Question

我需要从User类中创建两种不同类型的POST。

//JSON Type A
{
    "password":"12345",
    "email":"test@gmail.com"
}

//JSON Type B
{
   "user":{
      "Password":"12345",
      "Email":"sample@gmail.com"
   }
}

我尝试制作两个请求描述符并将它们添加到我的对象管理器中，但是我收到了错误

“无法为同一对象类添加请求描述符现有的请求描述符。“

我的代码

@interface User : NSObject

@property (nonatomic, retain) NSString * userID;
@property (nonatomic, retain) NSString * email;
@property (nonatomic, retain) NSString * password;
@property (nonatomic, retain) NSString * firstName;
@property (nonatomic, retain) NSString * lastName;

@end

- (void)setupUserMapping:(RKObjectManager *)objectManager {

    // Setup user response mappings
    RKObjectMapping *userMapping = [RKObjectMapping mappingForClass:[User class]];
    [userMapping addAttributeMappingsFromDictionary:@{
     @"ID" :@"userID",
     @"Email" : @"email",
     @"Password" : @"password",
     @"FirstName" : @"firstName",
     @"LastName" : @"lastName",
     }];


    RKResponseDescriptor *responseDescriptorAuthenticate = [RKResponseDescriptor responseDescriptorWithMapping:userMapping
                                                                                       pathPattern:@"/Authenticate"
                                                                                           keyPath:nil
                                                                                       statusCodes:[NSIndexSet indexSetWithIndex:200]];


    RKResponseDescriptor *responseDescriptorRegister = [RKResponseDescriptor responseDescriptorWithMapping:userMapping
                                                                                                   pathPattern:@"/Register"
                                                                                                       keyPath:nil
                                                                                                   statusCodes:[NSIndexSet indexSetWithIndex:200]];
    [objectManager addResponseDescriptor:responseDescriptorRegister];
    [objectManager addResponseDescriptor:responseDescriptorAuthenticate];

    // Setup user request mappings
    RKObjectMapping* userRequestMappingForRegister = [RKObjectMapping requestMapping];
    [userRequestMappingForRegister addAttributeMappingsFromDictionary:@{
     @"email" : @"Email",
     @"password" : @"Password",
     @"firstName" : @"FirstName",
     @"lastName" : @"LastName",
     }];
    RKRequestDescriptor *requestDescriptorForRegister = [RKRequestDescriptor requestDescriptorWithMapping:userRequestMappingForRegister objectClass:[User class] rootKeyPath:@"user"];


    RKObjectMapping* userRequestMappingForAuthenticate = [RKObjectMapping requestMapping];
    [userRequestMappingForAuthenticate addAttributeMappingsFromDictionary:@{
     @"userID" :@"ID",
     @"email" : @"email",
     @"password": @"password"
     }];
    RKRequestDescriptor *requestDescriptorForAuthenticate = [RKRequestDescriptor requestDescriptorWithMapping:userRequestMappingForAuthenticate objectClass:[User class] rootKeyPath:nil];

    [objectManager addRequestDescriptor:requestDescriptorForRegister];
    [objectManager addRequestDescriptor:requestDescriptorForAuthenticate];
}

有没有人知道如何在不为这些请求创建单独的类的情况下解决此问题？

感谢任何帮助。

感谢。

Answer 1

您可以使用动态映射来切换序列化行为。如果这是一个足够普遍的问题，我们可以想象地将路径匹配添加到请求描述符。我对这样的功能没有太多要求。

有一个示例说明如何在单元测试中使用动态映射和请求：https://github.com/RestKit/RestKit/blob/master/Tests/Logic/ObjectMapping/RKObjectParameterizationTest.m#L495-L534

Answer 2

对于多个请求描述符，我声明了一个新的模型类，该模型类具有与较早的模型相同的数据成员，然后在添加请求描述符而不是较早的模型时对其进行了引用。

    RKObjectMapping *mapping = [RKObjectMapping mappingForClass:[CMAGoogleUserDataModel class]];

这里新创建的类为“ CMAGoogleUserDataModel”

注意：我不确定这是否是优化的，但确实解决了我的用例。

在Restkit 0.2中为给定类添加两个请求描述符

2 个答案: