Index: filefield.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/filefield/filefield.module,v
retrieving revision 1.185
diff -u -r1.185 filefield.module
--- filefield.module	30 Mar 2009 01:19:34 -0000	1.185
+++ filefield.module	30 Mar 2009 01:38:20 -0000
@@ -786,3 +786,26 @@
   }
   return $references;
 }
+
+/**
+ * Get a list of node IDs that reference a file.
+ *
+ * @param $file
+ *   The file object for which to find references.
+ * @param $field
+ *   A CCK field array.
+ * @return
+ *   An array of IDs grouped by NID: array([nid] => array([vid1], [vid2])).
+ */
+function filefield_get_file_references($file, $field) {
+  $references = array();
+
+  $db_info = content_database_info($field);
+  $sql = 'SELECT nid, vid FROM {'. $db_info['table'] .'} WHERE '. $db_info['columns']['fid']['column'] .' = %d';
+  $result = db_query($sql, $file->fid);
+  while ($row = db_fetch_object($result)) {
+    $references[$row->nid][] = $row->vid;
+  }
+
+  return $references;
+}