app/views/announcement/show_announcements.haml
%h1 All Announcements
= form_tag search_announcements_path, {method: :post, class: 'form-inline'} do
.form-group
= label_tag :search, "Search"
= text_field_tag 'search', nil, class: 'form-control'
.form-group
= submit_tag 'Submit', {class: 'btn btn-default'}
%br
= render :partial => 'announcement_table'
<br/> <br/>