From 6bdc6ec3975e85597de365ccad647d4013f44dd2 Mon Sep 17 00:00:00 2001
From: Connor Turland <connorturland@gmail.com>
Date: Tue, 12 Aug 2014 13:30:56 -0400
Subject: [PATCH] fix for filtering when no edge or node is returned from the
 topic or synapse

---
 app/assets/javascripts/metamaps/Metamaps.js | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/app/assets/javascripts/metamaps/Metamaps.js b/app/assets/javascripts/metamaps/Metamaps.js
index e1ffbcbc..be08684d 100644
--- a/app/assets/javascripts/metamaps/Metamaps.js
+++ b/app/assets/javascripts/metamaps/Metamaps.js
@@ -2265,10 +2265,16 @@ Metamaps.Filter = {
             }
 
             if (passesMetacode && passesMapper) {
-                n.setData('alpha', 1, 'end');
+                if (n) {
+                    n.setData('alpha', 1, 'end');
+                }
+                else console.log(topic);
             }
             else {
-                n.setData('alpha', 0, 'end');
+                if (n) {
+                    n.setData('alpha', 0, 'end');
+                }
+                else console.log(topic);
             }
         });
         Metamaps.Synapses.each(function(synapse) {
@@ -2286,10 +2292,16 @@ Metamaps.Filter = {
             }
 
             if (passesSynapse && passesMapper) {
-                e.setData('alpha', 1, 'end');
+                if (e) {
+                    e.setData('alpha', 1, 'end');
+                }
+                else console.log(synapse);
             }
             else {
-                e.setData('alpha', 0, 'end');
+                if (e) {
+                    e.setData('alpha', 0, 'end');
+                }
+                else console.log(synapse);
             } 
         });