Fixed requested changes to RethinkDB handler

lib/document_stores/rethinkdb.js

@@ -1,26 +1,26 @@
-var crypto = require('crypto');
-var rethink = require('rethinkdbdash');
+const crypto = require('crypto');
+const rethink = require('rethinkdbdash');
 
-var RethinkDBStore = function (options) {
-  this._options = options;
-  this._options.silent = true;
-  this._options.host = options.host || '127.0.0.1';
-  this._options.port = options.port || 28015;
-  this._options.db = options.db || 'haste';
-  this._options.user = options.user || 'admin';
-  this._options.password = options.password || '';
-  this.client = rethink(this._options);
+var RethinkDBStore = (options) => {
+  this.client = rethink({
+    silent: true,
+    host: options.host || '127.0.0.1',
+    port: options.port || 28015,
+    db: options.db || 'haste',
+    user: options.user || 'admin',
+    password: options.password || ''
+  });
 };
 
-RethinkDBStore.md5 = function (str) {
-  var md5sum = crypto.createHash('md5');
+RethinkDBStore.md5 = (str) => {
+  const md5sum = crypto.createHash('md5');
   md5sum.update(str);
   return md5sum.digest('hex');
 };
 
-RethinkDBStore.prototype.set = function (key, data, callback) {
+RethinkDBStore.prototype.set = (key, data, callback) => {
   try {
-    this.client.table('uploads').insert({ id: RethinkDBStore.md5(key), data: data }).run(function (error) {
+    this.client.table('uploads').insert({ id: RethinkDBStore.md5(key), data: data }).run((error) =? {
       if (error) return callback(false);
       callback(true);
     });
@@ -29,7 +29,7 @@ RethinkDBStore.prototype.set = function (key, data, callback) {
   }
 };
 
-RethinkDBStore.prototype.get = function (key, callback) {
+RethinkDBStore.prototype.get = (key, callback) => {
   this.client.table('uploads').get(RethinkDBStore.md5(key)).run((error, result) => {
     if (error || !result) return callback(false);
     callback(result.data);