Extract the EventsTimeline controller concern

app/controllers/concerns/events_timeline.rb

@@ -0,0 +1,44 @@
+module EventsTimeline
+  extend ActiveSupport::Concern
+
+  include BucketFilterable
+
+  included do
+    before_action :set_activity_day
+  end
+
+  private
+    def set_activity_day
+      @activity_day = if params[:day].present?
+        Time.zone.parse(params[:day])
+      else
+        Time.zone.now
+      end
+    rescue ArgumentError
+      raise ActionController::RoutingError
+    end
+
+    def events_for_activity_day
+      user_events.where(created_at: @activity_day.all_day).
+        group_by { |event| [ event.created_at.hour, helpers.event_column(event) ] }.
+        map { |hour_col, events|
+          [ hour_col,
+            events.uniq { |e| e.action == "boosted" ? [ e.creator_id, e.bubble_id ] : e.id }
+          ]
+        }
+    end
+
+    def latest_event_before_activity_day
+      user_events.where(created_at: ...@activity_day.beginning_of_day).chronologically.last
+    end
+
+    def user_events
+      Event.where(bubble: user_bubbles, creator: Current.account.users)
+    end
+
+    def user_bubbles
+      Current.user.accessible_bubbles
+            .published_or_drafted_by(Current.user)
+            .where(bucket_id: bucket_filter)
+    end
+end

app/controllers/events_controller.rb

@@ -1,47 +1,13 @@
 class EventsController < ApplicationController
-  include BucketFilterable
-  before_action :set_activity_day
+  include EventsTimeline
 
   def index
     update_bucket_filter
+
     @buckets = Current.user.buckets.alphabetically
-    @events = events_by_hour_and_column
     @filters = Current.user.filters.all
-    @next_day = latest_event_before_today&.created_at
+
+    @events = events_for_activity_day
+    @next_day = latest_event_before_activity_day&.created_at
   end
-
-  private
-    def events_by_hour_and_column
-      user_events.where(created_at: @activity_day.all_day).
-        group_by { |event| [ event.created_at.hour, helpers.event_column(event) ] }.
-        map { |hour_col, events|
-          [ hour_col,
-            events.uniq { |e| e.action == "boosted" ? [ e.creator_id, e.bubble_id ] : e.id }
-          ]
-        }
-    end
-
-    def latest_event_before_today
-      user_events.where(created_at: ...@activity_day.beginning_of_day).chronologically.last
-    end
-
-    def user_events
-      Event.where(bubble: user_bubbles, creator: Current.account.users)
-    end
-
-    def user_bubbles
-      Current.user.accessible_bubbles
-            .published_or_drafted_by(Current.user)
-            .where(bucket_id: bucket_filter)
-    end
-
-    def set_activity_day
-      @activity_day = if params[:day].present?
-        Time.zone.parse(params[:day])
-      else
-        Time.zone.now
-      end
-    rescue ArgumentError
-      raise ActionController::RoutingError
-    end
 end