1 <? rcs_id('$Id: wiki_mysql.php3,v 1.12 2000-07-07 19:53:50 dairiki Exp $');
8 RetrievePage($dbi, $pagename)
9 InsertPage($dbi, $pagename, $pagehash)
10 IsWikiPage($dbi, $pagename)
11 InitTitleSearch($dbi, $search)
12 TitleSearchNextMatch($dbi, &$pos)
13 InitFullSearch($dbi, $search)
14 FullSearchNextMatch($dbi, &$pos)
15 IncreaseHitCount($dbi, $pagename)
16 GetHitCount($dbi, $pagename)
17 InitMostPopular($dbi, $limit)
18 MostPopularNextMatch($dbi, $res)
19 GetAllWikiPageNames($dbi)
24 // open a database and return the handle
25 // ignores MAX_DBM_ATTEMPTS
27 function OpenDataBase($dbname) {
28 global $mysql_server, $mysql_user, $mysql_pwd, $mysql_db;
30 if (!($dbc = mysql_pconnect($mysql_server, $mysql_user, $mysql_pwd))) {
31 echo "Cannot establish connection to database, giving up.";
32 echo "MySQL error: ", mysql_error(), "<br>\n";
35 if (!mysql_select_db($mysql_db, $dbc)) {
36 echo "Cannot open database, giving up.";
37 echo "MySQL error: ", mysql_error(), "<br>\n";
42 $dbi['table'] = $dbname;
47 function CloseDataBase($dbi) {
49 // mysql connections are established as persistant
50 // they cannot be closed through mysql_close()
54 function MakeDBHash($pagename, $pagehash)
56 $pagehash["pagename"] = addslashes($pagename);
57 if (!isset($pagehash["flags"]))
58 $pagehash["flags"] = 0;
59 $pagehash["author"] = addslashes($pagehash["author"]);
60 $pagehash["content"] = implode("\n", $pagehash["content"]);
61 $pagehash["content"] = addslashes($pagehash["content"]);
62 $pagehash["refs"] = serialize($pagehash["refs"]);
67 function MakePageHash($dbhash)
69 // unserialize/explode content
70 $dbhash['refs'] = unserialize($dbhash['refs']);
71 $dbhash['content'] = explode("\n", $dbhash['content']);
76 // Return hash of page + attributes or default
77 function RetrievePage($dbi, $pagename) {
78 $pagename = addslashes($pagename);
79 if ($res = mysql_query("select * from $dbi[table] where pagename='$pagename'", $dbi['dbc'])) {
80 if ($dbhash = mysql_fetch_array($res)) {
81 return MakePageHash($dbhash);
88 // Either insert or replace a key/value (a page)
89 function InsertPage($dbi, $pagename, $pagehash)
91 $pagehash = MakeDBHash($pagename, $pagehash);
93 $COLUMNS = "author, content, created, flags, " .
94 "lastmodified, pagename, refs, version";
96 $VALUES = "'$pagehash[author]', '$pagehash[content]', " .
97 "$pagehash[created], $pagehash[flags], " .
98 "$pagehash[lastmodified], '$pagehash[pagename]', " .
99 "'$pagehash[refs]', $pagehash[version]";
102 if (!mysql_query("replace into $dbi[table] ($COLUMNS) values ($VALUES)",
104 echo "error writing page '$pagename' ";
111 function IsWikiPage($dbi, $pagename) {
112 $pagename = addslashes($pagename);
113 if ($res = mysql_query("select count(*) from $dbi[table] where pagename='$pagename'", $dbi['dbc'])) {
114 return(mysql_result($res, 0));
119 function IncreaseHitCount($dbi, $pagename)
121 $res = mysql_query("update hitcount set hits=hits+1 where pagename='$pagename'", $dbi['dbc']);
123 if (!mysql_affected_rows($dbi['dbc'])) {
124 $res = mysql_query("insert into hitcount (pagename, hits) values ('$pagename', 1)", $dbi['dbc']);
130 function GetHitCount($dbi, $pagename)
132 $res = mysql_query("select hits from hitcount where pagename='$pagename'", $dbi['dbc']);
133 if (mysql_num_rows($res))
134 $hits = mysql_result($res, 0);
142 // setup for title-search
143 function InitTitleSearch($dbi, $search) {
144 $search = addslashes($search);
145 $res = mysql_query("select pagename from $dbi[table] where pagename like '%$search%' order by pagename", $dbi["dbc"]);
151 // iterating through database
152 function TitleSearchNextMatch($dbi, $res) {
153 if($o = mysql_fetch_object($res)) {
162 // setup for full-text search
163 function InitFullSearch($dbi, $search) {
164 $search = addslashes($search);
165 $res = mysql_query("select * from $dbi[table] where content like '%$search%'", $dbi["dbc"]);
170 // iterating through database
171 function FullSearchNextMatch($dbi, $res) {
172 if($hash = mysql_fetch_array($res)) {
173 return MakePageHash($hash);
180 function InitMostPopular($dbi, $limit) {
181 $res = mysql_query("select * from hitcount order by hits desc, pagename limit $limit");
186 function MostPopularNextMatch($dbi, $res) {
187 if ($hits = mysql_fetch_array($res))
193 function GetAllWikiPageNames($dbi) {
194 $res = mysql_query("select pagename from wiki");
195 $rows = mysql_num_rows($res);
196 for ($i = 0; $i < $rows; $i++) {
197 $pages[$i] = mysql_result($res, $i);