continue with the posts

app/controllers/posts_controller.rb

@@ -1,9 +1,17 @@
 class PostsController < ApplicationController
+  before_filter :get_post, :only => [:show, :edit, :update]
+
+  def show
+  end
 
   def new
     @post = Post.new
   end
 
+  def edit
+    render :new
+  end
+
   def create
     @post = Post.new params[:post]
 
@@ -13,4 +21,18 @@ def create
       render :new
     end
   end
+
+  def update
+    if @post.update_attributes params[:post]
+      redirect_to @post
+    else
+      render :new
+    end
+  end
+
+
+  private
+  def get_post
+    @post = Post.find params[:id]
+  end
 end

app/views/main/index.html.erb

@@ -1,5 +1,5 @@
 <ul>
   <% @posts.each do |p| %>
-    <li><%= p.title %></li>
+    <li><%= link_to p.title, p %></li>
   <% end %>
 </ul>

app/views/posts/show.html.erb

@@ -0,0 +1,2 @@
+<h1><%= @post.title %></h1>
+<p><%= @post.content %></p>