public function setOrder($order_by, $order)
{
$this->plist = NULL;
if ($order_by == 'ac') {
if ($order != 'asc') {
$order = 'desc';
}
$key = 'user_list_' . $order_by . '_' . $order . '_' . $this->getCurrentPage();
$cache = MDL_Cache::getInstance();
if (!isset($cache->{$key})) {
$sql = 'select `user_id` from ' . DB_TABLE_USER;
$db = BFL_Database::getInstance();
$stmt = $db->factory($sql);
$stmt->execute();
$user_records = array();
while ($user = $stmt->fetch()) {
$user_records[] = new MDL_User_Record(new MDL_User($user['user_id']));
}
$this->tmp_order = $order;
usort($user_records, array($this, 'cmpByAccepted'));
unset($this->tmp_order);
$users = array();
foreach ($user_records as $user_record) {
$users[] = $user_record->getUser();
}
$cache->{$key} = $users;
}
$users = $cache->{$key};
$this->plist = $this->separatePage($users);
}
}
/**
* getInstance
* @return BFL_Database
*/
public static function getInstance()
{
if (NULL === self::$_instance) {
self::$_instance = new self();
}
return self::$_instance;
}
public static function forceAvailable($judger_id)
{
$meta = array('`judger_available` = 1 ');
$db = BFL_Database::getInstance();
$stmt = $db->update(DB_TABLE_JUDGER, $meta, 'where `judger_id`=:judger_id');
$stmt->bindParam(':judger_id', $judger_id);
$stmt->execute();
}
public static function checkUserName($user_name)
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select count(*) as `exist` from ' . DB_TABLE_USER . ' where `user_name`=:user_name');
$stmt->bindParam(':user_name', $user_name);
$stmt->execute();
$rs = $stmt->fetch();
return $rs['exist'] == 0;
}
public static function delete($record_id)
{
$db = BFL_Database::getInstance();
$stmt = $db->delete(DB_TABLE_RECORD, 'where `record_id`=:record_id');
$stmt->bindParam(':record_id', $record_id);
$stmt->execute();
$stmt = $db->delete(DB_TABLE_RECORDMETA, 'where `rmeta_record_id`=:record_id');
$stmt->bindParam(':record_id', $record_id);
$stmt->execute();
}
/**
* getProblemName
* @param int $prob_id
* @return array
*/
public static function getProblemName($prob_id)
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select `prob_name`,`prob_title` from ' . DB_TABLE_PROB . ' WHERE `prob_id` = :prob_id');
$stmt->bindParam(':prob_id', $prob_id);
$stmt->execute();
$rs = $stmt->fetch();
if (empty($rs)) {
throw new MDL_Exception_Problem(MDL_Exception_Problem::NOTFOUND);
}
return $rs;
}
/**
* @return MDL_Judger
*/
public static function getAvailableJudger()
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select * from ' . DB_TABLE_JUDGER . ' where `judger_enabled` = 1
and `judger_available` = 1 order by judger_priority asc');
$stmt->execute();
$judger = $stmt->fetch();
if (empty($judger)) {
return NULL;
}
return new MDL_Judger($judger['judger_id']);
}
public static function getUserName($user_id)
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select `user_name`,`user_nickname` from ' . DB_TABLE_USER . ' WHERE `user_id` = :user_id');
$stmt->bindParam(':user_id', $user_id);
$stmt->execute();
$rs = $stmt->fetch();
if (empty($rs)) {
throw new MDL_Exception_User(MDL_Exception_User::INVALID_USER_ID);
}
return $rs;
}
/**
* getNextProblemID
* @return int
*/
public static function getNextProblemID()
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select MAX(`prob_id`) as maxid from ' . DB_TABLE_PROB);
$stmt->execute();
$rs = $stmt->fetch();
if (empty($rs)) {
$prob_id = 1001;
} else {
$prob_id = $rs['maxid'] + 1;
}
return $prob_id;
}
/**
* remove
* @param int $prob_id
* @return void
*/
public static function remove($prob_id)
{
$db = BFL_Database::getInstance();
$stmt = $db->delete(DB_TABLE_PROB, 'where `prob_id`=:prob_id');
$stmt->bindParam(':prob_id', $prob_id);
$stmt->execute();
$stmt = $db->delete(DB_TABLE_PROBMETA, 'where `pmeta_prob_id`=:prob_id');
$stmt->bindParam(':prob_id', $prob_id);
$stmt->execute();
$records = MDL_Problem_List::getRecords($prob_id);
foreach ($records as $record) {
MDL_Record_Edit::delete($record['record_id']);
}
}
protected function initializeRecord()
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select * from ' . DB_TABLE_RECORD . ' where `record_id`=:record_id');
$stmt->bindValue(':record_id', $this->getID());
$stmt->execute();
$record = $stmt->fetch();
if (empty($record)) {
