RKObjectMapping 中的混淆设置映射 - Rest

Question

请帮助使用 RestKit 进行设置映射，我不知道该怎么做。

我的 JSON 是这样的

{
"result":{
    "success":"1",
    "message":"You logged in successfully.",
    "data":{
        "user_id":"1",
        "firstname":"somefirstname",
        "lastname":"somelastname",
        "username":"someusername",
        "country_id":"someid",
        "country_name":"somecountry",
        "phone":"1234567890",
        "status":"active"
        }
    }
}

到目前为止我所做的是

RKObjectMapping *loginMapping = [RKObjectMapping mappingForClass:[Login class]];
[loginMapping addAttributeMappingsFromDictionary:@{ @"user_id":@"intUserID", @"firstname":@"strFirstName", @"lastname":@"strLastName"}];        
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:loginMapping
                                                                                            method:RKRequestMethodGET
                                                                                       pathPattern:@"PathTOLogin"
                                                                                          keyPath:@"result.data"
                                                                                      statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

[AFNetworkActivityIndicatorManager sharedManager].enabled = YES;
NSURL *baseURL = [NSURL URLWithString:kAPIBaseURLString];
AFHTTPClient* client = [[AFHTTPClient alloc] initWithBaseURL:baseURL];
RKObjectManager *objectManager = [[RKObjectManager alloc] initWithHTTPClient:client];
Login *loginObject = [[Login alloc] init];
[objectManager getObject:loginObject path:kUserLogin parameters:params success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
}];

问题就像有时 JSON 响应可能是这样的

{
"result":{
    "success":"0",
    "message":"Invalid Username or Password",      
    } 
}

所以会报错

Error Domain=org.restkit.RestKit.ErrorDomain Code=1001

所以我想在 Model 类中添加另外 2 个属性作为成功/消息以及所有其他属性，但我坚持设置自定义映射，因为这些属性位于根目录上，而其他属性位于关键路径“result.data”中。

有人可以帮忙吗？

Answer 1

您应该将您的登录映射更改为：

RKObjectMapping *loginMapping = [RKObjectMapping mappingForClass:[Login class]];
[loginMapping addAttributeMappingsFromDictionary:@{ @"success":@"success", @"message":@"message", @"data.user_id":@"intUserID", @"data.firstname":@"strFirstName", @"data.lastname":@"strLastName"}];        
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:loginMapping
                                                                                        method:RKRequestMethodGET
                                                                                   pathPattern:@"PathTOLogin"
                                                                                       keyPath:@"result"
                                                                                   statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

基本上，从响应描述符的键路径中删除“数据”，然后在映射键路径中使用它。

Answer 2

您可以先通过检查以下条件来检查数据是否存在

if([yourDictionary valueForKeyPath:@"result.data"]){

   RKObjectMapping *loginMapping = [RKObjectMapping mappingForClass:[Login class]];
[loginMapping addAttributeMappingsFromDictionary:@{ @"user_id":@"intUserID", @"firstname":@"strFirstName", @"lastname":@"strLastName"}];        
RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:loginMapping
                                                                                            method:RKRequestMethodGET
                                                                                       pathPattern:@"PathTOLogin"
                                                                                          keyPath:@"result.data"
                                                                                      statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

[AFNetworkActivityIndicatorManager sharedManager].enabled = YES;
NSURL *baseURL = [NSURL URLWithString:kAPIBaseURLString];
AFHTTPClient* client = [[AFHTTPClient alloc] initWithBaseURL:baseURL];
RKObjectManager *objectManager = [[RKObjectManager alloc] initWithHTTPClient:client];
Login *loginObject = [[Login alloc] init];
[objectManager getObject:loginObject path:kUserLogin parameters:params success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
} failure:^(RKObjectRequestOperation *operation, NSError *error) {
}];

}
else{
    NSLog(@"No data available");
}

希望这会对您有所帮助。