Question

我希望拉入我最近的签到，以及找到地名。我目前要求user_status权限。我首先请求这样的数据：

-(void) makeCheckinRequest{
NSString *query =
@"{"
@"'checkins':'SELECT coords, page_id, timestamp FROM checkin WHERE author_uid= me()',"
@"'places':'SELECT name FROM place WHERE page_id IN (SELECT page_id FROM #checkins)',"
@"}";

NSDictionary *queryParam =
[NSDictionary dictionaryWithObjectsAndKeys:query, @"q", nil];
// Make the API request that uses FQL
[FBRequestConnection startWithGraphPath:@"/fql"
                             parameters:queryParam
                             HTTPMethod:@"GET"
                      completionHandler:^(FBRequestConnection *connection,
                                          id result,
                                          NSError *error) {
                          if (error) {
                              NSLog(@"Error: %@", [error localizedDescription]);
                          } else {
                              [self extractRelevantRecentCheckinsFor:result];
                              NSLog(@"Result: %@", result);
                          }
                      }];

}

...然后我拦截了这个方法返回的数据：

-(void) extractRelevantRecentCheckinsFor:(id) graphObject{

NSDictionary *resultDict = (NSDictionary *)graphObject;
NSArray *data = [resultDict objectForKey:@"data"];
for (FBGraphObject *friendObj in data) {
    NSDate *date = [NSDate dateWithTimeIntervalSince1970:
                    [[friendObj objectForKey:@"timestamp"] intValue]];
    DLog(@"checkin date is %@", [[theStoryline.common dayAndTime] stringFromDate:date]);
}

}

问题是data包含两个FBGraphObjects，其中包含不匹配的项目数。密钥名称为FBGraphObject的{{1}}有15个对象，所有对象都有有效坐标。

密钥名称为checkins的{{1}}有14个对象。

你怎么可能得到不同的数组大小？

Answer 1

找到答案：事实证明，Facebook会在每次办理登机手续时向您返回“登记入住”清单，但是（至少我写了多次查询的方式）它会返回独特的“地方”列表。这意味着我曾两次检查过一个地方。

签到次数与地点数不匹配

1 个答案: