16 db/migrate/*_creative_commons_v??_licenses_attributes.rb
17 db/migrate/*_pettan_commons_v??_licenses_attributes.rb
18 db/migrate/*_pettan_protected_v??_licenses_attributes.rb
19 db/migrate/*_pettan_public_v??_licenses_attributes.rb
20 db/migrate/*_public_domain_v??_licenses_attributes.rb
21 db/migrate/*_unknown_v??_licenses_attributes.rb