How to use the “ALL” aggregate operation in a NSPredicate to filter a CoreData-based collection

Question

Based on the data model below

And based on user input I create a NSSet of managedObjects

Answer 1

The simplest way to do this:

[NSPredicate predicateWithFormat:@"entryTags IN %@", selectedTags];

You don't need the ALL clause. It's also documented here:

Predicate Programming guide

And as you can see in this post the user does it successfully (read the comments to the original question)

NSPredicate iPhone 3.2 SDK Core Data “IN clause”...