Inherit from ActiveRecord::Migration[4.2]

db/migrate/20140728105159_devise_create_users.rb

@@ -1,4 +1,4 @@
-class DeviseCreateUsers < ActiveRecord::Migration
+class DeviseCreateUsers < ActiveRecord::Migration[4.2]
   def change
     create_table(:users) do |t|
       ## Database authenticatable

db/migrate/20140807103632_create_speaker_profiles.rb

@@ -1,4 +1,4 @@
-class CreateSpeakerProfiles < ActiveRecord::Migration
+class CreateSpeakerProfiles < ActiveRecord::Migration[4.2]
   def change
     create_table :speaker_profiles do |t|
       t.string :first_name

db/migrate/20140807103805_remove_speaker_profile_columns_from_users.rb

@@ -1,4 +1,4 @@
-class RemoveSpeakerProfileColumnsFromUsers < ActiveRecord::Migration
+class RemoveSpeakerProfileColumnsFromUsers < ActiveRecord::Migration[4.2]
   def change
     remove_column :users, :first_name, :string
     remove_column :users, :last_name, :string

db/migrate/20140807104059_add_user_reference_to_speaker_profiles.rb

@@ -1,4 +1,4 @@
-class AddUserReferenceToSpeakerProfiles < ActiveRecord::Migration
+class AddUserReferenceToSpeakerProfiles < ActiveRecord::Migration[4.2]
   def change
     add_reference :speaker_profiles, :user, index: true
   end

db/migrate/20140810162730_create_conferences.rb

@@ -1,4 +1,4 @@
-class CreateConferences < ActiveRecord::Migration
+class CreateConferences < ActiveRecord::Migration[4.2]
   def change
     create_table :conferences do |t|
       t.string :title, null: false

db/migrate/20140810172123_create_tracks.rb

@@ -1,4 +1,4 @@
-class CreateTracks < ActiveRecord::Migration
+class CreateTracks < ActiveRecord::Migration[4.2]
   def change
     create_table :tracks do |t|
       t.string :name, null: false

db/migrate/20140810174338_create_events.rb

@@ -1,4 +1,4 @@
-class CreateEvents < ActiveRecord::Migration
+class CreateEvents < ActiveRecord::Migration[4.2]
   def change
     create_table :events do |t|
       t.string :title, null: false

db/migrate/20140831121527_rename_picture_url_to_picture_in_speaker_profiles.rb

@@ -1,4 +1,4 @@
-class RenamePictureUrlToPictureInSpeakerProfiles < ActiveRecord::Migration
+class RenamePictureUrlToPictureInSpeakerProfiles < ActiveRecord::Migration[4.2]
   def change
     rename_column :speaker_profiles, :photo_url, :picture
   end

db/migrate/20140901103859_add_translation_tables_to_conferences.rb

@@ -1,4 +1,4 @@
-class AddTranslationTablesToConferences < ActiveRecord::Migration
+class AddTranslationTablesToConferences < ActiveRecord::Migration[4.2]
   def up
     Conference.create_translation_table!({
                                      :title => :string,

db/migrate/20140902144335_add_admin_flag_to_users.rb

@@ -1,4 +1,4 @@
-class AddAdminFlagToUsers < ActiveRecord::Migration
+class AddAdminFlagToUsers < ActiveRecord::Migration[4.2]
   def change
     add_column :users, :admin, :boolean, null: false, default: false
   end

db/migrate/20140906151300_add_description_to_tracks.rb

@@ -1,4 +1,4 @@
-class AddDescriptionToTracks < ActiveRecord::Migration
+class AddDescriptionToTracks < ActiveRecord::Migration[4.2]
   def change
     add_column :tracks, :description, :text
   end

db/migrate/20140906151433_add_translation_tables_to_tracks.rb

@@ -1,4 +1,4 @@
-class AddTranslationTablesToTracks < ActiveRecord::Migration
+class AddTranslationTablesToTracks < ActiveRecord::Migration[4.2]
   def up
     Track.create_translation_table!({
                                       name: :string,

