GeoFire更新在同一个电话 [英] GeoFire update in same call

问题描述

我正在创建一个Firebase更新字典，如下所示：

  NSDictionary * update = @ {
 key1：value1 ，
 key2：value 2，
 key3：value 3 
}; 
 
 [baseRef updateChildValues：update withCompletionBlock：^（NSError * error，Firebase * ref）{
 // complete 
}]; 
  

但是我也想在同一个更新中保存一个位置的坐标，做2个独立的电话。我已经看过这个 Github页面，但是我无法弄清楚如何做这样的事情

  [geoFire setLocation：[[CLLocation alloc] initWithLatitude：37.7853889 longitude： - 122.4056973] 
 forKey：@firebase-hq]; 
  

和我的第一个例子一样吗？

有没有这样做的首选方法，还是我需要自己做些什么？例如更改库或将 CLLocation 设置为任何其他变量的更新？就像这样：

pre $ - （void）setLocation：（CLLocation *）location forRef：（Firebase *）ref
{
NSNumber * lat = [NSNumber numberWithDouble：location.coordinate.latitude];
NSNumber * lng = [NSNumber numberWithDouble：location.coordinate.longitude];
NSDictionary * update = @ {@location：@ [lat，lng]};
$ b $ ref [setValue：update withCompletionBlock：^（NSError * error，Firebase * ref）{
// complete
}];



编辑

这是一段与我的项目非常相似的代码：

   - （void）uploadUserId ：（NSString *）userId withPlace：（GMSPlace *）place 
 {
 Firebase * ref = [[Firebase alloc] initWithUrl：baseRefUrl]; 
 
 NSNumber * lat = [NSNumber numberWithDouble：place.coordinate.latitude]; 
 NSNumber * lng = [NSNumber numberWithDouble：place.coordinate.longitude]; 
 NSString * geoHash = [GFGeoHash newWithLocation：place.coordinate] .geoHashValue; 
 
 NSDictionary * locationDetails = @ {@l：@ [lat，lng]，@g：geoHash}; 
 
 NSDictionary * update = @ {
 [NSString stringWithFormat：@/ users /％@ /，userId]：locationDetails 
}; 
 
 [ref updateChildValues：update withCompletionBlock：^（NSError * error，Firebase * ref）{
 // complete 
}]; 
 
  

解决方案

：

$ p $ NSDictionary * locationDetails = @ {
@l：@ [lat，lng]，
@g：geoHash，
@priority：geoHash
};


您还将设置节点的优先级，这是GeoFire所需的（afaik）。 / p>

I'm creating a Firebase update dictionary like so

NSDictionary *update = @{
                        key1 : value1,
                        key2 : value 2,
                        key3 : value 3
                        };

[baseRef updateChildValues:update withCompletionBlock:^(NSError *error, Firebase *ref) {
            // complete
        }];

But I'd also like to save the coordinates of a location within the same update, aka not having to do 2 separate calls. I've taken a look at this Github page but I can't figure out how to do something like this

[geoFire setLocation:[[CLLocation alloc] initWithLatitude:37.7853889 longitude:-122.4056973]
          forKey:@"firebase-hq"];

in the same update as my first example?

Is there a preferred way to do this, or do I need to make something myself? E.g change the library or set a CLLocation to the update as any other variable? Something like this:

-(void)setLocation:(CLLocation *)location forRef:(Firebase *)ref
{
    NSNumber *lat = [NSNumber numberWithDouble:location.coordinate.latitude];
    NSNumber *lng = [NSNumber numberWithDouble:location.coordinate.longitude];
    NSDictionary *update = @{ @"location" : @[ lat, lng ] };

    [ref setValue:update withCompletionBlock:^(NSError *error, Firebase *ref) {
        // complete
    }];
}

Edit

here's a piece of code that's very similar to that in my project:

-(void)uploadUserId:(NSString *)userId withPlace:(GMSPlace *)place
{
    Firebase *ref = [[Firebase alloc] initWithUrl:baseRefUrl];

    NSNumber *lat = [NSNumber numberWithDouble:place.coordinate.latitude];
    NSNumber *lng = [NSNumber numberWithDouble:place.coordinate.longitude];
    NSString *geoHash = [GFGeoHash newWithLocation:place.coordinate].geoHashValue;

    NSDictionary *locationDetails = @{ @"l" : @[ lat, lng ], @"g" : geoHash};

    NSDictionary *update = @{
                                [NSString stringWithFormat:@"/users/%@/", userId] : locationDetails
                            };

    [ref updateChildValues:update withCompletionBlock:^(NSError *error, Firebase *ref) {
            // complete
        }];
}

解决方案

If you update your dictionary to:

    NSDictionary *locationDetails = @{ 
        @"l" : @[ lat, lng ], 
        @"g" : geoHash,
        @".priority": geoHash
    };

You will also be setting the priority of the node, which is (afaik) needed for GeoFire.

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