Add frozen_string_literal magic comment

re: https://www.rubydoc.info/gems/rubocop/RuboCop/Cop/Style/FrozenStringLiteralComment

db/migrate/20121223110942_devise_create_users.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class DeviseCreateUsers < ActiveRecord::Migration
   def up
     create_table(:users) do |t|

db/migrate/20121223115038_create_conferences_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateConferencesTable < ActiveRecord::Migration
   def up
     create_table :conferences do |t|

db/migrate/20121223115106_create_people_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreatePeopleTable < ActiveRecord::Migration
   def up
     create_table :people do |t|

db/migrate/20121223115117_create_rooms_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateRoomsTable < ActiveRecord::Migration
   def up
     create_table :rooms do |t|

db/migrate/20121223115125_create_tracks_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateTracksTable < ActiveRecord::Migration
   def up
     create_table :tracks do |t|

db/migrate/20121223115135_create_events_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEventsTable < ActiveRecord::Migration
   def up
     create_table :events do |t|

db/migrate/20121223120413_create_event_types.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEventTypes < ActiveRecord::Migration
   def up
     create_table :event_types do |t|

db/migrate/20121223122307_create_event_people_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEventPeopleTable < ActiveRecord::Migration
   def self.up
     create_table :event_people do |t|

db/migrate/20121223122842_create_venue_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateVenueTable < ActiveRecord::Migration
   def up
     create_table :venues do |t|

db/migrate/20121223135240_create_roles_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateRolesTable < ActiveRecord::Migration
   def self.up
     create_table :roles do |t|

db/migrate/20121223135447_user_roles_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UserRolesTable < ActiveRecord::Migration
   def self.up
     create_table :roles_users, id: false do |t|

db/migrate/20121224144728_create_cfp_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateCfpTable < ActiveRecord::Migration
   def up
     create_table :call_for_papers do |t|

db/migrate/20130103134212_create_registrations_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateRegistrationsTable < ActiveRecord::Migration
   def up
     create_table :registrations do |t|

db/migrate/20130104142209_create_comments.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateComments < ActiveRecord::Migration
   def self.up
     create_table :comments do |t|

db/migrate/20130104142839_acts_as_commentable_upgrade_migration.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ActsAsCommentableUpgradeMigration < ActiveRecord::Migration
   def self.up
     rename_column :comments, :comment, :body

db/migrate/20130105115603_create_event_attachments_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEventAttachmentsTable < ActiveRecord::Migration
   def up
     create_table :event_attachments do |t|

db/migrate/20130107112833_add_registration_dates_to_conferences_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddRegistrationDatesToConferencesTable < ActiveRecord::Migration
   def change
     add_column :conferences, :registration_start_date, :date

db/migrate/20130107113653_remove_cfp_and_reg_booleans_from_conferences.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RemoveCfpAndRegBooleansFromConferences < ActiveRecord::Migration
   def up
     remove_column :conferences, :cfp_open

db/migrate/20130107114930_create_versions.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateVersions < ActiveRecord::Migration
   def self.up
     create_table :versions do |t|

db/migrate/20130113105652_create_email_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEmailTable < ActiveRecord::Migration
   def up
     create_table :email_settings do |t|

db/migrate/20130113132225_add_subjects_to_email_settings.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddSubjectsToEmailSettings < ActiveRecord::Migration
   def change
     add_column :email_settings, :registration_subject, :string

db/migrate/20130117130949_add_logo_to_conferences_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddLogoToConferencesTable < ActiveRecord::Migration
   def change
     add_column :conferences, :logo_file_name, :string

db/migrate/20130120104029_change_arrival_registrations_date_to_datetime.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangeArrivalRegistrationsDateToDatetime < ActiveRecord::Migration
   def up
     change_column :registrations, :arrival, :datetime

db/migrate/20130131100257_add_minimum_and_maximum_abstract_lengths_to_event_types.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddMinimumAndMaximumAbstractLengthsToEventTypes < ActiveRecord::Migration
   def change
     add_column :event_types, :minimum_abstract_length, :integer, default: 0

db/migrate/20130202091022_add_dietary_choice_to_conferences.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddDietaryChoiceToConferences < ActiveRecord::Migration
   def change
     add_column :conferences, :use_dietary_choices, :boolean, default: false

