enabled search by category

products/utils.py

@@ -125,7 +125,7 @@ def find_related_products_v3(keyword):
     return set(products_qs)
 
 
-def find_related_products_v6(keyword, shipping_cost=None, discount=None):
+def find_related_products_v6(keyword, shipping_cost=None, discount=None, category=None):
     """
     Ranked product search
 
@@ -143,6 +143,10 @@ def find_related_products_v6(keyword, shipping_cost=None, discount=None):
         rank=SearchRank(vector, query)
     ).filter(rank__gt=0.05)     # removed order_by because its lost in casting
 
+    # filter by category
+    if category is not None:
+        products_qs = products_qs.filter(category=category)
+
     # filter for shipping cost
     if shipping_cost is True:
         # only instances with shipping costs