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| 1 | <?php |
| 2 | // This file is part of Moodle - https://moodle.org/ |
| 3 | // |
| 4 | // Moodle is free software: you can redistribute it and/or modify |
| 5 | // it under the terms of the GNU General Public License as published by |
| 6 | // the Free Software Foundation, either version 3 of the License, or |
| 7 | // (at your option) any later version. |
| 8 | // |
| 9 | // Moodle is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with Moodle. If not, see <https://www.gnu.org/licenses/>. |
| 16 | |
| 17 | namespace local_recertify\privacy; |
| 18 | |
| 19 | use context; |
| 20 | use context_course; |
| 21 | use core_privacy\local\metadata\collection; |
| 22 | use core_privacy\local\request\approved_contextlist; |
| 23 | use core_privacy\local\request\approved_userlist; |
| 24 | use core_privacy\local\request\contextlist; |
| 25 | use core_privacy\local\request\transform; |
| 26 | use core_privacy\local\request\userlist; |
| 27 | use core_privacy\local\request\writer; |
| 28 | |
| 29 | /** |
| 30 | * Privacy provider: archived certifications and the reminders sent. |
| 31 | * |
| 32 | * @package local_recertify |
| 33 | * @copyright 2026 DevLMS <contact@devlms.com> |
| 34 | * @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| 35 | */ |
| 36 | final class provider implements |
| 37 | \core_privacy\local\metadata\provider, |
| 38 | \core_privacy\local\request\core_userlist_provider, |
| 39 | \core_privacy\local\request\plugin\provider { |
| 40 | /** @var string[] Tables with a courseid and a userid. */ |
| 41 | private const TABLES = ['local_recertify_history', 'local_recertify_notice']; |
| 42 | |
| 43 | /** |
| 44 | * Describe the personal data stored. |
| 45 | * |
| 46 | * @param collection $collection |
| 47 | * @return collection |
| 48 | */ |
| 49 | public static function get_metadata(collection $collection): collection { |
| 50 | $collection->add_database_table('local_recertify_history', [ |
| 51 | 'userid' => 'privacy:metadata:history:userid', |
| 52 | 'timecompleted' => 'privacy:metadata:history:timecompleted', |
| 53 | 'timeexpired' => 'privacy:metadata:history:timeexpired', |
| 54 | 'finalgrade' => 'privacy:metadata:history:finalgrade', |
| 55 | 'archive' => 'privacy:metadata:history:archive', |
| 56 | ], 'privacy:metadata:history'); |
| 57 | $collection->add_database_table('local_recertify_notice', [ |
| 58 | 'userid' => 'privacy:metadata:notice:userid', |
| 59 | 'daysbefore' => 'privacy:metadata:notice:daysbefore', |
| 60 | 'timesent' => 'privacy:metadata:notice:timesent', |
| 61 | ], 'privacy:metadata:notice'); |
| 62 | $collection->add_subsystem_link('core_message', [], 'privacy:metadata:core_message'); |
| 63 | return $collection; |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Courses where the user has history or reminders. |
| 68 | * |
| 69 | * @param int $userid |
| 70 | * @return contextlist |
| 71 | */ |
| 72 | public static function get_contexts_for_userid(int $userid): contextlist { |
| 73 | $list = new contextlist(); |
| 74 | foreach (self::TABLES as $table) { |
| 75 | $list->add_from_sql("SELECT ctx.id |
| 76 | FROM {context} ctx |
| 77 | JOIN {{$table}} t ON t.courseid = ctx.instanceid AND ctx.contextlevel = :level |
| 78 | WHERE t.userid = :userid", ['level' => CONTEXT_COURSE, 'userid' => $userid]); |
| 79 | } |
| 80 | return $list; |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Users with data in a course. |
| 85 | * |
| 86 | * @param userlist $userlist |
| 87 | */ |
| 88 | public static function get_users_in_context(userlist $userlist) { |
