<?xml version="1.0"?> <!-- /** * Copyright © Magento, Inc. All rights reserved. * See COPYING.txt for license details. */ --> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Api/etc/extension_attributes.xsd"> <extension_attributes for="Magento\Catalog\Api\Data\ProductInterface"> <attribute code="test_stock_item" type="Magento\CatalogInventory\Api\Data\StockItemInterface"> <resources> <resource ref="Magento_CatalogInventory::cataloginventory"/> </resources> <join reference_table="cataloginventory_stock_item" join_on_field="entity_id" reference_field="product_id" > <field>qty</field> <field>item_id</field> </join> </attribute> <attribute code="test_stock_item_qty" type="string"> <resources> <resource ref="Magento_CatalogInventory::cataloginventory"/> </resources> <join reference_table="cataloginventory_stock_item" join_on_field="entity_id" reference_field="product_id" > <field>qty</field> </join> </attribute> </extension_attributes> <extension_attributes for="Magento\TestModuleExtensionAttributes\Api\Data\FakeCustomerInterface"> <attribute code="test_group_code" type="string"> <join reference_table="customer_group" join_on_field="group_id" reference_field="customer_group_id" > <field>customer_group_code</field> </join> </attribute> </extension_attributes> <extension_attributes for="Magento\Customer\Api\Data\CustomerInterface"> <attribute code="test_group_code" type="string"> <join reference_table="customer_group" join_on_field="group_id" reference_field="customer_group_id" > <field>customer_group_code</field> </join> </attribute> <attribute code="test_group" type="Magento\Customer\Api\Data\GroupInterface"> <join reference_table="customer_group" join_on_field="group_id" reference_field="customer_group_id" > <field>tax_class_id</field> <field column="customer_group_code">code</field> </join> </attribute> </extension_attributes> <extension_attributes for="Magento\Customer\Api\Data\GroupInterface"> <attribute code="test_dummy_attribute" type="string"> <join reference_table="eav_attribute" reference_field="attribute_id" join_on_field="customer_group_id" > <field>attribute_code</field> </join> </attribute> <attribute code="test_complex_dummy_attribute" type="Magento\Catalog\Api\Data\ProductAttributeInterface"> <join reference_table="admin_user" reference_field="user_id" join_on_field="customer_group_id" > <field column="username">attribute_code</field> <field column="firstname">frontend_label</field> </join> </attribute> </extension_attributes> <extension_attributes for="Magento\Sales\Api\Data\InvoiceInterface"> <attribute code="test_dummy_attribute" type="string"> <join reference_table="eav_attribute" reference_field="attribute_id" join_on_field="entity_id" > <field>attribute_code</field> </join> </attribute> </extension_attributes> </config>