finish

backend/competition/serializers.py

@@ -27,12 +27,16 @@ class CompetitionSerializer(serializers.ModelSerializer):
 
 class CompetitionEnrollmentSerializer(serializers.ModelSerializer):
     user = WeChatUserSerializer(read_only=True)
+    competition_title = serializers.SerializerMethodField()
     
     class Meta:
         model = CompetitionEnrollment
-        fields = ['id', 'competition', 'user', 'role', 'status', 'created_at']
+        fields = ['id', 'competition', 'competition_title', 'user', 'role', 'status', 'created_at']
         read_only_fields = ['status']
 
+    def get_competition_title(self, obj):
+        return obj.competition.title if obj.competition else ''
+
 class ProjectFileSerializer(serializers.ModelSerializer):
     file_url_display = serializers.SerializerMethodField()