redirect to the appropriate page after deleting an admin set.

.rubocop_fixme.yml

@@ -5,6 +5,7 @@ Security/MarshalLoad:
 Metrics/ClassLength:
   Exclude:
     - 'app/controllers/hyrax/dashboard/collections_controller.rb'
+    - 'app/controllers/hyrax/admin/admin_sets_controller.rb'
     - 'app/controllers/hyrax/file_sets_controller.rb'
     - 'app/forms/hyrax/forms/permission_template_form.rb'
     - 'app/presenters/hyrax/work_show_presenter.rb'

app/controllers/hyrax/admin/admin_sets_controller.rb

@@ -71,7 +71,7 @@ def create
 
     def destroy
       if @admin_set.destroy
-        redirect_to hyrax.admin_admin_sets_path, notice: t(:'hyrax.admin.admin_sets.delete.notification')
+        after_delete_success
       else
         redirect_to hyrax.admin_admin_set_path(@admin_set), alert: @admin_set.errors.full_messages.to_sentence
       end
@@ -140,5 +140,15 @@ def admin_set_params
       def repository_class
         blacklight_config.repository_class
       end
+
+      def after_delete_success
+        if request.referer.include? "my/collections"
+          redirect_to hyrax.my_collections_path, notice: t(:'hyrax.admin.admin_sets.delete.notification')
+        elsif request.referer.include? "collections"
+          redirect_to hyrax.dashboard_collections_path, notice: t(:'hyrax.admin.admin_sets.delete.notification')
+        else
+          redirect_to hyrax.my_collections_path, notice: t(:'hyrax.admin.admin_sets.delete.notification')
+        end
+      end
   end
 end

app/views/hyrax/my/collections/index.html.erb

@@ -15,7 +15,7 @@
 <div class="collections-wrapper">
   <section class="tabs-row">
     <!-- Page tabs -->
-    <nav><%= render 'tabs' if current_page?(hyrax.dashboard_collections_path(locale: nil)) || @managed_collection_count > 0 %></nav>
+    <nav><%= render 'tabs' if @managed_collection_count > 0 %></nav>
 
     <% if can?(:create_any, Collection) && @collection_type_list_presenter.any? %>
       <% if @collection_type_list_presenter.many? %>

spec/controllers/hyrax/admin/admin_sets_controller_spec.rb

@@ -148,9 +148,35 @@
 
       context "with empty admin set" do
         it "deletes the admin set" do
+          controller.request.set_header("HTTP_REFERER", "/admin/admin_sets")
           delete :destroy, params: { id: admin_set }
+
+          expect(response).to have_http_status(:found)
+          expect(response).to redirect_to(my_collections_path)
+          expect(flash[:notice]).to eq "Administrative set successfully deleted"
+          expect(AdminSet.exists?(admin_set.id)).to be false
+        end
+      end
+
+      context "with empty admin set and referrer from the my/collections dashboard" do
+        it "deletes the admin set" do
+          controller.request.set_header("HTTP_REFERER", "/my/collections")
+          delete :destroy, params: { id: admin_set }
+
+          expect(response).to have_http_status(:found)
+          expect(response).to redirect_to(my_collections_path)
+          expect(flash[:notice]).to eq "Administrative set successfully deleted"
+          expect(AdminSet.exists?(admin_set.id)).to be false
+        end
+      end
+
+      context "with empty admin set and referrer from the /collections dashboard" do
+        it "deletes the admin set" do
+          controller.request.set_header("HTTP_REFERER", "/collections")
+          delete :destroy, params: { id: admin_set }
+
           expect(response).to have_http_status(:found)
-          expect(response).to redirect_to(admin_admin_sets_path)
+          expect(response).to redirect_to(dashboard_collections_path)
           expect(flash[:notice]).to eq "Administrative set successfully deleted"
           expect(AdminSet.exists?(admin_set.id)).to be false
         end