app/views/admin/blog_posts/edit.html.erb
<div class="row">
<div class="span12">
<div class="page-header">
<h1><%= @title = 'Edit blog post' %></h1>
</div>
</div>
</div>
<%= render partial: 'intro', locals: { blog_post: @blog_post } %>
<%= form_for [:admin, @blog_post], class: 'form form-horizontal' do |f| %>
<%= render partial: 'form', locals: { f: f } %>
<div class="form-actions">
<%= submit_tag 'Save', class: 'btn btn-success' %>
</div>
<% end %>