I\'m using s selector (localizedCaseInsensitiveCompare:), but i need also to use the Diacritic selector.
I have a Core开发者_如何学JAVA Data object that contains an NSSet of other objects (e.g. Library object contains NSSet of Books). What\'s the best way to check if an instance of Library contains a boo
I am trying to save an array into core data using NSData but my ManagedObjectContext says there are 0 objects and when I call it, I have it appearing as NULL. I have an entity called Event and 3 attri
I just moved my first app to my iPhone for testing (yeah). But开发者_StackOverflow中文版 when I run the app on the iPhone no data appears in my tableviews. My NSLogs also show 0 rows returning from my
I have an entity with an attribute date which is an NSDate. How would I construct a predicate to get the 开发者_开发技巧earliest date stored in the model?
I\'ve created a navigation controller based application that uses core data.Without modifying much of the code from the starting application first, I\'d like to be able to add rows by having the optio
I\'m having problem how to formulate NSPredicate to get correct data. I have three entities (Offer, List, Item) and an entity OfferMatch wchich matches an offer for each pair (List, Item).
Using Core Data, I have a fetch request to fetch the minimum of a certain attribute using an expression. If I set a predicate on the request that results in no results being matched, I get EXC_BAD_ACC
I\'m trying to copy a file from my application bundle to my app\'s documents directory. I\'m getting an error, \"Cocoa Error 262\". What am I doing wrong? Here\'s my code:
Say I have entity Businesses Reviews Reviewers Each entity has a member call开发者_如何学Goed rating.
加载中,请稍侯......