From f5b20801bc01a2122a68ec5798ef567c40cff22d Mon Sep 17 00:00:00 2001
From: Zack Krida <zackkrida@pm.me>
Date: Wed, 7 Sep 2022 13:26:22 -0400
Subject: [PATCH] Init

---
 api/catalog/api/constants/field_order.py         | 1 +
 api/catalog/api/controllers/search_controller.py | 4 ++++
 api/catalog/api/serializers/media_serializers.py | 5 +++++
 3 files changed, 10 insertions(+)

diff --git a/api/catalog/api/constants/field_order.py b/api/catalog/api/constants/field_order.py
index a67f4b17f..3f3acccbe 100644
--- a/api/catalog/api/constants/field_order.py
+++ b/api/catalog/api/constants/field_order.py
@@ -5,6 +5,7 @@
 
 json_fields = [
     "id",
+    "created_on",
     "title",
     "foreign_landing_url",
     "url",
diff --git a/api/catalog/api/controllers/search_controller.py b/api/catalog/api/controllers/search_controller.py
index 1dcb5e90d..87cf84477 100644
--- a/api/catalog/api/controllers/search_controller.py
+++ b/api/catalog/api/controllers/search_controller.py
@@ -383,6 +383,10 @@ def search(
     # Route users to the same Elasticsearch worker node to reduce
     # pagination inconsistencies and increase cache hits.
     s = s.params(preference=str(ip), request_timeout=7)
+
+    # Sort by new
+    s = s.sort({"created_on": {"order": "desc"}})
+
     # Paginate
     start, end = _get_query_slice(s, page_size, page, filter_dead)
     s = s[start:end]
diff --git a/api/catalog/api/serializers/media_serializers.py b/api/catalog/api/serializers/media_serializers.py
index 09d4b003c..0b5712d12 100644
--- a/api/catalog/api/serializers/media_serializers.py
+++ b/api/catalog/api/serializers/media_serializers.py
@@ -280,6 +280,7 @@ class Meta:
         model = AbstractMedia
         fields = [
             "id",
+            "created_on",
             "title",
             "foreign_landing_url",
             "url",
@@ -308,6 +309,10 @@ class Meta:
         source="identifier",
     )
 
+    created_on = serializers.DateField(
+        help_text="The timestamp of when the media was added to Openverse.",
+    )
+
     tags = TagSerializer(
         allow_null=True,  # replaced with ``[]`` in ``to_representation`` below
         many=True,