Awesome, thank you. For anyone else who stumbles upon this question looking for
something similar, check out Apple's DerivedProperty example:
http://developer.apple.com/library/mac/#samplecode/DerivedProperty/Introduction/Intro.html
It has examples on using the <= & > string comparison trick as
Well, when I said ANY, I really meant "IN termsArray", but for the
partial matches that you want your approach is fine, you'll just want
to use > & <= with character evaluations to speed this up. Check the
2010 CoreData Performance session from WWDC for more details, but it's
a standard SQL trick t
On 2011 Jul 07, at 10:38, Indragie Karunaratne wrote:
> I'm sure there's a better way to simplify this instead of using a giant
> compound AND predicate
On the contrary, I don't trust that predicateWithFormat: stuff. It's too easy
to type mistakes into the format string; in particular it temp
I came up with this code earlier:
NSArray *searchTerms = [cleanedQuery componentsSeparatedByString:@" "];
NSPredicate *basePredicate = [NSPredicate
predicateWithFormat:@"SUBQUERY(keywords, $keyword, $keyword.name BEGINSWITH
$QUERY).@count != 0"];
NSMutableArray *subpredicates = [NSMutabl
Hi all,
I have a Core Data object model that I'm trying to write a fetch predicate for
(to use for search). Quick explanation of the model:
We'll call the main entity "Book". There's also a "Keyword" entity. The Book
entity has a to-many relationship with the Keyword entity called "keywords".
