internetee-registry/db/migrate/20191004103144_add_reserved_domains_name_uniq_constraint.rb

class AddReservedDomainsNameUniqConstraint < ActiveRecord::Migration[6.0]
  def up
    execute <<-SQL
      ALTER TABLE reserved_domains ADD CONSTRAINT uniq_reserved_domains_name UNIQUE (name);
    SQL
  end

  def down
    execute <<-SQL
      ALTER TABLE reserved_domains DROP CONSTRAINT uniq_reserved_domains_name;
    SQL
  end
end