db/migrate/20141010142514_change_event_state_defaults.rb

@@ -1,4 +1,4 @@
-class ChangeEventStateDefaults < ActiveRecord::Migration
+class ChangeEventStateDefaults < ActiveRecord::Migration[4.2]
   def up
     execute 'UPDATE events SET state = 0'
     change_column :events, :state, :integer, null: false, default: 0

db/migrate/20141012100900_create_halls.rb

@@ -1,4 +1,4 @@
-class CreateHalls < ActiveRecord::Migration
+class CreateHalls < ActiveRecord::Migration[4.2]
   def change
     create_table :halls do |t|
       t.references :conference, index: true

db/migrate/20141012101004_create_slots.rb

@@ -1,4 +1,4 @@
-class CreateSlots < ActiveRecord::Migration
+class CreateSlots < ActiveRecord::Migration[4.2]
   def change
     create_table :slots do |t|
       t.references :hall, index: true

db/migrate/20141012110528_add_acceptance_email_fields_to_events.rb

@@ -1,4 +1,4 @@
-class AddAcceptanceEmailFieldsToEvents < ActiveRecord::Migration
+class AddAcceptanceEmailFieldsToEvents < ActiveRecord::Migration[4.2]
   def change
     add_column :events, :acceptance_notification_sent_at, :timestamp
     add_column :events, :confirmed_at, :timestamp

db/migrate/20141013134153_create_events_to_speakers_join_table.rb

@@ -1,4 +1,4 @@
-class CreateEventsToSpeakersJoinTable < ActiveRecord::Migration
+class CreateEventsToSpeakersJoinTable < ActiveRecord::Migration[4.2]
   def up
     create_join_table :events, :speaker_profiles
     Event.all.each do |event|

db/migrate/20141014181014_add_call_for_papers_status_to_conferences.rb

@@ -1,4 +1,4 @@
-class AddCallForPapersStatusToConferences < ActiveRecord::Migration
+class AddCallForPapersStatusToConferences < ActiveRecord::Migration[4.2]
   def change
     add_column :conferences, :call_for_papers_open, :boolean
   end

db/migrate/20141105100105_create_propositions.rb

@@ -1,4 +1,4 @@
-class CreatePropositions < ActiveRecord::Migration
+class CreatePropositions < ActiveRecord::Migration[4.2]
   def change
     create_table :propositions do |t|
       t.references :proposer, index: true

db/migrate/20141105100827_create_propositions_for_existing_events.rb

@@ -1,4 +1,4 @@
-class CreatePropositionsForExistingEvents < ActiveRecord::Migration
+class CreatePropositionsForExistingEvents < ActiveRecord::Migration[4.2]
   def up
     events = execute 'SELECT * FROM events'
 

db/migrate/20150408204739_remove_not_null_constraint_on_conference_title.rb

@@ -1,4 +1,4 @@
-class RemoveNotNullConstraintOnConferenceTitle < ActiveRecord::Migration
+class RemoveNotNullConstraintOnConferenceTitle < ActiveRecord::Migration[4.2]
   def change
     change_column :conferences, :title, :string, null: true
   end

db/migrate/20150408204855_remove_not_null_constraint_on_conference_description.rb

@@ -1,4 +1,4 @@
-class RemoveNotNullConstraintOnConferenceDescription < ActiveRecord::Migration
+class RemoveNotNullConstraintOnConferenceDescription < ActiveRecord::Migration[4.2]
   def change
     change_column :conferences, :description, :text, null: true
   end

db/migrate/20150408205015_remove_not_null_constraint_on_track_name.rb

@@ -1,4 +1,4 @@
-class RemoveNotNullConstraintOnTrackName < ActiveRecord::Migration
+class RemoveNotNullConstraintOnTrackName < ActiveRecord::Migration[4.2]
   def change
     change_column :tracks, :name, :text, null: true
   end

db/migrate/20150416232523_create_event_types.rb

@@ -1,4 +1,4 @@
-class CreateEventTypes < ActiveRecord::Migration
+class CreateEventTypes < ActiveRecord::Migration[4.2]
   def up
     create_table :event_types do |t|
       t.references :conference, index: true, foreign_key: true

