Cocoa NSView in NSTableView Cell

Question

I'm new to cocoa and I'm getting frustrated, I've spent almost half the day trying to find out how to add an NSView to a NSTableView cell, but I haven't found a nice guide that can help me do what I would like to achieve, maybe someone can have a look at what I've tried and tell me why it's not working and how I could get it to work...

-(NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row{
NSTableCellView *view = [tableView makeViewWithIdentifier:@"MyView" owner:self];
NSTextField *textfield = [[NSTextField alloc]initWithFrame:NSMakeRect(0, 0, 100, 30)];
[textfield setStringValue:predictate_search[row]];
[textfield setBackgroundColor:[NSColor redColor]];
[view addSubview:textfield];
[view setNeedsDisplay:YES];
return view;
}

What I would like to achieve is to have two NSTextFields above each other and the table cell to have a custom background. The above is me just trying to get one NSTextField to work, but with no luck...

The NSTableView is being created programmatically:

NSScrollView *scrollView = [[NSScrollView alloc]initWithFrame:bg];
    [scrollView setHasVerticalScroller:YES];
    [self addSubview:scrollView];

    search_results = [[NSTableView alloc]initWithFrame:bg];
    NSTableColumn *column = [[NSTableColumn alloc] initWithIdentifier:@"id"];
    [[column headerCell] setStringValue:@"Cities"];
    [column setWidth:1000.0];

    [search_results addTableColumn:column];
    [search_results setDelegate:(id)self];
    [search_results setDataSource:(id)self];
    [search_results reloadData];

    [scrollView setDocumentView:search_results];

I'm slightly confused what to put for the makeViewWithIdentifier:, I've watched the WWDC 2011 video on NSTableViews but I'm still not really sure.

If you require more information please ask

Thanks

EDIT After first answer:

-(NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row{
NSTableCellView *view = [tableView makeViewWithIdentifier:[tableColumn identifier] owner:self];
if(view == nil){
    NSTableCellView *view = [[NSTableCellView alloc]initWithFrame:[tableView frame]];
    view.identifier = [tableColumn identifier];
}
NSTextField *textfield = [[NSTextField alloc]initWithFrame:NSMakeRect(0, 0, 100, 30)];
[textfield setStringValue:predictate_search[row]];
[textfield setBackgroundColor:[NSColor redColor]];
[view addSubview:textfield];
[view setNeedsDisplay:YES];
return view;

}

However it is still not working?

Answer 1

The code below solved my problem:

-(NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row{
NSView *view = [tableView makeViewWithIdentifier:@"MyView" owner:self];

if (view == nil) {
    view = [[NSView alloc]initWithFrame:NSMakeRect(0, 0, 100, 30)];
    NSTextField *result = [[NSTextField alloc] initWithFrame:NSMakeRect(0, 25, 800, 25)];
    NSTextField *result2 = [[NSTextField alloc] initWithFrame:NSMakeRect(0, 0, 800, 25)];
    result.stringValue = [predictate_search objectAtIndex:row];
    result2.stringValue = @"UnitedKingdom";
    [view addSubview:result];
    [view addSubview:result2];
    [view setNeedsDisplay:YES];
}

return view;

}

Thanks for helping :)