Restkit Cache发布iOS保存更新属性

我正在为IOS构建一个利用restkit的应用程序。我想我的缓存区有问题。我为初次启动设置了应用程序,以获取大量数据,并使用restkit将其映射到核心数据中。一切正常,数据显示在表视图中。现在,如果我让应用程序进入后台,然后再次单击该应用程序以继续,我会调用相同的方法来加载数据,但这次我将版本#发送到服务器,以仅获取自上次提取以来更改、添加或删除的对象。这一切都很好,但当我去显示这些对象时,我得到的数据与第一次提取时相同。我相信这可能是缓存问题的解决,但我不知道。帮助是感激的。

RKObjectManager*对象管理器=[RKObjectManager对象管理器WithBaseURLString:@“http://link.com“]; objectManager.client.requestQueue.showsNetworkActivityIndicatorWhenBusy=是; objectManager.objectStore=[RKManagedObjectStore objectStoreWithStoreFilename:@“34453434.sqlite”]; RKManagedObjectMapping*cliffMapping=[RKManagedObjectMapping mappingForClass:[Cliff class]inManagedObjectStore:objectManager.objectStore];

cliffMapping.primaryKeyAttribute = @"cliffID";
cliffMapping.rootKeyPath = @"cliffs";
[cliffMapping mapKeyPath:@"name" toAttribute:@"name"];
[cliffMapping mapKeyPath:@"cliffId" toAttribute:@"cliffID"];
[cliffMapping mapKeyPath:@"description" toAttribute:@"cliffDescription"];
[cliffMapping mapKeyPath:@"notes" toAttribute:@"notes"];
[cliffMapping mapKeyPath:@"city" toAttribute:@"city"];
[cliffMapping mapKeyPath:@"intensity" toAttribute:@"intensity"];
[cliffMapping mapKeyPath:@"latitude" toAttribute:@"latitude"];
[cliffMapping mapKeyPath:@"height" toAttribute:@"height"];
[cliffMapping mapKeyPath:@"longitude" toAttribute:@"longitude"];
[cliffMapping mapKeyPath:@"zipcode" toAttribute:@"zipcode"];
[objectManager.mappingProvider setMapping:cliffMapping forKeyPath:@"cliffs"];
[objectManager.mappingProvider addObjectMapping:cliffMapping];

RKManagedObjectMapping* stateMapping = [RKManagedObjectMapping mappingForClass:[State class] inManagedObjectStore:objectManager.objectStore];
stateMapping.rootKeyPath = @"States";
stateMapping.primaryKeyAttribute = @"stateID";
[stateMapping mapKeyPath:@"stateId" toAttribute:@"stateID"];
[stateMapping mapKeyPath:@"name" toAttribute:@"name"];
[stateMapping mapKeyPath:@"version" toAttribute:@"sversion"];
[stateMapping mapKeyPath:@"cliffAmount" toAttribute:@"cliffAmount"];
[stateMapping mapRelationship:@"cliffs" withMapping:cliffMapping];
[objectManager.mappingProvider setMapping:stateMapping forKeyPath:@"States"];
[objectManager.mappingProvider addObjectMapping:stateMapping];
[objectManager loadObjectsAtResourcePath:@"/Application/getEverything" usingBlock:^(RKObjectLoader *loader){
    loader.serializationMIMEType = RKMIMETypeJSON;
    loader.resourcePath = @"/Application/getEverything";
    loader.method = RKRequestMethodPOST;
    loader.delegate = self;
    loader.objectMapping = stateMapping;
}];