throw new MDL_Exception_Record(MDL_Exception_Record::INVALID_RECORD_ID);
}
$this->problem = new MDL_Problem($record['record_prob_id']);
$this->user = new MDL_User($record['record_user_id']);
$this->judger = new MDL_Judger($record['record_judger_id']);
}
protected function getNamesByID()
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select * from ' . DB_TABLE_USER . ' WHERE `user_id` = :user_id');
$stmt->bindValue(':user_id', $this->getID());
$stmt->execute();
$rs = $stmt->fetch();
if (empty($rs)) {
throw new MDL_Exception_User(MDL_Exception_User::INVALID_USER_ID);
}
$this->user_name = $rs['user_name'];
$this->user_nickname = $rs['user_nickname'];
$this->user_password = $rs['user_password'];
}
public function getContestUsers()
{
if ($this->contest_users == NULL) {
$db = BFL_Database::getInstance();
$stmt = $db->factory('select cmeta_user_id from ' . DB_TABLE_CONTESTMETA . 'where `cmeta_contest_id`=:contest_id and `cmeta_key`="sign_up_time" ');
$stmt->bindValue(':contest_id', $this->contest_id);
$stmt->execute();
$this->contest_users = array();
while ($user_item = $stmt->fetch()) {
$user_id = $user_item['cmeta_user_id'];
$this->contest_users[] = new MDL_Contest_User($this, new MDL_User($user_id));
}
}
return $this->contest_users;
}
protected function updateList()
{
$sql = $this->sql_prefix;
$stmt = BFL_Database::getInstance()->factory($sql);
$stmt->execute();
$item_count = $stmt->rowCount();
$this->item_count = $item_count;
$current_page = $this->getCurrentPage();
if ($current_page > $this->getPageCount()) {
throw new MDL_Exception_List(MDL_Exception_List::INVALID_PAGE);
}
$page_size = $this->getPageSize();
$offset = $page_size * ($current_page - 1);
//Fetch list with LIMIT
$sql .= " LIMIT {$offset},{$page_size}";
$stmt = BFL_Database::getInstance()->factory($sql);
$stmt->execute();
$this->list = $stmt->fetchAll();
}
/**
* Do user authentication and set Session
*
* @return boolean whether succeeded to login
*/
public static function login($user_info)
{
//Compute the hash code of the password submited by user
$user_password_hash = self::passwordEncrypt($user_info['user_password']);
//Do datebase query to get the hash code of the password
$db = BFL_Database::getInstance();
$stmt = $db->factory('select `user_id`,`user_password` from ' . DB_TABLE_USER . ' WHERE `user_name` = :user_name');
$stmt->bindParam(':user_name', $user_info['user_name']);
$stmt->execute();
$rs = $stmt->fetch();
if (empty($rs)) {
throw new MDL_Exception_User_Passport(MDL_Exception_User_Passport::INVALID_USER_NAME);
}
if ($rs['user_password'] != $user_password_hash) {
throw new MDL_Exception_User_Passport(MDL_Exception_User_Passport::INVALID_USER_PASSWORD);
}
//Set user session
MDL_ACL::getInstance()->setUser(new MDL_User($rs['user_id']));
}
public static function getTask()
{
//find records whose record_judger_id = 0
$db = BFL_Database::getInstance();
$stmt = $db->factory('select `record_id`,`record_prob_id` from ' . DB_TABLE_RECORD . ' where `record_judger_id` = 0 order by `record_id` asc');
$stmt->execute();
$task = $stmt->fetch();
if (!$task) {
return array();
}
$record_meta = new MDL_Record_Meta($task['record_id']);
$task['language'] = $record_meta->getVar('lang');
$task['source'] = $record_meta->getVar('source');
$submit_time = $record_meta->getVar('submit_time');
$task['task_name'] = 'vkm_' . $task['record_id'];
$prob_names = MDL_Problem_Show::getProblemName($task['record_prob_id']);
$task['prob_name'] = $prob_names['prob_name'];
unset($task['record_prob_id']);
return $task;
}
public function getRecords()
{
if ($this->records === NULL) {
$user_id = $this->getUser()->getID();
$cache_key = 'user_records_' . $user_id;
$cache = MDL_Cache::getInstance();
if (!isset($cache->{$cache_key})) {
$db = BFL_Database::getInstance();
$stmt = $db->factory('select `record_id` from ' . DB_TABLE_RECORD . ' where `record_user_id`=:user_id');
$stmt->bindValue(':user_id', $user_id);
$stmt->execute();
$records = array();
while ($rs = $stmt->fetch()) {
$records[] = new MDL_Record($rs['record_id'], MDL_Record::GET_ALL);
}
$cache->{$cache_key} = $records;
}
$records = $cache->{$cache_key};
$this->records = $records;
}
return $this->records;
}
/**
*
* @param Exception $exception
*/
public static function exceptionHandler($exception)
{
//撤銷數據庫改動
$db = BFL_Database::getInstance();
