Extract checking if event is replacement to event_schedule model

app/helpers/application_helper.rb

@@ -522,13 +522,13 @@ module ApplicationHelper
   def canceled_replacement_event_label(event, event_schedule, *label_classes)
     if event.state == 'canceled' || event.state == 'withdrawn'
       content_tag :span, 'CANCELED', class: (['label', 'label-danger'] + label_classes)
-    elsif event.state == 'confirmed' && event_schedule.present? && (!event_schedule.intersecting_events.canceled.empty? || !event_schedule.intersecting_events.withdrawn.empty?)
+    elsif event_schedule.present? && event_schedule.replacement?
       content_tag :span, 'REPLACEMENT', class: (['label', 'label-info'] + label_classes)
     end
   end
 
-  def replacement_event_notice(event, event_schedule)
-    if event.state == 'confirmed' && event_schedule.present? && (!event_schedule.intersecting_events.withdrawn.empty? || !event_schedule.intersecting_events.canceled.empty?)
+  def replacement_event_notice(event_schedule)
+    if event_schedule.present? && event_schedule.replacement?
       replaced_event = (event_schedule.intersecting_events.withdrawn.first || event_schedule.intersecting_events.canceled.first).event
       content_tag :span do
         concat content_tag :span, 'Please note that this talk replaces '

app/models/event_schedule.rb

@@ -31,6 +31,10 @@ class EventSchedule < ActiveRecord::Base
     room.event_schedules.where(start_time: start_time, schedule: schedule).where.not(id: id)
   end
 
+  def replacement?
+    event.state == 'confirmed' && (!intersecting_events.canceled.empty? || !intersecting_events.withdrawn.empty?)
+  end
+
   private
 
   def conference_id

app/views/proposals/show.html.haml

@@ -45,7 +45,7 @@
         .col-md-12
           .lead
             = canceled_replacement_event_label(@event, @event_schedule)
-            = replacement_event_notice(@event, @event_schedule)
+            = replacement_event_notice(@event_schedule)
 
           - if @event.commercials.empty?
             %h5.text-warning

app/views/schedules/_event.html.haml

@@ -7,7 +7,7 @@
 
     %p
       = canceled_replacement_event_label(event, event_schedule)
-      = replacement_event_notice(event, event_schedule)
+      = replacement_event_notice(event_schedule)
 
     %span.h3
       = event.title