edit

src/Database.php

@@ -173,6 +173,11 @@ class Database
             if ($oper) {
                 $param .= '&' . http_build_query($oper);
             }
+
+            $top = Dever::preInput('top_');
+            if ($top) {
+                $param .= '&' . http_build_query($top);
+            }
         }
 
         if ($key == 'search' && $search_limit = Dever::input('search_limit')) {
@@ -1196,6 +1201,11 @@ class Database
             }
         }
 
+        $top = Dever::input('top_parent');
+        if ($top) {
+            $result .= '<input type="hidden" value="'.$top.'" name="top_parent" id="top_parent" />';
+        }
+
         return $result;
     }