如何在Firebase中增加记录？-HowtoincrementarecordinFirebase?

I have a Firebase record "searches: 0" for each user. On some event, I'd like to add 1 to what the current count is. I've gotten this far, but for some reason, it's not working:

我为每个用户提供了Firebase记录“搜索：0”。在某些情况下，我想将当前计数加1。我已经走到这一步了，但由于某种原因，它不起作用：

du.fbAddSearchCount = function() {
    var usr = new Firebase(firebase_url + "/users/" + user_uid);

    usr.on("value", function(snapshot) {
        user = snapshot.val();

       var usersRef = ref.child("users");

       var fbUser = usersRef.child(user_uid);
       fbUser.update( {
           searches: user.searches + 1
       });
    }
}

Any help to get this working?

有什么帮助让这个工作？

Thank you.

谢谢。

2 个解决方案

var databaseRef = firebase.database().ref('users').child(user_uid).child('searches');

databaseRef.transaction(function(searches) {
  if (searches) {
    searches = searches + 1;
  }
  return searches;
});

ref.transection(function(queue_length) {
    if(queue_length|| (queue_length === 0))
    {
        queue_length++; 
    }
    return queue_length;

})