/**
* Unassign the users from the track.
*
* @param array $elements An array of user informatio to unassign from the track.
* @param bool $bulkaction Whether this is a bulk-action or not.
* @return array An array to format as JSON and return to the Javascript.
*/
protected function _respond_to_js(array $elements, $bulkaction)
{
global $DB;
$trackid = required_param('id', PARAM_INT);
// Permissions.
$tpage = new trackpage();
if ($tpage->_has_capability('local/elisprogram:track_view', $trackid) !== true) {
return array('result' => 'fail', 'msg' => get_string('not_permitted', 'local_elisprogram'));
}
foreach ($elements as $userid => $label) {
if ($this->can_unassign($trackid, $userid) === true) {
$assignrec = $DB->get_record(usertrack::TABLE, array('userid' => $userid, 'trackid' => $trackid));
$usertrack = new usertrack($assignrec);
$usertrack->delete();
}
}
return array('result' => 'success', 'msg' => 'Success');
}
/**
* Unassign the tracks from the user.
* @param array $elements An array containing information on tracks to unassign from the user.
* @param bool $bulkaction Whether this is a bulk-action or not.
* @return array An array to format as JSON and return to the Javascript.
*/
protected function _respond_to_js(array $elements, $bulkaction)
{
global $DB;
$userid = required_param('id', PARAM_INT);
foreach ($elements as $trackid => $label) {
if ($this->can_unassign($userid, $trackid) === true) {
$assignrec = $DB->get_record(usertrack::TABLE, array('userid' => $userid, 'trackid' => $trackid));
$usertrack = new usertrack($assignrec);
$usertrack->delete();
}
}
return array('result' => 'success', 'msg' => 'Success');
}
/**
* Delete a track enrolment
*
* @param object $record One record of import data
* @param string $filename The import file name, used for logging
* @param string $idnumber The idnumber of the track
*
* @return boolean true on success, otherwise false
*/
function track_enrolment_delete($record, $filename, $idnumber)
{
global $CFG, $DB;
require_once $CFG->dirroot . '/local/elisprogram/lib/setup.php';
require_once elispm::lib('data/track.class.php');
require_once elispm::lib('data/usertrack.class.php');
if (!($trackid = $DB->get_field(track::TABLE, 'id', array('idnumber' => $idnumber)))) {
$this->fslogger->log_failure("instance value of \"{$idnumber}\" does not refer to a valid instance of a track context.", 0, $filename, $this->linenumber, $record, "enrolment");
return false;
}
$userid = $this->get_userid_from_record($record, $filename);
//string to describe the user
$user_descriptor = $this->get_user_descriptor($record, false, 'user_');
if (!$DB->record_exists(usertrack::TABLE, array('trackid' => $trackid, 'userid' => $userid))) {
$this->fslogger->log_failure("User with {$user_descriptor} is not enrolled in track \"{$idnumber}\".", 0, $filename, $this->linenumber, $record, "enrolment");
return false;
}
if (!$this->validate_track_enrolment_data('delete', $record, $filename)) {
return false;
}
//obtain the track id
$trackid = $DB->get_field(track::TABLE, 'id', array('idnumber' => $idnumber));
//delete the association
$usertrackid = $DB->get_field(usertrack::TABLE, 'id', array('userid' => $userid, 'trackid' => $trackid));
$usertrack = new usertrack($usertrackid);
$usertrack->delete();
//log success
$success_message = "User with {$user_descriptor} successfully unenrolled from track \"{$idnumber}\".";
$this->fslogger->log_success($success_message, 0, $filename, $this->linenumber);
return true;
}
