Core Data Migration with MagicalRecord - add attribute and fill it

Asked Mar 06 '13 at 04:37

Active Mar 06 '13 at 14:06

Viewed 714 times

I have an iOS app and I have some problems with UITableView and section headers using MagicalRecord. I need to sort my table by title and the title has entries with uppercase and lowercase letters. Since MagicalRecord does not do "ignoreCase" sorting I need to have an additional column with a "normalized" title (e.g. all lowercase).

Now my issue is how to add this additional column. I can add a new column through the migration, but I do not know how to fill the column with the normalized title.

I read this Stack Overflow answer but can still not figure out how this should work.

I am already thinking of writing my own migration system as I know it from Rails that would just fill the new column with the normalized title.

If you are interested: the source for the whole project is on GitHub: https://github.com/deepflame/iOpenSongs

edited May 23 '17 at 12:08

Community

asked Mar 06 '13 at 04:37

deepflame

Do you still need help with this issue or have you solved it? – runmad Jul 24 '13 at 18:32
@runmad thanks for asking. I have solved it now with some custom migration. Will add a solution for that later. – deepflame Jul 25 '13 at 08:27
@runmad would you guys share a solution? How do you solve this ? – Zigii Wong Aug 31 '16 at 09:28

Core Data Migration with MagicalRecord - add attribute and fill it

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