Question

I have asked this in the past but couldn’t get a clear answer.
I have an object in CoreData like this, KeyWord(word, chapter)

Word      Chapter
cold      chapter1
cold      chapter2
cold      chapter3
weather   chapter1
weather   chapter2
humidity  chapter7
Florida   chapter8
Florida   chapter9

I would like the user to search for any of these words as in “cold Florida weather ..”
So, I broke the search into an NSArray *tokens = [search.text compnentsSeparatedBy:@" "];

Currently, I have this predicate which kinda works:

[NSPredicate predicateWithFormat@"word contains[cd]%@ AND word contains [cd]%@",words[0],words[1],words[2]..]

But, the problem is that I don’t know how many words the user will type in, so, Is there a way to search the column ‘word’ using NSArray of tokens?

Answer 1

Check out:

[NSCompoundPredicate andPredicateWithSubpredicates:/*Your Array Of Contains Predicates Here*/]

Although I’m unclear from your question if you want to be using the IN command to search an array/set of objects.

[NSPredicate predicateWithFormat:@"word IN %@", setOfWords]