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upgrade.php
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upgrade.php
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<?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/>.
/**
* This file keeps track of upgrades to
* the forum 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.
*
* @package mod_forum
* @copyright 2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
function xmldb_forum_upgrade($oldversion) {
global $CFG, $DB, $OUTPUT;
$dbman = $DB->get_manager(); // Loads ddl manager and xmldb classes.
// Moodle v2.2.0 release upgrade line.
// Put any upgrade step following this.
// Moodle v2.3.0 release upgrade line.
// Put any upgrade step following this.
// Moodle v2.4.0 release upgrade line.
// Put any upgrade step following this.
if ($oldversion < 2013020500) {
// Define field displaywordcount to be added to forum.
$table = new xmldb_table('forum');
$field = new xmldb_field('displaywordcount', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'completionposts');
// Conditionally launch add field displaywordcount.
if (!$dbman->field_exists($table, $field)) {
$dbman->add_field($table, $field);
}
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2013020500, 'forum');
}
// Forcefully assign mod/forum:allowforcesubscribe to frontpage role, as we missed that when
// capability was introduced.
if ($oldversion < 2013021200) {
// If capability mod/forum:allowforcesubscribe is defined then set it for frontpage role.
if (get_capability_info('mod/forum:allowforcesubscribe')) {
assign_legacy_capabilities('mod/forum:allowforcesubscribe', array('frontpage' => CAP_ALLOW));
}
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2013021200, 'forum');
}
// Moodle v2.5.0 release upgrade line.
// Put any upgrade step following this.
if ($oldversion < 2013071000) {
// Define table forum_digests to be created.
$table = new xmldb_table('forum_digests');
// Adding fields to table forum_digests.
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
$table->add_field('forum', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, null);
$table->add_field('maildigest', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '-1');
// Adding keys to table forum_digests.
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('userid', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
$table->add_key('forum', XMLDB_KEY_FOREIGN, array('forum'), 'forum', array('id'));
$table->add_key('forumdigest', XMLDB_KEY_UNIQUE, array('forum', 'userid', 'maildigest'));
// Conditionally launch create table for forum_digests.
if (!$dbman->table_exists($table)) {
$dbman->create_table($table);
}
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2013071000, 'forum');
}
// Moodle v2.6.0 release upgrade line.
// Put any upgrade step following this.
if ($oldversion < 2014040400) {
// Define index userid-postid (not unique) to be dropped form forum_read.
$table = new xmldb_table('forum_read');
$index = new xmldb_index('userid-postid', XMLDB_INDEX_NOTUNIQUE, array('userid', 'postid'));
// Conditionally launch drop index userid-postid.
if ($dbman->index_exists($table, $index)) {
$dbman->drop_index($table, $index);
}
// Define index postid-userid (not unique) to be added to forum_read.
$index = new xmldb_index('postid-userid', XMLDB_INDEX_NOTUNIQUE, array('postid', 'userid'));
// Conditionally launch add index postid-userid.
if (!$dbman->index_exists($table, $index)) {
$dbman->add_index($table, $index);
}
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2014040400, 'forum');
}
// Moodle v2.7.0 release upgrade line.
// Put any upgrade step following this.
if ($oldversion < 2014051201) {
// Incorrect values that need to be replaced.
$replacements = array(
11 => 20,
12 => 50,
13 => 100
);
// Run the replacements.
foreach ($replacements as $old => $new) {
$DB->set_field('forum', 'maxattachments', $new, array('maxattachments' => $old));
}
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2014051201, 'forum');
}
if ($oldversion < 2014051203) {
// Find records with multiple userid/postid combinations and find the lowest ID.
// Later we will remove all those which don't match this ID.
$sql = "
SELECT MIN(id) as lowid, userid, postid
FROM {forum_read}
GROUP BY userid, postid
HAVING COUNT(id) > 1";
if ($duplicatedrows = $DB->get_recordset_sql($sql)) {
foreach ($duplicatedrows as $row) {
$DB->delete_records_select('forum_read', 'userid = ? AND postid = ? AND id <> ?', array(
$row->userid,
$row->postid,
$row->lowid,
));
}
}
$duplicatedrows->close();
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2014051203, 'forum');
}
if ($oldversion < 2014051204) {
// Groupid = 0 is never valid.
$DB->set_field('forum_discussions', 'groupid', -1, array('groupid' => 0));
// Forum savepoint reached.
upgrade_mod_savepoint(true, 2014051204, 'forum');
}
return true;
}