[iOS]executeFetchRequestを使用した検索方法

    NSString *foo = @"hoge";

    NSString *bar = @"huga";

    

    //Coredate検索

    NSFetchRequest *request = [[NSFetchRequestalloc] init];

    //検索先entityを設定

    NSEntityDescription *entity = [NSEntityDescriptionentityForName:@"Card"

                                              inManagedObjectContext:managedObjectContext_];

    [request setEntity: entity];

    //検索条件を設定

    NSString *predicateCommand = [NSStringstringWithFormat:@"foo MATCHES '%@' and bar CONTAINS '%@' and isHoge == YES", foo, bar];

    NSPredicate *predicate = [NSPredicatepredicateWithFormat:predicateCommand];

    [request setPredicate: predicate];

    //fetch開始

    NSArray *fetchedObjects = [[selfmanagedObjectContext] executeFetchRequest:request

                                                                         error:nil];

    

    if ([fetchedObjects count]) {

        NSManagedObject *managedObject;

        for (managedObject in fetchedObjects) {

            //managedObjectを削除

            NSString *data = [managedObject valueForKey:@"data"];

        }

        

    } else {

        //No result

    }