Gavin wrote: > Difei, > > If a comment only belongs to either an article, movie or a photo > (never more than one) you could add methods in the model to determine > which it is for. > > For example: > > class Comment > > def article_comment? > !article_id.nil? > end > end > > @comment.article_comment? will return true if this is a comment for an > article and false if not. > > You could render your view accordingly for each type of comment. > > Hope that helps?
Hi Garvin, but your way is to decide the father of an existed comment. if I just received POST to /articles/:article_id/comments/:comment_id, and I have a: @comment = Comment.new(params[:comment]), how could I tell this @comment is for article but not photo? By test params? Thanks. > > On Feb 21, 5:53�am, Difei Zhao <[email protected]> -- 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---

