[fix] Ensure recent items are shown first in the REST API

openwisp_controller/config/tests/test_api.py

@@ -1,8 +1,11 @@
+from datetime import timedelta
+
 from django.contrib.auth.models import Permission
 from django.test import TestCase
 from django.test.client import BOUNDARY, MULTIPART_CONTENT, encode_multipart
 from django.test.testcases import TransactionTestCase
 from django.urls import reverse
+from django.utils import timezone
 from swapper import load_model
 
 from openwisp_controller.config.api.serializers import BaseConfigSerializer
@@ -244,11 +247,31 @@ def test_device_create_with_devicegroup(self):
         self.assertEqual(response.data["group"], device_group.pk)
 
     def test_device_list_api(self):
-        self._create_device()
+        device = self._create_device()
         path = reverse("config_api:device_list")
         with self.assertNumQueries(4):
             r = self.client.get(path)
         self.assertEqual(r.status_code, 200)
+        with self.subTest("device list should show most recent first"):
+            org = self._get_org()
+            recent = self._create_device(
+                name="recent-device-2",
+                mac_address="00:00:00:00:00:02",
+                organization=org,
+            )
+            oldest = self._create_device(
+                name="oldest-device",
+                mac_address="00:00:00:00:00:03",
+                organization=org,
+            )
+            oldest.created = timezone.now() - timedelta(days=2)
+            oldest.save(update_fields=["created"])
+            path = reverse("config_api:device_list")
+            response = self.client.get(path)
+            self.assertEqual(response.status_code, 200)
+            names = [d["name"] for d in response.data["results"]]
+            expected = [recent.name, device.name, oldest.name]
+            self.assertEqual(names, expected)
 
     def test_device_list_api_filter(self):
         org1 = self._create_org()
@@ -1028,7 +1051,7 @@ def test_devicegroup_create_api(self):
         self.assertEqual(response.data["templates"], [template.pk])
 
     def test_devicegroup_list_api(self):
-        self._create_device_group()
+        dg = self._create_device_group()
         path = reverse("config_api:devicegroup_list")
         with self.subTest("assert number of queries"):
             with self.assertNumQueries(5):
@@ -1044,6 +1067,16 @@ def test_devicegroup_list_api(self):
             self.assertNotContains(
                 r, f'<option value="{t2.id}">{t2.name}</option>', html=True
             )
+        with self.subTest("device group list should show most recent first"):
+            dg_recent = self._create_device_group(name="Recent")
+            dg_old = self._create_device_group(name="Oldest")
+            old_date = timezone.now() - timedelta(days=2)
+            DeviceGroup.objects.filter(pk=dg_old.pk).update(created=old_date)
+            response = self.client.get(path)
+            self.assertEqual(response.status_code, 200)
+            returned_ids = [group["id"] for group in response.data["results"]]
+            expected_order = [str(dg_recent.pk), str(dg.pk), str(dg_old.pk)]
+            self.assertEqual(returned_ids, expected_order)
 
     def test_devicegroup_list_api_filter(self):
         org1 = self._create_org()

openwisp_controller/connection/api/views.py

@@ -53,7 +53,12 @@ def get_parent_queryset(self):
         )
 
     def get_queryset(self):
-        return super().get_queryset().filter(device_id=self.kwargs["device_id"])
+        return (
+            super()
+            .get_queryset()
+            .filter(device_id=self.kwargs["device_id"])
+            .order_by("-created")
+        )
 
     def get_serializer_context(self):
         context = super().get_serializer_context()

openwisp_controller/connection/tests/test_api.py

@@ -5,6 +5,7 @@
 from django.contrib.auth.models import Permission
 from django.test import TestCase
 from django.urls import reverse
+from django.utils.timezone import now, timedelta
 from packaging.version import parse as parse_version
 from rest_framework import VERSION as REST_FRAMEWORK_VERSION
 from rest_framework.exceptions import ErrorDetail
@@ -125,6 +126,13 @@ def test_command_list_api(self):
             self.assertIn("device", command_obj)
             self.assertIn("connection", command_obj)
 
+        with self.subTest("Test results ordering, recent first"):
+            response = self.client.get(url)
+            self.assertEqual(response.status_code, 200)
+            created_list = [cmd["created"] for cmd in response.data["results"]]
+            sorted_created_list = sorted(created_list, reverse=True)
+            self.assertEqual(created_list, sorted_created_list)
+
     def test_command_create_api(self):
         def test_command_attributes(self, payload):
             self.assertEqual(command_qs.count(), 1)
@@ -392,6 +400,16 @@ def test_get_credentials_list(self):
         with self.assertNumQueries(4):
             response = self.client.get(path)
         self.assertEqual(response.status_code, 200)
+        with self.subTest("Check ordering of credentials"):
+            cred_old = self._create_credentials(name="Old Credential")
+            cred_old.created = now() - timedelta(days=1)
+            cred_old.save()
+            self._create_credentials(name="Newest Credential")
+            response = self.client.get(path)
+            self.assertEqual(response.status_code, 200)
+            created_list = [cred["created"] for cred in response.data["results"]]
+            sorted_created = sorted(created_list, reverse=True)
+            self.assertEqual(created_list, sorted_created)
 
     def test_filter_credentials_list(self):
         cred_1 = self._create_credentials(name="Credential One")
@@ -483,6 +501,19 @@ def test_get_deviceconnection_list(self):
             response = self.client.get(path)
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response.data["count"], 0)
+        with self.subTest("Check ordering of device connections"):
+            self._create_config(device=d1)
+            creds = [self._create_credentials(name=f"Cred {i}") for i in range(3)]
+            creds[0].created = now() - timedelta(days=1)
+            creds[0].save()
+            for cred in creds:
+                DeviceConnection.objects.create(device=d1, credentials=cred)
+            response = self.client.get(path)
+            print(response.data)
+            self.assertEqual(response.status_code, 200)
+            created_list = [conn["created"] for conn in response.data["results"]]
+            sorted_created = sorted(created_list, reverse=True)
+            self.assertEqual(created_list, sorted_created)
 
     def test_post_deviceconnection_list(self):
         d1 = self._create_device()