gistfile1.txt

Index: templates/photo_view.html
===================================================================
--- templates/photo_view.html   (revision 11)
+++ templates/photo_view.html   (working copy)
@@ -20,7 +20,7 @@
         <a href="{{ photo.get_previous_by_date.get_url }}" title="(click for previous image)">
     {% endif %}
     <img id="image" src="{{ photo.get_file_url }}" alt="" />
-    {% if photo.get_previous_by_date.get_absolute_url %}
+    {% if photo.get_previous_by_date %}
         </a>
     {% endif %}
     <span id='properties' style="display: none;"><table>