Editing post

<%= error_messages_for :post %> <% form_for(:post, :url => post_path(@post), :html => { :method => :put }) do |f| %>

Title
<%= f.text_field :title %>

Body
<%= f.text_area :body %>

<%= submit_tag "Update" %>

<% end %> <%= link_to 'Show', post_path(@post) %> | <%= link_to 'Back', posts_path %>