runSoftDelete for composite primary key in Laravel

/**
   * Perform the actual delete query on this model instance.
   *
   * @return void
   */
  protected function runSoftDelete()
  {
    $query = $this->newQueryWithoutScopes()->where($this->getKeyName()[0], $this->attributes[$this->getKeyName()[0]])
    ->where($this->getKeyName()[1], $this->attributes[$this->getKeyName()[1]]);

    $time = $this->freshTimestamp();

    $columns = [$this->getDeletedAtColumn() => $this->fromDateTime($time)];

    $this->{$this->getDeletedAtColumn()} = $time;

    if ($this->timestamps && ! is_null($this->getUpdatedAtColumn())) {
      $this->{$this->getUpdatedAtColumn()} = $time;

      $columns[$this->getUpdatedAtColumn()] = $this->fromDateTime($time);
    }

    $query->update($columns);
  }