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MDL-63785 core_webservice: performance improvement

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This commit is contained in:
Shamim Rezaie
2018-12-10 14:52:13 +11:00
parent 66e15651fe
commit 29d0db89eb
1 changed files with 12 additions and 28 deletions
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webservice/classes/privacy/provider.php
+12 -28
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@@ -115,39 +115,23 @@ class provider implements
* @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;
$context = $userlist->get_context();
$params = [
'contextid' => $context->id,
'contextuser' => CONTEXT_USER,
];
if (!$context instanceof \context_user) {
return;
}
$sql = "SELECT ctx.instanceid as userid
FROM {external_tokens} t
JOIN {context} ctx
ON ctx.instanceid = t.userid
AND ctx.contextlevel = :contextuser
WHERE ctx.id = :contextid";
$userid = $context->instanceid;
$userlist->add_from_sql('userid', $sql, $params);
$hasdata = false;
$hasdata = $hasdata || $DB->record_exists_select('external_tokens', 'userid = ? OR creatorid = ?', [$userid, $userid]);
$hasdata = $hasdata || $DB->record_exists('external_services_users', ['userid' => $userid]);
$sql = "SELECT ctx.instanceid as userid
FROM {external_tokens} t
JOIN {context} ctx
ON ctx.instanceid = t.creatorid
AND ctx.contextlevel = :contextuser
WHERE ctx.id = :contextid";
$userlist->add_from_sql('userid', $sql, $params);
$sql = "SELECT ctx.instanceid as userid
FROM {external_services_users} su
JOIN {context} ctx
ON ctx.instanceid = su.userid
AND ctx.contextlevel = :contextuser
WHERE ctx.id = :contextid";
$userlist->add_from_sql('userid', $sql, $params);
if ($hasdata) {
$userlist->add_user($userid);
}
}
/**