Move accessible_by check to controller

app/controllers/admin/imports_controller.rb

@@ -95,5 +95,9 @@ module Admin
         ]
       )
     end
+
+    def before_filtering(relation)
+      relation.accessible_by(current_ability)
+    end
   end
 end

app/views/admin/imports/index/_table.html.erb

@@ -7,7 +7,7 @@
       </tr>
     </thead>
     <tbody>
-      <% @imports.accessible_by(current_ability).each do |import| %>
+      <% @imports.each do |import| %>
         <%= table_row_link_to admin_import_path(import) do %>
           <td><%= import.id %></td>
           <td><strong><%= import.display_name %></strong></td>