refractor code into different files

app/helpers/events_helper.rb

@@ -0,0 +1,44 @@
+module EventsHelper
+  ##
+  # Includes functions related to events
+  ##
+  ##
+  # ====Returns
+  # * +String+ -> number of registrations / max allowed registrations
+  def registered_text(event)
+    return "Registered: #{event.registrations.count}/#{event.max_attendees}" if event.max_attendees
+    "Registered: #{event.registrations.count}"
+  end
+
+  def event_types(conference)
+    all = conference.program.event_types.map { |et| et.title.pluralize }
+    first = all[0...-1]
+    last = all[-1]
+    ets = ''
+    if all.length > 1
+      ets << first.join(', ')
+      ets << " and #{last}"
+    else
+      ets = all.join
+    end
+    ets
+  end
+
+  def replacement_event_notice(event_schedule)
+    if event_schedule.present? && event_schedule.replacement?
+      replaced_event = (event_schedule.intersecting_event_schedules.withdrawn.first || event_schedule.intersecting_event_schedules.canceled.first).event
+      content_tag :span do
+        concat content_tag :span, 'Please note that this talk replaces '
+        concat link_to replaced_event.title, conference_program_proposal_path(@conference.short_title, replaced_event.id)
+      end
+    end
+  end
+
+  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+    if event.state == 'canceled' || event.state == 'withdrawn'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_schedule.present? && event_schedule.replacement?
+      content_tag :span, 'REPLACEMENT', class: (['label', 'label-info'] + label_classes)
+    end
+  end
+end