Dictionary-Objekt nicht Prädikat

Question

Ich habe ein JSON-Objekt

{ 
"c_id": "261", 
"customer_id": "178729", 
"name": "Three, Test" 
}, 
{ 
"c_id": "261", 
"customer_id": "178727", 
"name": "Two, Test" 
}, 
{ 
"c_id": "261", 
"customer_id": "178728", 
"name": "Two, Test" 
}, 
{ 
"c_id": "261", 
"customer_id": "185186", 
"name": "Valid, Another" 
}, 
{ 
"c_id": "261", 
"customer_id": "183889", 
"name": "White, Betty" 
} 

jedoch in so kommt, wenn dieser Code verarbeitet

NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]; 
     NSMutableArray *tempCustomers = [[NSMutableArray alloc] init]; 
     for (NSDictionary *dict in [json objectForKey:@"data"]) { 
      NSLog(@"dict: %@", dict); 
      NSLog(@"name: %@", [dict objectForKey:@"name"]); 
      [tempCustomers addObject:dict]; 
     } 

     self.customers = tempCustomers; 
     NSLog(@"Customers: %@",customers); 
     self.customerData = [self partitionObjects:[self customers] collationStringSelector:@selector(self)]; 
     NSLog(@"CustomerData: %@",customerData); 

-(NSArray *)partitionObjects:(NSArray *)array collationStringSelector:(SEL)selector 
{ 
    UILocalizedIndexedCollation *collation = [UILocalizedIndexedCollation currentCollation]; 
    NSInteger sectionCount = [[collation sectionTitles] count]; 
    NSMutableArray *unsortedSections = [NSMutableArray arrayWithCapacity:sectionCount]; 

    for (int i = 0; i < sectionCount; i++) { 
     [unsortedSections addObject:[NSMutableArray array]]; 
    } 

    for (id object in array) { 
     NSInteger index = [collation sectionForObject:[object objectForKey:@"name"] collationStringSelector:selector]; 
     [[unsortedSections objectAtIndex:index] addObject:object]; 
    } 

    NSMutableArray *sections = [NSMutableArray arrayWithCapacity:sectionCount]; 
    NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES]; 
    NSArray *sortDescriptors = [NSArray arrayWithObject:sortDescriptor]; 


    for (NSMutableArray *section in unsortedSections) { 
     NSArray *sortedArray = [section sortedArrayUsingDescriptors:sortDescriptors]; 
     //NSLog(@"Sort: %@",sortedArray); 
     //[sections addObject:[collation sortedArrayFromArray:section collationStringSelector:selector]]; 
     [sections addObject:sortedArray]; 
    } 

    return sections; 
} 

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString 
{ 
    NSLog(@"Search Display Controller: %@", self.customerData); 
    //NSString *predicateString = [NSString stringWithFormat:@"name CONTAINS[cd] '%@'",searchString]; 
    NSPredicate *predicate = [NSPredicate predicateWithFormat:@"name CONTAINS[cd] '%@'",searchString]; 
    self.filteredCustomers = [[self.customerData filteredArrayUsingPredicate:predicate] mutableCopy]; 
    NSLog(@"Filtered Customers %@", self.filteredCustomers); 

    return YES; 
} 

Es zeigt

2012-03-26 14:15:21.885 MyApp[65799:15003] name: Two, Test 
2012-03-26 14:15:21.885 MyApp[65799:15003] dict: { 
    "c_id" = 261; 
    "customer_id" = 178728; 
    name = "Two, Test"; 
} 
2012-03-26 14:15:21.885 MyApp[65799:15003] name: Two, Test 
2012-03-26 14:15:21.885 MyApp[65799:15003] dict: { 
    "c_id" = 261; 
    "customer_id" = 185186; 
    name = "Valid, Another"; 
} 
2012-03-26 14:15:21.885 MyApp[65799:15003] name: Valid, Another 
2012-03-26 14:15:21.886 MyApp[65799:15003] dict: { 
    "c_id" = 261; 
    "customer_id" = 183889; 
    name = "White, Betty"; 
} 
2012-03-26 14:15:21.886 MyApp[65799:15003] name: White, Betty 
2012-03-27 08:35:24.764 MyApp[67330:fb03] Search Display Controller: (
     (
    ), 
    (
       { 
      "c_id" = 261; 
      "customer_id" = 178664; 
      name = "Test, My"; 
     }, 
       { 
      "c_id" = 261; 
      "customer_id" = 185182; 
      name = "Test, valid"; 
     }, 
       { 
      "c_id" = 261; 
      "customer_id" = 178729; 
      name = "Three, Test"; 
     }, 
       { 
      "c_id" = 261; 
      "customer_id" = 178727; 
      name = "Two, Test"; 
     }, 
       { 
      "c_id" = 261; 
      "customer_id" = 178728; 
      name = "Two, Test"; 
     } 
    ), 
     (
    ), 
     (
       { 
      "c_id" = 261; 
      "customer_id" = 185186; 
      name = "Valid, Another"; 
     } 
    ), 
     (
       { 
      "c_id" = 261; 
      "customer_id" = 183889; 
      name = "White, Betty"; 
     } 
    ), 
     (
    ), 
     (
    ), 
     (
    ), 
     (
    ) 
) 
2012-03-27 08:35:24.766 MyApp[67330:fb03] Filtered Customers (
) 

Beachten Sie die "" um der Name Schlüssel fehlt. Ich glaube, das ist der Grund, warum mein NSPredicate in meinem searchDisplayController nicht funktioniert. Warum werden die Anführungszeichen entfernt und wie würde ich meine searchDisplayController reparieren?

Answer 1

Ich habe gerade bemerkt, in Ihrem Prädikat haben Sie einfache Anführungszeichen um das% @ - sie sollten nicht da sein. Setzen Sie die einfachen Anführungszeichen um% @ und machen Sie daraus ein Literal.