RestKit/RestKit — pull request #716 by rbishop (2012-05-05 18:09:36+00:00)
Title: Related to issue #593 added some new methods to make mapping CoreData FK -> PK relationships easier

I didn't implement the match predicate portion discussed in that issue, but I did implement

- (void)connectRelationship:(NSString *)relationshipName
usingForeignKeyAttribute:(NSString *)keyAttribute
mapping:(RKManagedObjectMapping *)mapping;

So you don't have to call both hasOne:mapping and connectRelationship:withObjectForPrimaryKeyAttribute: