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110 lines
4.5 KiB
PHP
110 lines
4.5 KiB
PHP
<?php //$Id$
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// This file keeps track of upgrades to
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// the glossary module
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//
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// Sometimes, changes between versions involve
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// alterations to database structures and other
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// major things that may break installations.
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//
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// The upgrade function in this file will attempt
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// to perform all the necessary actions to upgrade
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// your older installtion to the current version.
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//
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// If there's something it cannot do itself, it
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// will tell you what you need to do.
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//
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// The commands in here will all be database-neutral,
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// using the methods of database_manager class
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//
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// Please do not forget to use upgrade_set_timeout()
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// before any action that may take longer time to finish.
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function xmldb_glossary_upgrade($oldversion) {
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global $CFG, $DB;
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$dbman = $DB->get_manager();
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$result = true;
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//===== 1.9.0 upgrade line ======//
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if ($result && $oldversion < 2008081900) {
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/////////////////////////////////////
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/// new file storage upgrade code ///
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/////////////////////////////////////
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$fs = get_file_storage();
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$empty = $DB->sql_empty(); // silly oracle empty string handling workaround
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$sqlfrom = "FROM {glossary_entries} ge
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JOIN {glossary} g ON g.id = ge.glossaryid
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JOIN {modules} m ON m.name = 'glossary'
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JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = g.id)
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WHERE ge.attachment <> '$empty' AND ge.attachment <> '1'";
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$count = $DB->count_records_sql("SELECT COUNT('x') $sqlfrom");
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if ($rs = $DB->get_recordset_sql("SELECT ge.id, ge.userid, ge.attachment, ge.glossaryid, ge.sourceglossaryid, g.course, cm.id AS cmid $sqlfrom ORDER BY g.course, g.id")) {
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$pbar = new progress_bar('migrateglossaryfiles', 500, true);
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$olddebug = $DB->get_debug();
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$DB->set_debug(false); // lower debug level, there might be very many files
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$i = 0;
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foreach ($rs as $entry) {
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$i++;
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upgrade_set_timeout(60); // set up timeout, may also abort execution
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$pbar->update($i, $count, "Migrating glossary entries - $i/$count.");
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$filepath = "$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->glossaryid/$entry->id/$entry->attachment";
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if ($entry->sourceglossaryid and !is_readable($filepath)) {
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//eh - try the second possible location
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$filepath = "$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->sourceglossaryid/$entry->id/$entry->attachment";
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}
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if (!is_readable($filepath)) {
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//file missing??
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notify("File not readable, skipping: $filepath");
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$entry->attachment = '';
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$DB->update_record('glossary_entries', $entry);
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continue;
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}
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$context = get_context_instance(CONTEXT_MODULE, $entry->cmid);
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$filearea = 'glossary_attachment';
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$filename = clean_param($entry->attachment, PARAM_FILE);
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if ($filename === '') {
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notify("Unsupported entry filename, skipping: ".$filepath);
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$entry->attachment = '';
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$DB->update_record('glossary_entries', $entry);
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continue;
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}
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if (!$fs->file_exists($context->id, $filearea, $entry->id, '/', $filename)) {
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$file_record = array('contextid'=>$context->id, 'filearea'=>$filearea, 'itemid'=>$entry->id, 'filepath'=>'/', 'filename'=>$filename, 'userid'=>$entry->userid);
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if ($fs->create_file_from_pathname($file_record, $filepath)) {
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$entry->attachment = '1';
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if ($DB->update_record('glossary_entries', $entry)) {
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unlink($filepath);
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}
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}
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}
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// remove dirs if empty
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@rmdir("$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->glossaryid/$entry->id");
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@rmdir("$CFG->dataroot/$entry->course/$CFG->moddata/glossary/$entry->glossaryid");
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@rmdir("$CFG->dataroot/$entry->course/$CFG->moddata/glossary");
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}
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$DB->set_debug($olddebug); // reset debug level
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$rs->close();
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}
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upgrade_mod_savepoint($result, 2008081900, 'glossary');
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}
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return $result;
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}
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?>
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