292 lines
12 KiB
PHP
292 lines
12 KiB
PHP
<?php
|
|
// This file is part of the Studyplan plugin for Moodle
|
|
//
|
|
// 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 <https://www.gnu.org/licenses/>.
|
|
/**
|
|
*
|
|
* @package local_treestudyplan
|
|
* @copyright 2023 P.M. Kuipers
|
|
* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
namespace local_treestudyplan\privacy;
|
|
|
|
use core_privacy\local\metadata\collection;
|
|
use \core_privacy\local\request\userlist;
|
|
use core_privacy\local\request\contextlist;
|
|
use \core_privacy\local\request\approved_contextlist;
|
|
use \core_privacy\local\request\approved_userlist;
|
|
use \core_privacy\local\request\deletion_criteria;
|
|
use \core_privacy\local\request\writer;
|
|
use \core_privacy\local\request\helper;
|
|
use \core_privacy\local\request\transform;
|
|
use tool_dataprivacy\context_instance;
|
|
|
|
class provider implements \core_privacy\local\metadata\provider,
|
|
\core_privacy\local\request\plugin\provider,
|
|
\core_privacy\local\request\core_userlist_provider {
|
|
/**
|
|
* Get the language string identifier with the component's language
|
|
* file to explain why this plugin stores no data.
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function get_reason(): string {
|
|
return 'privacy:metadata';
|
|
}
|
|
|
|
public static function get_metadata(collection $collection): collection {
|
|
|
|
$collection->add_database_table(
|
|
'local_treestudyplan_invit',
|
|
[
|
|
'user_id' => 'privacy:metadata:invit:user_id',
|
|
'name' => 'privacy:metadata:invit:name',
|
|
'email' => 'privacy:metadata:invit:email',
|
|
'date' => 'privacy:metadata:invit:date',
|
|
],
|
|
'privacy:metadata:invit'
|
|
);
|
|
$collection->add_database_table(
|
|
'local_treestudyplan_user',
|
|
[
|
|
'user_id' => 'privacy:metadata:user:user_id',
|
|
'studyplan_id' => 'privacy:metadata:user:studyplan_id',
|
|
],
|
|
'privacy:metadata:user'
|
|
);
|
|
return $collection;
|
|
}
|
|
|
|
/**
|
|
* Get the list of contexts that contain user information for the specified user.
|
|
*
|
|
* @param int $userid The user to search.
|
|
* @return contextlist $contextlist The contextlist containing the list of contexts used in this plugin.
|
|
*/
|
|
public static function get_contexts_for_userid(int $userid) : contextlist {
|
|
$contextlist = new \core_privacy\local\request\contextlist();
|
|
$contextlist->add_system_context(); // For invitations.
|
|
|
|
// Add contexts for linked studyplans.
|
|
$sql = "SELECT s.context_id FROM {local_treestudyplan} s
|
|
INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
|
|
WHERE ( a.user_id = :userid )
|
|
";
|
|
$contextlist->add_from_sql($sql, ['userid' => $userid]);
|
|
|
|
return $contextlist;
|
|
}
|
|
|
|
/**
|
|
* Export all user data for the specified user, in the specified contexts.
|
|
*
|
|
* @param approved_contextlist $contextlist The approved contexts to export information for.
|
|
*/
|
|
public static function export_user_data(approved_contextlist $contextlist) {
|
|
global $DB;
|
|
|
|
foreach ($contextlist->get_contexts() as $context) {
|
|
$user = $contextlist->get_user();
|
|
|
|
if ($context instanceof \context_system) {
|
|
// Export invitations.
|
|
$sql = "SELECT * FROM {local_treestudyplan_invit} i
|
|
WHERE ( aiuser_id = :userid )
|
|
";
|
|
$records = $DB->get_records_sql($sql, ["userid" => $user->id]);
|
|
foreach ($records as $r) {
|
|
static::export_invitation_data_for_user($r);
|
|
}
|
|
|
|
// Export empty associations.
