prim 0.0.8
With Prim it's easy to add a primary member to any one-to-many or many-to-many association. Just add a short configuration to a model, generate and run a migration, and you're all set.
Gemfile:
=
安装:
=
Runtime 依赖 (2):
activerecord
~> 3.2.0
activesupport
~> 3.2.0