1 (* COCANWIKI - a wiki written in Objective CAML.
2 * Written by Richard W.M. Jones <rich@merjis.com>.
3 * Copyright (C) 2004 Merjis Ltd.
4 * $Id: orphans.ml,v 1.5 2006/03/28 16:24:07 rich Exp $
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; see the file COPYING. If not, write to
18 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 * Boston, MA 02111-1307, USA.
28 open Cocanwiki_template
30 let run r (q : cgi) dbh hostid _ _ =
31 let template = get_template dbh hostid "orphans.html" in
33 (* Start with the front page, the contents of the site menu and the
34 * special "copyright" page.
37 PGSQL(dbh) "select url from sitemenu where hostid = $hostid" in
38 let start_pages = "index" :: "copyright" :: start_pages in
40 (* The find the list of orphans, we first construct the list of
41 * pages reachable from the front page. Once this list has been
42 * constructed, any page not on the list is an orphan or part of
45 * XXX This does not properly handle redirects XXX
47 let rec loop pages border =
51 * pages is a list of distinct pages
52 * border is a list of distinct pages
53 * pages @ border is a list of distinct pages
55 let pages' = pages @ border in
57 PGSQL(dbh) "select distinct to_url from links
58 where hostid = $hostid and from_url in $@border
59 and to_url not in $@pages'" in
60 if border' = [] then pages'
61 else loop pages' border'
63 let non_orphans = loop [] start_pages in
65 (* Get the actual orphans, which are pages which do not appear in this list*)
67 "select url, title from pages
68 where hostid = $hostid
69 and url is not null and redirect is null
70 and url not in $@non_orphans
74 List.map (fun (page, title) ->
75 let page = Option.get page in
76 [ "page", Template.VarString page;
77 "title", Template.VarString title ]) rows in
79 template#table "pages" table;
84 register_script ~restrict:[CanView] run