fixes skygragon#59: don't panic if failed t get submission.

skygragon · skygragon · commit cd599f4b048c · 2017-07-24T10:50:06.000+08:00
Signed-off-by: Eric Wang &lt;skygragon@gmail.com&gt;
diff --git a/lib/commands/submit.js b/lib/commands/submit.js
@@ -57,7 +57,8 @@ cmd.handler = function(argv) {
       // show beat ratio
       if (ok) {
         core.getSubmission({id: result.id}, function(e, submission) {
-          if (!submission.distributionChart) return;
+          if (e || !submission || !submission.distributionChart)
+            return log.warn('Failed to get submission beat ratio.');
 
           var lang = submission.distributionChart.lang;
           var scores = submission.distributionChart.distribution;
