Joao Silva wrote: > Hi, > > I have one field that needs to be incremented automatically, but be > scoped to another column. So it should increment based on the last value > of the previous row with the same value of the scoped column.
Remember to figure out how it will behave with deleted records. > > I'm not trying to replace ID with another primary key or anything crazy > like that, just trying to auto-increment a database column! > > Any idea of how to do this? Rails 3. Thanks! acts_as_list might actually be useful here -- it does more or less this same thing with the position column. Some databases can do this on the DB side. Best, -- Marnen Laibow-Koser http://www.marnen.org mar...@marnen.org -- 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 post to this group, send email to rubyonrails-t...@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
