openSUSE:Leap:15.2 openSUSE Leap 15.2 openSUSE Leap borrows packages from SLE for the base system. Please refer to https://osrt.opensuse.org/web/origin-manager/#openSUSE:Leap:15.2 for origin information https://download.opensuse.org/distribution/leap/15.2/repo/oss/ rubygem-activerecord-5_1 Object-relational mapper framework (part of Rails) Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.