Live preview in rails 2.0

rubyonrails-talk
1

I'am trying to set a live preview for my rails app I using recipe 3 from rails recipies. It's a recipe from rails 1.0 in 2.0 i get no live preview

in my testapp i have the following code

:controller

def new   @Post = Post.new end

def preview render :layout => false end

:model class Post < ActiveRecord::Base   attr_accessor :title, :body end

view new.rhtml

<html> <head>   <%= javascript_include_tag "prototype"%>   </head>   <body>

<% form_for :post, @post, :url=> {:action => 'create', :id => "entry-form" } do |f| %>

<%= f.text_field :title %></p>

  <%= f.text_area :body %> <%= submit_tag "Post" %> <% end %>

<%= observe_form "post-form", :update => "live_preview", :complete => "Element.show('live-preview')", :url => { :action => "preview" } %>

<div id="live-preview" style="display: none; border: 1px solid">

</div>

</body> </html>

:preview.rhtml

<%= textilize params[:page][:body]%>

I got no preview i got nothing. The only difference in my code and the book i have is into the new.rhtml because start_form_tag does not longer exists in 2.0

2

For now the log gets all the new information from the preview. But i got nothing on screen only a black line

This is into my log

Processing HomeController#preview (for 127.0.0.1 at 2008-02-01 13:38:28) [POST]   Session ID: BAh7BzoMY3NyZl9pZCIlZDQ0ZGRlMmEwOTIwMzA2OTA3M2UyYTQ2ZWQ0NTU3%0ANTUiCmZsYXNoSUM6J0FjdGlvbkNvbnRyb2xsZXI6OkZsYXNoOjpGbGFzaEhh%0Ac2h7AAY6CkB1c2VkewA%3D--f5e9513b61438c135c515f4e91ff56f0596d1691   Parameters: {"commit"=>"Post", "post"=>{"title"=>"", "body"=>"fdfdffddf"}, "authenticity_token"=>"90dfa19958c89b163d86e29bebe88b1bf56fc90a", "action"=>"preview", "controller"=>"home"} Rendering home/preview   Post Columns (0.003355) SHOW FIELDS FROM `posts` Completed in 0.01117 (89 reqs/sec) | Rendering: 0.00172 (15%) | DB: 0.00336 (30%) | 200 OK [http://0.0.0.0/home/preview\]

In my view i have this

<%= observe_form "post-form", :frequency => 1, :update => "live_preview", :complete => "Element.show('live-preview')", :url => { :action => "preview" } %>

<div id="live-preview" style="display: none; border: 1px solid"></div>

but the div gives no result of the preview method