CODEWITHSUNDEEP
firebaseswift3firebase-realtime-database
grabury
grabury

Reputation: 5559

Firebase queryEqual with observeSingleEvent

I want to find set times for a particular artist.

I have a list of Artists

artistRef = FIRDatabase.database().reference(withPath: "artists")

I have a list of Sets (times)

showRef = FIRDatabase.database().reference(withPath: "sets")

I want to get all artist 1 set times: [set1, set3]

The following snapshot is returned as null:

showRef.queryEqual(toValue: artist?.key, childKey: "artistKey").observeSingleEvent(of: .value, with: { snapshot in
...           
})

Is there anything that I'm doing obviously wrong?

Upvotes: 0

Views: 707

Answers (1)

Nirav D
Nirav D

Reputation: 72410

Try to use queryOrdered(byChild:) before the queryEqual(toValue:), like this.

showRef.queryOrdered(byChild: "artistKey").queryEqual(toValue: artist?.key).observeSingleEvent(of: .value, with: { snapshot in
     for set in snapshot.children {
         print("\((set as! FIRDataSnapshot).value)")
     }
})

Upvotes: 4

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