make linkId unique

2015-03-22 14:21:11 +01:00 · 2015-03-22 14:21:11 +01:00 · 28cbef5bb6
parent f892501f3b
commit 28cbef5bb6
1 changed files with 3 additions and 1 deletions
--- a/history.js
+++ b/history.js
@ -195,7 +195,9 @@ function showTq(d) {
 }

 function linkId(d) {
-  return d.source.node.nodeinfo.node_id + "-" + d.target.node.nodeinfo.node_id
+  var ids = [d.source.node.nodeinfo.node_id, d.target.node.nodeinfo.node_id]
+
+  return ids.sort().join("-")
 }

 function mkmap(map, newnodes, lostnodes, onlinenodes, graph, gotoAnything) {