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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/>.
namespace core_admin\table;
use html_writer;
use moodle_url;
use stdClass;
/**
* Tiny admin settings.
*
* @package core_admin
* @copyright 2023 Andrew Lyons <andrew@nicols.co.uk>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class block_management_table extends \core_admin\table\plugin_management_table {
/** @var plugininfo[] A list of blocks which cannot be deleted */
protected array $undeletableblocktypes;
/** @var stdClass[] A list of basic block data */
protected array $blockdata;
/** @var array<string,int> A list of course counts */
protected array $courseblocks;
public function __construct() {
global $DB;
parent::__construct();
$this->undeletableblocktypes = \block_manager::get_undeletable_block_types();
$sql = 'SELECT b.name,
b.id,
COUNT(DISTINCT binst.id) as totalcount
FROM {block} b
LEFT JOIN {block_instances} binst ON binst.blockname = b.name
GROUP BY b.id,
b.name
ORDER BY b.name ASC';
$this->blockdata = $DB->get_records_sql($sql);
$sql = "SELECT blockname
FROM {block_instances}
WHERE pagetypepattern = 'course-view-*'
GROUP BY blockname";
$this->courseblocks = $DB->get_records_sql($sql);
}
protected function get_plugintype(): string {
return 'block';
}
public function guess_base_url(): void {
$this->define_baseurl(
new moodle_url('/admin/blocks.php')
);
}
protected function get_action_url(array $params = []): moodle_url {
return new moodle_url('/admin/blocks.php', $params);
}
protected function get_table_js_module(): string {
return 'core_admin/block_management_table';
}
protected function get_column_list(): array {
$columns = parent::get_column_list();
return array_merge(
array_slice($columns, 0, 1, true),
['instances' => get_string('blockinstances', 'admin')],
array_slice($columns, 1, 2, true),
['protect' => get_string('blockprotect', 'admin')],
array_slice($columns, 3, null, true),
);
}
protected function get_columns_with_help(): array {
return [
'protect' => new \help_icon('blockprotect', 'admin'),
];
}
/**
* Render the instances column
* @param stdClass $row
* @return string
*/
protected function col_instances(stdClass $row): string {
$blockdata = $this->blockdata[$row->plugininfo->name];
if (array_key_exists($blockdata->name, $this->courseblocks)) {
return html_writer::link(
new moodle_url('/course/search.php', [
'blocklist' => $blockdata->id,
]),
$blockdata->totalcount,
);
}
return $blockdata->totalcount;
}
/**
* Render the protect column.
*
* @param stdClass $row
* @return string
*/
protected function col_protect(stdClass $row): string {
global $OUTPUT;
$params = [
'sesskey' => sesskey(),
];
$protected = in_array($row->plugininfo->name, $this->undeletableblocktypes);
$pluginname = $row->plugininfo->displayname;
if ($protected) {
$params['unprotect'] = $row->plugininfo->name;
$icon = $OUTPUT->pix_icon('t/unlock', get_string('blockunprotectblock', 'admin', $pluginname));
} else {
$params['protect'] = $row->plugininfo->name;
$icon = $OUTPUT->pix_icon('t/lock', get_string('blockprotectblock', 'admin', $pluginname));
}
return html_writer::link(
$this->get_action_url($params),
$icon,
[
'data-action' => 'toggleprotectstate',
'data-plugin' => $row->plugin,
'data-target-state' => $protected ? 0 : 1,
],
);
return '';
}
}