Contents

class AddConstraintsToMostRecentForUserExportFileTransitions < ActiveRecord::Migration[5.2]
  disable_ddl_transaction!

  def up
    add_index :user_export_file_transitions, [: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

10 entries across 10 versions & 10 rubygems

Version	Path
enju_inventory-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_ndl-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_circulation-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_manifestation_viewer-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_subject-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_event-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_message-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_biblio-0.4.0.rc.1	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_library-0.4.0.rc.1	db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb
enju_seed-0.4.0.rc.2	spec/dummy/db/migrate/20180107160740_add_constraints_to_most_recent_for_user_export_file_transitions.rb