CODEWITHSUNDEEP
firebasegoogle-cloud-firestore
user1552172
user1552172

Reputation: 676

remove array item from nested map object in firebase firestore

enter image description here

I am trying to figure out how i would go about removing and adding to the profile array in the array of objects. I have the id's to get to the appropriate items in the arrays but it looks like i can only update the entire root array item.

doc().update({
    technologyLearned: firebase.firestore.FieldValue.arrayRemove("?")
});

if this was a normal language i could technologyLearned[id].profiles[profileid] and get to the item i need to remove or add.

Upvotes: 2

Views: 534

Answers (1)

Doug Stevenson
Doug Stevenson

Reputation: 317372

Since you can't index into an array to locate an item to remove, you will have to read the entire document, modify the array in memory, then write it back to the document.

The problem here is that technologiesLearned is an array (not that profiles is an array). If profiles was not nested under technologiesLearned array, you could use arrayRemove on it.

Upvotes: 1

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