Outputting read in NSMutable Array - ios

Question

Problem: I have read in values from Windows Azure. Through NSLogs I am able to see that my application does indeed read in from the table on the Azure Server. However Displaying the values has become a problem.
Situation: So far I have an NSMutableArray object in the ViewController.m file. I have accessed the array and been able to assign the values from the results of the read from the table (in windows azure) to the mutableArray. My problem is that I am trying to display it through a tableview however nothing displays, and when I move down the table view, the application crashes.
I believe the main problem is this line:
cell.textLabel.text = [clubs objectAtIndex:indexPath.row];
Here is the ViewController.m code:
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController{
NSDictionary *courseDetails;
NSArray *justCourseNames;
NSDictionary *webcourseDetails;
NSArray *webjustCourseNames;
NSDictionary *clubNames;
NSArray *location;
NSMutableArray *clubs;
NSInteger amount;
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
return 2;
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
if (section == 0)
{
return #"Milton Keynes";
}
else{
return #"Stafford";
}
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
if (section == 0)
{
return clubs.count;
}
else{
return webcourseDetails.count;
}
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"cell"];
UIImage *image = [UIImage imageNamed:#"ClubCellImage"];
[cell.imageView setImage:image];
//removing the line of code below seems to fix the crash. this is the line of code to display the details
cell.textLabel.text = [clubs objectAtIndex:indexPath.row];
/*if (indexPath.section == 0)
{
//cell.textLabel.text = justCourseNames[indexPath.row];
//cell.detailTextLabel.text = courseDetails[justCourseNames[indexPath.row]];
}
else
{
cell.textLabel.text = clubs[indexPath.row];
//cell.textLabel.text = webjustCourseNames[indexPath.row];
//cell.detailTextLabel.text = webcourseDetails[webjustCourseNames[indexPath.row]];
}*/
return cell;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.client = [MSClient clientWithApplicationURLString:#"https://clublocatortimogunmakin.azure-mobile.net/"
applicationKey:#"ecxnaXEfNpeOvwYYgcViJJoumZlZng45"];
// Do any additional setup after loading the view.
NSURL *url = [[NSBundle mainBundle] URLForResource:#"courses" withExtension:#"plist"];
MSTable *itemTable = [_client tableWithName:#"Item"];
courseDetails = [NSDictionary dictionaryWithContentsOfURL:url];
justCourseNames = courseDetails.allKeys;
NSURL *weburl = [[NSBundle mainBundle] URLForResource:#"courses_web" withExtension:#"plist"];
webcourseDetails = [NSDictionary dictionaryWithContentsOfURL:weburl];
webjustCourseNames = courseDetails.allKeys;
[itemTable readWithCompletion:^(NSArray *results, NSInteger totalCount, NSError *error) {
clubs = [results mutableCopy];
amount = totalCount;
if (error) {
NSLog(#"Error: %#", error);
} else {
//NSLog(#"Item read, id: %#", [results objectAtIndex:1]);
for (int i = 0; i < results.count; i++)
{
NSLog(#"Item read, id: %#", [results objectAtIndex:i]);
}
}
}];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end

Answer 1

You are contradicting yourself when you implement the required tableview datasource methods (i.e. the numberOfRowsInSection and the cellForRowAtIndexPath methods)
You provide the count of cells here:
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
if (section == 0)
{
return clubs.count;
}
else{
return webcourseDetails.count;
}
}
So, your cellForRowAtIndexPath method should look something like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
// cell init/dequeuing
if (indexPath.section == 0) {
cell.textLabel.text = clubs[indexPath.row]; //Assuming that is an NSString instance
} else {
cell.textLabel.text = webcourseDetails[indexPath.row]; //Assuming that is an NSString instance
}
return cell;
}

Answer 2

Please, try to do the following (I think you're not re-loading table after all items are read):
[itemTable readWithCompletion:^(NSArray *results, NSInteger totalCount, NSError *error) {
clubs = [results mutableCopy];
amount = totalCount;
if (error) {
NSLog(#"Error: %#", error);
} else {
//NSLog(#"Item read, id: %#", [results objectAtIndex:1]);
for (int i = 0; i < results.count; i++)
{
NSLog(#"Item read, id: %#", [results objectAtIndex:i]);
}
[YOURTABLENAMEHERE reloadData];
}
}];
Replace YOURTABLENAMEHERE with a reference to your table.