iOS SDK中的Facebook FQL多重查询

Question

我正在寻找有关如何通过iOS SDK向Facebook发送多查询fql请求的一些文档或示例代码.我找到了一些较旧的样品,但它们对我不起作用.我已经填充了NSDictionary查询,我尝试发送请求 [[FBRequest requestWithDelegate:self] call:@"facebook.fql.multiquery" params:params];,如我已阅读的示例中所述,但我得到一个"无法识别的选择器发送到类"错误,我无法在FBRequest.h中找到"requestWithDelegate"方法无论是.它被弃用了吗？对此的一些帮助将非常感谢!

Answer 1

// Construct your FQL Query 
NSString* fql = [NSString stringWithFormat:@"SELECT uid, name, hometown_location from user where uid IN (SELECT uid2 FROM friend WHERE uid1=%lld) and hometown_location != '' ORDER BY rand() limit 4", facebookId];

// Create a params dictionary
NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObject:fql forKey:@"query"];

// Make the request 
[facebook requestWithMethodName:@"fql.query" andParams:params andHttpMethod:@"GET" andDelegate:self];

将使用响应调用委托FBRequestDelegate.根据您的需要,您可以执行以下操作:

- (void)request:(FBRequest*)request didLoad:(id)result {
    NSLog(@"didLoad() received result: %@", result);
}

facebook对象创建如下:

Facebook * facebook = [[Facebook alloc] initWithAppId:kAppID];

有关如何设置的更多信息,请访问:https: //developers.facebook.com/docs/guides/mobile/

根据您的FQL查询,您将需要用户的权限.请在此处查看权限列表:https: //developers.facebook.com/docs/authentication/permissions/

这里还有一个用于FQL查询的测试控制台:https: //developers.facebook.com/docs/reference/rest/fql.query/

如果你想做一个Multiquery而不是一个查询,它看起来像:

NSString* fql1 = [NSString stringWithFormat:
    @"select uid2 from friend where uid1 == %lld order by rand() limit 10", facebookId];
NSString* fql2 = [NSString stringWithFormat:
    @"select uid, name from user where uid in (select uid2 from #queryID)"];
NSString* fql3 = [NSString stringWithFormat:
    @"select uid, status_id, message from status where uid in (select uid from #queryName) limit 1"];
NSString* fql = [NSString stringWithFormat:
    @"{\"queryID\":\"%@\",\"queryName\":\"%@\",\"queryStatus\":\"%@\"}",fql1,fql2,fql3];

NSDictionary* params = [NSDictionary dictionaryWithObject:fql forKey:@"queries"];   

[facebook call:@"fql.multiquery" params:params];