Ios 使用RestKit 0.20的JSON数组进行CoreData映射？

我有一个

JSON

，如下所示

{
    "code":0,
    "response":{
        "Cirqit":{
            "Cirqit":{...},
            "Owner":{...},
            "CirqitMembers":[
                {
                    "User":{...},
                    "CirqitMember":{...}
                },
                {
                    "User":{...},
                    "CirqitMember":{...}
                }
            ]
        }
    }
}

我的映射代码如下：

   //User mapping
    RKEntityMapping *userMapping = [RKEntityMapping mappingForEntityForName:@"User" inManagedObjectStore:apiInterface.managedObjectStore];
    NSDictionary *userMappingDict = @{@"id": @"id",@"firstname": @"firstname"};
    [userMapping addAttributeMappingsFromDictionary:userMappingDict];

    //Member Status Mapping
    RKEntityMapping *membStatusMapping = [RKEntityMapping mappingForEntityForName:@"MemberStatusInfo" inManagedObjectStore:apiInterface.managedObjectStore];
    NSDictionary *membStatusMappingDict = @{@"id": @"id",@"user_id": @"user_id"};    [membStatusMapping addAttributeMappingsFromDictionary:membStatusMappingDict];

    //Cirqit Member Mapping
    RKEntityMapping *membMapping = [RKEntityMapping mappingForEntityForName:@"CirqitMember" inManagedObjectStore:apiInterface.managedObjectStore];
    NSDictionary *membMappingDict = @{ @"CirqitMember.id":@"id" };
    [membMapping addAttributeMappingsFromDictionary:membMappingDict];
    [membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"response.Cirqit.CirqitMembers.User" toKeyPath:@"memberStatus" withMapping:userMapping]];
    [membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"response.Cirqit.CirqitMembers.CirqitMember" toKeyPath:@"memberDetails" withMapping:membStatusMapping]];
    membMapping.identificationAttributes = @[@"id"];

    //Cirqit Mapping
    RKEntityMapping *cirqitMapping = [RKEntityMapping mappingForEntityForName:@"Cirqit" inManagedObjectStore:apiInterface.managedObjectStore];
    NSDictionary *cirqitMappingDict = @{   @"response.Cirqit.Cirqit.id":@"id",
                                 @"response.Cirqit.Cirqit.allow_invite": @"allow_invite"};    
    [cirqitMapping addAttributeMappingsFromDictionary:cirqitMappingDict];
    [cirqitMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"response.Cirqit.CirqitMembers" toKeyPath:@"cirqitMembers" withMapping:membMapping]];
    cirqitMapping.identificationAttributes = @[@"id"];

    NSIndexSet *statusCodes = RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful);
    RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:cirqitMapping pathPattern:nil keyPath:nil statusCodes:statusCodes];
    operation = [apiInterface getOperationWithRequest:request forResponseDescriptors:@[responseDescriptor]];
    [operation start];

在这里，membMapping、cirqitMapping工作正常。但是membstatemapping、userMapping不起作用。实际上没有映射错误，但没有发生映射

下面是我的托管对象类：

@interface CirqitMember : NSManagedObject

@property (nonatomic, retain) NSNumber * id;
@property (nonatomic, retain) MemberStatusInfo *memberDetails;
@property (nonatomic, retain) User *memberStatus;

@end

---

添加关系映射时，映射中的键路径应该相对于容器，而不是相对于根。目前您有：

[membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"response.Cirqit.CirqitMembers.User" toKeyPath:@"memberStatus" withMapping:userMapping]];
[membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"response.Cirqit.CirqitMembers.CirqitMember" toKeyPath:@"memberDetails" withMapping:membStatusMapping]];

改为：

[membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"User" toKeyPath:@"memberStatus" withMapping:userMapping]];
[membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"CirqitMember" toKeyPath:@"memberDetails" withMapping:membStatusMapping]];

这也应适用于：

[cirqitMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"response.Cirqit.CirqitMembers" toKeyPath:@"cirqitMembers" withMapping:membMapping]];

---

但这可能是因为JSON的结构才起作用的…

您有一个不起作用的映射吗？它做错了什么？显示您拥有的内容。RKEntityMapping*userMapping=[RKENTITYMAPPINGForEntityForName:@“用户”在managedObjectStore:managedObjectStore]；[membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@“response.Cirqit.CirqitMembers.User”tokePath:@“User”with mapping:userMapping]；由于对象位于JSON数组中，因此是否存在任何问题。除此之外，所有其他映射都可以正常工作。您的

userMapping

不显示正在设置的任何映射。。。另外，如果您需要真正的帮助，请提供所有映射和响应描述符…非常感谢…[membMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@“response.Cirqit.CirqitMembers.CirqitMember”tokePath:@“memberDetails”with mapping:MembStateMapping]；仍然没有映射。可能是我的逻辑错误。我来看看。你评论中的关键路径仍然是

@“response.Cirqit.CirqitMembers.CirqitMember”

。它不需要在

cirqitMapping

中已经处理过的所有keypath元素。对不起，我已经在我的程序中将其更正为@“CirqitMember”。但是仍然不起作用。。这只剩下rest，一切都很好。看起来映射字典在使用完整密钥路径时也有类似的问题。我发现了这个问题。”addPropertyMapping'将仅适用于一个'RKRelationshipMapping'。我先给哪一个，效果很好。