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Your LimeSurvey version: 6.10.2
Own server or LimeSurvey hosting: own
Survey theme/template: own
==================

A survey can have entries in the plugin_setting table. Such an entry can have a survey ID entered in the `madel_id` column, the `key` column can have the value `is_local`, and the `value` column can have `true`. 
I created a local administrator role and assigned this role to a user. I created several surveys. Some surveys have the entries described above in the plugin_settings table.
I need the user with the local administrator role to have access only to surveys defined as `is_local`/`true`.
Of course I want to do this in the plugin, but I don't know how to modify Survey/search/criteria.
Or maybe I should connect somewhere else?

I now have a solution that simulates handling criteria in the plugin, but I would like it to be a plugin, without changing the original code.

class Survey extends LSActiveRecord implements PermissionInterface
{
…
public function search($options = [])
{
…
Yii::import('xxx_survey_search.LocalSurveyAccess', true);
$lsa = new LocalSurveyAccess();
$lsa->beforeSurveySearch($criteria);

class LocalSurveyAccess /*extends PluginBase*/
{
…
public function beforeSurveySearch(& $criteria)
{
…
$criteria->addInCondition('t.sid', array_map('intval', $localSurveys)); 

I kindly ask for help or advice on how to search for surveys with a custom parameter defined in the plugin_setting table.

This plugin event didn't exist

Have to work on it bugs.limesurvey.org/view.php?id=16459

This is exactly what I was looking for!

Need to add an event to the Survey class.

// Permission
$criteriaPerm = self::getPermissionCriteria();
$criteria->mergeWith($criteriaPerm, 'AND');

// the new event
// custom criteria from a plugin
$event = new PluginEvent('beforeSurveySearch');
$event->set('criteria', $criteria);
App()->getPluginManager()->dispatchEvent($event);
$returnedCriteria = $event->get('criteria');
if ($returnedCriteria instanceof LSDbCriteria) {
    $criteria = $returnedCriteria;
}
// Rest of the existing method code...

// $criteria->addCondition("t.blabla == 'blub'");
// ...

return $dataProvider;


===

class XXX extends PluginBase
{
    protected $storage = 'DbStorage';
    static protected $description = 'YYY';
    static protected $name = 'XXX';

public function init(): void
{
    $this->subscribe('beforeSurveySearch');
// ...

public function beforeSurveySearch(): void
{
    $criteria = $this->event->get('criteria');
    try {
        // whatever you need
        $criteria->addInCondition('t.sid', array_map('intval', $localSurveys));
    } catch (Exception $e) {
    // ...

Thank you very much!

github.com/LimeSurvey/LimeSurvey/pull/4269