| 89 | $context = $userlist->get_context(); |
| 90 | if (!$context instanceof context_course) { |
| 91 | return; |
| 92 | } |
| 93 | foreach (self::TABLES as $table) { |
| 94 | $userlist->add_from_sql( |
| 95 | 'userid', |
| 96 | "SELECT userid FROM {{$table}} WHERE courseid = :courseid", |
| 97 | ['courseid' => $context->instanceid] |
| 98 | ); |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Export certifications and reminders, one file per course. |
| 104 | * |
| 105 | * @param approved_contextlist $contextlist |
| 106 | */ |
| 107 | public static function export_user_data(approved_contextlist $contextlist) { |
| 108 | global $DB; |
| 109 | $userid = $contextlist->get_user()->id; |
| 110 | foreach ($contextlist->get_contexts() as $context) { |
| 111 | if (!$context instanceof context_course) { |
| 112 | continue; |
| 113 | } |
| 114 | $params = ['courseid' => $context->instanceid, 'userid' => $userid]; |
| 115 | $certifications = array_map(fn($h) => (object) [ |
| 116 | 'timecompleted' => transform::datetime($h->timecompleted), |
| 117 | 'timeexpired' => transform::datetime($h->timeexpired), |
| 118 | 'finalgrade' => $h->finalgrade === null ? null : (float) $h->finalgrade, |
| 119 | 'archive' => json_decode($h->archive), |
| 120 | ], array_values($DB->get_records('local_recertify_history', $params, 'timecompleted'))); |
| 121 | $reminders = array_map(fn($n) => (object) [ |
| 122 | 'daysbefore' => (int) $n->daysbefore, |
| 123 | 'timesent' => transform::datetime($n->timesent), |
| 124 | ], array_values($DB->get_records('local_recertify_notice', $params, 'timesent'))); |
| 125 | writer::with_context($context)->export_data( |
| 126 | [get_string('pluginname', 'local_recertify')], |
| 127 | (object) ['certifications' => $certifications, 'reminders' => $reminders] |
| 128 | ); |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Delete everything in a course. |
| 134 | * |
| 135 | * @param context $context |
| 136 | */ |
| 137 | public static function delete_data_for_all_users_in_context(context $context) { |
| 138 | global $DB; |
| 139 | if ($context instanceof context_course) { |
| 140 | foreach (self::TABLES as $table) { |
| 141 | $DB->delete_records($table, ['courseid' => $context->instanceid]); |
| 142 | } |
| 143 | } |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Delete one user's data in the approved courses. |
| 148 | * |
| 149 | * @param approved_contextlist $contextlist |
| 150 | */ |
| 151 | public static function delete_data_for_user(approved_contextlist $contextlist) { |
| 152 | global $DB; |
| 153 | foreach ($contextlist->get_contexts() as $context) { |
| 154 | if ($context instanceof context_course) { |
| 155 | foreach (self::TABLES as $table) { |
| 156 | $DB->delete_records($table, ['courseid' => $context->instanceid, 'userid' => $contextlist->get_user()->id]); |
| 157 | } |
| 158 | } |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Delete several users' data in one course. |
| 164 | * |
| 165 | * @param approved_userlist $userlist |
| 166 | */ |
| 167 | public static function delete_data_for_users(approved_userlist $userlist) { |
| 168 | global $DB; |
| 169 | $context = $userlist->get_context(); |
| 170 | if (!$context instanceof context_course || !$userlist->get_userids()) { |
| 171 | return; |
| 172 | } |
| 173 | [$insql, $params] = $DB->get_in_or_equal($userlist->get_userids(), SQL_PARAMS_NAMED); |
| 174 | $params['courseid'] = $context->instanceid; |
| 175 | foreach (self::TABLES as $table) { |
| 176 | $DB->delete_records_select($table, "courseid = :courseid AND userid $insql", $params); |
| 177 | } |
| 178 | } |
| 179 | } |