CODEWITHSUNDEEP
iosswiftfirebasefirebase-realtime-database
Gaetano Herman
Gaetano Herman

Reputation: 524

How to get specific info for all users?

How can I get the kaarsen array out of my Firebase database of every single user?

enter image description here

Upvotes: 0

Views: 52

Answers (2)

Fallah
Fallah

Reputation: 125

    let userID = FIRAuth.auth()?.currentUser?.uid

ref.child("users").child(userID!).child("kaarsen").observeSingleEvent(of: .value, with: { (snapshot) in
// Get user value
let value = snapshot.value as! Array
arrayOfKarsens.append(value)

// ...
}) { (error) in
print(error.localizedDescription)
}

Upvotes: 0

Frank van Puffelen
Frank van Puffelen

Reputation: 598847

You seem to be nesting different types of data, which is a big anti-pattern in the Firebase Database. When you read data from Firebase, you always read entire nodes. So in your scenario you either read the entire user, or you don't read them. You cannot retrieve just the kaarsen node for each user. This is one of the many reasons why Firebase recommends against nesting different types of data.

In your case it seems best to split the kaarsen int a top-level node:

users
  <uid>
    email: ...
    geboortedatum: ...
    naam: ...
kaarsen
  <uid>
    ...

With this structure you can get the kaarsen for all users by accessing /kaarsen.

Upvotes: 1

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