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: rename_page.ml,v 1.4 2006/03/27 18:09:46 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.
30 open Cocanwiki_strings
31 open Cocanwiki_emailnotify
33 let run r (q : cgi) dbh hostid {hostname = hostname} user =
34 let page = q#param "page" in
37 if q#param_true "cancel" then (
38 q#redirect ("http://" ^ hostname ^ "/" ^ page);
42 let new_title = trim (q#param "new_title") in
44 (* New title mustn't be empty string. *)
45 if new_title = "" then (
46 error ~back_button:true ~title:"Empty title not allowed"
47 dbh hostid q "The new title cannot be empty.";
51 (* Get the old title. *)
52 let sth = dbh#prepare_cached "select title from pages
53 where hostid = ? and url = ?" in
54 sth#execute [Some hostid; Some page];
56 let old_title = sth#fetch1string () in
58 (* Generate URL for the new title. *)
60 if page = "index" then page
62 match Wikilib.generate_url_of_title dbh hostid new_title with
63 | Wikilib.GenURL_OK url | Wikilib.GenURL_Duplicate url -> url
64 | Wikilib.GenURL_TooShort | Wikilib.GenURL_BadURL ->
65 error ~title:"Bad title" ~back_button:true
67 ("The new title for the page isn't valid. " ^
68 "It may be too short or it may not contain " ^
69 "enough alphabet letters.");
72 if page = new_page then (
73 (* If it's the same as the old URL, then this is a simple title change. *)
74 let model = load_page dbh hostid ~url:page () in
75 let model = { model with pt = Title new_title } in
76 let url, _ = save_page dbh hostid ~user ~r model in
77 assert (url = new_page)
79 (* Not the same as the old URL, so set the old page to a redirect and
82 let old_model = load_page dbh hostid ~url:page () in
83 let new_model = new_page_with_title new_title in
84 let new_model = { new_model with description = old_model.description;
85 contents = old_model.contents } in
86 let old_model = { old_model with redirect = new_page } in
87 save_page dbh hostid ~user ~r old_model;
90 ignore (save_page dbh hostid ~user ~r new_model)
93 error ~title:"Page exists"
95 ("Another page with the same title exists. " ^
96 "If you tried to rename a page, then rename it back to the " ^
97 "original title, then you may see this error. This is a bug " ^
98 "which you should raise with the site administrator.");
105 (* Email notification. *)
106 let subject = "Page " ^ page ^ " has been renamed" in
109 "Old title: " ^ old_title ^ "\n" ^
110 "New title: " ^ new_title in
112 email_notify ~body ~subject ~user dbh hostid;
114 let buttons = [ ok_button ("/" ^ new_page) ] in
115 ok ~title:"Page renamed" ~buttons
116 dbh hostid q "That page was renamed."
119 register_script ~restrict:[CanEdit] run