Rails tries to execute Update action instead of the one I want - ruby-on-rails

Question

I want to develop an ajax functionality for commenting posts in my website.
I've done this before, but I don't know why I'm having problems this time. Rails executes Update action from posts_controller, instead of the action called "save_comment".
This is the relevant line of my routes file:
map.connect "/posts/save_comment", :controller => 'posts', :action => 'save_comment'
This is the view's code:
<%= javascript_include_tag "prototype" %>
<% if logged_in? %>
<% remote_form_for :post, PostComment.new, :url => {:action => 'save_comment',:post_id=>inside_list.id}, :html => { :method => :put} do |f| %>
<p>
<%= f.label 'Comment' %><br />
<%= f.text_area :comment, :style=>'height:100px;' %>
</p>
<p>
<%= f.submit 'Publish' %>
</p>
<% end %>
<% end %>
The save_comment action looks like this:
def save_comment
comment = PostComment.new
comment.user_id = current_user.id
comment.post_id = params[:post_id]
comment.comment = params[:post][:comment]
comment.save
post = Post.find(params[:post_id])
render :update do |page|
page.replace_html 'dComments', :partial => 'post_comments/inside_list', :object => post
end
end
BTW: Is there a neater way for doing this?

Answer 1

You need to define the route method. Also you're not defining the post parameter.
map.connect "/posts/:post_id/save_comment", :controller => 'posts', :action => 'save_comment', :method => :post
Following convention you should make the route method => :post, rather than :put. Put requests are generally used for updating existing records, post for creating new. Also how about named routes?
#routes.rb
map.save_comment "/posts/:post_id/save_comment", :controller => 'posts', :action => 'save_comment', :method => :post
#view
<% remote_form_for :post, PostComment.new, :url => save_comment_path(inside_list.id) do |f| %>
Also, guessing here but do you have this defined:
map.resources :posts
if you do then add the new method
map.resources :posts, :member => {:save_comment => :post}