db/migrate/20150416234411_create_event_types_for_all_existing_events.rb

@@ -1,7 +1,7 @@
 class EventType < ActiveRecord::Base
 end
 
-class CreateEventTypesForAllExistingEvents < ActiveRecord::Migration
+class CreateEventTypesForAllExistingEvents < ActiveRecord::Migration[4.2]
   def up
     event_types = execute 'SELECT events.type AS type_name, tracks.conference_id, MIN(events.created_at) AS created_at FROM events
                            INNER JOIN tracks ON tracks.id = events.track_id

db/migrate/20150417002119_add_event_type_to_events.rb

@@ -1,4 +1,4 @@
-class AddEventTypeToEvents < ActiveRecord::Migration
+class AddEventTypeToEvents < ActiveRecord::Migration[4.2]
   def change
     add_reference :events, :event_type, index: true, foreign_key: true
   end

db/migrate/20150417002233_populate_event_type_of_existing_events.rb

@@ -1,4 +1,4 @@
-class PopulateEventTypeOfExistingEvents < ActiveRecord::Migration
+class PopulateEventTypeOfExistingEvents < ActiveRecord::Migration[4.2]
   def up
     event_ids = execute('SELECT id FROM events WHERE type IS NOT NULL;').map { |row| row['id'] };
 

db/migrate/20150417004249_remove_unneeded_columns_from_events.rb

@@ -1,4 +1,4 @@
-class RemoveUnneededColumnsFromEvents < ActiveRecord::Migration
+class RemoveUnneededColumnsFromEvents < ActiveRecord::Migration[4.2]
   def change
     remove_index :events, name: :index_events_on_track_id, column: :track_id
     remove_index :events, name: :index_events_on_type, column: :type

db/migrate/20150420154042_create_call_for_participations.rb

@@ -1,4 +1,4 @@
-class CreateCallForParticipations < ActiveRecord::Migration
+class CreateCallForParticipations < ActiveRecord::Migration[4.2]
   def change
     create_table :call_for_participations do |t|
       t.references :conference, index: true, foreign_key: true

db/migrate/20150524160616_create_call_for_participation_records.rb

@@ -1,7 +1,7 @@
 class Conference           < ActiveRecord::Base; end
 class CallForParticipation < ActiveRecord::Base; end
 
-class CreateCallForParticipationRecords < ActiveRecord::Migration
+class CreateCallForParticipationRecords < ActiveRecord::Migration[4.2]
   def change
     Conference.all.each do |c|
       CallForParticipation.create!(conference_id: c.id)

db/migrate/20150530181525_rename_speaker_profiles_to_personal_profiles.rb

@@ -1,4 +1,4 @@
-class RenameSpeakerProfilesToPersonalProfiles < ActiveRecord::Migration
+class RenameSpeakerProfilesToPersonalProfiles < ActiveRecord::Migration[4.2]
   def change
     rename_table :speaker_profiles, :personal_profiles
   end

db/migrate/20150530182514_add_conference_id_to_personal_profiles.rb

@@ -1,4 +1,4 @@
-class AddConferenceIdToPersonalProfiles < ActiveRecord::Migration
+class AddConferenceIdToPersonalProfiles < ActiveRecord::Migration[4.2]
   def change
     add_column :personal_profiles, :conference_id, :integer
     add_index :personal_profiles, :conference_id

db/migrate/20150530182857_populate_conference_id_in_personal_profiles.rb

@@ -4,7 +4,7 @@ end
 class PersonalProfile < ActiveRecord::Base
 end
 
-class PopulateConferenceIdInPersonalProfiles < ActiveRecord::Migration
+class PopulateConferenceIdInPersonalProfiles < ActiveRecord::Migration[4.2]
   def change
     conference = Conference.first
 

db/migrate/20150712103000_add_slug_to_conferences.rb

@@ -1,4 +1,4 @@
-class AddSlugToConferences < ActiveRecord::Migration
+class AddSlugToConferences < ActiveRecord::Migration[4.2]
   def change
     add_column :conferences, :slug, :string
     add_index :conferences, :slug

