Fix Rubocop issues

app/models/ability.rb

@@ -68,6 +68,8 @@ class Ability
   end
 
   # Abilities for signed in users
+  # TODO: Refactor into multiple functions
+  # rubocop:disable Metrics/AbcSize
   def signed_in(user)
     # Abilities from not_signed_in user are also inherited
     not_signed_in
@@ -140,6 +142,7 @@ class Ability
       user == track.submitter && !(track.accepted? || track.confirmed?)
     end
   end
+  # rubocop:enable Metrics/AbcSize
 
   # Abilities for users with roles wandering around in non-admin views.
   def common_abilities_for_admins(user)

app/models/commercial.rb

@@ -17,7 +17,7 @@ class Commercial < ApplicationRecord
     begin
       resource = OEmbed::Providers.get(url, maxwidth: 560, maxheight: 315)
       { html: resource.html.html_safe }
-    rescue StandardError => exception
+    rescue StandardError
       { html: iframe_fallback(url) }
       # { error: exception.message }
     end

app/models/conference.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+# rubocop:disable Metrics/ClassLength
 class Conference < ApplicationRecord
   include RevisionCount
   require 'uri'
@@ -1199,3 +1200,4 @@ class Conference < ApplicationRecord
     ]
   end
 end
+# rubocop:enable Metrics/ClassLength

app/models/event.rb

@@ -281,7 +281,6 @@ class Event < ApplicationRecord
     event_schedules.find_by(schedule_id: selected_schedule_id).try(:happening_now?)
   end
 
-
   ##
   # Returns true or false, if the event is already over or not
   #

app/models/event_user.rb

@@ -2,7 +2,7 @@
 
 class EventUser < ApplicationRecord
   ROLES = [%w[Speaker speaker], %w[Submitter submitter], %w[Moderator moderator],
-            %w[Volunteer volunteer]]
+           %w[Volunteer volunteer]]
 
   belongs_to :event, touch: true
   belongs_to :user

app/models/payment.rb

@@ -23,7 +23,7 @@ class Payment < ApplicationRecord
   end
 
   def stripe_description
-    #"ticket purchases(#{user.username})"
+    # "ticket purchases(#{user.username})"
     "Tickets for #{conference.title} #{user.name} #{user.email}"
   end
 

app/models/ticket_purchase.rb

@@ -107,6 +107,7 @@ end
 def count_purchased_registration_tickets(conference, purchases)
   # TODO: WHAT CAUSED THIS???
   return 0 unless purchases
+
   conference.tickets.for_registration.inject(0) do |sum, registration_ticket|
     sum + purchases[registration_ticket.id.to_s].to_i
   end

app/models/user.rb

@@ -56,8 +56,7 @@ class User < ApplicationRecord
                        :recoverable, :rememberable, :trackable, :validatable, :confirmable,
                        :omniauthable,
                        # omniauth_providers: [:suse, :google, :facebook, :github, :discourse]
-                       omniauth_providers: [:google, :discourse]
-                      ]
+                       omniauth_providers: [:google, :discourse]]
                     end
 
   devise(*devise_modules)
@@ -160,6 +159,7 @@ class User < ApplicationRecord
   # Partials should *not* directly call `gravatar_url`
   def profile_picture(opts = {})
     return gravatar_url(opts) unless picture.present?
+
     size = (opts[:size] || 0).to_i
     if size < 50
       picture.tiny.url
@@ -259,7 +259,7 @@ class User < ApplicationRecord
   # TODO: Use a real authorization in the right place....
   def manages_volunteers?(conference)
     organizer_roles = get_roles['organizer']
-    organizer_roles&.include?(conference.short_title) # TODO or Volunteer Coorinator.
+    organizer_roles&.include?(conference.short_title) # TODO: or Volunteer Coorinator.
   end
 
   def registered
@@ -300,7 +300,6 @@ class User < ApplicationRecord
     events.where(program_id: conference.program.id, 'event_users.event_role': 'volunteer')
   end
 
-
   def self.empty?
     User.count == 1 && User.first.email == 'deleted@localhost.osem'
   end