--- clipper.module_old	2006-03-31 06:40:03.815402608 -0800
+++ clipper.module	2006-03-31 06:42:08.830397440 -0800
@@ -415,3 +415,29 @@
     exit();
   }
 }
+
+
+/**
+ * Views interfaces
+ * @ingroup signup_views_api
+ */
+function clipper_views_tables() {
+  $tables['relations'] = array(
+    "filters" => array(
+      "left_id" => array(
+        "name" => "Clipper: Node is a parent",
+        "operator" => array('is a'),
+        "list" => array("parent"),
+        "handler" => "views_handler_filter_children",
+        "value-type" => "array",
+        "help" => t("This filter allows you to only show nodes that are clipper parents")
+      ),
+    ),
+  );
+  return $tables;
+}
+
+function views_handler_filter_children($op, $filter, $filterinfo, &$query) {
+  $query->ensure_table("relations");
+  $query->add_where("relations.left_id = node.nid");
+}