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📄 consumer_provider.php(2.51 KB)
📄 paygw_provider.php(1.47 KB)
📄 provider.php(12.72 KB)

Editing: provider.php

<?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/>.

/**
 * Privacy Subsystem implementation for core_payment.
 *
 * @package    core_payment
 * @category   privacy
 * @copyright  2020 Shamim Rezaie <shamim@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

namespace core_payment\privacy;

use core_privacy\local\metadata\collection;
use core_privacy\local\request\approved_contextlist;
use core_privacy\local\request\approved_userlist;
use core_privacy\local\request\contextlist;
use core_privacy\local\request\transform;
use core_privacy\local\request\userlist;
use core_privacy\local\request\writer;
use core_payment\helper as payment_helper;

/**
 * Privacy Subsystem implementation for core_payment.
 *
 * @copyright  2020 Shamim Rezaie <shamim@moodle.com>
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class provider implements
    // This component has data.
    // We need to return all payment information where the user is
    // listed in the payment.userid field.
    // We may also need to fetch this informtion from individual plugins in some cases.
    // e.g. to fetch the full and other gateway-specific meta-data.
    \core_privacy\local\metadata\provider,

// This is a subsysytem which provides information to core.
    \core_privacy\local\request\subsystem\provider,

// This is a subsysytem which provides information to plugins.
    \core_privacy\local\request\subsystem\plugin_provider,

// This plugin is capable of determining which users have data within it.
    \core_privacy\local\request\core_userlist_provider,

// This plugin is capable of determining which users have data within it for the plugins it provides data to.
    \core_privacy\local\request\shared_userlist_provider
{

/**
     * Returns meta data about this system.
     *
     * @param   collection $collection The initialised collection to add items to.
     * @return  collection A listing of user data stored through this system.
     */
    public static function get_metadata(collection $collection): collection {
        // The 'payments' table contains data about payments.
        $collection->add_database_table('payments', [
            'userid'       => 'privacy:metadata:database:payments:userid',
            'amount'       => 'privacy:metadata:database:payments:amount',
            'currency'     => 'privacy:metadata:database:payments:currency',
            'gateway'      => 'privacy:metadata:database:payments:gateway',
            'timecreated'  => 'privacy:metadata:database:payments:timecreated',
            'timemodified' => 'privacy:metadata:database:payments:timemodified',
        ], 'privacy:metadata:database:payments');

return $collection;
    }

/**
     * Get the list of users who have data within a context.
     *
     * @param   int $userid The user to search.
     * @return  contextlist The contextlist containing the list of contexts used in this plugin.
     */
    public static function get_contexts_for_userid(int $userid): contextlist {
        global $DB;

$contextids = [];
        $payments = $DB->get_recordset('payments', ['userid' => $userid]);
        foreach ($payments as $payment) {
            $contextids[] = \core_privacy\manager::component_class_callback(
                $payment->component,
                consumer_provider::class,
                'get_contextid_for_payment',
                [$payment->paymentarea, $payment->itemid]
            ) ?: SYSCONTEXTID;
        }
        $payments->close();

$contextlist = new contextlist();

if (!empty($contextids)) {
            [$insql, $inparams] = $DB->get_in_or_equal(array_unique($contextids), SQL_PARAMS_NAMED);
            $contextlist->add_from_sql("SELECT id FROM {context} WHERE id {$insql}", $inparams);
        }

return $contextlist;
    }

/**
     * Get the list of users who have data within a context.
     *
     * @param   userlist    $userlist   The userlist containing the list of users who have data in this context/plugin combination.
     */
    public static function get_users_in_context(userlist $userlist) {
        global $DB;