Move events index datatable row to a partial

- clean up columns
- tag unregistered submitters & speakers
- implement caching

app/views/admin/events/_datatable_row.haml

@@ -0,0 +1,63 @@
+- cache ['admin', conference_id, program, event] do
+  %tr{ id: "event-#{event.id}" }
+    %td
+      = event.id
+
+    %td
+      = link_to event.title,
+        admin_conference_program_event_path(conference_id, event)
+
+    - if rating_enabled
+      %td.col-md-1{ data: { order: event.average_rating } }
+        = render 'datatable_row_rating',
+          event:      event,
+          show_votes: show_votes,
+          max_rating: max_rating
+
+    - if event.submitter
+      %td
+        = link_to event.submitter.name, admin_user_path(event.submitter)
+        - unless event.submitter.registrations.for_conference(event.conference)
+          %span.label.label-warning Unregistered
+    - else
+      %td.bg-danger
+        Unknown submitter
+
+    %td
+      - event.speakers_ordered.each do |speaker|
+        .speaker
+          = link_to speaker.name, admin_user_path(speaker)
+          - unless speaker.registrations.for_conference(event.conference)
+            %span.label.label-danger Unregistered
+
+    - if @program.languages.present?
+      %td
+        = event.language
+
+    %td.text-center{ data: { order: event.require_registration.to_s } }
+      = event_switch_checkbox(event, :require_registration, conference_id)
+      - if event.require_registration
+        = link_to registered_text(event),
+          registrations_admin_conference_program_event_path(conference_id,
+            event),
+          class: 'btn btn-xs btn-default'
+
+    %td.text-center{ data: { order: event.is_highlight.to_s } }
+      = event_switch_checkbox(event, :is_highlight, conference_id)
+
+    %td
+      = event_type_dropdown(event, event_types, conference_id)
+
+    %td
+      = track_dropdown(event, tracks, conference_id)
+
+    %td
+      = difficulty_dropdown(event, difficulty_levels, conference_id)
+
+    %td
+      = state_dropdown(event, conference_id, email_settings)
+
+    %td.text-center
+      = link_to "#{event.comments_count}",
+        admin_conference_program_event_path(conference_id, event),
+        anchor: 'comments-div'

app/views/admin/events/index.html.haml

@@ -90,53 +90,14 @@
           %th
             .fa.fa-comment
         - @events.each do |event|
-          %tr
-            %td
-              = event.id
-            %td
-              = link_to event.title, admin_conference_program_event_path(@conference.short_title, event)
-
-            - if @program.rating_enabled?
-              %td.col-md-1{ data: { order: event.average_rating } }
-                = render 'datatable_row_rating',
-                  event:      event,
-                  show_votes: @program.show_voting?,
-                  max_rating: @program.rating
-
-            - if event.submitter && event.submitter.registrations && event.submitter.registrations.count < 1
-              - bgcolor = '#F7819F'
-            - else
-              - bgcolor = ''
-            %td{ style: "background-color: #{bgcolor}" }
-              - unless event.submitter.nil?
-                = link_to event.submitter.name, admin_user_path(event.submitter)
-                - if event.submitter.registrations.count < 1
-                  (Unregistered!)
-              - else
-                Unknown submitter
-            %td
-              - event.speakers_ordered.each do |speaker|
-                .speaker
-                  = link_to speaker.name, admin_user_path(speaker)
-
-            - if @program.languages.present?
-              %td
-                = event.language
-
-            %td.text-center{ 'data-order' => "#{event.require_registration}" }
-              = event_switch_checkbox(event, :require_registration, @conference.short_title)
-              - if event.require_registration
-                = link_to registered_text(event), registrations_admin_conference_program_event_path(@conference.short_title, event), class: 'btn btn-xs btn-default'
-
-            %td.text-center{ 'data-order' => "#{event.is_highlight}" }
-              = event_switch_checkbox(event, :is_highlight, @conference.short_title)
-            %td
-              = event_type_dropdown(event, @event_types, @conference.short_title)
-            %td
-              = track_dropdown(event, @tracks, @conference.short_title)
-            %td
-              = difficulty_dropdown(event, @difficulty_levels, @conference.short_title)
-            %td
-              = state_dropdown(event, @conference.short_title, @conference.email_settings)
-            %td.text-center
-              = link_to "#{event.comments_count}", admin_conference_program_event_path(@conference.short_title, event), anchor: 'comments-div'
+          = render 'datatable_row',
+            event: event,
+            conference_id: @conference.short_title,
+            program: @program,
+            rating_enabled: @program.rating_enabled?,
+            show_votes: @program.show_voting?,
+            max_rating: @program.rating,
+            event_types: @event_types,
+            tracks: @tracks,
+            difficulty_levels: @difficulty_levels,
+            email_settings: @conference.email_settings