Merge pull request #753 from waiterZen/SERVER-1183

[compare] fix campare query bug

Author: ar2rsawseen

plugins/compare/api/api.js

@@ -184,12 +184,14 @@ var exported = {},
                             };
 
                             var data = {id: app._id, name: app.name, sessions: sessionData.total_sessions, users: sessionData.total_users, newusers: sessionData.new_users, duration: sessionData.total_time, avgduration: sessionData.avg_time, charts: charts};
-
                             callback(null, data);
                         });
                     });
                 },
-                function(res) {
+                function(err2, res) {
+                    if (err2) {
+                        return common.returnMessage(params, 503, 'Fetch apps data failed');
+                    }
                     common.returnOutput(params, res);
                 });
             });

plugins/compare/frontend/public/javascripts/countly.models.js

@@ -269,6 +269,9 @@
                 }
 
                 _appData.all.avgduration.total = (_appData.all.sessions.total === 0) ? 0 : _appData.all.duration.total / _appData.all.sessions.total;
+            },
+            error: function() {
+                window.CountlyHelpers.notify({type: 'error', message: jQuery.i18n.map['management-applications.plugins.error.server']});
             }
         });
     };