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Issue #78: Implemented full privacy provider #95

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Issue #78: Implemented full privacy provider #95

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52 changes: 49 additions & 3 deletions classes/privacy/provider.php
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Original file line number Diff line number Diff line change
Expand Up @@ -27,14 +27,15 @@
use core_privacy\local\metadata\collection;
use core_privacy\local\request\approved_contextlist;
use core_privacy\local\request\contextlist;
use core_privacy\local\request\deletion_criteria;
use core_privacy\local\request\helper;
use core_privacy\local\request\userlist;
use core_privacy\local\request\approved_userlist;
use core_privacy\local\request\writer;

class provider implements
// This plugin stores personal data.
\core_privacy\local\metadata\provider,
\core_privacy\local\request\plugin\provider {
\core_privacy\local\request\plugin\provider,
\core_privacy\local\request\core_userlist_provider {

// This trait must be included to provide the relevant polyfill for the metadata provider.
// All required methods must start with an underscore.
Expand Down Expand Up @@ -246,4 +247,49 @@ public static function _delete_data_for_user(approved_contextlist $contextlist)
$records->close();
}
}

/**
* Get the list of users within a specific context.
* @param userlist $userlist The userlist containing the list of users who have data in this context/plugin combination.
* @return void
*/
public static function get_users_in_context(userlist $userlist) {
global $CFG;
$context = $userlist->get_context();
if(!$context instanceof \context_user) {
return;
}

$params = ['contextid' => $context->instanceid];
$sql = "SELECT q.createdby userid
FROM {question_categories} qc";

if ($CFG->version >= 2022041900) {
$sql .= " INNER JOIN {question_bank_entries} qbe ON qbe.questioncategoryid = qc.id
INNER JOIN {question_versions} qv ON qv.questionbankentryid = qbe.id
INNER JOIN {question} q ON q.id = qv.questionid
INNER JOIN {qtype_wq} wq ON q.id = wq.question";
} else {
$sql .= " INNER JOIN {question} q ON qc.id = q.category
INNER JOIN {qtype_wq} wq ON q.id = wq.question";
}

$sql .= " WHERE qc.contextid = :contextid ";
$userlist->add_from_sql('userid', $sql, $params);

}

/**
* Delete multiple users within a single context.
* @param approved_userlist $userlist The approved context and user information to delete information for.
* @return void
*/
public static function delete_data_for_users(approved_userlist $userlist) {
$context = $userlist->get_context();

if ($context instanceof \context_user) {
static::_delete_data_for_user($context->instanceid);
}
}
}