app/views/announcements/edit.html.erb
<div id="form">
<% if params[:layout]=="false" %>
<%= render partial: 'form', layout: 'layouts/modal_form_layout',
locals:{modal_title: "Edit announcement", submit_text: "Edit", submitting_text: "Applying changes..."} %>
<% else %>
<%= render partial: 'form',
locals:{submit_text: "Edit", submitting_text: "Applying changes..."} %>
<% end %>
</div>