/**
* Removes all grades from gradebook
* @param int $courseid
* @param string optional type
*/
function data_reset_gradebook($courseid, $type = '')
{
global $CFG;
$sql = "SELECT d.*, cm.idnumber as cmidnumber, d.course as courseid\n FROM {$CFG->prefix}data d, {$CFG->prefix}course_modules cm, {$CFG->prefix}modules m\n WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id AND d.course={$courseid}";
if ($datas = get_records_sql($sql)) {
foreach ($datas as $data) {
data_grade_item_update($data, 'reset');
}
}
}
/**
* Removes all grades from gradebook
*
* @global object
* @global object
* @param int $courseid
* @param string $type optional type
*/
function data_reset_gradebook($courseid, $type='') {
global $CFG, $DB;
$sql = "SELECT d.*, cm.idnumber as cmidnumber, d.course as courseid
FROM {data} d, {course_modules} cm, {modules} m
WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id AND d.course=?";
if ($datas = $DB->get_records_sql($sql, array($courseid))) {
foreach ($datas as $data) {
data_grade_item_update($data, 'reset');
}
}
}
/**
* Update grades by firing grade_updated event
*
* @param object $data null means all databases
* @param int $userid specific user only, 0 mean all
*/
function data_update_grades($data = null, $userid = 0, $nullifnone = true)
{
global $CFG;
if (!function_exists('grade_update')) {
//workaround for buggy PHP versions
require_once $CFG->libdir . '/gradelib.php';
}
if ($data != null) {
if ($grades = data_get_user_grades($data, $userid)) {
grade_update('mod/data', $data->course, 'mod', 'data', $data->id, 0, $grades);
} else {
if ($userid and $nullifnone) {
$grade = new object();
$grade->userid = $userid;
$grade->rawgrade = NULL;
grade_update('mod/data', $data->course, 'mod', 'data', $data->id, 0, $grade);
}
}
} else {
$sql = "SELECT d.*, cm.idnumber as cmidnumber\n FROM {$CFG->prefix}data d, {$CFG->prefix}course_modules cm, {$CFG->prefix}modules m\n WHERE m.name='data' AND m.id=cm.module AND cm.instance=d.id";
if ($rs = get_recordset_sql($sql)) {
if ($rs->RecordCount() > 0) {
while ($data = rs_fetch_next_record($rs)) {
data_grade_item_update($data);
if ($data->assessed) {
data_update_grades($data, 0, false);
}
}
}
rs_close($rs);
}
}
}