Add option to index child attributes or not

src/module-elasticsuite-catalog/Model/Eav/Indexer/Fulltext/Datasource/AbstractAttributeData.php

@@ -18,6 +18,7 @@
 use Smile\ElasticsuiteCatalog\Model\ResourceModel\Eav\Indexer\Fulltext\Datasource\AbstractAttributeData as ResourceModel;
 use Smile\ElasticsuiteCore\Index\Mapping\FieldFactory;
 use Smile\ElasticsuiteCatalog\Helper\AbstractAttribute as AttributeHelper;
+use Smile\ElasticsuiteCatalog\Scope\Config;
 use Smile\ElasticsuiteCore\Api\Index\Mapping\FieldInterface;
 
 /**
@@ -44,6 +45,9 @@ abstract class AbstractAttributeData
      */
     protected $attributeHelper;
 
+    /** @var Config */
+    protected $config;
+
     /**
      * @var \Smile\ElasticsuiteCatalog\Model\ResourceModel\Eav\Indexer\Fulltext\Datasource\AbstractAttributeData
      */
@@ -75,17 +79,20 @@ abstract class AbstractAttributeData
     /**
      * Constructor
      *
+     * @param Config          $config               Configuration retriever
      * @param ResourceModel   $resourceModel        Resource model.
      * @param FieldFactory    $fieldFactory         Mapping field factory.
      * @param AttributeHelper $attributeHelper      Attribute helper.
      * @param array           $indexedBackendModels List of indexed backend models added to the default list.
      */
     public function __construct(
+        Config $config,
         ResourceModel $resourceModel,
         FieldFactory $fieldFactory,
         AttributeHelper $attributeHelper,
         array $indexedBackendModels = []
     ) {
+        $this->config          = $config;
         $this->resourceModel   = $resourceModel;
         $this->attributeHelper = $attributeHelper;
         $this->fieldFactory    = $fieldFactory;

src/module-elasticsuite-catalog/Model/Product/Indexer/Fulltext/Datasource/AttributeData.php

@@ -20,6 +20,7 @@
 use Smile\ElasticsuiteCatalog\Helper\AbstractAttribute as AttributeHelper;
 use Smile\ElasticsuiteCatalog\Model\Eav\Indexer\Fulltext\Datasource\AbstractAttributeData;
 use Smile\ElasticsuiteCatalog\Model\ResourceModel\Eav\Indexer\Fulltext\Datasource\AbstractAttributeData as ResourceModel;
+use Smile\ElasticsuiteCatalog\Scope\Config;
 use Smile\ElasticsuiteCore\Api\Index\DatasourceInterface;
 use Smile\ElasticsuiteCore\Api\Index\Mapping\DynamicFieldProviderInterface;
 use Smile\ElasticsuiteCore\Index\Mapping\FieldFactory;
@@ -59,6 +60,7 @@ class AttributeData extends AbstractAttributeData implements DatasourceInterface
     /**
      * Constructor
      *
+     * @param Config               $config                      Configuration retriever
      * @param ResourceModel        $resourceModel               Resource model.
      * @param FieldFactory         $fieldFactory                Mapping field factory.
      * @param AttributeHelper      $attributeHelper             Attribute helper.
@@ -67,14 +69,15 @@ class AttributeData extends AbstractAttributeData implements DatasourceInterface
      * @param ScopeConfigInterface $scopeConfig                 Scope Config.
      */
     public function __construct(
+        Config $config,
         ResourceModel $resourceModel,
         FieldFactory $fieldFactory,
         AttributeHelper $attributeHelper,
         array $indexedBackendModels = [],
         array $forbiddenChildrenAttributes = [],
         ScopeConfigInterface $scopeConfig = null
     ) {
-        parent::__construct($resourceModel, $fieldFactory, $attributeHelper, $indexedBackendModels);
+        parent::__construct($config, $resourceModel, $fieldFactory, $attributeHelper, $indexedBackendModels);
 
