boinc/html/inc/bolt_db.inc

267 lines
7.9 KiB
PHP

<?php
require_once("../inc/db_conn.inc");
require_once("../inc/util.inc");
define('BOLT_PHASE_STUDY', 1);
// sequential progress through course
define('BOLT_PHASE_REVIEW', 2);
// review and repeat of an exercise set
define('BOLT_PHASE_REFRESH', 3);
// timed repeat of exercise set, and possibly review and repeat
define('BOLT_MODE_LESSON', 1);
define('BOLT_MODE_SHOW', 2);
define('BOLT_MODE_SCORE', 3);
define('BOLT_MODE_ANSWER', 4);
define('BOLT_MODE_FINISHED', 5);
define('BOLT_ACTION_NONE', 0);
define('BOLT_ACTION_NEXT', 1);
define('BOLT_ACTION_PREV', 2);
define('BOLT_ACTION_SUBMIT', 3);
define('BOLT_ACTION_QUESTION', 4);
define('BOLT_ACTION_COURSE_HOME', 5);
define('BOLT_ACTION_REVIEW', 6);
define('BOLT_ACTION_REPEAT', 7);
define('BOLT_COURSE_NOT_STARTED', 1);
define('BOLT_COURSE_STARTED', 2);
define('BOLT_COURSE_FINISHED', 3);
// bits in bolt_user.flags
define('BOLT_FLAGS_DEBUG', 1); // print debugging info in output pages
define('BOLT_FLAGS_SHOW_ALL', 2); // show hidden courses
class BoltDb extends DbConn {
static $instance;
static function get() {
if (web_stopped()) {
if ($generating_xml) {
xml_error(-183);
} else {
page_head("Page not available");
echo "This page requires database access.
Our database server is temporarily shut down for maintenance.
Please try again later.
";
page_tail();
}
exit();
}
if (!isset($instance)) {
$config = get_config();
$user = parse_config($config, '<bolt_db_user>');
$passwd = parse_config($config, '<bolt_db_passwd>');
$host = parse_config($config, '<bolt_db_host>');
$name = parse_config($config, '<bolt_db_name>');
if ($host == null) {
$host = "localhost";
}
$instance = new DbConn();
$retval = $instance->init_conn($user, $passwd, $host, $name);
if (!$retval) return null;
}
return $instance;
}
static function escape_string($string) {
$db = self::get();
return $db->base_escape_string($string);
}
}
class BoltUser {
static $cache;
static function lookup_userid($id) {
$db = BoltDb::get();
return $db->lookup('bolt_user', 'BoltUser', "user_id=$id");
}
static function insert($clause) {
$db = BoltDb::get();
return $db->insert('bolt_user', $clause);
}
static function lookup(&$user) {
if (!$user) return;
if (isset($user->bolt)) return;
if (isset(self::$cache[$user->id])) {
$bolt = self::$cache[$user->id];
} else {
$bolt = self::lookup_userid($user->id);
if (!$bolt) {
self::insert("(user_id) values ($user->id)");
$bolt = self::lookup_userid($user->id);
}
self::$cache[$user->id] = $bolt;
}
$user->bolt = $bolt;
}
function update($clause) {
$db = BoltDb::get();
$clause = "$clause where user_id=$this->user_id";
return $db->update_aux('bolt_user', $clause);
}
}
class BoltCourse {
static function insert($clause) {
$db = BoltDb::get();
$ret = $db->insert('bolt_course', $clause);
if (!$ret) return $ret;
return $db->insert_id();
}
static function lookup_id($id) {
$db = BoltDb::get();
return $db->lookup_id($id, 'bolt_course', 'BoltCourse');
}
static function lookup_name($name) {
$db = BoltDb::get();
return $db->lookup('bolt_course', 'BoltCourse', "short_name='$name'");
}
static function enum() {
$db = BoltDb::get();
return $db->enum('bolt_course', 'BoltCourse');
}
function update($clause) {
$db = BoltDb::get();
return $db->update($this, 'bolt_course', $clause);
}
}
class BoltEnrollment {
function insert($clause) {
$db = BoltDb::get();
