Support sorting product by update date

CHANGELOG.md

@@ -15,3 +15,4 @@ All notable, unreleased changes to this project will be documented in this file.
 - Use first and last name of a customer or staff member in UI - #3247 by @Bonifacy1, @dominik-zeglen
 - Bump `urllib3` and `elasticsearch` to latest versions - #3460 by @maarcingebala
 - Resort imports in tests - #3471 by @jxltom
+- Support sorting products by update date - #3470 by @jxltom

saleor/graphql/product/types.py

@@ -46,12 +46,18 @@ class StockAvailability(graphene.Enum):
 class ProductOrderField(graphene.Enum):
     NAME = 'name'
     PRICE = 'price'
+    DATE = 'updated_at'
 
     @property
     def description(self):
         if self == ProductOrderField.NAME:
             return 'Sort products by name.'
-        return 'Sort products by price.'
+
+        if self == ProductOrderField.PRICE:
+            return 'Sort products by price.'
+
+        if self == ProductOrderField.DATE:
+            return 'Sort products by update date.'
 
 
 class OrderDirection(graphene.Enum):

saleor/graphql/schema.graphql

@@ -1445,6 +1445,7 @@ input ProductOrder {
 enum ProductOrderField {
   NAME
   PRICE
+  DATE
 }
 
 type ProductType implements Node {

tests/api/test_product.py

@@ -1,7 +1,9 @@
+from datetime import datetime
 from unittest.mock import Mock, patch
 
 import graphene
 import pytest
+from django.utils.dateparse import parse_datetime
 from django.utils.text import slugify
 from graphql_relay import to_global_id
 from prices import Money
@@ -304,13 +306,15 @@ def test_filter_products_by_collections(
 
 
 def test_sort_products(user_api_client, product):
-    # set price of the first product
+    # set price and update date of the first product
     product.price = Money('10.00', 'USD')
+    product.updated_at = datetime.utcnow()
     product.save()
 
-    # create the second product with higher price
+    # Create the second product with higher price and date
     product.pk = None
     product.price = Money('20.00', 'USD')
+    product.updated_at = datetime.utcnow()
     product.save()
 
     query = """
@@ -321,6 +325,7 @@ def test_sort_products(user_api_client, product):
                     price {
                         amount
                     }
+                    updatedAt
                 }
             }
         }
@@ -343,6 +348,22 @@ def test_sort_products(user_api_client, product):
     price_1 = content['data']['products']['edges'][1]['node']['price']['amount']
     assert price_0 > price_1
 
+    asc_date_query = query % {
+        'sort_by_product_order': '{field: DATE, direction:ASC}'}
+    response = user_api_client.post_graphql(asc_date_query)
+    content = get_graphql_content(response)
+    date_0 = content['data']['products']['edges'][0]['node']['updatedAt'] ## parse_datetime
+    date_1 = content['data']['products']['edges'][1]['node']['updatedAt']
+    assert parse_datetime(date_0) < parse_datetime(date_1)
+
+    desc_date_query = query % {
+        'sort_by_product_order': '{field: DATE, direction:DESC}'}
+    response = user_api_client.post_graphql(desc_date_query)
+    content = get_graphql_content(response)
+    date_0 = content['data']['products']['edges'][0]['node']['updatedAt']
+    date_1 = content['data']['products']['edges'][1]['node']['updatedAt']
+    assert parse_datetime(date_0) > parse_datetime(date_1)
+
 
 def test_create_product(
         staff_api_client, product_type, category, size_attribute,