https://kpumuk.info/ruby-on-rails/submitting-a-patch-to-the-open-source-project-composite_primary_keys/attachment/commit-3e29891cf521186290570e3e489de079b085e193-to-kpumuk_s-composite_primary_keys-github/ In my blog I'll try to describe about interesting technologies, my discovery in IT and some useful things about programming. Thu, 17 Dec 2009 10:42:26 +0000 hourly 1 https://wordpress.org/?v=6.7.1