IndexOn on firebase Root to query entire database swift 3 - ios

Question

I am trying to query by name inside firebase database, I want to return all the names matching the query. But I can't seem to get it to work, I am getting error Consider adding ".indexOn": "name" at / to your security rules.
Security Rules:
{
"rules": {
".read": "true",
".write": "true",
"goals_new": {
".indexOn": ["name"]
}
}
}
I Can retrieve the names for specific child like this:
let query = ref.child("goals_new").queryOrdered(byChild:"name").queryEqual(toValue: name)
query.observe(.childAdded) { (snapshot) in
// if let values =
if let values = snapshot.value as? [String:String] {
print(values)
print(values["name"]?.count ?? "")
}
}
But I want to retrieve all the names in the database that matches the query
Database Structure:
"goals_new" : [ null, {
"name" : "Eric thomas",
"pic" : “…….”,
"title" : "Be Obsessed with your Goals",
"url" : “……”
},
{
"name" : "Bob Proctor",
"pic" : “……….",
"title" : "Goal Achievement System",
"url" : “………”
},
Any help would be appreciated.

Answer 1

Consider adding ".indexOn": "name" at / to your security rules <- Is only a warning so you don't have to worry much about that.
I'm seeing perhaps an error. Looks like you're using an array to store your objects of 'goals_news' because of the keys are numbers 1, 2, etc... Maybe that's is messing with your query, you have to change them for string keys like every time you add one use firebase method childByAutoID().
Better use .value instead of .childAdded method so you can get all the objects that matches the name, something like this:
let query = ref.child("goals_new").queryOrdered(byChild:"name").queryEqual(toValue: name)
query.observe(.value) { (snapshot) in
guard snapshot.exists() && snapshot.hasChildren() else {return}
for snap in snapshot.children {
var currentSnapValue = (snap as! DataSnapshot).value as! [String: String]
print("Name: \(currentSnapValue["name"])")
}
}
That way you're getting all the objects that matches the name