db/migrate/20130202091051_create_dietary_choices_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateDietaryChoicesTable < ActiveRecord::Migration
   def up
     create_table :dietary_choices do |t|

db/migrate/20130202091229_add_dietary_choice_to_registration.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddDietaryChoiceToRegistration < ActiveRecord::Migration
   def change
     add_column :registrations, :dietary_choice_id, :integer

db/migrate/20130202093137_add_dietary_text_to_registration.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddDietaryTextToRegistration < ActiveRecord::Migration
   def change
     add_column :registrations, :other_dietary_choice, :text

db/migrate/20130202102024_add_handicapped_access_to_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddHandicappedAccessToRegistrations < ActiveRecord::Migration
   def change
     add_column :registrations, :handicapped_access_required, :boolean, default: false

db/migrate/20130202130737_create_supporter_level_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateSupporterLevelTable < ActiveRecord::Migration
   def up
     create_table :supporter_levels do |t|

db/migrate/20130202130923_create_table_supporter_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateTableSupporterRegistrations < ActiveRecord::Migration
   def up
     create_table :supporter_registrations do |t|

db/migrate/20130202131932_add_use_supporter_levels_to_conferences.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddUseSupporterLevelsToConferences < ActiveRecord::Migration
   def change
     add_column :conferences, :use_supporter_levels, :boolean, default: false

db/migrate/20130206192339_rename_attending_social_events_with_partner.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RenameAttendingSocialEventsWithPartner < ActiveRecord::Migration
   def up
     rename_column :registrations, :attending_social_events_with_partner, :attending_with_partner

db/migrate/20130211170728_add_irc_nick_to_people_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddIrcNickToPeopleTable < ActiveRecord::Migration
   def change
     add_column :people, :irc_nickname, :string

db/migrate/20130216070725_create_social_events_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateSocialEventsTable < ActiveRecord::Migration
   def up
     create_table :social_events do |t|

db/migrate/20130216120112_create_registrations_social_events_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateRegistrationsSocialEventsTable < ActiveRecord::Migration
   def up
     create_table :registrations_social_events, id: false do |t|

db/migrate/20130216122155_set_registration_defaults_to_false.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class SetRegistrationDefaultsToFalse < ActiveRecord::Migration
   def up
     change_column :registrations, :using_affiliated_lodging, :boolean, default: false

db/migrate/20130216122417_add_special_needs_field_to_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddSpecialNeedsFieldToRegistrations < ActiveRecord::Migration
   def change
     add_column :registrations, :other_special_needs, :text

db/migrate/20130515125823_change_attachment_default.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangeAttachmentDefault < ActiveRecord::Migration
   def up
     change_column_default(:event_attachments, :public, true)

db/migrate/20130515131420_change_venue_types.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangeVenueTypes < ActiveRecord::Migration
   def up
     change_column :venues, :name, :text

db/migrate/20130626095459_add_video_id_to_events.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddVideoIdToEvents < ActiveRecord::Migration
   def change
     add_column :events, :video_id, :string

db/migrate/20130705055128_add_revision_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddRevisionToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :revision, :integer

db/migrate/20130711043459_create_events_registrations_table.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEventsRegistrationsTable < ActiveRecord::Migration
   def up
     create_table :events_registrations, id: false do |t|

db/migrate/20130711044247_add_require_registration_to_events.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddRequireRegistrationToEvents < ActiveRecord::Migration
   def change
     add_column :events, :require_registration, :boolean

db/migrate/20130712072609_add_attended_to_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddAttendedToRegistrations < ActiveRecord::Migration
   def change
     add_column :registrations, :attended, :boolean, default: 0

db/migrate/20130728055450_add_schedule_changes_to_call_for_papers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddScheduleChangesToCallForPapers < ActiveRecord::Migration
   def change
     add_column :call_for_papers, :schedule_changes, :boolean, default: 0

db/migrate/20130815085420_create_votes.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateVotes < ActiveRecord::Migration
   def up
     create_table :votes do |t|

db/migrate/20130815201317_add_rating_to_call_for_papers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddRatingToCallForPapers < ActiveRecord::Migration
   def change
     add_column :call_for_papers, :rating, :integer, null: 1

db/migrate/20130815201511_add_rating_desc_to_call_for_papers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddRatingDescToCallForPapers < ActiveRecord::Migration
   def change
     add_column :call_for_papers, :rating_desc, :text

