- fix issue when picture_url_style = file (sql query like)

git-svn-id: http://piwigo.org/svn/branches/branch-1_7@2504 68402e56-0260-453c-a942-63ccdbb3a9ee

picture.php

@@ -56,7 +56,9 @@ SELECT id, file
   else
   {// url given by file name
     assert( !empty($page['image_file']) );
-    $query .= 'file LIKE "' . $page['image_file'] . '.%" ESCAPE "|" LIMIT 1';
+    $query .= 'file LIKE "' .
+      str_replace(array('_','%'), array('/_','/%'), $page['image_file'] ).
+      '.%" ESCAPE "/" LIMIT 1';
   }
   if ( ! ( $row = mysql_fetch_array(pwg_query($query)) ) )
   {// element does not exist