Merge pull request #4 from iMi-digital/master

 #2 Allow importing of the custom link

Plugin/CatalogImportExport/Model/Import/Product.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace MagePal\LinkProduct\Plugin\CatalogImportExport\Model\Import;
+
+/**
+ * @see \Magento\CatalogImportExport\Model\Import\Product::getLinkNameToId
+ */
+class Product
+{
+    /**
+     * REMARK: needs core patch https://github.com/magento/magento2/pull/21230/commits/0846e9aed7040659e7ce3e109eb91df3f5fdfb7e.patch
+     *
+     * @param \Magento\CatalogImportExport\Model\Import\Produc $subject
+     * @param $result
+     *
+     * @return mixed
+     */
+    public function afterGetLinkNameToId(\Magento\CatalogImportExport\Model\Import\Product $subject, $result)
+    {
+        $result['_accessory_'] = \MagePal\LinkProduct\Model\Product\Link::LINK_TYPE_ACCESSORY;
+        return $result;
+    }
+
+}

README.md

@@ -48,6 +48,10 @@ Contribution
 ---
 Want to contribute to this extension? The quickest way is to open a [pull request on GitHub](https://help.github.com/articles/using-pull-requests).
 
+Importing via CSV or 3rd party extensions
+---
+
+To import via CSV, you need to have the [a patch applied to the core](https://github.com/magento/magento2/pull/21230/commits/0846e9aed7040659e7ce3e109eb91df3f5fdfb7e.patch) (until merged to Magento 2).
 
 Support
 ---

etc/di.xml

@@ -27,4 +27,8 @@
             </argument>
         </arguments>
     </type>
+    <type name="\Magento\CatalogImportExport\Model\Import\Product">
+        <plugin name="addLinkType"
+                type="\MagePal\LinkProduct\Plugin\CatalogImportExport\Model\Import\Product"/>
+    </type>
 </config>