(* COCANWIKI - a wiki written in Objective CAML.
* Written by Richard W.M. Jones <rich@merjis.com>.
* Copyright (C) 2004 Merjis Ltd.
- * $Id: search.ml,v 1.9 2006/03/27 18:09:46 rich Exp $
+ * $Id: search.ml,v 1.13 2006/12/06 09:46:57 rich Exp $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
let split_words = Pcre.regexp "\\W+"
let run r (q : cgi) dbh hostid host user =
- let template = get_template dbh hostid "search.html" in
+ let template = get_template r dbh hostid "search.html" in
template#set "canonical_hostname" host.canonical_hostname;
let keywords = Pcre.split ~rex:split_words query in
let keywords =
List.filter (fun s -> not (string_is_whitespace s)) keywords in
- let keywords = List.map String.lowercase keywords in
+ let keywords = List.map lowercase keywords in
(* Turn the keywords into a tsearch2 ts_query string. *)
let tsquery = String.concat "&" keywords in
(* Search the titles first. *)
- let sth =
- dbh#prepare_cached
- ("select id, url, url_deleted, title, last_modified_date,
- (lower (title) = lower (?)) as exact
- from pages
- where hostid = ? " ^
- (if not old_versions then "and url is not null " else "") ^ "
- and redirect is null
- and title_description_fti @@ to_tsquery (?, ?)
- order by exact desc, last_modified_date desc, title") in
- sth#execute [Some query;
- Some hostid; Some "default"; Some tsquery];
+ let rows =
+ if not old_versions then
+ PGSQL(dbh)
+ "select id, url, url_deleted, title, last_modified_date,
+ (lower (title) = lower ($query)) as exact
+ from pages
+ where hostid = $hostid
+ and url is not null
+ and redirect is null
+ and title_description_fti @@ to_tsquery ('default', $tsquery)
+ order by exact desc, last_modified_date desc, title"
+ else
+ PGSQL(dbh)
+ "select id, url, url_deleted, title, last_modified_date,
+ (lower (title) = lower ($query)) as exact
+ from pages
+ where hostid = $hostid
+ and redirect is null
+ and title_description_fti @@ to_tsquery ('default', $tsquery)
+ order by exact desc, last_modified_date desc, title" in
let titles =
- sth#map (function
- | [_; Some url; None; Some title;
- `Timestamp last_modified; _] ->
- url, title, None, last_modified
- | [Some version; None; Some url; Some title;
- `Timestamp last_modified; _] ->
- url, title, Some version, last_modified
- | _ -> assert false) in
+ List.map (function
+ | (_, Some url, None, title, last_modified, _) ->
+ url, title, None, last_modified
+ | (version, None, Some url, title, last_modified, _) ->
+ url, title, Some version, last_modified
+ | _ -> assert false) rows in
let have_titles = titles <> [] in
template#conditional "have_titles" have_titles;
(* Search the contents. *)
- let sth =
- dbh#prepare_cached
- ("select c.id, p.id, p.url, p.url_deleted, p.title,
- p.last_modified_date
- from contents c, pages p
- where c.pageid = p.id
- and p.hostid = ? " ^
- (if not old_versions then "and url is not null " else "") ^ "
- and p.redirect is null
- and c.content_fti @@ to_tsquery (?, ?)
- order by p.last_modified_date desc, p.title
- limit 50") in
- sth#execute [Some hostid; Some "default"; Some tsquery];
+ let rows =
+ if not old_versions then
+ PGSQL(dbh)
+ "select c.id, p.id, p.url, p.url_deleted, p.title,
+ p.last_modified_date
+ from contents c, pages p
+ where c.pageid = p.id
+ and p.hostid = $hostid
+ and url is not null
+ and p.redirect is null
+ and c.content_fti @@ to_tsquery ('default', $tsquery)
+ order by p.last_modified_date desc, p.title
+ limit 50"
+ else
+ PGSQL(dbh)
+ "select c.id, p.id, p.url, p.url_deleted, p.title,
+ p.last_modified_date
+ from contents c, pages p
+ where c.pageid = p.id
+ and p.hostid = $hostid
+ and p.redirect is null
+ and c.content_fti @@ to_tsquery ('default', $tsquery)
+ order by p.last_modified_date desc, p.title
+ limit 50" in
let contents =
- sth#map (function
- | [Some contentid; _; Some url; None;
- Some title; `Timestamp last_modified] ->
+ List.map (function
+ | (contentid, _, Some url, None, title, last_modified) ->
contentid, url, title, None, last_modified
- | [Some contentid; Some version; None; Some url;
- Some title; `Timestamp last_modified] ->
+ | (contentid, version, None, Some url, title,
+ last_modified) ->
contentid, url, title, Some version, last_modified
- | _ -> assert false) in
+ | _ -> assert false) rows in
let have_contents = contents <> [] in
template#conditional "have_contents" have_contents;
- (* Pull out the actual text which matched so we can generate a summary.*)
+ (* Pull out the actual text which matched so we can generate a summary.
+ * XXX tsearch2 can actually do better than this by emboldening
+ * the text which maps.
+ *)
let content_map =
if contents = [] then []
else (
- let qs = Dbi.placeholders (List.length contents) in
- let sth =
- dbh#prepare_cached
- ("select id, sectionname, content from contents
- where id in " ^ qs) in
- sth#execute
- (List.map (fun (contentid, _,_,_,_) -> Some contentid) contents);
- sth#map (function
- | [ Some id; None; Some content ] ->
- id, (None, content)
- | [ Some id; Some sectionname; Some content ] ->
- id, (Some sectionname, content)
- | _ -> assert false)
+ let rows =
+ let contentids =
+ List.map (fun (contentid, _,_,_,_) -> contentid) contents in
+ PGSQL(dbh)
+ "select id, sectionname, content from contents
+ where id in $@contentids" in
+ List.map (fun (id, sectionname, content) ->
+ id, (sectionname, content)) rows
) in
(* Generate the final tables. *)
List.map (fun (url, title, version, last_modified) ->
let have_version, version =
match version with
- None -> false, 0
+ None -> false, 0l
| Some version -> true, version in
let last_modified = printable_date last_modified in
[ "url", Template.VarString url;
(fun (contentid, url, title, version, last_modified) ->
let have_version, version =
match version with
- None -> false, 0
+ None -> false, 0l
| Some version -> true, version in
let sectionname, content = List.assoc contentid content_map in
let have_sectionname, sectionname =
let content =
truncate 160
(Wikilib.text_of_xhtml
- (Wikilib.xhtml_of_content dbh hostid content)) in
+ (Wikilib.xhtml_of_content r dbh hostid content)) in
let linkname = linkname_of_sectionname sectionname in
let last_modified = printable_date last_modified in
[ "url", Template.VarString url;