Assigning unique ID to a cell ref / disclosure button

[scrumsolutions]

Hi All,

I have a view controller (from a UITableView disclosure button) that jumps to another view controller (detail view) using the following code;

- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath {
    addUS *editRecord = [[addUS alloc] init];
    editRecord.editID = @"1";
	[self presentModalViewController: editRecord animated:YES];
}

What I want to do give the editRecord.editID a unique value, for example I have a uid no that represents the record in the cell, I need to determine the record being clicked on and then passing that over to the editID property.

Cheers

Carl

[dljeffery]

Well, that's why that method is passed an NSIndexPath. Just like cellForRowAtIndexPath, where you say "OK, for that indexPath, I'm going to use this record".

So do whatever you do in cellForRowAtIndexPath to determine your record. Look it up in an array, or ask your NSFectchedResultsController for it, or however you do it in your app.

[scrumsolutions]

Hi,

cellForRowAtIndexPath

Isn't that the cell index? Is there an option to give it a uid other than the one generated based on order?

[dljeffery]

Yes, cellForRowAtIndexPath is passed the cell index.

Just like accessoryButtonTappedForRowWithIndexPath is passed the cell index.

Same cell index; same logic.

[scrumsolutions]

Originally Posted by dljeffery

Yes, cellForRowAtIndexPath is passed the cell index.

Just like accessoryButtonTappedForRowWithIndexPath is passed the cell index.

Same cell index; same logic.

:-) got you. OK, so I have an array of data (being populated from JSON), how would I change the method to take whatever value I needed instead of the indexpath?

[dljeffery]

Depends; can you post your cellForRowAtIndexPath method?

[scrumsolutions]

Originally Posted by dljeffery

Depends; can you post your cellForRowAtIndexPath method?

This is a mock cellForRowAtIndexPath method;

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    NSLog(@">>> Entering %s <<<", __PRETTY_FUNCTION__);
    NSString *contentForThisRow = [[self contentsList] objectAtIndex:[indexPath row]];
    static NSString *CellIdentifier = @"CellIdentifier";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil)
    {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
    }
    cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
    
    [[cell textLabel] setText:contentForThisRow];
    NSLog(@"<<< Leaving %s >>>", __PRETTY_FUNCTION__);
    return cell;
}

[dljeffery]

A mock one? As in, not your real implementation? In that case, it doesn't help.

But in this mock case, do exactly this same logic in accessoryButtonTappedForRowWithIndexPath to get your record:

NSString *contentForThisRow = [[self contentsList] objectAtIndex:[indexPath row]];

[scrumsolutions]

Originally Posted by dljeffery

A mock one? As in, not your real implementation? In that case, it doesn't help.

But in this mock case, do exactly this same logic in accessoryButtonTappedForRowWithIndexPath to get your record:

NSString *contentForThisRow = [[self contentsList] objectAtIndex:[indexPath row]];

Thanks, that was exactly what I was after, works a treat.