db/migrate/20150719114546_remove_slug_from_conferences.rb

@@ -1,4 +1,4 @@
-class RemoveSlugFromConferences < ActiveRecord::Migration
+class RemoveSlugFromConferences < ActiveRecord::Migration[4.2]
   def change
     remove_column :conferences, :slug
   end

db/migrate/20150719170422_add_description_to_event_types.rb

@@ -1,4 +1,4 @@
-class AddDescriptionToEventTypes < ActiveRecord::Migration
+class AddDescriptionToEventTypes < ActiveRecord::Migration[4.2]
   def change
     add_column :event_types, :description, :text
   end

db/migrate/20150729135346_create_participations.rb

@@ -1,4 +1,4 @@
-class CreateParticipations < ActiveRecord::Migration
+class CreateParticipations < ActiveRecord::Migration[4.2]
   def change
     create_table :participations do |t|
       t.references :participant, index: true

db/migrate/20150729135818_create_participation_records.rb

@@ -1,7 +1,7 @@
 class Participation   < ActiveRecord::Base; end
 class PersonalProfile < ActiveRecord::Base; end
 
-class CreateParticipationRecords < ActiveRecord::Migration
+class CreateParticipationRecords < ActiveRecord::Migration[4.2]
   def up
     event_to_speaker_profiles = execute 'SELECT * FROM events_speaker_profiles'
 

db/migrate/20150729145831_drop_join_table_events_sepaker_profiles.rb

@@ -1,4 +1,4 @@
-class DropJoinTableEventsSepakerProfiles < ActiveRecord::Migration
+class DropJoinTableEventsSepakerProfiles < ActiveRecord::Migration[4.2]
   def up
     drop_table :events_speaker_profiles
   end

db/migrate/20150805161830_add_language_to_users.rb

@@ -1,4 +1,4 @@
-class AddLanguageToUsers < ActiveRecord::Migration
+class AddLanguageToUsers < ActiveRecord::Migration[4.2]
   def change
     add_column :users, :language, :string
   end

db/migrate/20150814202053_add_conference_id_to_events.rb

@@ -10,7 +10,7 @@ end
 class Track < ActiveRecord::Base
 end
 
-class AddConferenceIdToEvents < ActiveRecord::Migration
+class AddConferenceIdToEvents < ActiveRecord::Migration[4.2]
   def up
     add_reference :events, :conference, index: true, foreign_key: true
 

db/migrate/20150814203341_add_track_id_to_events.rb

@@ -6,7 +6,7 @@ class Proposition < ActiveRecord::Base
   belongs_to :proposable, polymorphic: true
 end
 
-class AddTrackIdToEvents < ActiveRecord::Migration
+class AddTrackIdToEvents < ActiveRecord::Migration[4.2]
   def up
     add_reference :events, :track, index: true, foreign_key: true
 

db/migrate/20150814204500_remove_proposition_accepting_fields_from_propositions.rb

@@ -1,4 +1,4 @@
-class RemovePropositionAcceptingFieldsFromPropositions < ActiveRecord::Migration
+class RemovePropositionAcceptingFieldsFromPropositions < ActiveRecord::Migration[4.2]
   def change
     remove_reference :propositions, :proposition_accepting, index: true, polymorphic: true
   end

db/migrate/20150815030159_add_host_name_to_conferences.rb

@@ -1,4 +1,4 @@
-class AddHostNameToConferences < ActiveRecord::Migration
+class AddHostNameToConferences < ActiveRecord::Migration[4.2]
   def change
     add_column :conferences, :host_name, :string
     add_index :conferences, :host_name

db/migrate/20150819205900_add_time_limits_to_event_types.rb

@@ -1,4 +1,4 @@
-class AddTimeLimitsToEventTypes < ActiveRecord::Migration
+class AddTimeLimitsToEventTypes < ActiveRecord::Migration[4.2]
   def change
     add_column :event_types, :minimum_length, :integer
     add_column :event_types, :maximum_length, :integer

