For the users who read this article,  Here is the Part 3

http://icodeblog.com/2008/09/10/iphone-programming-tutorial-creating-a-todo-list-using-sqlite-part-3/

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online to do list
http://onlinedolist.com

First, it’s generally not recommended [citation needed] to spread SQL queries and data retrieval logic over the application: this tutorial indicates that retrieving the full list from the DB goes in the application delegate, and that retrieving of specific Todo model data goes into the Todo object itself.

It’s generally considered better [citation needed] to move data access logic into a separate data access object. This keeps data retrieval and connection logic out of the application intitialization class.

Second, there’s a few things turned deprecated since this tutorial was published. In particular, instead of the TableCell’s initWithFrame as indicated in this tutorial, one should override initWithStyle. The rest of the code remains pretty much the same though, nothing major to be changed.

Finally, and this refers to the initial data retrieval indicated in the first part of the tutorial, you may want to add some error handling in case you accidentally make a typo in your SQL or whatever (like I did). Add an else to the ‘if (sqlite3_prepare_v2(/*blah*/) == SQLITE_OK)’:

        } else {            NSLog(@”%@”, [NSString stringWithUTF8String:sqlite3_errmsg(database)]);        }

This’ll output the error message to the console if you run it from the iphone simulator.

For the rest: It’s a lot of code (especially writing out the custom TableCell layout), but everyone has to have done something like that at least once.

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Anyway when I did that it all works fine.

todoAppDelegate should be accessed differently when trying to access the todos array.

Shame it was a good tutorial up until now.