Implementation of the backend for the OAuth2 clients management

common/models/OauthClientQuery.php

@@ -0,0 +1,34 @@
+<?php
+declare(strict_types=1);
+
+namespace common\models;
+
+use yii\db\ActiveQuery;
+use yii\db\Command;
+
+/**
+ * @see OauthClient
+ */
+class OauthClientQuery extends ActiveQuery {
+
+    private $showDeleted = false;
+
+    public function includeDeleted(): self {
+        $this->showDeleted = true;
+        return $this;
+    }
+
+    public function onlyDeleted(): self {
+        $this->showDeleted = true;
+        return $this->andWhere(['is_deleted' => true]);
+    }
+
+    public function createCommand($db = null): Command {
+        if ($this->showDeleted === false) {
+            $this->andWhere(['is_deleted' => false]);
+        }
+
+        return parent::createCommand($db);
+    }
+
+}