You shold use *has_many :comments*
instead of *has_many :comment* Then you can call @post.comments Look this example: http://guides.rubyonrails.org/association_basics.html#the-has-many-through-association Take a look at accepts_nested_attributes to create your posts: http://api.rubyonrails.org/classes/ActiveRecord/NestedAttributes/ClassMethods.html 2013/8/22 ank k. <[email protected]> > hi!! I am a newbie in ROR. > > I have two models > > Post > has_many :Comment > > > Comment > belongs_to :Post > > > the error displays when I try to save a comment related to certain post. > I get the following error > ----------------------------------------------------------------- > undefined method `comment' for nil:NilClass > ----------------------------------------------------------------- > my comment controllers > > def new > @comment = Comment.new > render :layout => false > end > > def create > @post = Post.find_by_id(params[:id]) > @post_comment = @post.comment.create(params[:comment]) > if @post_comment.save > redirect_to post_index_path > flash[:success] = "comment created!!" > end > > Could someone please explain why am I getting this error.. > > Thanks in advance :) > > -- > 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 [email protected]. > To post to this group, send email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/rubyonrails-talk/7d1c4682a1e885d80a8023e854db5230%40ruby-forum.com > . > For more options, visit https://groups.google.com/groups/opt_out. > -- 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 [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAKj7%3DuRW5HsLrFxPkz6bey3bXg2qtcn%2B%3D44KVh2arTd5rojsMQ%40mail.gmail.com. For more options, visit https://groups.google.com/groups/opt_out.

