[Eric]

Hello,

I’m looking at using Firebase but I’m having trouble getting it to work as I would like.

From what I understand from Google’s documentation, there are two ways to add data to the database, set() and add(). Let’s say I have the following database structure:

users: {
   userKey: {
      c1: {
         v1: true
      }
   }
}

 

and I want to add as a child of c1, {v2: true}. However, when I use setUserValue(“c”, {v2: true}), it completely recreates c1, deleting anything else that might be in there. I would rather have something like “addUserValue(“c”, {v2: true})” that would then give me:

users: {
   userKey: {
      c1: {
         v1: true
         v2: true
      }
   }
}

 

I can’t find anything in the documentation. How would I go about accomplishing this?

Thank you,
Eric

[Edward]

Hey!

 

Using either .setValue or .setUserValue, I have come across this, try;

 

setUserValue(“c/”, {v2: true})

(note the added ‘/’), this is directing your data write down into the path, instead of just recreating it 🙂

 

Thanks

[Eric]

Hello Edward,

Unfortunately, I’m not getting this to work. If I run:


database.setUserValue("c/", {v2: true})
database.setUserValue("c/", {v3: true})

The database simply reads (note the overwriting still happens):

users: {
   userKey: {
      c: {
         v3: true
      }
   }
}

Does your solution work for you when run? If so, can you provide some code because I certainly can’t get it to work.

Thank you,
Eric

[Edward]

Hi Eric,

 

Yes I have multiple key/value pairs which are updated/edited, i.e;

 

    function adminAmendNewUserHours(totalAllowance, adminAmendWeeklyHours) {
            firebaseDb.setValue(
"users" + "/" + "MYUSERNAME" + "/" + "allowances" + "/" + "2019" + "/" + "total", totalAllowance)
        
    }

In the example code of mine, the path may be quite long, but when it comes down to it, I am updating the value of “total”, with “totalAllowance” (a variable), although nested in this area, are other objects, JSON items ect – and it only effects my intended,

 

If you joined the felgo stack group you can find me there and ping me maybe we can go into a bit more depth!

 

Thanks

Edward