db/migrate/20150819213202_drop_default_value_for_length_in_events.rb

@@ -1,4 +1,4 @@
-class DropDefaultValueForLengthInEvents < ActiveRecord::Migration
+class DropDefaultValueForLengthInEvents < ActiveRecord::Migration[4.2]
   def change
     change_column_default(:events, :length, nil)
   end

db/migrate/20150901074818_create_volunteer_teams.rb

@@ -1,4 +1,4 @@
-class CreateVolunteerTeams < ActiveRecord::Migration
+class CreateVolunteerTeams < ActiveRecord::Migration[4.2]
   def up
     create_table :volunteer_teams do |t|
       t.references :conference, index: true, foreign_key: true

db/migrate/20150901091814_create_volunteerships.rb

@@ -1,4 +1,4 @@
-class CreateVolunteerships < ActiveRecord::Migration
+class CreateVolunteerships < ActiveRecord::Migration[4.2]
   def change
     create_table :volunteerships do |t|
       t.references :volunteer_team, index: true, foreign_key: true

db/migrate/20151018105303_add_css_class_to_tracks.rb

@@ -1,4 +1,4 @@
-class AddCssClassToTracks < ActiveRecord::Migration
+class AddCssClassToTracks < ActiveRecord::Migration[4.2]
   def change
     add_column :tracks, :css_class, :string
   end

db/migrate/20151018105806_add_css_style_string_to_tracks.rb

@@ -1,4 +1,4 @@
-class AddCssStyleStringToTracks < ActiveRecord::Migration
+class AddCssStyleStringToTracks < ActiveRecord::Migration[4.2]
   def change
     add_column :tracks, :css_style, :text
   end

db/migrate/20151018105933_add_foreground_color_to_tracks.rb

@@ -1,4 +1,4 @@
-class AddForegroundColorToTracks < ActiveRecord::Migration
+class AddForegroundColorToTracks < ActiveRecord::Migration[4.2]
   def change
     add_column :tracks, :foreground_color, :string
   end

db/migrate/20151018211611_add_confirmed_at_to_propositions.rb

@@ -1,4 +1,4 @@
-class AddConfirmedAtToPropositions < ActiveRecord::Migration
+class AddConfirmedAtToPropositions < ActiveRecord::Migration[4.2]
   def change
     add_column :propositions, :confirmed_at, :timestamp
   end

db/migrate/20151018211712_populate_confirmed_at_of_propositions_for_events.rb

@@ -2,7 +2,7 @@ class Event < ActiveRecord::Base
   include Proposable
 end
 
-class PopulateConfirmedAtOfPropositionsForEvents < ActiveRecord::Migration
+class PopulateConfirmedAtOfPropositionsForEvents < ActiveRecord::Migration[4.2]
   def up
     Event.all do |event|
       event.proposition.update(confirmed_at: event.confirmed_at)

db/migrate/20151018212026_remove_confirmed_at_from_events.rb

@@ -1,4 +1,4 @@
-class RemoveConfirmedAtFromEvents < ActiveRecord::Migration
+class RemoveConfirmedAtFromEvents < ActiveRecord::Migration[4.2]
   def change
     remove_column :events, :confirmed_at, :timestamp
   end

db/migrate/20151020071227_add_translations_to_halls.rb

@@ -1,4 +1,4 @@
-class AddTranslationsToHalls < ActiveRecord::Migration
+class AddTranslationsToHalls < ActiveRecord::Migration[4.2]
   def self.up
     Hall.create_translation_table!({
       :name => :string

db/migrate/20151021162134_create_volunteers.rb

@@ -1,4 +1,4 @@
-class CreateVolunteers < ActiveRecord::Migration
+class CreateVolunteers < ActiveRecord::Migration[4.2]
   def change
     create_table :volunteers do |t|
       t.string :name

db/migrate/20151021183039_create_join_table_volunteer_volunteer_team.rb

@@ -1,4 +1,4 @@
-class CreateJoinTableVolunteerVolunteerTeam < ActiveRecord::Migration
+class CreateJoinTableVolunteerVolunteerTeam < ActiveRecord::Migration[4.2]
   def change
     create_join_table :volunteers, :volunteer_teams do |t|
       t.index [:volunteer_id, :volunteer_team_id], name: 'volunteer_id_volunteer_team_id'

