From 25e9ffb4384b4fbefe22ad491c2bc7c0e0e4f8ff Mon Sep 17 00:00:00 2001
From: Nathan LaFreniere <nlf@andyet.net>
Date: Mon, 30 Jun 2014 11:47:08 -0700
Subject: [PATCH] allow extra values in get/put callbacks

This is mostly to facilitate RiakDOWN, since tracking vclocks manually is sometimes desirable. This will allow the _put method in abstract-leveldown backends to pass a value out to the client, and the _get method to pass extra metadata as well.
---
 lib/levelup.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/levelup.js b/lib/levelup.js
index 22b6721e..63939eb6 100644
--- a/lib/levelup.js
+++ b/lib/levelup.js
@@ -186,7 +186,7 @@ LevelUP.prototype.get = function (key_, options, callback) {
 
   options.asBuffer = util.isValueAsBuffer(options)
 
-  this.db.get(key, options, function (err, value) {
+  this.db.get(key, options, function (err, value, extra) {
     if (err) {
       if ((/notfound/i).test(err)) {
         err = new NotFoundError(
@@ -202,7 +202,7 @@ LevelUP.prototype.get = function (key_, options, callback) {
       } catch (e) {
         return callback(new EncodingError(e))
       }
-      callback(null, value)
+      callback(null, value, extra)
     }
   })
 }
@@ -235,13 +235,13 @@ LevelUP.prototype.put = function (key_, value_, options, callback) {
   key     = util.encodeKey(key_, options)
   value   = util.encodeValue(value_, options)
 
-  this.db.put(key, value, options, function (err) {
+  this.db.put(key, value, options, function (err, extra) {
     if (err) {
       return dispatchError(self, new WriteError(err), callback)
     } else {
-      self.emit('put', key_, value_)
+      self.emit('put', key_, value_, extra)
       if (callback)
-        callback()
+        callback(null, extra)
     }
   })
 }