From 6c5666e23e4fd979ac7427ae69f6dcbec3c8d3ef Mon Sep 17 00:00:00 2001
From: Anatoliy Chakkaev <rpm1602@gmail.com>
Date: Mon, 22 Apr 2013 08:40:12 +0400
Subject: [PATCH] Add checking for undefined in buildWhere

---
 lib/mysql.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/mysql.js b/lib/mysql.js
index 2f09bec..5cc6e3f 100644
--- a/lib/mysql.js
+++ b/lib/mysql.js
@@ -261,9 +261,9 @@ MySQL.prototype.all = function all(model, filter, callback) {
         Object.keys(conds).forEach(function (key) {
             var keyEscaped = '`' + key.replace(/\./g, '`.`') + '`'
             var val = self.toDatabase(props[key], conds[key]);
-            if (conds[key] === null) {
+            if (conds[key] === null || conds[key] === undefined) {
                 cs.push(keyEscaped + ' IS NULL');
-            } else if (conds[key].constructor.name === 'Object') {
+            } else if (conds[key] && conds[key].constructor.name === 'Object') {
                 var condType = Object.keys(conds[key])[0];
                 var sqlCond = keyEscaped;
                 if ((condType == 'inq' || condType == 'nin') && val.length == 0) {