         $this->scopeConfig = $scopeConfig;
         $this->forbiddenChildrenAttributes = array_values($forbiddenChildrenAttributes);
@@ -88,6 +91,10 @@ public function addData($storeId, array $indexData)
         $productIds   = array_keys($indexData);
         $indexData    = $this->addAttributeData($storeId, $productIds, $indexData);
 
+        if (!$this->config->isIncludeChildAttributes()) {
+            return $indexData;
+        }
+
         $relationsByChildId = $this->resourceModel->loadChildrens($productIds, $storeId);
 
         if (!empty($relationsByChildId)) {

src/module-elasticsuite-catalog/Scope/Config.php

@@ -0,0 +1,55 @@
+<?php
+/**
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade Smile ElasticSuite to newer
+ * versions in the future.
+ *
+ * @category  Smile
+ * @package   Smile\ElasticsuiteCatalog
+ * @author    Dan Wallis <[email protected]>
+ * @copyright 2022 Smile
+ * @license   Open Software License ("OSL") v. 3.0
+ */
+
+namespace Smile\ElasticsuiteCatalog\Scope;
+
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Store\Model\ScopeInterface;
+
+/**
+ * Configuration retreival class
+ *
+ * @category  Smile
+ * @package   Smile\ElasticsuiteCatalog
+ * @author    Dan Wallis <[email protected]>
+ */
+class Config
+{
+    protected const INCLUDE_CHILD_ATTRIBUTES = 'smile_elasticsuite_catalogsearch_settings/catalogsearch/include_child_attributes';
+
+    /** @var ScopeConfigInterface */
+    protected $scopeConfig;
+
+    /**
+     * @param ScopeConfigInterface $scopeConfig Magento configuration class
+     */
+    public function __construct(
+        ScopeConfigInterface $scopeConfig
+    ) {
+        $this->scopeConfig = $scopeConfig;
+    }
+
+    /**
+     * Retrieve configuration option to include/exclude child attributes from indexing
+     *
+     * @return bool
+     */
+    public function isIncludeChildAttributes(): bool
+    {
+        return $this->scopeConfig->isSetFlag(
+            self::INCLUDE_CHILD_ATTRIBUTES,
+            ScopeInterface::SCOPE_STORE
+        );
+    }
+}

src/module-elasticsuite-catalog/etc/adminhtml/system.xml

@@ -80,6 +80,11 @@
                     <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
                     <comment><![CDATA[If enabled, child products SKUs of composite products will be indexed in a separate field and the "sku" field will only contain the parent product sku.]]></comment>
                 </field>
+                <field id="include_child_attributes" translate="label comment" type="select" sortOrder="55" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
+                    <label>Include child attributes during indexing</label>
+                    <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>
+                    <comment><![CDATA[If enabled, attributes of associated child products will be included with their parents when indexing. This will impact what filters are shown in category pages. For example, if a child of a bundle product has a particular colour then its parent will have this colour associated with it. <br><strong>Note when changing this setting</strong>, it is recommended to perform a full reindex of the <q>Catalog Search</q> indexer.]]></comment>
+                </field>
                 <field id="compute_child_product_discount" translate="label comment" type="select" sortOrder="60" showInDefault="1" showInWebsite="1" showInStore="1" canRestore="1">
                     <label>Enable indexing discount on child products</label>
                     <source_model>Magento\Config\Model\Config\Source\Yesno</source_model>

src/module-elasticsuite-catalog/etc/config.xml

@@ -39,6 +39,7 @@
                 <expanded_facets>3</expanded_facets>
                 <adaptive_slider_enabled>0</adaptive_slider_enabled>
                 <index_child_product_sku>0</index_child_product_sku>
+                <include_child_attributes>1</include_child_attributes>
                 <compute_child_product_discount>0</compute_child_product_discount>
             </catalogsearch>
         </smile_elasticsuite_catalogsearch_settings>