Question

I’m using Core Data to store a project name and display it in a table view. When the table view is empty (no data in the database) it is blank. From a user perspective this isn’t great, so I want to be able to display a label that says “No Projects”.

How would I do this? I would need to:

1. Check that the database is empty and set a BOOL
2. if this BOOL is set to true or YES, show a label? or set the cell.textLabel.text as “No Projects”

If i’m on the right tracks I’d really appreciate some example code to give me a push in the right direction.

Thanks

Answer 1

I ended up using the following code to check if my Core Data database is empty. Works brilliantly. This must go in the CoreDataController.m file.

NSLog(@"Total number of rows = %d ", totalNumberOfRowsInDatabase);

    if (totalNumberOfRowsInDatabase == 0)
    {

        NSLog(@"Database is empty");
        UIImage *image = [UIImage imageNamed:@"emptyTable.png"];
        UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
        [imageView setFrame:self.tableView.bounds];
        [self.tableView setBackgroundView:imageView];
        self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        [self.tableView setBackgroundColor:[UIColor clearColor]];

    }
    else 
    {
        [self.tableView setBackgroundView:nil];
        self.tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;
        [self.tableView setBackgroundColor:[UIColor whiteColor]];
    }

    return [[[self.fetchedResultsController sections] objectAtIndex:section] numberOfObjects];