UITableView not populating with SQLite - sqlite

Question

I want to create a to-do list with SQLite, and I have been following this tutorial: http://klanguedoc.hubpages.com/hub/IOS-5-How-To-Display-SQLite-Data-in-a-UITableView
but it's not working! The simulator runs, and the app opens, but the table is blank. Am I doing something wrong? I am using xcode 4.2 for snow leopard.
In the .sqlite file I have a string text, integer priority, and boolean complete. However, I've just implemented "text" to make things simpler.
Here's my code:
// Title.h
#import <Foundation/Foundation.h>
#interface Title : NSObject {
NSString *text;
}
#property(nonatomic,copy) NSString *text;
#end
//TitleVC.h
#import <UIKit/UIKit.h>
#import <sqlite3.h>
#interface TitleVC : UITableViewController{
NSMutableArray *thelist;
sqlite3 *db;
}
#property (nonatomic,retain) NSMutableArray *thelist;
-(NSMutableArray *) toDo;
#end
//TitleVC.m
#import "TitleVC.h"
#import "Title.h"
#import <sqlite3.h>
#implementation TitleVC
#synthesize thelist;
- (void)viewDidLoad
{
[self toDo];
[super viewDidLoad];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.thelist count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"TitleCell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
}
int rowCount = indexPath.row;
Title *title = [self.thelist objectAtIndex:rowCount];
cell.textLabel.text = title.text;
return cell;
}
-(NSMutableArray *) toDo{
thelist = [[NSMutableArray alloc] initWithCapacity:10];
#try{
NSFileManager *fileManager = [NSFileManager defaultManager];
NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:#"todo.sqlite"];
BOOL success = [fileManager fileExistsAtPath:dbPath];
if(!success)
{
NSLog(#"Cannot locate database file '%#'.",dbPath);
}
if(!(sqlite3_open([dbPath UTF8String], &db) == SQLITE_OK))
{
NSLog(#"An error has occured: %#",sqlite3_errmsg(db));
}
const char *sql = "SELECT * FROM todo";
sqlite3_stmt *sqlStatement;
if(sqlite3_prepare(db, sql, -1, &sqlStatement, NULL) != SQLITE_OK)
{
NSLog(#"Problem with prepare statement: %#", sqlite3_errmsg(db));
}else{
Title *title = [[Title alloc] init];
while (sqlite3_step(sqlStatement)==SQLITE_ROW){
title.text = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,1)];
[thelist addObject:title];
}
}
}
#catch (NSException *exception) {
NSLog(#"Problem with prepare statement: %#", sqlite3_errmsg(db));
}
#finally {
return thelist;
}
}

Answer 1

If you are using a standard UITableView, is tableView:numberOfRowsInSection: returning an appropriate value? What is tableView:cellForRowAtIndexPath: returning? I would put a break point in both locations and check to make that the methods are even being called.
Finally, if you are using a .xib file, is there a connection to the UITableView?