From 2f4cceaa6aaf455096a633bd9b19a5b642658495 Mon Sep 17 00:00:00 2001
From: Egor fureunoir Gorbunov <contact@fureunoir.com>
Date: Tue, 9 Sep 2025 15:30:05 +0300
Subject: [PATCH] Features: 1) Add `hreflang` to metadata response across
 viewsets; 2) Update GraphQL schema to use `hreflang` as a string instead of a
 list.

Fixes: 1) Correct `hreflang` field type in serializers and GraphQL object types.

Extra: Refactor redundant `hreflang` handling; ensure uniform `LANGUAGE_CODE` usage throughout.
---
 core/graphene/object_types.py | 8 ++++----
 core/serializers/seo.py       | 2 +-
 core/viewsets.py              | 3 +++
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/core/graphene/object_types.py b/core/graphene/object_types.py
index 9bfedf9a..1106fd63 100644
--- a/core/graphene/object_types.py
+++ b/core/graphene/object_types.py
@@ -68,7 +68,7 @@ class SEOMetaType(ObjectType):
     open_graph = GenericScalar()
     twitter = GenericScalar()
     json_ld = List(GenericScalar)
-    hreflang = List(GenericScalar)
+    hreflang = String()
 
 
 class AttributeType(DjangoObjectType):
@@ -173,7 +173,7 @@ class BrandType(DjangoObjectType):
             "open_graph": og,
             "twitter": tw,
             "json_ld": json_ld,
-            "hreflang": [],
+            "hreflang": info.context.LANGUAGE_CODE,
         }
 
 
@@ -336,7 +336,7 @@ class CategoryType(DjangoObjectType):
             "open_graph": og,
             "twitter": tw,
             "json_ld": json_ld,
-            "hreflang": [],
+            "hreflang": info.context.LANGUAGE_CODE,
         }
 
 
@@ -590,7 +590,7 @@ class ProductType(DjangoObjectType):
             "open_graph": og,
             "twitter": tw,
             "json_ld": json_ld,
-            "hreflang": [],
+            "hreflang": info.context.LANGUAGE_CODE,
         }
 
 
diff --git a/core/serializers/seo.py b/core/serializers/seo.py
index 780d25a5..046fa1c7 100644
--- a/core/serializers/seo.py
+++ b/core/serializers/seo.py
@@ -7,7 +7,7 @@ class SeoSnapshotSerializer(Serializer):
     description = CharField()
     canonical = CharField()
     robots = CharField()
-    hreflang = ListField(child=DictField(), required=False)
+    hreflang = CharField()
     open_graph = DictField()
     twitter = DictField()
     json_ld = ListField(child=DictField())
diff --git a/core/viewsets.py b/core/viewsets.py
index df27c738..cc802cc8 100644
--- a/core/viewsets.py
+++ b/core/viewsets.py
@@ -369,6 +369,7 @@ class CategoryViewSet(EvibesViewSet):
             "description": description,
             "canonical": canonical,
             "robots": "index,follow",
+            "hreflang": request.LANGUAGE_CODE,
             "open_graph": og,
             "twitter": tw,
             "json_ld": json_ld,
@@ -492,6 +493,7 @@ class BrandViewSet(EvibesViewSet):
             "description": description,
             "canonical": canonical,
             "robots": "index,follow",
+            "hreflang": request.LANGUAGE_CODE,
             "open_graph": og,
             "twitter": tw,
             "json_ld": json_ld,
@@ -618,6 +620,7 @@ class ProductViewSet(EvibesViewSet):
             "description": description,
             "canonical": canonical,
             "robots": "index,follow",
+            "hreflang": request.LANGUAGE_CODE,
             "open_graph": og,
             "twitter": tw,
             "json_ld": json_ld,