CODEWITHSUNDEEP
swiftfirebasefirebase-realtime-databasefirebase-cloud-messaging
Tom Odell
Tom Odell

Reputation: 105

Observing data that saved with childByAutoId

I am using childByAutoId to save each message in Firebase.

now when observing data, I want each query to get 10 older messages using .queryStarting(atValue: ) .queryEnding(atValue: )

Is it possible with childByAutoId? Thanks

Upvotes: 1

Views: 79

Answers (1)

Jay
Jay

Reputation: 35657

Sure. But that's not generally best practice - don't query by the key. Query by a child in the node.

messages
  -Y8hji98jasdjkas
    datestamp: "20170405"
  -Yin99s9ks9kksok
    datestamp: "20170407"
  -Y7iijs9jsk9999j
    datestamp: "20170409"

queryOrdered(byChild: "datestamp").queryStarting(atValue: "20170405")
                                  .queryEnding(atValue: "20170408")

will retrive these two older child nodes

  -Y8hji98jasdjkas
    datestamp: "20170405"
  -Yin99s9ks9kksok
    datestamp: "20170407"

Upvotes: 2

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