$bolt_ex->index = 0;
$bolt_ex->score = 0;
$bolt_query_string = $item->query_string;
srand($view_id);
ob_start();
// buffer output to avoid showing exercise text
require $item->filename;
ob_end_clean();
$bolt_ex->score /= $bolt_ex->index;
if ($item->callback) {
call_user_func($item->callback, $bolt_ex->score, $bolt_ex->query_string);
}
// make a record of the result
$qs = BoltDb::escape_string($_SERVER['QUERY_STRING']);
$now = time();
$result_id = BoltResult::insert("(create_time, user_id, course_id, view_id, item_name, score, response)\n values ({$now}, {$user->id}, {$course->id}, {$view->id}, '{$view->item_name}', {$bolt_ex->score}, '{$qs}')");
$view->update("result_id={$result_id}");
// If this is part of an exercise set, call its callback function
//
$repeat = null;
$xset = $iter->xset;
if ($xset) {
$is_last = $xset->xset_record_score($iter, $bolt_ex->score, $view->id, $avg_score, $repeat);
if ($repeat) {
$repeat->avg_score = $avg_score;
}
if ($is_last) {
// if the exercise set if finished, make or update DB records
//
if ($xset->callback) {
call_user_func($xset->callback, $avg_score);
function map_gen_ex($uid, $unit, $sb)
{
global $course, $now;
if (frand() < $sb->attr) {
$mode = BOLT_MODE_SHOW;
$action = BOLT_ACTION_NONE;
BoltView::insert("(user_id, course_id, item_name, mode, action, start_time) values ({$uid}, {$course->id}, '{$unit->name}', {$mode}, {$action}, {$now})");
return false;
} else {
$t = $now + urand($sb->time_mean, $sb->time_dev);
$mode = BOLT_MODE_SHOW;
$action = BOLT_ACTION_NEXT;
BoltView::insert("(user_id, course_id, item_name, mode, action, start_time, end_time) values ({$uid}, {$course->id}, '{$unit->name}', {$mode}, {$action}, {$now}, {$t})");
$score = urand($sb->score_mean, $sb->score_dev);
BoltResult::insert("(create_time, user_id, course_id, item_name, score) values ({$now}, {$uid}, {$course->id}, '{$unit->name}', {$score})");
return map_gen_ans($uid, $unit, $sb);
}
}