$db->rollback();
if ($exception instanceof MDL_Exception) {
$desc = BFL_Serializer::transmitEncode($exception->getDesc());
MDL_Locator::getInstance()->redirect(self::$error_page, NULL, '?' . $desc);
} else {
if (DEBUG) {
echo $exception->getMessage();
$error_massage = $exception->getTraceAsString();
} else {
if ($exception instanceof PDOException) {
$error_massage = "DB Error";
} else {
$error_massage = "Vakuum Error";
}
}
die($error_massage);
}
}
protected function writeVar($key, $value, $action)
{
$db = BFL_Database::getInstance();
switch ($action) {
case self::ADD:
$meta = array($this->key_name => ':key', $this->value_name => ':value');
$meta = array_merge($meta, $this->idmeta);
$stmt = $db->insert($this->table_name, $meta);
$stmt->bindParam(':key', $key);
$stmt->bindParam(':value', $value);
break;
case self::MODIFY:
$meta = array("`{$this->value_name}` = :value");
$condition = "WHERE `{$this->key_name}`=:key and {$this->condition}";
$stmt = $db->update($this->table_name, $meta, $condition);
$stmt->bindParam(':key', $key);
$stmt->bindParam(':value', $value);
break;
case self::REMOVE:
$stmt = $db->delete($this->table_name, "where `{$this->key_name}`=:key and {$this->condition}");
$stmt->bindParam(':key', $key);
break;
default:
throw new MDL_Exception_Meta(MDL_Exception_Meta::INVALID_WRITE_ACTION);
}
$stmt->execute();
}
public function getRecords()
{
$db = BFL_Database::getInstance();
$stmt = $db->factory('select `record_id` from ' . DB_TABLE_RECORD . ' where `record_prob_id`=:prob_id');
$stmt->bindValue(':prob_id', $this->getID());
$stmt->execute();
$records = array();
while ($rs = $stmt->fetch()) {
$records[] = new MDL_Record($rs['record_id']);
}
return $records;
}
public static function remove($user_id)
{
$db = BFL_Database::getInstance();
$stmt = $db->delete(DB_TABLE_USER, 'where `user_id`=:user_id');
$stmt->bindParam(':user_id', $user_id);
$stmt->execute();
$stmt = $db->delete(DB_TABLE_USERMETA, 'where `umeta_user_id`=:user_id');
$stmt->bindParam(':user_id', $user_id);
$stmt->execute();
$stmt = $db->factory('select `record_id` from ' . DB_TABLE_RECORD . ' where `record_user_id`=:user_id');
$stmt->bindParam(':user_id', $user_id);
$stmt->execute();
$records = $stmt->fetchAll();
$stmt = NULL;
foreach ($records as $record) {
MDL_Record_Edit::delete($record['record_id']);
}
}
<?php
require_once 'library/global.php';
require_once 'library/BFL/BFL_Loader.php';
//初始化自動加載器
BFL_Loader::setBFLPath('./library/BFL/');
BFL_Loader::setControllerPath('./library/application/controller/');
BFL_Loader::setModelPath('./library/application/model/');
//初始化計時器
BFL_Timer::initialize();
//設置運行時全局變量
BFL_Register::setVar('password_encode_word', PWD_ENCWORD);
BFL_Register::setVar('db_info', getDBInfo());
//初始化數據庫事務處理
$db = BFL_Database::getInstance();
$db->beginTransaction();
//初始化參數表
$config = MDL_Config::getInstance();
//設置全局異常捕捉函數
set_exception_handler(array('MDL_GlobalControl', 'exceptionHandler'));
//設置退出回調函數
register_shutdown_function(array('MDL_GlobalControl', 'shutdownHandler'));
//檢查地址綁定
$bind_address = $config->getVar('site_address');
if ($bind_address != '' && $bind_address != BFL_General::getServerAddress()) {
BFL_Controller::redirect($bind_address);
}
//初始化用戶會話
MDL_ACL::getInstance()->initialize(SESSION_PREFIX, 'guest');
MDL_User_Auth::getLoginedUserInformation();
//加載插件
private function turn($judger_available)
{
$db = BFL_Database::getInstance();
$meta = array('`judger_available` = :judger_available');
if ($judger_available == 0) {
$meta[] = '`judger_count` = `judger_count` + 1';
}
$stmt = $db->update(DB_TABLE_JUDGER, $meta, 'where `judger_id`=:judger_id');
$stmt->bindValue(':judger_available', $judger_available);
$stmt->bindValue(':judger_id', $this->getID());
$stmt->execute();
}
public static function resetRecord($record_id)
{
$db = BFL_Database::getInstance();
$stmt = $db->update(DB_TABLE_RECORD, '`record_judger_id` = 0', 'where `record_id`=:record_id');
$stmt->bindParam(':record_id', $record_id);
$stmt->execute();
$record_meta = new MDL_Record_Meta($record_id);
$meta = array('status' => self::STATUS_WAITING, 'result' => '', 'memory' => '0', 'time' => '0', 'score' => 0.0);
$record_meta->setVars($meta);
}
protected function getDatabaseQueryCount()
{
return BFL_Database::getInstance()->getQueryCount();
}
