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<?php
// This file keeps track of upgrades to
// the glossary 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_glossary_upgrade($oldversion) {
global $DB;
// Automatically generated Moodle v3.5.0 release upgrade line.
// Put any upgrade step following this.
if ($oldversion < 2018051401) {
// Fetch the module ID for the glossary module.
$glossarymoduleid = $DB->get_field('modules', 'id', ['name' => 'glossary']);
// Get id of section 1 on the frontpage course.
$fpsection1 = $DB->get_field('course_sections', 'id', ['course' => SITEID, 'section' => 1]);
// Fetch sections for the frontpage not matching 1.
$sectionselect = 'course = :course AND section <> 1';
$sitesections = $DB->get_recordset_select('course_sections', $sectionselect, ['course' => SITEID]);
$newsection1cmids = [];
foreach ($sitesections as $section) {
// Check if we have anything to process for this section.
if (empty($section->sequence)) {
// If there's none, ignore.
continue;
}
// Fetch the course module IDs of the course modules in the section.
$cmids = explode(',', $section->sequence);
$nonglossarycmids = [];
// Update the section in the course_modules table for glossary instances if necessary.
foreach ($cmids as $cmid) {
$params = [
'id' => $cmid,
'module' => $glossarymoduleid
];
// Check if the record in the course_modules tables is that of a glossary activity.
if ($DB->record_exists('course_modules', $params)) {
// If so, move it to front page's section 1.
$DB->set_field('course_modules', 'section', $fpsection1, $params);
$newsection1cmids[] = $cmid;
} else {
// Otherwise, ignore this course module as we only want to update glossary items.
$nonglossarycmids[] = $cmid;
}
}
// Check if we need to update the section record or we can delete it.
if (!empty($nonglossarycmids)) {
// Update the section record with a sequence that now excludes the glossary instance(s) (if it changed).
$sequence = implode(',', $nonglossarycmids);
if ($sequence != $section->sequence) {
$DB->set_field('course_sections', 'sequence', $sequence, ['id' => $section->id]);
}
} else {
// This section doesn't contain any items anymore, we can remove this.
$DB->delete_records('course_sections', ['id' => $section->id]);
}
}
$sitesections->close();
// Update the sequence field for the site's section 1 if necessary.
if (!empty($newsection1cmids)) {
$section1params = [
'course' => SITEID,
'section' => 1
];
$section1sequence = $DB->get_field('course_sections', 'sequence', $section1params);
$newsection1sequence = implode(',', array_merge([$section1sequence], $newsection1cmids));
// Update the sequence field of the first section for the front page.
$DB->set_field('course_sections', 'sequence', $newsection1sequence, $section1params);
}
upgrade_mod_savepoint(true, 2018051401, 'glossary');
}
// Automatically generated Moodle v3.6.0 release upgrade line.
// Put any upgrade step following this.
// Automatically generated Moodle v3.7.0 release upgrade line.
// Put any upgrade step following this.
// Automatically generated Moodle v3.8.0 release upgrade line.
// Put any upgrade step following this.
// Automatically generated Moodle v3.9.0 release upgrade line.
// Put any upgrade step following this.
return true;
}