Description of problem:


The "Sync Overview" widget contains nothing but a spinner.

Version-Release number of selected component (if applicable):
Snap 13

How reproducible:


Steps to Reproduce:
1.  Assure some content has been synced in the past for an org, but assure that nothing is actually syncing at the moment.
2.  Go to Content Dashboard
3.  Look at "Sync Overview" widget.

Actual results:

Permanent spinner; no content

Expected results:

Widget works.  Also, we probably shouldn't be passing an ISE as an informational error in the logs (see below)


Additional info:

* All server statuses (`katello-service status`) seem to be ok.

* /var/log/foreman/production.log:

2015-07-21 10:07:28 [I] Processing by Katello::DashboardController#errata as */*
2015-07-21 10:07:28 [I]   Parameters: {"undefined"=>"-1"}
2015-07-21 10:07:28 [I] Client connected.
2015-07-21 10:07:28 [I] Client connected.
2015-07-21 10:07:28 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_host_collections.html.haml (6.2ms)
2015-07-21 10:07:28 [I] Completed 200 OK in 658ms (Views: 299.1ms | ActiveRecord: 10.0ms)
2015-07-21 10:07:28 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_subscriptions_totals.haml (80.5ms)
2015-07-21 10:07:28 [I] Completed 200 OK in 890ms (Views: 81.2ms | ActiveRecord: 2.8ms)
2015-07-21 10:07:29 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_errata.haml (11.9ms)
2015-07-21 10:07:29 [I] Completed 200 OK in 627ms (Views: 257.2ms | ActiveRecord: 13.0ms)
2015-07-21 10:10:15 [I] Processing by Katello::DashboardController#index as HTML
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/common/_helptip_button.html.haml (0.7ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/common/_helptip.html.haml (0.8ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_subscriptions.haml (77.8ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_entry.html.haml (80.8ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_ajax_entry.html.haml (2.1ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_ajax_entry.html.haml (0.3ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_ajax_entry.html.haml (0.3ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_ajax_entry.html.haml (0.3ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_ajax_entry.html.haml (0.3ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/index.html.haml within katello/layouts/katello (102.9ms)
2015-07-21 10:10:15 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/common/_common_i18n.html.haml (9.7ms)
2015-07-21 10:10:15 [I]   Rendered home/_submenu.html.erb (2.9ms)
2015-07-21 10:10:15 [I]   Rendered home/_user_dropdown.html.erb (12.3ms)
2015-07-21 10:10:15 [I] Read fragment views/tabs_and_title_records-3 (0.1ms)
2015-07-21 10:10:15 [I]   Rendered home/_topbar.html.erb (137.1ms)
2015-07-21 10:10:15 [I]   Rendered layouts/base.html.erb (139.2ms)
2015-07-21 10:10:15 [I] Completed 200 OK in 434ms (Views: 258.7ms | ActiveRecord: 1.4ms)
2015-07-21 10:10:16 [I] Processing by Katello::DashboardController#host_collections as */*
2015-07-21 10:10:16 [I]   Parameters: {"undefined"=>"-1"}
2015-07-21 10:10:16 [I] Processing by Katello::DashboardController#content_views as */*
2015-07-21 10:10:16 [I]   Parameters: {"undefined"=>"-1"}
2015-07-21 10:10:16 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_host_collections.html.haml (1.3ms)
2015-07-21 10:10:16 [I] Completed 200 OK in 11ms (Views: 1.6ms | ActiveRecord: 1.6ms)
2015-07-21 10:10:16 [I] Processing by Katello::DashboardController#errata as */*
2015-07-21 10:10:16 [I]   Parameters: {"undefined"=>"-1"}
2015-07-21 10:10:16 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_errata.haml (11.7ms)
2015-07-21 10:10:16 [I] Completed 200 OK in 40ms (Views: 15.2ms | ActiveRecord: 6.1ms)
2015-07-21 10:10:16 [I] Processing by Katello::DashboardController#subscriptions_totals as */*
2015-07-21 10:10:16 [I]   Parameters: {"undefined"=>"-1"}
2015-07-21 10:10:16 [I] Processing by Katello::DashboardController#sync as */*
2015-07-21 10:10:16 [I]   Parameters: {"undefined"=>"-1"}
2015-07-21 10:10:19 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_content_views.haml (2791.5ms)
2015-07-21 10:10:19 [I] Completed 200 OK in 2811ms (Views: 2789.9ms | ActiveRecord: 11.5ms)
2015-07-21 10:10:19 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_subscriptions_totals.haml (2568.6ms)
2015-07-21 10:10:19 [I] Completed 200 OK in 3671ms (Views: 2576.5ms | ActiveRecord: 4.0ms)
2015-07-21 10:10:20 [I]   Rendered /opt/rh/ruby193/root/usr/share/gems/gems/katello-2.2.0.58/app/views/katello/dashboard/_sync.haml (3205.3ms)
2015-07-21 10:10:20 [I] Completed 500 Internal Server Error in 3860ms
2015-07-21 10:10:20 [F] 
NoMethodError (undefined method `start_time' for #<Hash:0x0000000ff11f30>):
  lib/middleware/catch_json_parse_errors.rb:9:in `call'