Ayuda con Restkit

Estimados,

Soy bastante nuevo en objective-c. Los tutoriales que he leido aca me han servido muchísimo, pero en programación mas avanzada tengo un problema que no he podido solucionar.

Tengo que obtener los datos de un webservice que devuelve el siguiente XML por metodo GET



string
string
string


Tengo el siguiente codigo en objective-c con Restkit 0.20.0

Código: Seleccionar todo

    [RKMIMETypeSerialization registerClass:[RKURLEncodedSerialization class] forMIMEType:@"text/xml"];
   
    RKObjectMapping *objectMapping = [RKObjectMapping mappingForClass:[MyClass class]];
    [objectMapping addAttributeMappingsFromDictionary:@{ @"valor1": @"valor1", @"valor2": @"valor2", @"valor3": @"valor3" }];
   
    //  Set up the response descriptor
    RKResponseDescriptor *responseDescriptor =
    [RKResponseDescriptor
    responseDescriptorWithMapping:objectMapping
    pathPattern:nil
    keyPath:@"Piece"
    statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
   
 
    NSMutableString *Link = [NSMutableString stringWithString:@"http://url?Parametro="];
    [Link appendString:parametro.text];
   
    NSURL *URL = [NSURL URLWithString:Link];
    NSURLRequest *request = [NSURLRequest requestWithURL:URL];
    RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc]
                                          initWithRequest:request responseDescriptors:@[responseDescriptor]];
    [operation setCompletionBlockWithSuccess:
    ^(RKObjectRequestOperation *operation, RKMappingResult *result) {
        NSArray *myArray = result.array;
        for (MyClass *p in myArray) {
            NSLog(@"Name:  %@", p.valor1);
        }
    } failure:^(RKObjectRequestOperation *operation, NSError *error)
    {
        RKLogError(@"Operation failed with error: %@", error);
    }];    [operation start];


Operation failed with error: Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No mappable object representations were found at the key paths searched." UserInfo=0x86654a0 {DetailedErrors=(
), NSLocalizedFailureReason=The mapping operation was unable to find any nested object representations at the key paths searched: Piece
The representation inputted to the mapper was found to contain nested object representations at the following key paths: This likely indicates that you have misconfigured the key paths for your mappings., NSLocalizedDescription=No mappable object representations were found at the key paths searched., keyPath=null}

lauchon escribió:Estimados,

Soy bastante nuevo en objective-c. Los tutoriales que he leido aca me han servido muchísimo, pero en programación mas avanzada tengo un problema que no he podido solucionar.

Tengo que obtener los datos de un webservice que devuelve el siguiente XML por metodo GET



string
string
string


Tengo el siguiente codigo en objective-c con Restkit 0.20.0

Código: Seleccionar todo

    [RKMIMETypeSerialization registerClass:[RKURLEncodedSerialization class] forMIMEType:@"text/xml"];
   
    RKObjectMapping *objectMapping = [RKObjectMapping mappingForClass:[MyClass class]];
    [objectMapping addAttributeMappingsFromDictionary:@{ @"valor1": @"valor1", @"valor2": @"valor2", @"valor3": @"valor3" }];
   
    //  Set up the response descriptor
    RKResponseDescriptor *responseDescriptor =
    [RKResponseDescriptor
    responseDescriptorWithMapping:objectMapping
    pathPattern:nil
    keyPath:@"Piece"
    statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
   
 
    NSMutableString *Link = [NSMutableString stringWithString:@"http://url?Parametro="];
    [Link appendString:parametro.text];
   
    NSURL *URL = [NSURL URLWithString:Link];
    NSURLRequest *request = [NSURLRequest requestWithURL:URL];
    RKObjectRequestOperation *operation = [[RKObjectRequestOperation alloc]
                                          initWithRequest:request responseDescriptors:@[responseDescriptor]];
    [operation setCompletionBlockWithSuccess:
    ^(RKObjectRequestOperation *operation, RKMappingResult *result) {
        NSArray *myArray = result.array;
        for (MyClass *p in myArray) {
            NSLog(@"Name:  %@", p.valor1);
        }
    } failure:^(RKObjectRequestOperation *operation, NSError *error)
    {
        RKLogError(@"Operation failed with error: %@", error);
    }];    [operation start];


Y al ejecutarlo recibo el siguiente mensaje en el Output

Operation failed with error: Error Domain=org.restkit.RestKit.ErrorDomain Code=1001 "No mappable object representations were found at the key paths searched." UserInfo=0x86654a0 {DetailedErrors=(
), NSLocalizedFailureReason=The mapping operation was unable to find any nested object representations at the key paths searched: Piece
The representation inputted to the mapper was found to contain nested object representations at the following key paths: This likely indicates that you have misconfigured the key paths for your mappings., NSLocalizedDescription=No mappable object representations were found at the key paths searched., keyPath=null}

No entiendo por que dice que el KeyPath esta mal si la estructura del XML comienza con el nodo Piece y dentro de el los datos.

Saludos.
Gracias.