I Am Creating Custom catalog_product_link_type,

I've added Additional Section in Related Products Section And It is Working.

But How to Save Values Of This additional section Into Database. enter image description here

I have Created My Custom type by adding it into catalog_product_link_type table.

Does AnyOne Know which controller, js, event is used for saving this data.??

  • 2
    There is a sample module here: github.com/mrkhoa99/Boolfly_ProductRelation – Khoa TruongDinh Nov 7 '17 at 14:22
  • @ Khoa TruongDinh Custome Type is Not Saving In this Module... – Rizwan Khan Nov 8 '17 at 5:10
  • What is your Magento version? – Khoa TruongDinh Nov 8 '17 at 5:53
  • @KhoaTruongDinh my magento version is 2.1.5 – Rizwan Khan Nov 8 '17 at 6:47
  • I will check later. I think many users can use that module, so it will work for you as well. But, I don't know why it doesn't work for your Magento version. Can you check with the 2.1.9 version? – Khoa TruongDinh Nov 8 '17 at 7:13

After Some R&D I came To This Solution.

Creating Preference For Magento\Catalog\Controller\Adminhtml\Product\Initialization\Helper

<preference for="Magento\Catalog\Controller\Adminhtml\Product\Initialization\Helper" type="Your\Module\Controller\Adminhtml\Product\Initialization\Helper"/>

OverRide setProductLinks() Of That Class Like This,

    protected function setProductLinks(\Magento\Catalog\Model\Product $product)
        $links = $this->getLinkResolver()->getLinks();


        $product = $this->productLinks->initializeLinks($product, $links);
        $productLinks = $product->getProductLinks();
        $linkTypes = [
            'related' => $product->getRelatedReadonly(),
            'upsell' => $product->getUpsellReadonly(),
            'crosssell' => $product->getCrosssellReadonly(),
            'yourtype' => $product->getYourTypeReadonly()

        foreach ($linkTypes as $linkType => $readonly) {
            if (isset($links[$linkType]) && !$readonly) {
                foreach ((array) $links[$linkType] as $linkData) {
                    if (empty($linkData['id'])) {

                    $linkProduct = $this->getProductRepository()->getById($linkData['id']);
                    $link = $this->getProductLinkFactory()->create();
                        ->setPosition(isset($linkData['position']) ? (int)$linkData['position'] : 0);
                    $productLinks[] = $link;

        return $product->setProductLinks($productLinks);

After That Data Will Be saved In catalog_product_link And Other Related Tables.

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