first commit

backend/journal/serializers.py

@@ -0,0 +1,51 @@
+from rest_framework import serializers
+
+from .models import Guestbook, Memory
+
+
+def _absolute_uri(request, path: str) -> str:
+    if request is not None:
+        return request.build_absolute_uri(path)
+    return path
+
+
+class MemorySerializer(serializers.ModelSerializer):
+    """`image` 为首张 URL（兼容旧前端）；`images` 为主图 + 附加图完整列表。"""
+
+    image = serializers.SerializerMethodField()
+    images = serializers.SerializerMethodField()
+
+    class Meta:
+        model = Memory
+        fields = (
+            "id",
+            "story_order",
+            "date",
+            "event_title",
+            "main_text",
+            "unique_feature_type",
+            "nepal_art_style",
+            "image",
+            "images",
+            "is_finale",
+        )
+
+    def get_images(self, obj: Memory) -> list[str]:
+        request = self.context.get("request")
+        out: list[str] = []
+        if obj.image:
+            out.append(_absolute_uri(request, obj.image.url))
+        for p in obj.photos.all():
+            out.append(_absolute_uri(request, p.image.url))
+        return out
+
+    def get_image(self, obj: Memory) -> str | None:
+        imgs = self.get_images(obj)
+        return imgs[0] if imgs else None
+
+
+class GuestbookCreateSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = Guestbook
+        fields = ("id", "nickname", "message", "created_at")
+        read_only_fields = ("id", "created_at")