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<?php
////////////////////////////////////////////////////////////////////////////////
//BOCA Online Contest Administrator
// Copyright (C) 2003-2012 by BOCA Development Team (bocasystem@gmail.com)
//
// 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
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
////////////////////////////////////////////////////////////////////////////////
// Last modified 05/aug/2012 by cassio@ime.usp.br
function DBDropLangTable() {
$c = DBConnect();
$r = DBExec($c, "drop table \"langtable\"", "DBDropLangTable(drop table)");
}
function DBCreateLangTable() {
$c = DBConnect();
$conf = globalconf();
if($conf["dbuser"]=="") $conf["dbuser"]="bocauser";
$r = DBExec($c, "
CREATE TABLE \"langtable\" (
\"contestnumber\" int4 NOT NULL,
\"langnumber\" int4 NOT NULL,
\"langname\" varchar(50) NOT NULL,
\"langextension\" varchar(20) NOT NULL,
\"updatetime\" int4 DEFAULT EXTRACT(EPOCH FROM now()) NOT NULL, -- (indica a ultima atualizacao no registro)
CONSTRAINT \"lang_pkey\" PRIMARY KEY (\"contestnumber\", \"langnumber\"),
CONSTRAINT \"contest_fk\" FOREIGN KEY (\"contestnumber\") REFERENCES \"contesttable\" (\"contestnumber\")
ON DELETE CASCADE ON UPDATE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE
)", "DBCreateLangTable(create table)");
$r = DBExec($c, "REVOKE ALL ON \"langtable\" FROM PUBLIC", "DBCreateLangTable(revoke public)");
$r = DBExec($c, "GRANT ALL ON \"langtable\" TO \"".$conf["dbuser"]."\"", "DBCreateLangTable(grant bocauser)");
$r = DBExec($c, "CREATE INDEX \"lang_index\" ON \"langtable\" USING btree ".
"(\"contestnumber\" int4_ops, \"langnumber\" int4_ops)", "DBCreateLangTable(create lang_index)");
$r = DBExec($c, "CREATE INDEX \"lang_index2\" ON \"langtable\" USING btree ".
"(\"contestnumber\" int4_ops, \"langname\" varchar_ops)", "DBCreateLangTable(create lang_index2)");
}
//recebe o numero do contest
//devolve um array, onde cada linha tem os atributos number (numero da linguagem) e name (nome da linguagem)
function DBGetLanguages($contest) {
$c = DBConnect();
$r = DBExec($c, "select distinct l.langnumber as number, l.langname as name, l.langextension as extension from langtable as l " .
"where l.contestnumber=$contest and l.langname !~ '(DEL)' order by l.langnumber", "DBGetLanguages(get lang)");
$n = DBnlines($r);
$a = array();
for ($i=0;$i<$n;$i++)
$a[$i] = DBRow($r,$i);
return $a;
}
//recebe o numero do contest e o numero da resposta e remove-a caso seu tipo nao seja fake
function DBDeleteLanguage($contestnumber, $param, $c=null) {
$ac=array('number');
foreach($ac as $key) {
if(!isset($param[$key])) {
MSGError("DBDeleteLanguage param error: $key not found");
return false;
}
$$key = sanitizeText($param[$key]);
}
$cw = false;
if($c == null) {
$cw = true;
$c = DBConnect();
DBExec($c, "begin work", "DBDeleteLanguage(transaction)");
}
$sql = "select * from langtable where langnumber=$number and contestnumber=$contestnumber";
$r = DBExec($c, $sql . " for update", "DBDeleteLanguage(get lang for update)");
if(DBnlines($r)>0) {
$a = DBRow($r,0);
$r = DBExec($c, "update langtable set langname='".$a["langname"] ."(DEL)', updatetime=".time().
" where contestnumber=$contestnumber and langnumber=$number ".
"", "DBDeleteLanguage(update)");
$r = DBExec($c,"select runnumber as number, runsitenumber as site from runtable where contestnumber=$contestnumber and runlangnumber=$number for update");
$n = DBnlines($r);
for ($i=0;$i<$n;$i++) {
$a = DBRow($r,$i);
DBRunDelete($a["number"],$a["site"],$contestnumber,$_SESSION["usertable"]["usernumber"],$_SESSION["usertable"]["usersitenumber"]);
}
}
if($cw) DBExec($c, "commit", "DBDeleteLanguage(commit)");
LOGLevel("Language $number deleted (user=".$_SESSION["usertable"]["username"].
"/".$_SESSION["usertable"]["usersitenumber"].")", 2);
return true;
}
function DBNewLanguage($contestnumber, $param, $c=null) {
if(isset($param["action"]) && $param["action"]=="delete") {
return DBDeleteLanguage($contestnumber, $param, $c);
}
$ac=array('number','name');
$ac1=array('updatetime','extension');
$type['number']=1;
$type['updatetime']=1;
$extension='';
foreach($ac as $key) {
if(!isset($param[$key]) || $param[$key]=="") {
MSGError("DBNewLanguage param error: $key not found");
return false;
}
if(isset($type[$key]) && !is_numeric($param[$key])) {
MSGError("DBNewLanguage param error: $key is not numeric");
return false;
}
$$key = sanitizeText($param[$key]);
}
$updatetime=-1;
foreach($ac1 as $key) {
if(isset($param[$key])) {
$$key = sanitizeText($param[$key]);
if(isset($type[$key]) && !is_numeric($param[$key])) {
MSGError("DBNewLanguage param error: $key is not numeric");
return false;
}
}
}
$t = time();
if($updatetime <= 0)
$updatetime=$t;
$cw = false;
if($c == null) {
$cw = true;
$c = DBConnect();
DBExec($c, "begin work", "DBNewLanguage(transaction)");
}
$sql2 = "select * from langtable where contestnumber=$contestnumber and langnumber=$number";
$r = DBExec ($c, $sql2 . " for update", "DBNewLanguage(get lang)");
$n = DBnlines($r);
$ret=1;
if ($n == 0) {
DBExec ($c, "insert into langtable (contestnumber,langnumber, langname,langextension) values ".
"($contestnumber, $number, '$name','$extension')", "DBNewLanguage(insert lang)");
$s = "created";
}
else {
$lr = DBRow($r,0);
$t = $lr['updatetime'];
if($updatetime > $t) {
if ($name != "")
DBExec ($c, "update langtable set langname='$name', updatetime=$updatetime where contestnumber=$contestnumber ".
"and langnumber=$number", "DBNewLanguage(update lang)");
if ($extension != "")
DBExec ($c, "update langtable set langextension='$extension', updatetime=$updatetime where contestnumber=$contestnumber ".
"and langnumber=$number", "DBNewLanguage(update lang)");
}
$s = "updated";
}
if($cw)
DBExec($c, "commit work", "DBNewLanguage(commit)");
if($s=="created" || $updatetime > $t) {
LOGLevel ("Language $number updated (user=".$_SESSION["usertable"]["usernumber"].
",site=".$_SESSION["usertable"]["usersitenumber"].",contest=$contestnumber)", 2);
$ret=2;
}
return $ret;
}
// eof
?>
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