db/migrate/20130821094246_add_volunteer_to_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddVolunteerToRegistrations < ActiveRecord::Migration
   def change
     add_column :registrations, :volunteer, :boolean

db/migrate/20130821102003_add_volunteer_experience_to_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddVolunteerExperienceToRegistrations < ActiveRecord::Migration
   def change
     add_column :people, :volunteer_experience, :text

db/migrate/20130821102047_add_tshirt_to_people.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddTshirtToPeople < ActiveRecord::Migration
   def change
     add_column :people, :tshirt, :string

db/migrate/20130821102108_add_mobile_to_people.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddMobileToPeople < ActiveRecord::Migration
   def change
     add_column :people, :mobile, :string

db/migrate/20130821102404_add_languages_to_people.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddLanguagesToPeople < ActiveRecord::Migration
   def change
     add_column :people, :languages, :string

db/migrate/20130821102543_add_use_vpositions_to_conferences.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddUseVpositionsToConferences < ActiveRecord::Migration
   def change
     add_column :conferences, :use_vpositions, :boolean

db/migrate/20130821102618_add_use_vdays_to_conferences.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddUseVdaysToConferences < ActiveRecord::Migration
   def change
     add_column :conferences, :use_vdays, :boolean

db/migrate/20130821133651_create_vpositions.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateVpositions < ActiveRecord::Migration
   def up
     create_table :vpositions do |t|

db/migrate/20130821133850_create_vdays.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateVdays < ActiveRecord::Migration
   def up
     create_table :vdays do |t|

db/migrate/20131022131450_add_created_at_to_supporter_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddCreatedAtToSupporterRegistrations < ActiveRecord::Migration
   def change
     add_column :supporter_registrations, :created_at, :datetime

db/migrate/20131228132353_change_default_rating_in_call_for_papers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangeDefaultRatingInCallForPapers < ActiveRecord::Migration
   def up
     change_column :call_for_papers, :rating, :integer, default: 3

db/migrate/20131228214532_create_vchoices.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateVchoices < ActiveRecord::Migration
   def change
     create_table :vchoices do |t|

db/migrate/20131229072532_registrations_vchoices.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RegistrationsVchoices < ActiveRecord::Migration
   def up
     create_table :registrations_vchoices, id: false do |t|

db/migrate/20140109190643_create_questions.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateQuestions < ActiveRecord::Migration
   def change
     create_table :questions do |t|

db/migrate/20140109190844_create_question_types.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateQuestionTypes < ActiveRecord::Migration
   def change
     create_table :question_types do |t|

db/migrate/20140109191042_create_answers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateAnswers < ActiveRecord::Migration
   def change
     create_table :answers do |t|

db/migrate/20140109191145_create_qanswers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateQanswers < ActiveRecord::Migration
   def change
     create_table :qanswers do |t|

db/migrate/20140109191321_create_conferences_questions.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateConferencesQuestions < ActiveRecord::Migration
   def change
     create_table :conferences_questions, id: false do |t|

db/migrate/20140112192801_create_qanswers_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateQanswersRegistrations < ActiveRecord::Migration
   def change
     create_table :qanswers_registrations, id: false do |t|

db/migrate/20140212172244_create_difficulty_levels.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateDifficultyLevels < ActiveRecord::Migration
   def change
     create_table :difficulty_levels do |t|

db/migrate/20140212175251_add_use_difficulty_levels_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddUseDifficultyLevelsToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :use_difficulty_levels, :boolean, default: false

db/migrate/20140213122424_add_difficulty_level_id_to_events.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddDifficultyLevelIdToEvents < ActiveRecord::Migration
   def change
     add_column :events, :difficulty_level_id, :integer

db/migrate/20140304192527_add_use_volunteers_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddUseVolunteersToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :use_volunteers, :boolean

db/migrate/20140305102505_use_vdays_vpositions_defaults.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UseVdaysVpositionsDefaults < ActiveRecord::Migration
   def up
     change_column :conferences, :use_vpositions, :boolean, default: false

db/migrate/20140319143547_rename_video_to_media_on_events.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RenameVideoToMediaOnEvents < ActiveRecord::Migration
   def up
     rename_column :events, :video_id, :media_id

