我在做 POST 時遇到問題。條目已創建（我可以在 django 管理面板中看到它）但 DRF 給我一個錯誤
/api/v1/reviews/ 處的 AttributeError
'Review' 物件沒有屬性 'review_score'
review_score 在前端需要的 serializer.py 中包含一個 SerializerMethodField（GET 作業正常）
模型.py
class Review(models.Model):
company = models.ForeignKey(Company, related_name='company_review', on_delete=models.CASCADE)
title = models.CharField(max_length=255)
comments = models.TextField()
validated = models.BooleanField(default=False)
note_quality = models.DecimalField(max_digits=5, decimal_places=2)
note_timing = models.DecimalField(max_digits=5, decimal_places=2)
note_qualprix = models.DecimalField(max_digits=5, decimal_places=2)
note_react = models.DecimalField(max_digits=5, decimal_places=2)
note_followup = models.DecimalField(max_digits=5, decimal_places=2)
note_clean = models.DecimalField(max_digits=5, decimal_places=2)
created_at = models.DateField(auto_now_add=True)
created_by = models.ForeignKey(User, related_name='created_review', on_delete=models.CASCADE)
def __str__(self):
return self.title
視圖.py
class ReviewViewSet(viewsets.ModelViewSet):
serializer_class = ReviewSerializer
queryset = Review.objects.all()
def get_queryset(self):
company_id = self.request.query_params.get('company_id', None)
return self.queryset.filter(company_id=company_id, validated=True).annotate(
review_score = Sum(F('note_quality') F('note_timing') F('note_qualprix') F('note_react') F('note_followup') F('note_clean'))/6,
)
def perform_create(self, serializer):
obj = serializer.save(created_by=self.request.user)
序列化程式.py
class ReviewSerializer(serializers.ModelSerializer):
created_by = UserCreateSerializer(read_only=True)
review_score = serializers.SerializerMethodField()
def get_review_score(self, obj):
rounded = round_up(obj.review_score, 0.5)
return rounded
class Meta:
model = Review
read_only_fields = ('created_at'),
fields = ('id','company','title','comments','validated','note_quality','note_timing','note_qualprix','note_react','note_followup','note_clean','created_at', 'created_by', 'review_score')
uj5u.com熱心網友回復：
review_score在 ReviewSerializer 應該是一個serializers.ReadOnlyField(). 改變它，它應該可以作業。
uj5u.com熱心網友回復：
你應該洗掉行
obj.save()
在perform_create函式中。模型保存已經在生產線上進行
obj = serializer.save(created_by=self.request.user)
轉載請註明出處，本文鏈接：https://www.uj5u.com/net/396956.html
標籤：Python 姜戈 Django 休息框架 django 序列化器