Acts_as_commentable with threading gem

Comments_controller

class CommentsController < ApplicationController

def create @comment_hash = params[:comment] @obj = @comment_hash[:commentable_type].constantize.find(@comment_hash[:commentable_id]) # Not implemented: check to see whether the user has permission to create a comment on this object @comment = Comment.build_from(@obj, current_user, @comment_hash[:body]) if @comment.save render :partial => "comments/comment", :locals => { :comment => @comment }, :layout => false, :status => :created else render :js => "alert('error saving comment');" end end

def destroy @comment = Comment.find(params[:id]) if @comment.destroy render :json => @comment, :status => :ok else render :js => "alert('error deleting comment');" end end end

Comment.rb - I added the attr_accessible to this but im still getting the error cannont mass assign user_id and i read that adding it to the attr_accessible may not be the best option.

class Comment < ActiveRecord::Base

acts_as_nested_set :scope => [:commentable_id, :commentable_type] attr_accessible :commentable, :body

validates :body, :presence => true validates :user, :presence => true

# NOTE: install the acts_as_votable plugin if you # want user to vote on the quality of comments. #acts_as_votable

belongs_to :commentable, :polymorphic => true

# NOTE: Comments belong to a user belongs_to :user

# Helper class method that allows you to build a comment # by passing a commentable object, a user_id, and comment text # example in readme def self.build_from(obj, user_id, comment) new \ :commentable => obj, :body => comment, :user_id => user_id end

#helper method to check if a comment has children def has_children? self.children.any? end

# Helper class method to lookup all comments assigned # to all commentable types for a given user. scope :find_comments_by_user, lambda { |user| where(:user_id => user.id).order('created_at DESC') }

# Helper class method to look up all comments for # commentable class name and commentable id. scope :find_comments_for_commentable, lambda { |commentable_str, commentable_id| where(:commentable_type => commentable_str.to_s, :commentable_id => commentable_id).order('created_at DESC') }

# Helper class method to look up a commentable object # given the commentable class name and id def self.find_commentable(commentable_str, commentable_id) commentable_str.constantize.find(commentable_id) end end

Views Blog/show.html.erb

<div class="row">
<p id="notice"><%= notice %></p>
<div class="large-8 large-offset-2 columns">
 <h3><%= @blog.title %></h3>
<p>
  <%= dat_markdown(@blog.body) %>
</p>
<%= link_to 'Edit', edit_blog_path(@blog) %> |
<%= link_to 'Back', blogs_path %>
<div>
<hr />
<h2>Comments</h2>
<%= render :partial => 'comments/form', :locals => { comment => @new_comment } %>
<%= render :partial => 'comments/comment', :collection => @comments, :as => :comment%>

</div>

My two partials are haml instead of erb is this ok or should I try to convert it to erb

# _comment.html.haml
%div.comment{ :id => "comment-#{comment.id}" }
  %hr
  = link_to "×", comment_path(comment), :method => :delete, :remote => true, :confirm => "Are you sure you want to remove this comment?", :disable_with => "×", :class => 'close'
  %h4
    = comment.user.profile_name
    %small= comment.updated_at
  %p= comment.body

Blogs/_form.html.haml

.comment-form
  = simple_form_for comment, :remote => true do |f|
    = f.input :body
    = f.input :commentable_id, :as => :hidden, :value => comment.commentable_id
    = f.input :commentable_type, :as => :hidden, :value => comment.commentable_type
    = f.button :submit, :class => "button", :disable_with => "Submitting…"

I will check out those polymorphic lessons too

having trouble getting the markdown to display it correctly but im following this tutorial

http://twocentstudios.com/blog/2012/11/15/simple-ajax-comments-with-rails/

Stuck on this error right now

Can't mass-assign protected attributes: user_id - (I read on stackoverflow not to add this to attr_accesible)