db/migrate/20151021185100_add_conference_id_to_volunteers.rb

@@ -1,4 +1,4 @@
-class AddConferenceIdToVolunteers < ActiveRecord::Migration
+class AddConferenceIdToVolunteers < ActiveRecord::Migration[4.2]
   def change
     add_reference :volunteers, :conference, index: true, foreign_key: true
   end

db/migrate/20151021190854_add_language_to_volunteers.rb

@@ -1,4 +1,4 @@
-class AddLanguageToVolunteers < ActiveRecord::Migration
+class AddLanguageToVolunteers < ActiveRecord::Migration[4.2]
   def change
     add_column :volunteers, :language, :string
   end

db/migrate/20160705153038_add_planned_cfp_end_date_to_conferences.rb

@@ -1,4 +1,4 @@
-class AddPlannedCfpEndDateToConferences < ActiveRecord::Migration
+class AddPlannedCfpEndDateToConferences < ActiveRecord::Migration[4.2]
   def change
     add_column :conferences, :planned_cfp_end_date, :date
   end

db/migrate/20161010163747_add_vote_data_to_conferences.rb

@@ -1,4 +1,4 @@
-class AddVoteDataToConferences < ActiveRecord::Migration
+class AddVoteDataToConferences < ActiveRecord::Migration[4.2]
   def change
     add_column :conferences, :vote_data_endpoint, :string
     add_column :conferences, :number_of_ballots_cast, :integer

db/migrate/20161010170711_add_vote_data_to_events.rb

@@ -1,4 +1,4 @@
-class AddVoteDataToEvents < ActiveRecord::Migration
+class AddVoteDataToEvents < ActiveRecord::Migration[4.2]
   def change
     add_column :events, :number_of_votes, :integer
     add_column :events, :rank, :integer

db/migrate/20161011005219_set_minimal_and_maximal_times_for_all_event_types.rb

@@ -1,7 +1,7 @@
 class EventType < ActiveRecord::Base
 end
 
-class SetMinimalAndMaximalTimesForAllEventTypes < ActiveRecord::Migration
+class SetMinimalAndMaximalTimesForAllEventTypes < ActiveRecord::Migration[4.2]
   def up
     EventType.where(minimum_length: nil).update_all(minimum_length: 0)
     EventType.where(maximum_length: nil).update_all(maximum_length: 240)

db/migrate/20161011005420_add_descriptions_for_all_events.rb

@@ -1,7 +1,7 @@
 class Event < ActiveRecord::Base
 end
 
-class AddDescriptionsForAllEvents < ActiveRecord::Migration
+class AddDescriptionsForAllEvents < ActiveRecord::Migration[4.2]
   def up
     Event.where(description: [nil, '']).update_all(description: 'n/a')
   end

db/migrate/20161012185931_create_conflict_counts.rb

@@ -1,4 +1,4 @@
-class CreateConflictCounts < ActiveRecord::Migration
+class CreateConflictCounts < ActiveRecord::Migration[4.2]
   def change
     create_table :conflict_counts do |t|
       t.references :left, index: true

db/migrate/20161015023007_add_participants_view.rb

@@ -13,7 +13,7 @@ LEFT JOIN "personal_profiles"  ON "personal_profiles"."conference_id" = "events"
                               AND "personal_profiles"."user_id" = "users"."id";
 EOS
 
-class AddParticipantsView < ActiveRecord::Migration
+class AddParticipantsView < ActiveRecord::Migration[4.2]
   def up
     execute PARTICIPANTS_SQL
   end

db/migrate/20171022182011_create_feedbacks.rb

@@ -1,4 +1,4 @@
-class CreateFeedbacks < ActiveRecord::Migration
+class CreateFeedbacks < ActiveRecord::Migration[4.2]
   def change
     create_table :feedbacks do |t|
       t.references :feedback_receiving, index: {name: :feedbacks_polymorphic_index}, polymorphic: true, null: false