Ah - I think I understand now. I would add a column to the comments table called 'kind' (as in, 'kind of comment')
The column should be an integer column with limit 1. Then assign a different integer value to determine what kind of comment it is. i.e., 1 = article 2 = photo 3 = movie When you creating a new comment, simply check the value of this integer and redirect accordingly. Does that help? On Feb 22, 3:27 pm, Difei Zhao <[email protected]> wrote: > 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 viahttp://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 -~----------~----~----~----~------~----~------~--~---
