moodle/mod/scorm/db/upgradelib.php

111 lines
3.8 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Resource module upgrade related helper functions
*
* @package mod
* @subpackage scorm
* @copyright 2010 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die;
/**
* Migrate extracted scorm package from moddata to new area if found
* @param stdClass $scorm
* @return
*/
function scorm_migrate_moddata_files($scorm, $context) {
global $CFG;
// now migrate the extracted package
$basepath = "$CFG->dataroot/$scorm->course/$CFG->moddata/scorm/$scorm->id";
if (!is_dir($basepath)) {
//no files?
return;
}
scorm_migrate_moddata_subdir($context, $basepath, '/');
}
/**
* Migrates physical scorm package files to proper new file area files
* @param stdClass $context
* @param string $base
* @param string $path
* @return void
*/
function scorm_migrate_moddata_subdir($context, $base, $path) {
global $OUTPUT;
$fullpathname = $base.$path;
$fs = get_file_storage();
$filearea = 'content';
$items = new DirectoryIterator($fullpathname);
foreach ($items as $item) {
if ($item->isDot()) {
unset($item); // release file handle
continue;
}
if ($item->isLink()) {
// do not follow symlinks - they were never supported in moddata, sorry
unset($item); // release file handle
continue;
}
if ($item->isFile()) {
if (!$item->isReadable()) {
echo $OUTPUT->notification(" File not readable, skipping: ".$fullpathname.$item->getFilename());
unset($item); // release file handle
continue;
}
$filepath = clean_param($path, PARAM_PATH);
$filename = clean_param($item->getFilename(), PARAM_FILE);
$oldpathname = $fullpathname.$item->getFilename();
if ($filename === '') {
continue;
unset($item); // release file handle
}
if (!$fs->file_exists($context->id, 'mod_scorm', $filearea, '0', $filepath, $filename)) {
$file_record = array('contextid'=>$context->id, 'component'=>'mod_scorm', 'filearea'=>$filearea, 'itemid'=>0, 'filepath'=>$filepath, 'filename'=>$filename,
'timecreated'=>$item->getCTime(), 'timemodified'=>$item->getMTime());
unset($item); // release file handle
if ($fs->create_file_from_pathname($file_record, $oldpathname)) {
@unlink($oldpathname);
}
} else {
unset($item); // release file handle
}
} else {
//migrate recursively all subdirectories
$oldpathname = $fullpathname.$item->getFilename().'/';
$subpath = $path.$item->getFilename().'/';
unset($item); // release file handle
scorm_migrate_moddata_subdir($context, $base, $subpath);
@rmdir($oldpathname); // deletes dir if empty
}
}
unset($items); //release file handles
}