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MDL-63497 mod_feedback: Add support for removal of context users

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This issue is a part of the MDL-62560 Epic.
This commit is contained in:
Michael Hawkins 2018-10-01 14:46:07 +08:00 • committed by David Monllao
parent 55d1ef377c
commit e917288971
2 changed files with 214 additions and 0 deletions
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77
mod/feedback/classes/privacy/provider.php
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@ -31,9 +31,11 @@ use context_helper;
use stdClass;
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\helper;
use core_privacy\local\request\transform;
use core_privacy\local\request\userlist;
use core_privacy\local\request\writer;
require_once($CFG->dirroot . '/mod/feedback/lib.php');
@ -48,6 +50,7 @@ require_once($CFG->dirroot . '/mod/feedback/lib.php');
*/
class provider implements
\core_privacy\local\metadata\provider,
\core_privacy\local\request\core_userlist_provider,
\core_privacy\local\request\plugin\provider {
/**
@ -102,6 +105,38 @@ class provider implements
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) {
$context = $userlist->get_context();
if (!is_a($context, \context_module::class)) {
return;
}
// Find users with feedback entries.
$sql = "
SELECT fc.userid
FROM {%s} fc
JOIN {modules} m
ON m.name = :feedback
JOIN {course_modules} cm
ON cm.instance = fc.feedback
AND cm.module = m.id
JOIN {context} ctx
ON ctx.instanceid = cm.id
AND ctx.contextlevel = :modlevel
WHERE ctx.id = :contextid";
$params = ['feedback' => 'feedback', 'modlevel' => CONTEXT_MODULE, 'contextid' => $context->id];
$userlist->add_from_sql('userid', sprintf($sql, 'feedback_completed'), $params);
$userlist->add_from_sql('userid', sprintf($sql, 'feedback_completedtmp'), $params);
}
/**
* Export all user data for the specified user, in the specified contexts.
*
@ -272,6 +307,48 @@ class provider implements
}
}
/**
* 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();
$userids = $userlist->get_userids();
// Prepare SQL to gather all completed IDs.
list($insql, $inparams) = $DB->get_in_or_equal($userids, SQL_PARAMS_NAMED);
$completedsql = "
SELECT fc.id
FROM {%s} fc
JOIN {modules} m
ON m.name = :feedback
JOIN {course_modules} cm
ON cm.instance = fc.feedback
AND cm.module = m.id
WHERE cm.id = :instanceid
AND fc.userid $insql";
$completedparams = array_merge($inparams, ['instanceid' => $context->instanceid, 'feedback' => 'feedback']);
// Delete all submissions in progress.
$completedtmpids = $DB->get_fieldset_sql(sprintf($completedsql, 'feedback_completedtmp'), $completedparams);
if (!empty($completedtmpids)) {
list($insql, $inparams) = $DB->get_in_or_equal($completedtmpids, SQL_PARAMS_NAMED);
$DB->delete_records_select('feedback_valuetmp', "completed $insql", $inparams);
$DB->delete_records_select('feedback_completedtmp', "id $insql", $inparams);
}
// Delete all final submissions.
$completedids = $DB->get_fieldset_sql(sprintf($completedsql, 'feedback_completed'), $completedparams);
if (!empty($completedids)) {
list($insql, $inparams) = $DB->get_in_or_equal($completedids, SQL_PARAMS_NAMED);
$DB->delete_records_select('feedback_value', "completed $insql", $inparams);
$DB->delete_records_select('feedback_completed', "id $insql", $inparams);
}
}
/**
* Extract an item record from a database record.
*