Need help setting up data model to display tableView - ios

Question

I had my tableView populating as it should for a little while but then made some tweaks to how I get my data from Parse and since then I can't get my tableView to display without crashing with fatal error: Array index out of range
Here is my code:
class ViewController: UIViewController, UITableViewDataSource, UITableViewDelegate {
var vaccineEntry: Array<Array<Dictionary<String,String>>> = [[
["name" : "Rabies 1-yr", "detail": "None"],
["name" : "Rabies 3-yr", "detail": "None"],
["name" : "Distemper", "detail": "None"],
["name" : "Parvovirus", "detail": "None"],
["name" : "Adenovirus", "detail": "None"]],
[
["name" : "Parainfluenza", "detail": "None"],
["name" : "Bordetella", "detail": "None"],
["name" : "Lyme Disease", "detail": "None"],
["name" : "Leptospirosis", "detail": "None"],
["name" : "Canine Influenza", "detail": "None"]
]]
var sections = ["Core Vaccines", "Non-Core Vaccines"]
var titles = [["Rabies 1-yr", "Rabies 3-yr", "Distemper", "Parvovirus", "Adenovirus"], ["Parainfluenza", "Bordetella", "Lyme Disease", "Leptospirosis", "Canine Influenza"]]
var textCellIdenifier = "vaccineCell"
// Section Headers
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sections[section]
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return self.sections.count
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.titles[section].count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdenifier, forIndexPath: indexPath) as UITableViewCell
let object = vaccineEntry[indexPath.section][indexPath.row]
cell.textLabel?.text = object["name"]
cell.detailTextLabel?.text = object["detail"]
return cell
}
}
This line crashes with the fatal error:
let object = vaccineEntry[indexPath.section][indexPath.row]
Or I can not make an object variable and just go:
cell.textLabel?.text = vaccineEntry[indexPath.section][indexPath.row]["name"]
cell.textLabel?.text = vaccineEntry[indexPath.section][indexPath.row]["detail"]
But same deal, just crashes on the ["name"] line. What am I doing wrong? Any help is much appreciated!

Answer 1

Works perfectly fine for me without any errors or warnings!
PFB the code:
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tableView: UITableView!
var vaccineEntry: Array<Array<Dictionary<String,String>>> = [[
["name" : "Rabies 1-yr", "detail": "None"],
["name" : "Rabies 3-yr", "detail": "None"],
["name" : "Distemper", "detail": "None"],
["name" : "Parvovirus", "detail": "None"],
["name" : "Adenovirus", "detail": "None"]],
[
["name" : "Parainfluenza", "detail": "None"],
["name" : "Bordetella", "detail": "None"],
["name" : "Lyme Disease", "detail": "None"],
["name" : "Leptospirosis", "detail": "None"],
["name" : "Canine Influenza", "detail": "None"]
]]
var sections = ["Core Vaccines", "Non-Core Vaccines"]
var titles = [["Rabies 1-yr", "Rabies 3-yr", "Distemper", "Parvovirus", "Adenovirus"], ["Parainfluenza", "Bordetella", "Lyme Disease", "Leptospirosis", "Canine Influenza"]]
var textCellIdenifier = "vaccineCell"
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
self.tableView.delegate = self;
self.tableView.dataSource = self;
self.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: self.textCellIdenifier)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func tableView(tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
return self.sections[section]
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return self.sections.count
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.titles[section].count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdenifier, forIndexPath: indexPath) as UITableViewCell
let object = vaccineEntry[indexPath.section][indexPath.row]
cell.textLabel?.text = object["name"]
cell.detailTextLabel?.text = object["detail"]
return cell
}
}
The running code on simulator:

Answer 2

Here's the work-around that made the code simpler and work better!
var sections = ["Core Dog Vaccines", "Non-Core Dog Vaccines"]
var titles = [["Rabies 1-yr", "Rabies 3-yr", "Distemper", "Parvovirus", "Adenovirus"], ["Parainfluenza", "Bordetella", "Lyme Disease", "Leptospirosis", "Canine Influenza"]]
var details = [["No Dogument", "No Dogument", "No Dogument", "No Dogument", "No Dogument"], ["No Dogument", "No Dogument", "No Dogument", "No Dogument", "No Dogument"]]
var textCellIdenifier = "vaccineCell"
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier(textCellIdenifier, forIndexPath: indexPath) as UITableViewCell
cell.textLabel?.text = self.titles[indexPath.section][indexPath.row]
cell.detailTextLabel?.text = self.details[indexPath.section][indexPath.row]
return cell
}
Instead of having a complicated Array< Array< Dictionary< String,String>>> I just made a separate array for the details.. Ugh making it complicated to begin with sucks but still learning everyday! Now I can load data from parse like so:
let rabies1Query = PFQuery(className: "Vaccine")
rabies1Query.whereKey("userId", equalTo: (PFUser.currentUser()?.objectId)!)
rabies1Query.whereKey("newID", equalTo: self.dogObject)
rabies1Query.whereKey("vaccineType", equalTo: "Rabies 1-yr")
rabies1Query.findObjectsInBackgroundWithBlock({ (object, error) -> Void in
if error == nil {
if let object = object {
for object in object {
if object["expired"] as! Bool == true {
self.details[0][0] = self.expired
print("printing rabies 1-yr - EXPIRED")
} else if object["expired"] as! Bool == false {
self.details[0][0] = self.upToDate
print("printing rabies 1-yr - UP TO DATE")
}
}
}
} else {
print("printing rabies 1-yr - No Document")
}
})
And so on for each title changing the location of the details array location. Hope someone else can see and learn something!