Contents

class AddConstraintsToMostRecentForUserExportFileTransitions < ActiveRecord::Migration[4.2]
  disable_ddl_transaction!

  def up
    add_index :user_export_file_transitions, %i[user_export_file_id most_recent], unique: true, where: "most_recent", name: "index_user_export_file_transitions_parent_most_recent" # , algorithm: :concurrently
    change_column_null :user_export_file_transitions, :most_recent, false
  end

  def down
    remove_index :user_export_file_transitions, name: "index_user_export_file_transitions_parent_most_recent"
    change_column_null :user_export_file_transitions, :most_recent, true
  end
end

Version data entries

12 entries across 12 versions & 2 rubygems

Version	Path
enju_manifestation_viewer-0.3.5	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.4	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.3	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.2	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_biblio-0.3.2	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_biblio-0.3.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.0	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_biblio-0.3.0	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_biblio-0.3.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.3.0.beta.2	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb