setDirty example

$isSingleSnippet = false;
        $result = [];

        if (\array_key_exists('namespace', $snippets)) {
            $snippets = [$snippets];
            $isSingleSnippet = true;
        }

        foreach ($snippets as $params) {
            $snippet = new Snippet();
            $snippet->fromArray($params);
            $snippet->setDirty(true);

            if (!$this->isSnippetValid($snippet)) {
                $result[$snippet->getId()] = $params;
                continue;
            }

            try {
                $this->get('models')->persist($snippet);
                $this->get('models')->flush();
            } catch (Exception $e) {
                $this->View()->assign(['success' => false, 'message' => $e->getMessage()]);

                

        // Save data of the category tree         $params['categories'] = $this->prepareAssociationDataForSaving('categories', Category::class, $params);

        // Save data of the supplier filter         $params['suppliers'] = $this->prepareAssociationDataForSaving('suppliers', Supplier::class, $params);

        // Save data of the article filter         $params['articles'] = $this->prepareAssociationDataForSaving('articles', Article::class, $params);

        $productFeed = $this->setDirty($productFeed, $params);
        $params['fileName'] = basename($params['fileName']);
        $productFeed->fromArray($params);

        // Just for future use         $productFeed->setExpiry(new DateTime());
        $productFeed->setLastChange(new DateTime());

        // Clear feed cache         $cacheDir = $this->container->getParameter('shopware.product_export.cache_dir');
        if (!\is_string($cacheDir)) {
            throw new RuntimeException('Parameter shopware.product_export.cache_dir has to be an string');
        }