/**
     * @return \yii\db\ActiveQuery
     */
    public function getUsers()
    {
        return $this->hasMany(User::className(), ['landing_id' => 'id'])->viaTable('{{%landing_has_user}}', ['landing_id' => 'id']);
    }

    /**
     * Сохранение пользователей
     * @param $usersIDs
     */
    public function setUsers($usersIDs)
    {
        $userModels = User::findCollection($usersIDs)->all();

        foreach ($userModels as $userModel)
            $this->link('users', $userModel);
    }