|
|
$sql = "SELECT * FROM {local_treestudyplan} s
|
|
INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
|
|
WHERE ( a.user_id = :userid AND (s.context_id IS NULL or s.context_id = 0)
|
|
";
|
|
$records = $DB->get_records_sql($sql, ["userid" => $user->id, "contextid" => $context->id]);
|
|
foreach ($records as $r) {
|
|
static::export_studyplan_data_for_user($r);
|
|
}
|
|
} else if ($context->contextlevel == CONTEXT_COURSECAT) {
|
|
// Export studyplan associations.
|
|
$sql = "SELECT * FROM {local_treestudyplan} s
|
|
INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
|
|
WHERE ( a.user_id = :userid AND s.context_id = :contextid)";
|
|
$records = $DB->get_records_sql($sql, ["userid" => $user->id, "contextid" => $context->id]);
|
|
foreach ($records as $r) {
|
|
static::export_studyplan_data_for_user($r);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export the supplied personal data for an invitation.
|
|
*
|
|
* @param $invit The invitation record.
|
|
*/
|
|
protected static function export_invitation_data_for_user($invit) {
|
|
$context = \context_system::instance();
|
|
$subcontext = ["invitations"];
|
|
|
|
writer::with_context($context)
|
|
->export_data($subcontext, (object)["recipient" => $invit->name, "email" => $invit->email]);
|
|
|
|
}
|
|
|
|
/**
|
|
* Export the supplied personal data for an invitation.
|
|
*
|
|
* @param $invit The invitation record.
|
|
*/
|
|
protected static function export_studyplan_data_for_user($studyplan) {
|
|
$context = \context_system::instance();
|
|
$subcontext = ["studyplans"];
|
|
|
|
writer::with_context($context)
|
|
->export_data($subcontext, (object)["fullname" => $studyplan->fullname, "shortname" => $studyplan->shortname]);
|
|
|
|
}
|
|
|
|
/**
|
|
* Delete all data for all users in the specified context.
|
|
* Used when a context is past it's data retention period
|
|
*
|
|
* @param context $context The specific context to delete data for.
|
|
*/
|
|
public static function delete_data_for_all_users_in_context(\context $context) {
|
|
global $DB;
|
|
// Find studyplans in context.
|
|
if ($context->contextlevel == CONTEXT_COURSECAT) {
|
|
$sql = "SELECT s.id FROM {local_treestudyplan} WHERE ( a.user_id = :userid AND s.context_id = :contextid)";
|
|
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id]);
|
|
|
|
foreach ($planids as $planid) {
|
|
$DB->delete_records("local_treestudyplan_user", ["studyplan_id" => $planid]);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Delete all user data for the specified user, in the specified contexts.
|
|
*
|
|
* @param approved_contextlist $contextlist The approved contexts and user information to delete information for.
|
|
*/
|
|
public static function delete_data_for_user(approved_contextlist $contextlist) {
|
|
global $DB;
|
|
$user = $contextlist->get_user();
|
|
|
|
foreach ($contextlist->get_contexts() as $context) {
|
|
|
|
if ($context->contextlevel == CONTEXT_SYSTEM) {
|
|
$sql = "SELECT s.id FROM {local_treestudyplan}
|
|
INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
|
|
WHERE ( a.user_id = :userid
|
|
AND ( s.context_id IS NULL OR s.context_id == 0 OR s.context_id = :contextid))";
|
|
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id, "userid" => $user->id]);
|
|
|
|
foreach ($planids as $planid) {
|
|
$DB->delete_records("local_treestudyplan_user", ["studyplan_id" => $planid, "user_id" => $user->id]);
|
|
}
|
|
|
|
// Also delete all invitations for this user.
