Firebase database query with vue js

Question

I am using Firebase Realtime Database. Below I enclose my firebase structure:

Firebase structure

I am trying to recive all IDs where tags are equal to my payload(e.g. Phones)

I tried following query

firebase.database().ref('Questionnaires').orderByChild('tags').equalTo(payload).once("value")
        .then((data) => {
          commit('setLoading', false)
          console.log("Result", data.val())
        })
        .catch((error) => {
          commit('setLoading', false)
          console.log(error)
        })

But in effect I am reciving data.val() = null

I tried various approaches but still got null

Is it possible to construct that query with that data structure ? If yes please teach me. I am out of ideas.

Tour `tags` node doesn't have a child key matching your `payload`, so this query won't work. Your current data structure makes it easy to look up the tags for a questionnaire, but it does not make it easy to look up the questionnaires for a tag. To allow the latter, you'll want to add a secondary data structure `tags` and store the tag name and all questionnaire IDs under that. See https://stackoverflow.com/questions/40656589/firebase-query-if-child-of-child-contains-a-value — Frank van Puffelen, May 20 '20 at 00:47

score -1 · Answer 1 · answered May 20 '20 at 00:55

-1

I've heard relationships is a nightmare to maintain in firebase, my guess is that tags is another firebase collection? If so, switch over to another dbsm before it is too late.

answered May 20 '20 at 00:55

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Firebase database query with vue js

1 Answers1