sync from local backup

app/serializers.py

@@ -0,0 +1,21 @@
+from rest_framework import serializers
+from .models import Changelog
+
+
+class ChangelogSerializer(serializers.ModelSerializer):
+    """更新日志序列化器"""
+
+    update_type_display = serializers.CharField(
+        source='get_update_type_display',
+        read_only=True
+    )
+
+    class Meta:
+        model = Changelog
+        fields = [
+            'id', 'version', 'title', 'description',
+            'update_type', 'update_type_display',
+            'published_at', 'is_published',
+            'created_at', 'updated_at',
+        ]
+        read_only_fields = ['created_at', 'updated_at']