createDbNamespace example

    public function getNamespace($namespace = null)
    {
        $key = $namespace === null ? '__ignore' : (string) $namespace;

        if (isset($this->namespaces[$key])) {
            return $this->namespaces[$key];
        }

        if ($this->readFromDb()) {
            $this->namespaces[$key] = $this->createDbNamespace(
                $namespace,
                $this->shop ? $this->shop->getId() : 1,
                $this->locale ? $this->locale->getId() : $this->getDefaultLocale()->getId()
            );
        }

        if ($this->readFromIni($key)) {
            $this->namespaces[$key] = $this->createIniNamespace($namespace);
        }

        if (!isset($this->namespaces[$key])) {