RestKit 简单 JSON，错误的 pathPAttern？

Question

JSON：

代码：

NSURL *baseURL = [NSURL URLWithString:@"http://www.krzysztofkurzawa.com"];
RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:baseURL];

RKLogConfigureByName("RestKit/Network", RKLogLevelTrace);
RKLogConfigureByName("RestKit/ObjectMapping", RKLogLevelTrace);

RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[mapping addAttributeMappingsFromArray:@[@"title"]];

RKResponseDescriptor *rk = [RKResponseDescriptor responseDescriptorWithMapping:mapping pathPattern:@"articles" keyPath:@"articles" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:rk];

RKObjectMapping *mapping2 = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[mapping addAttributeMappingsFromArray:@[@"title"]];

RKResponseDescriptor *rk2 = [RKResponseDescriptor responseDescriptorWithMapping:mapping2 pathPattern:@"articles/:id" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:rk2];


[[RKObjectManager sharedManager] getObjectsAtPath:@"articles" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    NSLog(@"%@", [mappingResult firstObject]);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {

}];

[[RKObjectManager sharedManager] getObjectsAtPath:@"articles/1" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    NSLog(@"%@", [mappingResult firstObject]);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {

}];

Error: No mappable object representations were found at the key paths searched.", keyPath=null, NSLocalizedDescription=No response descriptors match the response loaded.}

我没有任何想法。当 pathPattern 设置为 nil 时，第一个映射有效。为什么必须是nil？也许需要它来创建休息路径模式。

Answer 1

可能对你有帮助

NSString *pathNotation = @"/Notations/:notation_id";    
RKRoute *notationRoute = [RKRoute routeWithClass:[Notation class] pathPattern:pathNotation method:RKRequestMethodGET];
[self.objectManager.router.routeSet addRoute:notationRoute];

RKResponseDescriptor *notationMappingDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:notationMapping method:RKRequestMethodGET pathPattern:pathNotation keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

和获取：

[[RKObjectManager sharedManager] getObject:nil path:path parameters:params success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
        //do something
    } failure:^(RKObjectRequestOperation *operation, NSError *error) {
        //do something
    }];

Answer 2

你的路径不正确，另外，当运行你的代码我不得不使用方法时：

+ (instancetype)responseDescriptorWithMapping:(RKMapping *)mapping
                                       method:(RKRequestMethod)method
                                  pathPattern:(NSString *)pathPattern
                                      keyPath:(NSString *)keyPath
                                  statusCodes:(NSIndexSet *)statusCodes

您正在使用的那个说它已被弃用。我猜你可能使用的是旧版本的 restkit。

这是有效的代码：

NSURL *baseURL = [NSURL URLWithString:@"http://www.krzysztofkurzawa.com"];
RKObjectManager *objectManager = [RKObjectManager managerWithBaseURL:baseURL];

RKLogConfigureByName("RestKit/Network", RKLogLevelTrace);
RKLogConfigureByName("RestKit/ObjectMapping", RKLogLevelTrace);

RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[mapping addAttributeMappingsFromArray:@[@"title"]];

RKResponseDescriptor *rk = [RKResponseDescriptor responseDescriptorWithMapping:mapping method:RKRequestMethodGET pathPattern:@"/articles/" keyPath:@"articles" statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:rk];

RKObjectMapping *mapping2 = [RKObjectMapping mappingForClass:[NSMutableDictionary class]];
[mapping2 addAttributeMappingsFromArray:@[@"title"]];

RKResponseDescriptor *rk2 = [RKResponseDescriptor responseDescriptorWithMapping:mapping2  method:RKRequestMethodGET pathPattern:@"/articles/:id/" keyPath:nil statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];
[objectManager addResponseDescriptor:rk2];


[[RKObjectManager sharedManager] getObjectsAtPath:@"/articles/" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    NSLog(@"%@", [mappingResult firstObject]);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {

}];

[[RKObjectManager sharedManager] getObjectsAtPath:@"/articles/1/" parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
    NSLog(@"%@", [mappingResult firstObject]);
} failure:^(RKObjectRequestOperation *operation, NSError *error) {

}];

RestKit 简单 JSON，错误的 pathPAttern？

RestKit simple JSON, bad pathPAttern?

ios

restkit