From d93ee8e5edd0b81d8ea05e7c2829c11d9e3cfa07 Mon Sep 17 00:00:00 2001
From: Roman Ludwicki <roman.ludwicki@magently.com>
Date: Tue, 10 Sep 2019 13:41:52 +0200
Subject: [PATCH] Fix sale price for grouped products

refs #63007

Change-Id: Idf27e7b50a3206cf6c9bbc182bdb5e1b2c4748b0
---
 .../Feed/Model/Map/Product/Grouped.php        | 48 +++++++++++++++----
 1 file changed, 40 insertions(+), 8 deletions(-)

diff --git a/app/code/community/Doofinder/Feed/Model/Map/Product/Grouped.php b/app/code/community/Doofinder/Feed/Model/Map/Product/Grouped.php
index 5edc5671..4f10efdf 100644
--- a/app/code/community/Doofinder/Feed/Model/Map/Product/Grouped.php
+++ b/app/code/community/Doofinder/Feed/Model/Map/Product/Grouped.php
@@ -21,14 +21,17 @@ class Doofinder_Feed_Model_Map_Product_Grouped
     /**
      * Grouped products doesn't have special price.
      *
+     * @param string $field
+     *
      * @return float
      */
     public function getProductPrice($field)
     {
-        $price = $this->getMinPrice($this->getProduct());
+        $price = $this->getMinPrice($this->getProduct(), $field);
 
-        if ($price <= 0)
+        if ($price <= 0) {
             $this->skip = true;
+        }
 
         return $price;
     }
@@ -38,23 +41,52 @@ public function calcGroupPrice($product)
         $price = 0.0;
         $associates = $product->getTypeInstance()->getAssociatedProducts();
 
-        foreach ($associates as $associatedProduct)
+        foreach ($associates as $associatedProduct) {
             $price += $associatedProduct->getPrice();
+        }
 
         return $price; // Total price
     }
 
-    public function getMinPrice($product)
+    /**
+     * @param Mage_Catalog_Model_Product $product
+     * @param string $field
+     *
+     * @return float|mixed|null
+     */
+    public function getMinPrice($product, $field = 'price')
     {
         $price = null;
 
         foreach ($product->getTypeInstance()->getAssociatedProducts() as $ap) {
-            if ($price === null)
-                $price = $ap->getPrice();
-            else
-                $price = min($price, $ap->getPrice());
+            if ($price === null) {
+                $price = $this->getPriceByField($ap, $field);
+            } else {
+                $price = min($price, $this->getPriceByField($ap, $field));
+            }
         }
 
         return $price === null ? 0.0 : $price;
     }
+
+    /**
+     * Get product price according to field
+     *
+     * @param Mage_Catalog_Model_Product $product
+     * @param string $field
+     *
+     * @return float|null
+     */
+    private function getPriceByField($product, $field)
+    {
+        switch ($field) {
+            case 'price':
+                return $product->getPrice();
+
+            case 'sale_price':
+            default:
+                $salePrice = $product->getPriceModel()->getFinalPrice(null, $product);
+                return $product->getPrice() <= $salePrice ? null : $salePrice;
+        }
+    }
 }