Does this rails code belong in Application Controller? - ruby-on-rails

Question

I have some code (that is working), but I just want to make sure I am putting it in the right place per rails conventions/best practices. The purpose of the code, is to generate a set of subheading navigation links if '#facility' is defined (which could be done in one of several controllers). Right now, I have the following bits of code spread out as identified below.
My issue: this doesn't feel right, particularly the bit of logic at the beginning of the html template. I will also want to define a few other similar helpers to define these subhead links based on different models. Should this logic (of setting #subhead_links) be in the application controller? As a method in each model (so I would set #subhead_links = #facility.subhead_links)?
I've looked some for answers, but this type of philosophical question isn't as readily google-able as an error code.
in application helper
# build subhead
def subhead_links(facility)
links = [
{ :label => "Configure Facility", :path => facility_path(facility) },
{ :label => "Waitlists", :path => waitlist_tiers_path(:id => facility.id) },
{ :label => "Applications", :path => sponsors_path(:id => facility.id) }
return links
end
in a partial included in application.html.erb template
<% if #facility %>
<% #subhead_links = subhead_links(#facility) %>
<% end %>
<% if #subhead_links %>
<nav class="subnav">
<ul>
<% #subhead_links.each do |link| %>
<li><%= link_to link[:label], link[:path] %></li>
<% end %>
</ul>
</nav>
<% end %>
in various other controllers...
#facility = Facility.find(params[:id])

Answer 1

I never rely on instance variables in partials and try to put as much logic as possible in helpers.
Here this would result in the following:
application_layout:
<%= render_subhead_links(#facility) %>
application_helper:
def render_subhead_links(facility)
if facility
links = [
{ :label => "Configure Facility", :path => facility_path(facility) },
{ :label => "Waitlists", :path => waitlist_tiers_path(:id => facility.id) },
{ :label => "Applications", :path => sponsors_path(:id => facility.id) }
render :partial_name, :links => links
end
end
partial:
<nav class="subnav">
<ul>
<% links.each do |link| %>
<li><%= link_to link[:label], link[:path] %></li>
<% end %>
</ul>
</nav>