app/views/demand/edit.html.erb
<%= render 'shared/user_header' %>
<h2>Edit demand on <%= @resource.name %></h2>
<%= render :partial => 'demand/demand_form',
:locals => {:method => :put,
:url => resource_demand_url(@resource, @demand),
:intensities => @intensities} %>
<br>
<%= link_to "Go Back", resource_demand_url(@resource, @demand) %>