debug4

backend/competition/serializers.py

@@ -39,15 +39,29 @@ class CompetitionEnrollmentSerializer(serializers.ModelSerializer):
 
 class ProjectFileSerializer(serializers.ModelSerializer):
     file_url_display = serializers.SerializerMethodField()
+    file_size_display = serializers.SerializerMethodField()
     
     class Meta:
         model = ProjectFile
-        fields = ['id', 'project', 'file_type', 'file', 'file_url', 'name', 'created_at', 'file_url_display']
+        fields = ['id', 'project', 'file_type', 'file', 'file_url', 'file_size', 'name', 'created_at', 'file_url_display', 'file_size_display']
 
     def get_file_url_display(self, obj):
         if obj.file:
             return obj.file.url
         return obj.file_url
+    
+    def get_file_size_display(self, obj):
+        if not obj.file_size:
+            return None
+        size = obj.file_size
+        if size < 1024:
+            return f"{size} B"
+        elif size < 1024 * 1024:
+            return f"{size / 1024:.1f} KB"
+        elif size < 1024 * 1024 * 1024:
+            return f"{size / (1024 * 1024):.1f} MB"
+        else:
+            return f"{size / (1024 * 1024 * 1024):.2f} GB"
 
     def validate_file(self, value):
         if not value:
@@ -87,6 +101,8 @@ class ProjectFileSerializer(serializers.ModelSerializer):
             if not validated_data.get('name'):
                 validated_data['name'] = file_obj.name
             
+            validated_data['file_size'] = file_obj.size
+            
             try:
                 from ai_services.services import AliyunTingwuService
                 service = AliyunTingwuService()