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 1.2 2004/11/22 11:11:52 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 : Dbi.connection) 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 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 [`Int hostid; `String 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
66 q ("The new title for the page isn't valid. " ^
67 "It may be too short or it may not contain " ^
68 "enough alphabet letters.");
71 if page = new_page then (
72 (* If it's the same as the old URL, then this is a simple title change. *)
73 let model = load_page dbh hostid ~url:page () in
74 let model = { model with pt = Title new_title } in
75 let url, _ = save_page dbh hostid ~user ~r model in
76 assert (url = new_page)
78 (* Not the same as the old URL, so set the old page to a redirect and
81 let old_model = load_page dbh hostid ~url:page () in
82 let new_model = new_page_with_title new_title in
83 let new_model = { new_model with description = old_model.description;
84 contents = old_model.contents } in
85 let old_model = { old_model with redirect = new_page } in
86 save_page dbh hostid ~user ~r old_model;
89 ignore (save_page dbh hostid ~user ~r new_model)
92 error ~title:"Page exists"
93 q ("Another page with the same title exists. " ^
94 "If you tried to rename a page, then rename it back to the " ^
95 "original title, then you may see this error. This is a bug " ^
96 "which you should raise with the site administrator.");
103 (* Email notification. *)
104 let subject = "Page " ^ page ^ " has been renamed" in
107 "Old title: " ^ old_title ^ "\n" ^
108 "New title: " ^ new_title in
110 email_notify ~body ~subject ~user dbh hostid;
112 let buttons = [ ok_button ("/" ^ new_page) ] in
113 ok ~title:"Page renamed" ~buttons
114 q "That page was renamed."
117 register_script ~restrict:[CanEdit] run