Where is the "add product logic" in smart category rule - Magento 2 EE

Question

I need to alter the logic of "add product in a category" based on category rule.

My effort:

After add rule, When I save category, it redirects to http://host/admin/catalog/category/save/key/cae5eaa5332d3c8a4be400eb667530bfba2727445ce1a072d5f006f4a9f10be4/ but in that controller I'm not seeing any add product logic, in that controller dispatch event catalog_category_prepare_save while check I found one observer vendor/magento/module-visual-merchandiser/Observer/CategorySaveMerchandiserData.php are listening to this event, I have checked that observer too but I can't found where it is the add product logic.

Please help me to identify.

Thanks!

Answer 1

You tried wrong way. Try following way:

Open vendor/magento/module-visual-merchandiser/Observer/CatalogCategorySaveBefore.php Following line actually build this according to rule.

$this->categoryBuilder->rebuildCategory($category);

Now go to vendor/magento/module-visual-merchandiser/Model/Category/Builder.php

Following line build this:

$this->rules->applyAllRules($category, $collection);

Now finally open vendor/magento/module-visual-merchandiser/Model/Rules.php

And check here:

public function applyAllRules(
    \Magento\Catalog\Model\Category $category,
    \Magento\Catalog\Model\ResourceModel\Product\Collection $collection
) {
    ......
}