src/Services/WCPriceUpdate.php

@@ -46,14 +46,18 @@ class WCPriceUpdate {
             if ($price["regular"] <= $price["new"]) {
                 $product->set_regular_price($price["new"]);
 
+                // Полностью очищаем акционную цену
                 if ($price["sale"] > 0) {
-                    $product->set_sale_price(0);
+                    $product = self::clearSalePrice($product);
                 }
             } else {
-                $product->set_sale_price($price["new"]);
+                if ($price["new"] == 0) {
+                    $product = self::clearSalePrice($product);
+                } else {
+                    $product->set_sale_price($price["new"]);
+                }
             }
 
-
             $product->save();
 
             $result[] = [ 
@@ -73,4 +77,12 @@ class WCPriceUpdate {
 
         return $result;
     }
+
+    private static function clearSalePrice($product) {
+        $product->set_sale_price("");
+        $product->set_date_on_sale_from("");
+        $product->set_date_on_sale_to("");
+
+        return $product;
+    }
 }