Editing announcement

<%= error_messages_for :announcement %> <% form_for(@announcement) do |f| %>

Body
<%= f.text_area :body %>

Author
<%= f.text_field :author %>

Published
<%= f.check_box :published %>

<%= f.submit "Update" %>

<% end %> <%= link_to 'Show', @announcement %> | <%= link_to 'Back', announcements_path %>