Writing array in Firebase android

Question

I am trying to write this to my Firebase

Parent

--0 : John

--1 : Tim

--2 : Sam

--3 : Ben

I am doing this

String[         


        

Answer 1

I am not sure about Java, but for web application, you can use something as follows:

I wanted to create a reusable function to add/save any object under a root node (even if that has an array of data at any level within the object). So I came up with this. (I am not sure if conforms to the best practices, but it worked pretty smooth)

    SaveWholeData: function(sKey, oVal, bGenKey) {
        bGenKey = bGenKey === undefined ? true: bGenKey;
        var oOriginalProperty = angular.copy(oVal);
        for (var property in oVal) {
            if (oVal.hasOwnProperty(property) && oVal[property] instanceof Array) {
                console.log(property);
                oVal[property] = "$|$";
            }
        }
        var sOwnRef = SaveDataByKey(sKey, oVal, bGenKey);
        for (var property in oVal) {
            if (oVal.hasOwnProperty(property) && oVal[property] === "$|$") {
                oVal[property] = oOriginalProperty[property];
                var updatedReference = sOwnRef + "/" + property;
               SaveWholeData(updatedReference, oVal[property], false);
            }
        }
        return true;
    },
    SaveDataByKey: function(sKey, oVal, bGenKey) {
        if (bGenKey) {
            var newPostKey = firebase.database().ref(sKey).push().key;
            oVal.genKey = newPostKey;
            firebase.database().ref(sKey).child(newPostKey).set(oVal);
            return sKey + "/" + newPostKey;
        }else{
            firebase.database().ref(sKey).set(oVal);
            return sKey;
        }
    }

So to add new user under root users, you call:

SaveWholeData("users", oUserInfo, true);

and to update existing user:

SaveWholeData("users"+"/"+ oUserInfo.genKey, oUserInfo, true);