|
|
$DB->delete_records("local_treestudyplan_invit", ["user_id" => $user->id]);
|
|
|
|
} else if ($context->contextlevel == CONTEXT_COURSECAT) {
|
|
$sql = "SELECT s.id FROM {local_treestudyplan} INNER JOIN {local_treestudyplan_user} a ON a.studyplan_id = s.id
|
|
WHERE ( a.user_id = :userid AND s.context_id = :contextid)";
|
|
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id, "userid" => $user->id]);
|
|
|
|
foreach ($planids as $planid) {
|
|
$DB->delete_records("local_treestudyplan_user", ["studyplan_id" => $planid, "user_id" => $user->id]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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) {
|
|
$context = $userlist->get_context();
|
|
|
|
if ($context instanceof \context_system) {
|
|
// Add all invitations.
|
|
$sql = "SELECT i.user_id as userid
|
|
FROM {local_treestudyplan_invit} i;";
|
|
$userlist->add_from_sql('userid', $sql, []);
|
|
|
|
// Also add "contextless studyplans, they are considered in system context".
|
|
$sql = "SELECT a.user_id as userid FROM {local_treestudyplan_user} a
|
|
INNER JOIN {local_treestudyplan} s ON a.studyplan_id = s.id
|
|
WHERE ( a.context_id is NULL or a.context_id = 0)
|
|
";
|
|
$userlist->add_from_sql('userid', $sql, []);
|
|
|
|
}
|
|
|
|
// Add the links to all study plans in this context.
|
|
$sql = "SELECT a.user_id as userid FROM {local_treestudyplan_user} a
|
|
INNER JOIN {local_treestudyplan} s ON a.studyplan_id = s.id
|
|
WHERE ( a.context_id = :contextid )
|
|
";
|
|
$userlist->add_from_sql('userid', $sql, ["contextid" => $context->id]);
|
|
|
|
}
|
|
|
|
/**
|
|
* Delete multiple users within a single context.
|
|
*
|
|
* @param approved_userlist $userlist The approved context and user information to delete information for.
|
|
*/
|
|
public static function delete_data_for_users(approved_userlist $userlist) {
|
|
global $DB;
|
|
|
|
$context = $userlist->get_context();
|
|
$users = $userlist->get_userids();
|
|
list($userinsql, $userinparams) = $DB->get_in_or_equal($users, SQL_PARAMS_NAMED, 'user');
|
|
|
|
$planids = [];
|
|
if ($context->contextlevel == CONTEXT_SYSTEM) {
|
|
// Determine the relevant plan_ids for this context.
|
|
$sql = "SELECT s.id FROM {local_treestudyplan}
|
|
WHERE ( s.context_id IS NULL OR s.context_id == 0 OR s.context_id = :contextid)) ";
|
|
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id, ]);
|
|
// If plan ids not empty, they will be processed later.
|
|
|
|
// Also delete all invitations for these users.
|
|
$sql = "user_id {$userinsql}";
|
|
$DB->delete_records_select("local_treestudyplan_invit", $sql, $userinparams);
|
|
|
|
} else if ($context->contextlevel == CONTEXT_COURSECAT) {
|
|
$sql = "SELECT s.id FROM {local_treestudyplan}
|
|
WHERE (s.context_id = :contextid)";
|
|
$planids = $DB->get_fieldset_sql($sql, ["contextid" => $context->id, ]);
|
|
// If plan ids not empty, they will be processed later.
|
|
}
|
|
|
|
// Now delete the studyplan associations if relevant.
|
|
if (count($planids) > 0 && count($users) > 0) {
|
|
|
|
list($planinsql, $planinputparams) = $DB->get_in_or_equal($planids, SQL_PARAMS_NAMED, 'plan');
|
|
$params = $userinparams + $planinputparams;
|
|
$sql = "user_id {$userinsql} and studyplan_id {$planinsql}";
|
|
$DB->delete_records_select('local_treestudyplan_user', $sql, $params);
|
|
}
|
|
}
|
|
|
|
}
|