我使用GeoFire根据用户的当前位置查询Firebase中的数据。我得到了:
使用未指定的索引。考虑在/来添加“.indexOn”:“g” 您的安全规则以获得更好的性能
在控制台中。以下是我的查询代码:
ref = Database.database().reference()
let geoFire = GeoFire(firebaseRef: ref)
let center = CLLocation(latitude: (userLocation.coordinate.latitude), longitude: (userLocation.coordinate.longitude))
let circleQuery = geoFire?.query(at: center, withRadius: 1)
circleQuery?.observe(.keyEntered, with: { key, location in
guard let key = key else { return }
geoFire?.getLocationForKey(key, withCallback: { (location, error) in
let myAnnotation: MKPointAnnotation = MKPointAnnotation()
myAnnotation.coordinate = CLLocationCoordinate2DMake((location?.coordinate.latitude)!, (location?.coordinate.longitude)!);
self.currentLocationMapView.addAnnotation(myAnnotation)
})
self.ref.child("services").child(key).observeSingleEvent(of: .value, with: { (snapshot) in
let value = snapshot.value as? NSDictionary
let servicename = value?["name"] as? String ?? ""
let address = value?["address"] as? String ?? ""
self.nameArray.append(servicename)
self.addressArray.append(address)
if (self.nameArray.count > 0) {
self.customTableView.reloadData();
}
})
})
我的Firebase规则标签包含以下设置。
"rules": {
".read": true,
".write": "auth != null"
}
无论我在哪里插入“.indexOn”:“g”,我都收到错误,无法保存规则。有什么帮助吗?
答案 0 :(得分:2)
"rules": {
".read": true,
".write": "auth != null",
".indexOn": ["g"]
}