變形的屬性

Question

我已存儲的詞典在變形attribute.I想知道

如何從它那裏得到一個數據？**

NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] 
initWithEntityName:@"MemberProfile"]; 
NSSortDescriptor *ordering = [[NSSortDescriptor alloc] initWithKey: 
[member.member_Profile objectForKey:"@order"] ascending:YES]; 
[fetchRequest setSortDescriptors:[NSArray 
arrayWithObjects:ordering,nil]]; 
NSArray *result = [self.managedObjectContext 
executeFetchRequest:fetchRequest error:Nil]; 
self.masterList = [[NSMutableArray alloc] initWithArray:result]; 

Answer 1

進口NSManagedObject（InstallProject）並獲取一個像這樣的對象，

-(InstallProject *)readSelectedInstall:(NSString *)projIDString 
{ 
NSArray *fetchedObjects; 
NSManagedObjectContext *context = [self managedObjectContext]; 
NSFetchRequest *fetch = [[NSFetchRequest alloc] init]; 
NSEntityDescription *entityDescription = [NSEntityDescription entityForName:@"InstallProject" inManagedObjectContext: context]; 
[fetch setEntity:entityDescription]; 
[fetch setPredicate:[NSPredicate predicateWithFormat:@"(ANY ProjID contains[cd] %@)",projIDString]]; 
NSError * error = nil; 
fetchedObjects = [context executeFetchRequest:fetch error:&error]; 

if([fetchedObjects count] == 1) 
return [fetchedObjects objectAtIndex:0]; 
else 
return nil; 
}