gistfile1.txt

+(instancetype)me; {
 
  XXXCurrentUser * me = [XXXCurrentUser MR_findFirst];
  [XXXClient sharedManager].accessCredential = [[LUKeychainAccess standardKeychainAccess]
                                                 objectForKey:NSStringFromClass([self class])];
 
  
 
  if(me == nil || [XXXClient sharedManager].accessCredential == nil) {
    me = nil;
    [self logout];
  }
  
 
  return me;
}
 
+(void)logout; {
  [[LUKeychainAccess standardKeychainAccess] setObject:nil forKey:NSStringFromClass([self class])];
  [XXXCurrentUser MR_truncateAll]; //This is using cascading to get rid of any other record in the DB. 
  [[MagicalRecordStack defaultStack].context MR_saveToPersistentStoreAndWait];
 
}