I have a map like this in Firestore:
ratings:{
id1:{value:5,...rest of map}
id2:{value:3,...rest of map}
}
How could i calculate the sum of values (5 3=8) ?
CodePudding user response:
There are no loop operations in the security rules programming model, as those wouldn't scale. So if you want to write a rule against the sum of the ratings, you'll have to store that sum as an explicit value in the document.