main image selections

backend/api/serializers/_helpers.py

@@ -1,5 +1,7 @@
 from typing import Any
 
+from django.conf import settings
+
 
 def absolute_image_url(serializer: Any, image_field: Any) -> str | None:
     if not image_field:
@@ -8,3 +10,14 @@ def absolute_image_url(serializer: Any, image_field: Any) -> str | None:
     if request:
         return request.build_absolute_uri(image_field.url)
     return image_field.url
+
+
+def absolute_media_url(serializer: Any, rel_path: str | None) -> str | None:
+    if not rel_path:
+        return None
+    media_url = settings.MEDIA_URL.rstrip("/") + "/"
+    url = media_url + rel_path.lstrip("/")
+    request = serializer.context.get("request")
+    if request:
+        return request.build_absolute_uri(url)
+    return url