Restkit Cache策略20.x.

Question

非常失望的是,restkit已经删除了新版本中的缓存策略.

我们如何在新版本中实现相同的目标？我们是否可以使用现有的restkit类或任何其他方式来实现相同的？

Answer 1

我通过继承RKObjectManager解决了这个问题(如nik答案中链接的第2点所述,但在"Customization&Subclassing Notes"下的文档中有更详细的说明).

我在子类中添加了以下方法,并且没有更多缓存:

- (NSMutableURLRequest *)requestWithObject:(id)object method:(RKRequestMethod)method path:(NSString *)path parameters:(NSDictionary *)parameters
{
    NSMutableURLRequest *request = [super requestWithObject:object method:method path:path parameters:parameters];
    request.cachePolicy = NSURLRequestReloadIgnoringLocalAndRemoteCacheData;
    return request;
}

Answer 2

您可以使用 NSMutableURLRequest 创建 RKManagedObjectRequestOperation 并设置 request.cachePolicy：

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path relativeToURL:self.baseURL]];

request.cachePolicy = NSURLRequestReloadIgnoringLocalAndRemoteCacheData;

RKManagedObjectRequestOperation *operation = [[RKManagedObjectRequestOperation alloc] initWithRequest:request responseDescriptors:[RKObjectManager sharedManager].responseDescriptors];
operation.managedObjectContext = [[RKManagedObjectStore defaultStore] newChildManagedObjectContextWithConcurrencyType:NSPrivateQueueConcurrencyType tracksChanges:YES];
operation.managedObjectCache = [RKManagedObjectStore defaultStore].managedObjectCache;

[operation setCompletionBlockWithSuccess:success failure:failure];

NSOperationQueue *operationQueue = [NSOperationQueue new];
[operationQueue addOperation:operation];