return $db->insert('bolt_enrollment', $clause);
}
function lookup($user_id, $course_id) {
$db = BoltDb::get();
return $db->lookup('bolt_enrollment', 'BoltEnrollment', "user_id=$user_id and course_id=$course_id");
}
function update($clause) {
$db = BoltDb::get();
$db->update_aux('bolt_enrollment', "$clause where user_id=$this->user_id and course_id=$this->course_id");
}
function delete($user_id, $course_id) {
$db = BoltDb::get();
$db->delete_aux('bolt_enrollment', "user_id=$user_id and course_id=$course_id");
}
}
class BoltView {
static function insert($clause) {
$db = BoltDb::get();
$ret = $db->insert('bolt_view', $clause);
if (!$ret) return null;
return $db->insert_id();
}
static function lookup_id($id) {
$db = BoltDb::get();
return $db->lookup_id($id, 'bolt_view', 'BoltView');
}
function update($clause) {
$db = BoltDb::get();
$db->update($this, 'bolt_view', $clause);
}
static function enum($clause) {
$db = BoltDb::get();
return $db->enum('bolt_view', 'BoltView', $clause);
}
}
class BoltResult {
static function insert($clause) {
$db = BoltDb::get();
$ret = $db->insert('bolt_result', $clause);
if (!$ret) return null;
return $db->insert_id();
}
static function lookup_id($id) {
$db = BoltDb::get();
return $db->lookup_id($id, 'bolt_result', 'BoltResult');
}
static function enum($clause) {
$db = BoltDb::get();
return $db->enum('bolt_view', 'BoltResult', $clause);
}
}
class BoltXsetResult {
static function lookup_id($id) {
$db = BoltDb::get();
return $db->lookup_id($id, 'bolt_xset_result', 'BoltXsetResult');
}
function insert($clause) {
$db = BoltDb::get();
$ret = $db->insert('bolt_xset_result', $clause);
if (!$ret) return null;
return $db->insert_id();
}
static function enum($clause) {
$db = BoltDb::get();
return $db->enum('bolt_xset_result', 'BoltXsetResult', $clause);
}
}
class BoltRefreshRec {
static function lookup_id($id) {
$db = BoltDb::get();
return $db->lookup_id($id, 'bolt_refresh', 'BoltRefreshRec');
}
function lookup($clause) {
$db = BoltDb::get();
return $db->lookup('bolt_refresh', 'BoltRefreshRec', $clause);
}
static function replace($clause) {
$db = BoltDb::get();
return $db->replace('bolt_refresh', $clause);
}
function insert($clause) {
$db = BoltDb::get();
$ret = $db->insert('bolt_refresh', $clause);
if (!$ret) return null;
return $db->insert_id();
}
static function enum($clause) {
$db = BoltDb::get();
return $db->enum('bolt_refresh', 'BoltRefreshRec', $clause);
}
function update($clause) {
$db = BoltDb::get();
$db->update($this, 'bolt_refresh', $clause);
}
}
class BoltSelectFinished {
function insert($clause) {
$db = BoltDb::get();
return $db->insert('bolt_select_finished', $clause);
}
static function enum($clause) {
$db = BoltDb::get();
return $db->enum('bolt_select_finished', 'BoltSelectFinished', $clause);
}
}
class BoltQuestion {
function insert($clause) {
$db = BoltDb::get();
return $db->insert('bolt_question', $clause);
}
static function enum($clause) {
$db = BoltDb::get();
return $db->enum('bolt_question', 'BoltQuestion', $clause);
}
}
// TODO: move this somewhere else, and think about whether it's correct
//
function bolt_course_status($course_id, $user_id) {
$e = BoltEnrollment::lookup($user_id, $course_id);
if (!$e) return BOLT_COURSE_NOT_STARTED;
$view = BoltView::lookup_id($e->last_view_id);
if ($view->fraction_done == 1) return BOLT_COURSE_FINISHED;
return BOLT_COURSE_STARTED;
}
?>