Hi All, I am trying to build a private message system on rails 4. I found a great post here, http://stackoverflow.com/questions/8405457/rails-threaded-private-messaging, on stackover flow, but it is unclear to me what the tables should look like. Does anyone have any suggestions with regards to building out the tables? Secondary question: Often when I Google this question, I see symbols or strings that look like this: sender_uid or "receiver_uid" -- what is _uid? I am familiar with, _id, when we are dropping a foreign key in a table. Is appending, _uid, just another syntax for creating foreign keys in tables? Does that mean there are, senders and receivers, tables? -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/286222e2a96ec7bca78d4b13344726b0%40ruby-forum.com. For more options, visit https://groups.google.com/groups/opt_out.