Simplify uses of polymorphic admin nested routes

app/views/admin/progress_bars/_form.html.erb

@@ -1,6 +1,6 @@
 <%= render "shared/globalize_locales", resource: @progress_bar %>
 
-<%= translatable_form_for [:admin, *resource_hierarchy_for(@progress_bar)] do |f| %>
+<%= translatable_form_for @progress_bar, url: admin_polymorphic_path(@progress_bar) do |f| %>
 
   <div class="row">
     <div class="small-12 medium-6 column">

app/views/admin/progress_bars/_progress_bars.html.erb

@@ -1,8 +1,8 @@
 <h2 class="inline-block"><%= t("admin.progress_bars.index.title") %></h2>
 
 <%= link_to t("admin.progress_bars.index.new_progress_bar"),
-            polymorphic_path(
-              [:admin, *resource_hierarchy_for(ProgressBar.new(progressable: progressable))],
+            admin_polymorphic_path(
+              ProgressBar.new(progressable: progressable),
               action: :new
             ),
             class: "button float-right" %>
@@ -37,12 +37,11 @@
           </td>
           <td>
             <%= link_to t("admin.actions.edit"),
-                        polymorphic_path([:admin, *resource_hierarchy_for(progress_bar)],
-                                         action: :edit),
+                        admin_polymorphic_path(progress_bar, action: :edit),
                         class: "button hollow" %>
 
             <%= link_to t("admin.actions.delete"),
-                        polymorphic_path([:admin, *resource_hierarchy_for(progress_bar)]),
+                        admin_polymorphic_path(progress_bar),
                         method: :delete,
                         class: "button hollow alert" %>
           </td>

app/views/admin/progress_bars/index.html.erb

@@ -2,7 +2,7 @@
   <%= "#{t("admin.header.title")} - #{t("admin.progress_bars.index.title")}" %>
 <% end %>
 
-<%= back_link_to polymorphic_path([:admin, *resource_hierarchy_for(@progressable)]) %>
+<%= back_link_to admin_polymorphic_path(@progressable) %>
 
 <div class="clear"></div>