Only display error detail when there are errors.

apachedex/__init__.py

@@ -214,15 +214,17 @@ class GenericSiteStats(object):
     append('</tr>')
     def hitTd(hit, status):
       return '<td class="%s">%s</td>' % (getClassForStatusHit(hit, status), hit)
+    has_errors = False
     for status, data_dict in sorted(filtered_status.iteritems(),
         key=ITEMGETTER0):
+      has_errors |= statusIsError(status)
       append('<tr><th>%s</th>' % status)
       append(hitTd(sum(data_dict.itervalues()), status))
       for date in column_list:
         append(hitTd(data_dict[date], status))
       append('</tr>')
     append('</table>')
-    if self.error_detail:
+    if self.error_detail and has_errors:
       def getHitForUrl(referer_counter):
         return sum(referer_counter.itervalues())
       filtered_status_url = defaultdict(partial(defaultdict, dict))