kelper

  resources :comments, :articles, :profiles do
    resources :comments, :only => [:new, :create, :show]
    has_many :votes
  end

kelper

class CommentsController < ApplicationController
  before_filter :authenticate, :only => [:create, :edit, :update, :destroy]
  before_filter :correct_user, :only => [:edit, :update, :destroy]

  def new
    @commentable = find_commentable
    @comment = Comment.new
    @comment.parent_id = params[:in_reply_to] if params[:in_reply_to]
  end

kelper

There is something wrong with my create method for the comments controller. I get the following error:
Couldn't find Comment without an ID.
I am trying to pass a hidden parent_id from the comment creation form, so a new comment is formed with that particular parent_id. Here's where the error comes in, I try to do this:
@comment_parent = Comment.find(@comment.parent_id),
but I get:
Couldn't find Comment without an ID. It's weird, because on the error page, it clearly says the following:
{"_snowman"=>"☃",
 "authenticity_token"=>"LJtBKOTojGotLb34xUGzBJR14YvfFhW5tx36EfMHai4=",
 "comment"=>{"title"=>"hihi",
 "content"=>"hihi",

kelper

Here is the link that leads to the new comment:
  | <%= link_to "Reply", new_comment_path(:in_reply_to => comment.id) %>

My comments_controller#new:
  def new
    @commentable = find_commentable # Find Article, Profile if it exists
    @comment_parent = Comment.find(params[:in_reply_to]) # Find Comment Parent if it exists
    @comment = Comment.new
  end

kelper

I am trying to get threaded comments to work, but I get this error when I try to access my articles page (which has a comments form on the bottom):
undefined method `comment_comments_path' for #<#<Class:0xabc1060>:0xabc01ec>

Here's the problem code (line 4):
1: <div id="comment <%= comment.id %>">
2:   <%= comment.title %>
3:   | <%= link_to "Permalink", polymorphic_path([@commentable, comment]), :action => :show %>
4:   | <%= link_to "Reply", polymorphic_path([comment, comment.children.new]) %>
5:   | <%= link_to "Edit Comment", polymorphic_path([@commentable, comment]), :action => :edit %>
6:   | <%= link_to 'Delete Comment', [[@commentable, comment]], :confirm => "Are you sure?", :method => :delete %><br />

kelper

TropicalFishProfiles::Application.routes.draw do

  get "sessions/new"

  resources :users
  resources :sessions, :only => [:new, :create, :destroy]
#  resources :articles
#  resources :articles do
#    resources :comments
#  end

kelper

Problem:
I am on the url:
http://localhost:3000/articles/297
I have multiple comments on the page with edit buttons beside them. Except, the edit buttons go here:
http://localhost:3000/articles/320/comments/297/edit
The edit button should be:
http://localhost:3000/articles/297/comments/320/edit
The id's for the comment and the article pages are reversed! I have posted pages that I find associated with the problem.

routes.rb: