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<?php
// This file keeps track of upgrades to
// the assignment module
//
// Sometimes, changes between versions involve
// alterations to database structures and other
// major things that may break installations.
//
// The upgrade function in this file will attempt
// to perform all the necessary actions to upgrade
// your older installation to the current version.
//
// If there's something it cannot do itself, it
// will tell you what you need to do.
//
// The commands in here will all be database-neutral,
// using the methods of database_manager class
//
// Please do not forget to use upgrade_set_timeout()
// before any action that may take longer time to finish.
function xmldb_assignment_upgrade($oldversion) {
global $CFG, $DB, $OUTPUT;
$dbman = $DB->get_manager();
//===== 1.9.0 upgrade line ======//
if ($oldversion < 2007101511) {
// change grade typo to text if no grades MDL-13920
require_once $CFG->dirroot.'/mod/assignment/lib.php';
assignment_upgrade_grades();
upgrade_mod_savepoint(true, 2007101511, 'assignment');
}
if ($oldversion < 2008081900) {
/////////////////////////////////////
/// new file storage upgrade code ///
/////////////////////////////////////
$fs = get_file_storage();
$sqlfrom = "FROM {assignment_submissions} s
JOIN {assignment} a ON a.id = s.assignment
JOIN {modules} m ON m.name = 'assignment'
JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = a.id)";
$count = $DB->count_records_sql("SELECT COUNT('x') $sqlfrom");
$rs = $DB->get_recordset_sql("SELECT s.id, s.userid, s.teacher, s.assignment, a.course, cm.id AS cmid $sqlfrom ORDER BY a.course, s.assignment");
if ($rs->valid()) {
$pbar = new progress_bar('migrateassignmentfiles', 500, true);
$i = 0;
foreach ($rs as $submission) {
$i++;
upgrade_set_timeout(180); // set up timeout, may also abort execution
$pbar->update($i, $count, "Migrating assignment submissions - $i/$count.");
$basepath = "$CFG->dataroot/$submission->course/$CFG->moddata/assignment/$submission->assignment/$submission->userid/";
if (!file_exists($basepath)) {
//no files
continue;
}
$context = get_context_instance(CONTEXT_MODULE, $submission->cmid);
// migrate submitted files first
$path = $basepath;
$items = new DirectoryIterator($path);
foreach ($items as $item) {
if (!$item->isFile()) {
continue;
}
if (!$item->isReadable()) {
echo $OUTPUT->notification(" File not readable, skipping: ".$path.$item->getFilename());
continue;
}
$filename = clean_param($item->getFilename(), PARAM_FILE);
if ($filename === '') {
continue;
}
if (!$fs->file_exists($context->id, 'mod_assignment', 'submission', $submission->id, '/', $filename)) {
$file_record = array('contextid'=>$context->id, 'component'=>'mod_assignment', 'filearea'=>'submission', 'itemid'=>$submission->id, 'filepath'=>'/', 'filename'=>$filename, 'userid'=>$submission->userid);
if ($fs->create_file_from_pathname($file_record, $path.$item->getFilename())) {
unlink($path.$item->getFilename());
}
}
}
unset($items); //release file handles
// migrate teacher response files for "upload" subtype, unfortunately we do not
$path = $basepath.'responses/';
if (file_exists($path)) {
$items = new DirectoryIterator($path);
foreach ($items as $item) {
if (!$item->isFile()) {
continue;
}
$filename = clean_param($item->getFilename(), PARAM_FILE);
if ($filename === '') {
continue;
}
if (!$fs->file_exists($context->id, 'mod_assignment', 'response', $submission->id, '/', $filename)) {
$file_record = array('contextid'=>$context->id, 'component'=>'mod_assignment', 'filearea'=>'response', 'itemid'=>$submission->id, 'filepath'=>'/', 'filename'=>$filename,
'timecreated'=>$item->getCTime(), 'timemodified'=>$item->getMTime());
if ($submission->teacher) {
$file_record['userid'] = $submission->teacher;
}
if ($fs->create_file_from_pathname($file_record, $path.$item->getFilename())) {
unlink($path.$item->getFilename());
}
}
}
unset($items); //release file handles
@rmdir("$CFG->dataroot/$submission->course/$CFG->moddata/assignment/$submission->assignment/$submission->userid/responses");
}
// remove dirs if empty
@rmdir("$CFG->dataroot/$submission->course/$CFG->moddata/assignment/$submission->assignment/$submission->userid");
@rmdir("$CFG->dataroot/$submission->course/$CFG->moddata/assignment/$submission->assignment");
@rmdir("$CFG->dataroot/$submission->course/$CFG->moddata/assignment");
}
}
$rs->close();
upgrade_mod_savepoint(true, 2008081900, 'assignment');
}
if ($oldversion < 2009042000) {
/// Rename field description on table assignment to intro
$table = new xmldb_table('assignment');
$field = new xmldb_field('description', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, 'name');
/// Launch rename field description
$dbman->rename_field($table, $field, 'intro');
/// assignment savepoint reached
upgrade_mod_savepoint(true, 2009042000, 'assignment');
}
if ($oldversion < 2009042001) {
/// Rename field format on table assignment to introformat
$table = new xmldb_table('assignment');
$field = new xmldb_field('format', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');
/// Launch rename field format
$dbman->rename_field($table, $field, 'introformat');
/// assignment savepoint reached
upgrade_mod_savepoint(true, 2009042001, 'assignment');
}
// Moodle v2.1.0 release upgrade line
// Put any upgrade step following this
// Moodle v2.2.0 release upgrade line
// Put any upgrade step following this
return true;
}
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