db/migrate/20140401094729_add_schedule_public_to_call_for_papers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddSchedulePublicToCallForPapers < ActiveRecord::Migration
   def change
     add_column :call_for_papers, :schedule_public, :boolean

db/migrate/20140414131028_add_video_to_conferences.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddVideoToConferences < ActiveRecord::Migration
   def change
     add_column :conferences, :media_id, :string

db/migrate/20140514140013_remove_rating_desc_from_cfp.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RemoveRatingDescFromCfp < ActiveRecord::Migration
   def up
     remove_column :call_for_papers, :rating_desc

db/migrate/20140528072939_add_color_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddColorToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :color, :string, default: '#000000'

db/migrate/20140528084706_add_description_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddDescriptionToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :description, :text

db/migrate/20140528115842_add_registration_description_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddRegistrationDescriptionToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :registration_description, :text

db/migrate/20140529133052_add_ticket_description_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddTicketDescriptionToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :ticket_description, :text

db/migrate/20140529133228_add_description_to_supporter_level.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddDescriptionToSupporterLevel < ActiveRecord::Migration
   def change
     add_column :supporter_levels, :description, :text

db/migrate/20140529133339_add_ticket_price_to_supporter_level.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddTicketPriceToSupporterLevel < ActiveRecord::Migration
   def change
     add_column :supporter_levels, :ticket_price, :string

db/migrate/20140530082708_remove_color_defaults.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RemoveColorDefaults < ActiveRecord::Migration
   def change
     change_column_default(:tracks, :color, nil)

db/migrate/20140603092041_create_openids.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateOpenids < ActiveRecord::Migration
   def change
     create_table :openids do |t|

db/migrate/20140604061951_create_lodgings.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateLodgings < ActiveRecord::Migration
   def change
     create_table :lodgings do |t|

db/migrate/20140604142949_remove_hard_deadline_from_call_for_papers.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class RemoveHardDeadlineFromCallForPapers < ActiveRecord::Migration
   def up
     remove_column :call_for_papers, :hard_deadline

db/migrate/20140605055802_create_sponsorship_levels.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateSponsorshipLevels < ActiveRecord::Migration
   def change
     create_table :sponsorship_levels do |t|

db/migrate/20140605115251_create_sponsors.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateSponsors < ActiveRecord::Migration
   def change
     create_table :sponsors do |t|

db/migrate/20140605125153_update_event_states.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class UpdateEventStates < ActiveRecord::Migration
   def change
     execute "UPDATE events SET state='new' WHERE state = 'review';"

db/migrate/20140606102331_add_sponsor_description_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddSponsorDescriptionToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :sponsor_description, :text

db/migrate/20140606102358_add_sponsor_email_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddSponsorEmailToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :sponsor_email, :string

db/migrate/20140609172219_add_person_attributes_to_user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddPersonAttributesToUser < ActiveRecord::Migration
   def change
     add_column :users, :name, :string

db/migrate/20140610064046_create_photos.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreatePhotos < ActiveRecord::Migration
   def change
     create_table :photos do |t|

db/migrate/20140610163947_create_event_users.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class CreateEventUsers < ActiveRecord::Migration
   class TempPerson < ActiveRecord::Base
     self.table_name = 'people'

db/migrate/20140610165551_migrate_data_person_to_user.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class MigrateDataPersonToUser < ActiveRecord::Migration
   class TempPerson < ActiveRecord::Base
     self.table_name = 'people'

db/migrate/20140610173021_change_person_id_to_user_id_in_registrations.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangePersonIdToUserIdInRegistrations < ActiveRecord::Migration
   class TempPerson < ActiveRecord::Base
     self.table_name = 'people'

db/migrate/20140611123926_change_person_id_to_user_id_in_votes.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class ChangePersonIdToUserIdInVotes < ActiveRecord::Migration
   class TempPerson < ActiveRecord::Base
     self.table_name = 'people'

db/migrate/20140612141123_add_color_to_event_type.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddColorToEventType < ActiveRecord::Migration
   def change
     add_column :event_types, :color, :string

db/migrate/20140612181230_add_social_urls_to_conference.rb

@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 class AddSocialUrlsToConference < ActiveRecord::Migration
   def change
     add_column :conferences, :twitter_url, :string