CODEWITHSUNDEEP
iosswiftfirebasefirebase-realtime-database
Clément Janssens
Clément Janssens

Reputation: 23

Multiple and child query in Firebase SWIFT

I would like doing request in Firebase with multiple query but too in child nodes.

Screen : Firebase screen

I would like create request to get "lat" and compare with 2 values. For exemple : SELECT * FROM users WHERE lat >= 1 && lat <= 2

First filter with "lat" and then, "lng".

How could I perform such a query on Firebase?

Upvotes: 0

Views: 1587

Answers (1)

Frank van Puffelen
Frank van Puffelen

Reputation: 598708

You can only filter on a single property in a Firebase query. See http://stackoverflow.com/questions/26700924/query-based-on-multiple-where-clauses-in-firebase for more information on this.

Luckily somebody came up with a brilliant way to combine lat and lon values into a single value, called a geohash. And there is an open-source library called Geofire that builds on the Firebase Database SDK to allows, calculating, writing and querying such geohash values. I recommend that you check it out: https://github.com/firebase/geofire-objc

Upvotes: 2

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