Nested Resources

_commments_form.html.erb

<section class="comments">
	<h2>Post A Comment</h2>
		<%= form_for([@post, @comment]) do |comment| %>
			<%= comment.label :email %><br/>
			<%= comment.text_field :email %><br/>
		
			<%= comment.label :body %><br/>
			<%= comment.text_area :body, :size => "60x12" %><br/>
			
			<%= comment.submit "Shout out" %>
		<% end %>
</section>

comments_controller.rb

class CommentsController < ApplicationController
  
  before_filter :get_post
  
  def get_post
    @post = Post.find(params[:post_id])
  end
  
  def new
    @comment = @post.comments.build
  end
end

postsshow.html.erb

<%= link_to "Back", posts_path %>

<article class="post">
	<h2><%= @post.title %><h2>
	<h3><%= @post.created_at %></h3>
	
	<section class="">
		<iframe width="560" height="315" src="<%= @post.youtube %>" frameborder="0" allowfullscreen></iframe>
	</section>
	<p class=""><%= @post.content %></p>
	<hr>
	
	<% if user_signed_in? %>
		<%= link_to "Edit", edit_post_path(@post) %>
		<%= link_to "Destroy", @post, :confirm => "Are you sure", :method => :delete %>
	<% end %>
	
	<%= link_to "Back", posts_path %>
	
	<%= render "comments/comment_form" %>
	
	
</article>