https://github.com/magesuite/elasticsuite-virtual-category-indexer

Installation

This module is optional.

composer require "creativestyle/magesuite-elasticsuite-virtual-category-indexer" ^1.0.0

Logic overview

Configuration

To enable virtual category indexer or change a cron schedule go to:

Admin area
Store
Conffiguration
Magesuite
Virtual Category Indexer
General

CLI Commmand

Command	Description
`indexer:reindex elasticsuite_virtual_category_indexer`	Reindex all virtual categories. It reindex whole `catalogsearch_category` index
`indexer:reindex:virtual-category [-s, --strategy [STRATEGY]] [-c , --ids [CATEGORY IDS]]`	Reindex virtual categories with strategy (full, list, category)

Cron

Full reindexation is runing automaticaly by cron schedule.

Important module classes

Class	Responsibility
MageSuite\ElasticsuiteVirtualCategoryIndexer\Model\Indexer\VirtualCategoryIndexer	Insert product ids into the table `catalog_category_product` and refresh catalog and elasticsuite indexes
MageSuite\ElasticsuiteVirtualCategoryIndexer\Model\ElasticsuiteVirtualCategory\Model\Preview	Allow to get raw data from from response from elasticsearch using `getRawData()` method
MageSuite\ElasticsuiteVirtualCategoryIndexer\Model\Catalog\ResourceModel\CategoryProduct	Extension Class for `Magento\Catalog\Model\ResourceModel\CategoryProduct`. Allow to insert product ids for a virtual category into the table `catalog_category_product` and get theirs ids for other operations
MageSuite\ElasticsuiteVirtualCategoryIndexer\Model\Catalog\ResourceModel\Category\Collection	Extension Class for `Magento\Catalog\Model\ResourceModel\Category\Collection` provide the method `getVirtualCategoryIds()` to get all virtual category ids.
MageSuite\ElasticsuiteVirtualCategoryIndexer\Plugin\Catalog\Category\ReindexOnChange	Plugin which is call before runing the reindex method on category model and causes run `virtual category indexer`
MageSuite\ElasticsuiteVirtualCategoryIndexer\Plugin\ElasticsuiteVirtualCategory\Model\Rule\GetCategorySearchQuery	Plugin which change value of `is_virtual_category` attribute to `null` . It force sendingstandard category request to elasticsearch instead of depends of the attribute value.
MageSuite\ElasticsuiteVirtualCategoryIndexer\Service\VirtualCategoryIndexer	Service which provide strategy logic for CLI Command

Extension attribute

Module provide the extension attribute virtual_query to modify request to elasticsaerch using the plugin. If it has true smile works standardly. False value remove virtual query request.

See: \Smile\ElasticsuiteVirtualCategory\Model\Rule::getCategorySearchQuery

public function getCategorySearchQuery($category, $excludedCategories = []): ?QueryInterface
{
    $query = null;

    if (!is_object($category)) {
        $category = $this->categoryFactory->create()->setStoreId($this->getStoreId())->load($category);
    }

    if (!in_array($category->getId(), $excludedCategories)) {
        $excludedCategories[] = $category->getId();

        if ((bool) $category->getIsVirtualCategory() && $category->getIsActive()) {
           $query = $this->getVirtualCategoryQuery($category, $excludedCategories, $category->getData('virtual_category_root'));
        } elseif ($category->getId() && $category->getIsActive()) {
            $query = $this->getStandardCategoryQuery($category, $excludedCategories);
        }
        if ($query && $category->hasChildren()) {
            $query = $this->addChildrenQueries($query, $category, $excludedCategories);
        }
    }

    return $query;
}

EAV attribute

Module install a new category attribute virtual_category_reindex_required. If this attribute has value=1 smile works standardly.

Troubleshooting and todo in the future

When change root category of virtual category, previous products still are in the category

To remove product from categories run full reindexation.

After turn on module, virtual category does not display products anymore

If you see products on the preview in admin area:

it seems that ES can return the right product IDs in the indexer.

Make sure that the script provides the right category object here:

vendor/creativestyle/magesuite-elasticsuite-virtual-category-indexer/Model/Indexer/VirtualCategoryIndexer.php:150

should be the same as here:

vendor/creativestyle/magesuite-elasticsuite-virtual-category-indexer/Controller/Adminhtml/Category/Virtual/Preview.php:67

ElasticsuiteVirtualCategoryIndexer (optional)