From 131e546fb3b4640957d7e239431880c461dd061e Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sat, 19 Mar 2016 00:49:32 -0700
Subject: [PATCH] fix backend selection.

---
 lib/bcoin/ldb.js | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/lib/bcoin/ldb.js b/lib/bcoin/ldb.js
index a9fbb1c3..30cf3306 100644
--- a/lib/bcoin/ldb.js
+++ b/lib/bcoin/ldb.js
@@ -17,7 +17,7 @@ module.exports = function ldb(name, options) {
 
   if (!db[file]) {
     if (bcoin.isBrowser) {
-      backend = 'level-js';
+      backend = require('level-js');
     } else {
       if (!backend || backend === 'rocksdb')
         backend = 'rocksdown';
@@ -25,10 +25,8 @@ module.exports = function ldb(name, options) {
         backend = 'leveldown';
       else if (backend === 'lmdb')
         backend = 'lmdb';
-      else if (backend === 'tree')
-        backend = 'tree';
-      else
-        assert(false, 'Bad DB.');
+
+      backend = require(backend);
     }
 
     db[file] = new levelup(file, {
@@ -46,7 +44,7 @@ module.exports = function ldb(name, options) {
       mapSize: options.mapSize || 150 * (1024 << 20),
       writeMap: options.writeMap || false,
 
-      db: require(backend)
+      db: backend
     });
   }