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).
I have the following expression NSPredicate* predicate = [NSPredicate predicateWithFormat:@\"v开发者_C百科alue1== %@\", variable1];
I have a DB with the following relationships: A <<-->> B A: Members table; B: Activities table A Member has many Activities, and each Activity has many Members. So, a many to many relations
I have an array with file names and I want to find all 开发者_如何学编程the names that end with e.g. 00001.trc when traceNum is 1. I tried this:
I have a many-to-many relationship between tables, and I populate a tableView with Activities. For that i user a simple NSPredicate like this:
This question already has answers here: Closed 11 years ago. Possible Duplicate: Searching/Filtering a custom class array with a NSPredicate
I have created an NSManagedObject called TItem. To that object, I\'ve added a helper instance method like the following:
I have an NSArray full of NSDictionary objects. Each dictionary object has a key:value: color: red Amongst other keys... color could be one of many colors that are user generated.
OK.This one has me beat. The CoreData graph matches the code you see below. I want to filter Entities by the inherited UUID.I am creating a predicate and a fetch request using the following code:
I am working on a Core Databased iOS application , in which i stored an array strings in coredata as NSData(binary data).
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