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    <p>If the source code is just “4|3|6” it’s plain text. You can download it using <code>NSURLConnection</code>:</p> <pre><code>NSURL *targetURL = [NSURL URLWithString:@"…"]; NSURLRequest *request = [NSURLRequest requestWithURL:targetURL]; NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; </code></pre> <p>Then you can create a string from the data and parse it:</p> <pre><code>NSString *dataString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding]; NSArray *components = [dataString componentsSeparatedByString:@"|"]; [dataString release]; </code></pre> <p>Now you’ll have the components in the resulting array. I’m assuming the data is encoded in ASCII, which might not be the case. And the download is synchronous, which means it will block the current thread. If you’re running the code on the main thread, you might want to dispatch it to a background thread so that you don’t block the UI. But that’s to worry about later, just get it working first.</p> <hr> <p>As for the asynchronous download, I don’t like the asynchronous <code>NSURLConnection</code> interface, as it’s quite a lot of work for what it does. It’s a pity that <code>NSURLConnection</code> does not support blocks. You can find some <code>NSURLConnection</code> extensions with blocks on the web, but that means relying on third-party code, which carries its own possible problems. One easy way to get the download happening in background is this:</p> <pre><code>- (void) performDownload { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; NSData *downloadedData = /* synchronous NSURLConnection */; [self performSelectorOnMainThread:@selector(downloadDidFinish:) withObject:downloadedData]; [pool drain]; } - (void) downloadDidFinish: (NSData*) data { NSLog(@"Data ready: %@", data); } - (void) startDownload { [self performSelectorInBackground:@selector(performDownload) withObject:nil]; } </code></pre> <p>But you should learn about threading, run loops and autorelease pools before you start using this code, so that you know what you are doing.</p>
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    1. COIt worked, thanks a lot ! And I'm not sure I understood what you said about blocking the UI... Could you explain a bit ?
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    2. CObasically because the download happens all in the same method unlike my solution, it means that you can't do anything with the app till it's done (the download completes)
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    3. COIt’s a long story to explain this properly. [Google a bit](http://www.google.com/search?q=nsurlconnection+synchronous+asynchronous+blocking) and learn about Cocoa run loops and the difference between synchronous and asynchronous code.
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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