From bda9e5f62766c53848085e141b9765a001542ca9 Mon Sep 17 00:00:00 2001
From: Navid Nikpour <navid@nikpour.com>
Date: Sun, 10 Aug 2014 08:46:24 +0200
Subject: [PATCH] Fixed undefined modelClass when using polymorphic relations

---
 lib/model-helper.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/model-helper.js b/lib/model-helper.js
index 63f6ca0..5820550 100644
--- a/lib/model-helper.js
+++ b/lib/model-helper.js
@@ -67,7 +67,9 @@ var modelHelper = module.exports = {
     // Generate model definitions for related models
     for (var r in modelClass.relations) {
       var rel = modelClass.relations[r];
-      generateModelDefinition(rel.modelTo, out);
+      if (rel.modelTo){
+        generateModelDefinition(rel.modelTo, out);
+      }
       if (rel.modelThrough) {
         generateModelDefinition(rel.modelThrough, out);
       }