Somewhere there exists a list of words you shouldn’t assign as attributes within Core Data. I don’t know where that list is, and today I got bit by not knowing. I tried to use the word “deleted” as an attribute. No matter how hard I tried to set the “deleted” value and regardless of what I saw in the XML, querying “deleted” returned NO. Actually, that’s an interesting point. I was able to setValue: “deleted” but not “valueForKey:” it. Odd.

The other funny thing about this is that if you try to use the name “isDeleted”, Xcode squawks up and makes it clear that “isDeleted” is a no no. See image of squawking:

I settled on “isProfileDeleted”. Redundant, but it works a heck of a lot better now (reads and writes!). Why the “name clash” code in Xcode isn’t catching “deleted” I don’t know.

I did some searching and couldn’t find a list of reserved words. If you know of one, please share.

This entry was posted on Tuesday, April 25th, 2006 at 3:23 pm and is filed under Cocoa, Commentary, Code, Xcode. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.