More changes found with updated regex

app/code/local/Inchoo/PHP7/Model/Product/Link/Api/V2.php

@@ -0,0 +1,106 @@
+<?php
+/**
+ * Created on: 2016-03-02
+ * @copyright Inchoo d.o.o. (http://inchoo.net)
+ * @author Benjam Welker
+ * @license MIT
+ */
+class Inchoo_PHP7_Model_Product_Link_Api_V2 extends Mage_ImportExport_Model__Product_Link_Api_V2
+{
+
+    public function assign($type, $productId, $linkedProductId, $data = array(), $identifierType = null)
+    {
+        $typeId = $this->_getTypeId($type);
+
+        $product = $this->_initProduct($productId, $identifierType);
+
+        $link = $product->getLinkInstance()
+            ->setLinkTypeId($typeId);
+
+        $collection = $this->_initCollection($link, $product);
+        $idBySku = $product->getIdBySku($linkedProductId);
+        if ($idBySku) {
+            $linkedProductId = $idBySku;
+        }
+
+        $links = $this->_collectionToEditableArray($collection);
+
+        $links[(int) $linkedProductId] = array();
+        foreach ($collection->getLinkModel()->getAttributes() as $attribute) {
+            if (isset($data->{$attribute['code']})) {
+                $links[(int) $linkedProductId][$attribute['code']] = $data->{$attribute['code']};
+            }
+        }
+
+        try {
+            if ($type == 'grouped') {
+                $link->getResource()->saveGroupedLinks($product, $links, $typeId);
+            } else {
+                $link->getResource()->saveProductLinks($product, $links, $typeId);
+            }
+
+            $_linkInstance = Mage::getSingleton('catalog/product_link');
+            $_linkInstance->saveProductRelations($product);
+
+            $indexerStock = Mage::getModel('cataloginventory/stock_status');
+            $indexerStock->updateStatus($productId);
+
+            $indexerPrice = Mage::getResourceModel('catalog/product_indexer_price');
+            $indexerPrice->reindexProductIds($productId);
+
+        } catch (Exception $e) {
+            $this->_fault('data_invalid', $e->getMessage());
+            //$this->_fault('data_invalid', Mage::helper('catalog')->__('Link product does not exist.'));
+        }
+
+        return true;
+    }
+
+    public function update($type, $productId, $linkedProductId, $data = array(), $identifierType = null)
+    {
+        $typeId = $this->_getTypeId($type);
+
+        $product = $this->_initProduct($productId, $identifierType);
+
+        $link = $product->getLinkInstance()
+            ->setLinkTypeId($typeId);
+
+        $collection = $this->_initCollection($link, $product);
+
+        $links = $this->_collectionToEditableArray($collection);
+
+        $idBySku = $product->getIdBySku($linkedProductId);
+        if ($idBySku) {
+            $linkedProductId = $idBySku;
+        }
+
+        foreach ($collection->getLinkModel()->getAttributes() as $attribute) {
+            if (isset($data->{$attribute['code']})) {
+                $links[(int) $linkedProductId][$attribute['code']] = $data->{$attribute['code']};
+            }
+        }
+
+        try {
+            if ($type == 'grouped') {
+                $link->getResource()->saveGroupedLinks($product, $links, $typeId);
+            } else {
+                $link->getResource()->saveProductLinks($product, $links, $typeId);
+            }
+
+            $_linkInstance = Mage::getSingleton('catalog/product_link');
+            $_linkInstance->saveProductRelations($product);
+
+            $indexerStock = Mage::getModel('cataloginventory/stock_status');
+            $indexerStock->updateStatus($productId);
+
+            $indexerPrice = Mage::getResourceModel('catalog/product_indexer_price');
+            $indexerPrice->reindexProductIds($productId);
+
+        } catch (Exception $e) {
+            $this->_fault('data_invalid', Mage::helper('catalog')->__('Link product does not exist.'));
+        }
+
+        return true;
+    }
+
+}

app/code/local/Inchoo/PHP7/etc/config.xml

@@ -20,7 +20,7 @@
                 </totals>
             </quote>
         </sales>
-	
+
         <models>
             <inchoo_php7>
                 <class>Inchoo_PHP7_Model</class>
@@ -41,6 +41,11 @@
                     <export_entity_customer>Inchoo_PHP7_Model_Export_Entity_Customer</export_entity_customer>
                 </rewrite>
             </importexport>
+            <catalog>
+                <rewrite>
+                    <product_link_api_v2>Inchoo_PHP7_Model_Product_Link_Api_V2</product_link_api_v2>
+                </rewrite>
+            </catalog>
         </models>
     </global>
-</config>
+</config>