FIX: Summary, add legacy support for Page.ss

src/Extensions/SiteTreeExtension.php

@@ -103,6 +103,10 @@ class SiteTreeExtension extends DataExtension
             return $this->_cached['summary' . $wordsToDisplay];
         }
 
+        if(!method_exists($obj, 'ElementalArea')) {
+            return;
+        }
+
         $element = ElementContent::get()->filter([
             'ParentID' => $obj->ElementalArea()->ID,
             'HTML:not' => [null],

templates/Page.ss

@@ -16,8 +16,8 @@
             <% include Header %>
         </header>
 
-        <div id="MainContent" class="page-content" data-ajax-region="LayoutAjax">
-            <% if $isFormResponse %>
+        <div id="MainContent" class="page-content" data-ajax-region="LayoutAjax"<% if $isLegacy %> data-legacy="true"<% end_if %>>
+            <% if $isFormResponse || $isLegacy %>
                 <%-- Legacy code compatibility --%>
                 <% include MainContent Layout=$Layout %>
             <% end_if %>