Andrew Nicols
64 lines
1.9 KiB
PHP
64 lines
1.9 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace core_ai\cache;
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use cache_definition;
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/**
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* Cache class for AI policy.
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*
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* @package core_ai
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* @copyright 2024 Matt Porritt <matt.porritt@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class policy implements \cache_data_source {
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/** @var policy|null the singleton instance of this class. */
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protected static ?policy $instance = null;
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#[\Override]
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public static function get_instance_for_cache(cache_definition $definition): policy {
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if (is_null(self::$instance)) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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#[\Override]
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public function load_for_cache($key) {
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global $DB;
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return $DB->record_exists('ai_policy_register', ['userid' => $key]);
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}
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#[\Override]
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public function load_many_for_cache(array $keys): array {
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global $DB;
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$return = [];
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[$insql, $inparams] = $DB->get_in_or_equal($keys);
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$sql = "SELECT userid
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FROM {ai_policy_register}
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WHERE userid " . $insql;
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$results = $DB->get_fieldset_sql($sql, $inparams);
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foreach ($keys as $key) {
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$return[$key] = in_array($key, $results);
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}
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return $return;
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}
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}
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