1

我正在使用的 REST 服务有两种不同的响应模式。

{
success: true,
data: { //all data goes here}
}

或者

{
success: false,
error: "Error",
message: "some message"
}

我正在尝试将 RESTKit 配置为返回我为存储错误响应而创建的某个错误对象，以及为 success=true 情况配置的类（基于 URL）。

我正在尝试使用 RKDynamicMapping 根据“成功”的价值来完成此任务。

   - (RKDynamicMapping *)createCompatibleMapping:(NSDictionary *)successDictionary  withClass:(Class) class{
        NSMutableDictionary *withSuccessDictionary = [NSMutableDictionary dictionaryWithDictionary:successDictionary];
        [withSuccessDictionary addEntriesFromDictionary:@{@"success" : @"success"}];

    RKObjectMapping *successMapping = [RKObjectMapping mappingForClass:class];
    [successMapping addAttributeMappingsFromDictionary:withSuccessDictionary];

    RKObjectMapping *restErrorMapping = [RKObjectMapping mappingForClass:[RESTErrorObject class]];
    [restErrorMapping addAttributeMappingsFromDictionary:@{@"success" : @"success", @"error" : @"errorString", @"message" : @"message"}];

    RKDynamicMapping *dynamicMapping = [RKDynamicMapping new];


    [dynamicMapping addMatcher:[RKObjectMappingMatcher matcherWithKeyPath:@"success" expectedValue:[NSNumber numberWithBool:YES ] objectMapping:successMapping]];
    [dynamicMapping addMatcher:[RKObjectMappingMatcher matcherWithKeyPath:@"success" expectedValue:[NSNumber numberWithBool:NO ] objectMapping:restErrorMapping]];
    return dynamicMapping;
}

然后我将它添加到这样的响应描述符中： 

RKResponseDescriptor * cardDetailsResponseDescriptor2  = [RKResponseDescriptor responseDescriptorWithMapping:cardDetailsResponseMapping method:RKRequestMethodGET
                                                                                                    pathPattern:@"services/details/:cardNumber" keyPath:@"data"
                                                                                                    statusCodes:RKStatusCodeIndexSetForClass(RKStatusCodeClassSuccessful)];

[_objectManager.router.routeSet addRoute:[RKRoute routeWithName:@"getCardDetailsRoute" pathPattern:@"services/details/:cardNumber" method:RKRequestMethodGET]];

然后我打电话 

[self.objectManager getObjectsAtPathForRouteNamed:@"getCardDetailsRoute" object:card parameters:@{@"token" : authToken} success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {

我知道这是一个很大的帖子，可能很难理解。感谢您的耐心：D 对我应该做什么感到困惑。

更改 REST API 并不是一个真正的选择。

4

1 回答 1

0

尝试将预期值设置为@"true" @"false"。我认为这些值在动态映射运行时将是字符串，并且它们只会在映射期间转换为 BOOL，并且如果目标类型是 BOOL。

于 2013-08-01T18:50:38.633 回答