Selling can be sorted by any ItemListing field

api/commands.py

@@ -232,9 +232,9 @@ def selling(item_name, sort="normalized_price"):
     '''
     :request: GET
     :param item_name: Item name to search for
-    :param sort: Field to sort shop results by
-    :return: List of top matches shop, sorted by when they were added
-    :help: List shops selling an item. Sorted by most recently added
+    :param sort: Field to sort shop results by, default is price
+    :return: List of top matching shops, sorted by the
+    :help: Lists shops selling an item.
     '''
 
     items = []
@@ -254,7 +254,7 @@ def selling(item_name, sort="normalized_price"):
 
         item_query = ItemListing.objects.annotate(normalized_price=F('price') / F('amount')) \
             .filter(item_name__icontains=item_name, shop_id=shop_id['shop_id']) \
-            .order_by('normalized_price') \
+            .order_by(sort) \
             .values("item_name", "price", "amount")
 
         item_list = []

models.py

@@ -78,7 +78,7 @@ class ItemListing(models.Model):
     item_name = models.CharField(max_length=128)
     price = models.IntegerField()
     amount = models.IntegerField()
-
+    date_restocked = models.DateTimeField(auto_now=True)
     shop = models.ForeignKey(Shop, related_name="shop_selling", on_delete=models.CASCADE)
 
     @property