From: Evert Timberg <evert.timberg+github@gmail.com>
Date: Sat, 30 Jul 2016 13:41:35 +0000 (-0400)
Subject: Handle possibility of a undefined arc element in the doughnut chart
X-Git-Tag: v2.2.1~3^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F3063%2Fhead;p=thirdparty%2FChart.js.git

Handle possibility of a undefined arc element in the doughnut chart
---

diff --git a/src/controllers/controller.doughnut.js b/src/controllers/controller.doughnut.js
index 32fc3e7ce..637caea37 100644
--- a/src/controllers/controller.doughnut.js
+++ b/src/controllers/controller.doughnut.js
@@ -46,7 +46,7 @@ module.exports = function(Chart) {
 							var meta = chart.getDatasetMeta(0);
 							var ds = data.datasets[0];
 							var arc = meta.data[i];
-							var custom = arc.custom || {};
+							var custom = arc && arc.custom || {};
 							var getValueAtIndexOrDefault = helpers.getValueAtIndexOrDefault;
 							var arcOpts = chart.options.elements.arc;
 							var fill = custom.backgroundColor ? custom.backgroundColor : getValueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
@@ -253,6 +253,10 @@ module.exports = function(Chart) {
 				}
 			});
 
+			/*if (total === 0) {
+				total = NaN;
+			}*/
+
 			return total;
 		},