}
// term: String, deal: Bool, radius: Int, sort: Int, categories: String, success: (AFHTTPRequestOperation!, AnyObject!) -> Void, failure: (AFHTTPRequestOperation!, NSError!) -> Void) -> AFHTTPRequestOperation! {
class func searchWithQueryWithRadius(map: MKMapView, term: String, deal: Bool, radius: Int, sort: Int, categories: String, completion: ([Resturant]!, NSError!) -> Void) {
YelpClient.sharedInstance.searchWithTerm(term, deal: false, radius: radius, sort: sort,categories: categories, success: { (operation: AFHTTPRequestOperation!, response: AnyObject!) -> Void in
let responseInfo = response as! NSDictionary
resultQueryDictionary = responseInfo
println(responseInfo)
let dataArray = responseInfo["businesses"] as! NSArray
for business in dataArray {
let obj = business as! NSDictionary
var yelpBusinessMock: YelpBusiness = YelpBusiness(dictionary: obj)
var annotation = MKPointAnnotation()
annotation.coordinate = yelpBusinessMock.location.coordinate
annotation.title = yelpBusinessMock.name
map.addAnnotation(annotation)
}
}) { (operation: AFHTTPRequestOperation!, error: NSError!) -> Void in
println(error)
}
}
}
In my Attractions ViewController (where the user taps categories to populate the map with pins), I have this code for when the callout accessory is tapped:
func mapView(mapView: MKMapView!, annotationView view: MKAnnotationView!, calloutAccessoryControlTapped control: UIControl!) {
if (control == view.rightCalloutAccessoryView) {
let selectedLocation = view.annotation;
let selectedCoordinate = view.annotation.coordinate;
var latitude = selectedCoordinate.latitude
var longitude = selectedCoordinate.longitude
var location:CLLocation = CLLocation(latitude: latitude, longitude: longitude)
let businessPlacemark = MKPlacemark(coordinate: selectedCoordinate, addressDictionary: nil)
indicatedMapItem = selectedCoordinate;
let resturantMock:Resturant = Resturant(dictionary: resultQueryDictionary)
attractionDict = resturantMock.location;
performSegueWithIdentifier("attractionToDetail", sender: self);
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
var attractionsDetailViewController:AttractionsDetailViewController = segue.destinationViewController as! AttractionsDetailViewController
attractionsDetailViewController.attractionLocation = indicatedMapItem;
attractionsDetailViewController.attractionLocationDetail = self.attractionDict
}
In my Detail View Controller, I attempt to get the data for the specific business that is tapped.
func getYelpData() {
var businessMock:Resturant = Resturant(dictionary: resultQueryDictionary)
var address:NSDictionary = attractionLocationDetail //dictionary
attractionDetailAddressString = businessMock.location["display_address"] as? String;
self.addressLabel.text = attractionDetailAddressString
}
However, this displays that address is nil.
Basically I want to know how to get one instance of the business from the large NSDictionary of Businesses and then retrieve the data for that individual business in my detail VC.
This is my Github repo if you want to look at all the code:
https://github.com/ssharif6/Park-N-Go
Thanks for any help!

Answer 1

It looks as though your problem may be here on this line
attractionDict = resturantMock.location;
Your dictionary will have a location key, but doesn't have the keys as suggested here on that location sub dictionary:
init(dictionary: NSDictionary) {
name = dictionary["name"] as? String
thumbUrl = dictionary["thumbUrl"] as? String
address = dictionary["address"] as? String
self.location = dictionary["location"] as? NSDictionary ?? [:]
}
So naturally all those values will be nil when your VC gets loaded.
Those keys however do exist on the resturantMock.business dictionary - is that what you meant to write? :)