/**
* Returns the HTML to display the file submitted by the student
* (adapted from mod/assignment/lib.php)
*
* @param int $attemptid attempt id
* @param int $questionid question id
* @return string string to print to display file list
*/
function get_student_answer($attemptid, $questionid)
{
global $CFG;
$filearea = quiz_file_area_name($attemptid, $questionid);
$output = '';
if ($basedir = quiz_file_area($filearea)) {
if ($files = get_directory_list($basedir)) {
if (count($files) == 0) {
return false;
}
foreach ($files as $key => $file) {
require_once $CFG->libdir . '/filelib.php';
$icon = mimeinfo('icon', $file);
// remove "questionattempt", the first dir in the path, from the URL
$filearealist = explode('/', $filearea);
$fileareaurl = implode('/', array_slice($filearealist, 1));
if ($CFG->slasharguments) {
$ffurl = "{$CFG->wwwroot}/question/file.php/{$fileareaurl}/{$file}";
} else {
$ffurl = "{$CFG->wwwroot}/question/file.php?file=/{$fileareaurl}/{$file}";
}
$output .= '<img align="middle" src="' . $CFG->pixpath . '/f/' . $icon . '" class="icon" alt="' . $icon . '" />' . '<a href="' . $ffurl . '" >' . $file . '</a><br />';
}
}
}
// (Is this desired for theme reasons?)
//$output = '<div class="files">'.$output.'</div>';
return $output;
}
/**
* Deletes files submitted in these states
*
* @param string $stateslist Comma separated list of state ids to be deleted
* @return boolean to indicate success or failure.
*/
function delete_states($stateslist)
{
global $CFG;
$states = explode(',', $stateslist);
foreach ($states as $stateid) {
$state = get_record("question_states", "id", "{$stateid}");
$attemptid = $state->attempt;
$questionid = $state->question;
// delete any files submitted in this attempt
$dir = quiz_file_area_name($attemptid, $questionid);
if (file_exists($CFG->dataroot . '/' . $dir)) {
fulldelete($CFG->dataroot . '/' . $dir);
$dirparts = explode('/', $dir);
// the directory is two levels deep, so delete the lower directory, too
array_pop($dirparts);
$dir = implode('/', $dirparts);
fulldelete($CFG->dataroot . '/' . $dir);
}
}
return true;
}