fix: 파일의 URL을 응답하도록 수정

Author: MU-Software

app/admin_api/serializers/event/presentation.py

@@ -2,6 +2,7 @@
 from core.const.serializer import COMMON_ADMIN_FIELDS
 from core.serializer.base_abstract_serializer import BaseAbstractSerializer
 from core.serializer.json_schema_serializer import JsonSchemaSerializer
+from django.core.files.storage import storages
 from event.presentation.models import Presentation, PresentationCategory, PresentationSpeaker, PresentationType
 from file.models import PublicFile
 from participant_portal_api.models import ModificationAudit
@@ -73,16 +74,19 @@ class Meta:
                     model = UserExt
                     fields = ("id", "nickname_ko", "nickname_en")
 
-            user = UserSerializer(read_only=True)
-            image = serializers.FileField(read_only=True, allow_null=True, source="image.file")
+            user = UserSerializer()
+            image = serializers.SerializerMethodField()
 
             class Meta:
                 model = PresentationSpeaker
                 fields = ("id", "user", "image", "biography_ko", "biography_en")
 
-        type = serializers.CharField(read_only=True, source="type.name_ko")
-        categories = serializers.SerializerMethodField(read_only=True)
-        speakers = PresentationSpeakerSerializer(read_only=True, many=True)
+            def get_image(self, obj: UserExt) -> str | None:
+                return storages["public"].path(obj.image.file) if obj.image else None
+
+        type = serializers.CharField(source="type.name_ko")
+        categories = serializers.SerializerMethodField()
+        speakers = PresentationSpeakerSerializer(many=True)
 
         class Meta:
             model = Presentation

app/admin_api/serializers/user.py

@@ -6,6 +6,7 @@
 from core.serializer.base_abstract_serializer import BaseAbstractSerializer
 from core.serializer.json_schema_serializer import JsonSchemaSerializer
 from core.serializer.read_only_serializer import ReadOnlyModelSerializer
+from django.core.files.storage import storages
 from participant_portal_api.models import ModificationAudit
 from rest_framework import serializers
 from user.models import UserExt
@@ -46,8 +47,7 @@ class Meta:
             fields = ("id", "image", "email", "nickname_ko", "nickname_en")
 
         def get_image(self, obj: UserExt) -> str | None:
-            # I don't know why, but serializers.FileField(source="image.file") does not work here.
-            return obj.image.file if obj.image else None
+            return storages["public"].path(obj.image.file) if obj.image else None
 
     modification_audit = ModificationAuditResponseAdminSerializer(source="*")
     original = UserSerializer(source="fake_original_instance")