custom queryset method to bulk update customer balance

counter/baker_recipes.py

@@ -0,0 +1,18 @@
+from model_bakery.recipe import Recipe, foreign_key
+
+from club.models import Club
+from core.models import User
+from counter.models import Counter, Product, Refilling, Selling
+
+counter_recipe = Recipe(Counter)
+product_recipe = Recipe(Product, club=foreign_key(Recipe(Club)))
+sale_recipe = Recipe(
+    Selling,
+    product=foreign_key(product_recipe),
+    counter=foreign_key(counter_recipe),
+    seller=foreign_key(Recipe(User)),
+    club=foreign_key(Recipe(Club)),
+)
+refill_recipe = Recipe(
+    Refilling, counter=foreign_key(counter_recipe), operator=foreign_key(Recipe(User))
+)