I'm having trouble updating a nested array in a Firebase database. I was able to do it on an array using arrayUnion, but not sure how or if possible on a nested array.
My data structure is as follows..
parent_id (document)
--name (string)
--children (array)
----0 (object)
------child_id (string)
------child_name (string)
------classes (array)
--------0 (object)
----------class_id (string)
----------class_name (string)
--------1 (object)
----------class_id (string)
----------class_name (string)
----1 (object)
------child_id (string)
------child_name (string)
------classes (array)
--------0 (object)
----------class_id (string)
----------class_name (string)
--------1 (object)
----------class_id (string)
----------class_name (string)
etc
To add a new child to the children array I use the following..
firebase
.firestore()
.collection("users")
.doc(parent_id)
.update({
children: firebase.firestore.FieldValue.arrayUnion({
child_id: child_id,
child_name: child_name
})
});
I cannot work out how to add a class to the classes array which is nested inside a child
Hopefully it is possible, I'm starting to think I should have used sub-collections instead of nested arrays!
