Adding items to Firebase array in Swift without observing for array first

Question

Currently I add a new post to my Firebase array by observing for the array first, appending my new post, and then updating the ref:

REF_USER.child(UID).obser         


        

Answer 1

It's generally good practice to avoid array's in Firebase as they are super hard to deal with; the individual elements cannot be accessed directly and they cannot be updated - they have to be re-written.

Not sure why you are going through the steps outlined in your question to add a new post but here's another solution:

thisPostRef = postsRef.childByAutoId //create a new post node
thisPostRef.setValue("here's a new post") //store the post in it

Edit:

This will result in a structure like this

posts
  post_id_0: "here's a new post"
  post_id_1: "another post"
  post_id_2: "cool post"

This structure avoids the pitfalls of arrays.

Another edit. The OP asks how to write it to the users/UID/posts node

usersRef = rootRef.childByAppendingPath("users")
thisUserRef = usersRef.childByAppendingPath(the users uid)
thisUserPostRef = thisUserRef.childByAutoId //create a new post node
thisUserPostRef.setValue("here's a new post") //store the post in it