From 27465cf2acc40599a83feaa100cdb19ca501d82c Mon Sep 17 00:00:00 2001
From: James Goodman <james.s.goodman@gmail.com>
Date: Wed, 22 Jan 2014 16:29:12 +1300
Subject: [PATCH] Fix exception when this.data() returns undefined

---
 javascript/display_logic.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/javascript/display_logic.js b/javascript/display_logic.js
index 59cd027..5803836 100644
--- a/javascript/display_logic.js
+++ b/javascript/display_logic.js
@@ -96,7 +96,9 @@
 		},
 
 		getMasters: function() {
-			return this.data('display-logic-masters').split(",");
+			var masters = this.data('display-logic-masters');
+
+			return (masters) ? masters.split(",") : [];
 		}
 
 	});
@@ -222,4 +224,4 @@
 	});
 
 //})
-})(jQuery);
\ No newline at end of file
+})(jQuery);