From 7700664f811764b258634becddcf27419f67407d Mon Sep 17 00:00:00 2001
From: jhyns <jhynsoo@gmail.com>
Date: Fri, 16 Jun 2023 16:36:27 +0900
Subject: [PATCH] Add PostListSerializer

---
 market/models.py      |  7 +++++--
 market/serializers.py | 27 +++++++++++++++++++++++++++
 market/viewsets.py    |  4 ++++
 3 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/market/models.py b/market/models.py
index 2652638..e846158 100644
--- a/market/models.py
+++ b/market/models.py
@@ -56,7 +56,7 @@ class Post(models.Model):
         ordering = ["-written_at"]
 
     def __str__(self):
-        return self.product.name
+        return f"{self.product} : {self.author} : {self.written_at}"
 
 
 class Image(models.Model):
@@ -65,5 +65,8 @@ class Image(models.Model):
     )
     image = models.ImageField(upload_to="images", blank=True, null=True)
 
+    class Meta:
+        ordering = ["-pk"]
+
     def __str__(self):
-        return self.post.product.name
+        return f"{self.post}"
diff --git a/market/serializers.py b/market/serializers.py
index 3ef21da..659ef78 100644
--- a/market/serializers.py
+++ b/market/serializers.py
@@ -44,6 +44,33 @@ class ImageSerializer(ModelSerializer):
         fields = ("image",)
 
 
+class PostListSerializer(ModelSerializer):
+    product = ProductListSerializer(read_only=True)
+    nickname = serializers.CharField(source="author.nickname")
+    image = serializers.SerializerMethodField()
+    storage = serializers.CharField(source="storage.storage")
+
+    class Meta:
+        model = Post
+        fields = (
+            "id",
+            "product",
+            "storage",
+            "price",
+            "text",
+            "nickname",
+            "status",
+            "written_at",
+            "image",
+        )
+
+    def get_image(self, obj):
+        first_image = obj.images.first()
+        return ImageSerializer(
+            instance=first_image, context=self.context
+        ).data["image"]
+
+
 class PostSerializer(ModelSerializer):
     product = ProductListSerializer(read_only=True)
     nickname = serializers.CharField(source="author.nickname")
diff --git a/market/viewsets.py b/market/viewsets.py
index 740465c..07d37a3 100644
--- a/market/viewsets.py
+++ b/market/viewsets.py
@@ -10,6 +10,7 @@ from market.serializers import (
     BrandSerializer,
     ProductSerializer,
     PostSerializer,
+    PostListSerializer,
 )
 
 
@@ -53,6 +54,9 @@ class PostViewset(ActionBasedMixin, ModelViewSet):
         .prefetch_related("images")
     )
     serializer_class = PostSerializer
+    serializer_class_map = {
+        "list": PostListSerializer,
+    }
     permission_classes = [IsAuthenticated, IsAuthorOrReadOnly]
     permission_classes_map = {
         "list": [AllowAny],