我无法使用CreateView创建对象SELECT DIS.iDataItemID,
DIS.iDataItemCurrentStatusID,
COUNT(*) ,
DI.iDataTypeID,
DI.iEmployeeID,
DI.iEmployerID
FROM DataItem DI INNER JOIN DataItemStatus DIS
ON DI.iDataItemID = DIS.iDataItemID Where iDataItemCurrentStatusID = 1
GROUP BY DIS.iDataItemID, DIS.iDataItemCurrentStatusID, DI.iDataTypeID,
DI.iEmployeeID, DI.iEmployerID
,我不确定自己做错了什么。下面是一个简短的介绍
简介:“我的订单历史记录”页面上,用户可以看到他/她购买的所有商品。在“订单历史记录”页面中,我有一个按钮,可让买方为卖方留下评论。下面是按钮
review
从这里我获得商品item.id和卖家用户名
<a href="{% url 'accounts:review' username=item.made_by pk=item.pk %}">
<button class="text-success">Leave Review</button>
</a>
当我单击留下评论时,该URL在地址栏中正确表达。然后显示一个表格。我在其中输入{% for item in order.items_in_this_order.all %} <!--models below -->
url(r'^(?P<username>[-\w]+)/(?P<pk>\d+)/review/$', views.ReviewCreate.as_view(), name='review'),
{% endfor %}
,feedback
,ratings
,feedback_image
的其他字段应该在views.py中进行。在我填写表格并点击提交后。网址仍然正确。但出现以下错误
feedback_video
下面是 views.py ,它位于帐户应用内
IntegrityError at /accounts/nikhil/10/review/
NOT NULL constraint failed: accounts_review.item_id
Request Method: POST
Request URL: http://127.0.0.1:8000/accounts/nikhil/10/review/
Django Version: 1.11
Exception Type: IntegrityError
Exception Value:
NOT NULL constraint failed: accounts_review.item_id
下面是审阅模型
的 models.pyclass ReviewCreate(LoginRequiredMixin, CreateView):
model = Review
form_class = ReviewCreateForm
def form_valid(self, form):
self.object = form.save(commit=False)
self.object.review_from = self.request.user
print(self.object.review_from) #This prints
self.item = OrderItem.objects.get(pk=self.kwargs.get('pk'))
print(self.item) #This prints
self.object.review_for = User.objects.get(username=self.kwargs.get('username'))
print(self.object.review_for) #This prints
self.object.save()
return super().form_valid(form)
以下是 OrderItem 的 models.py ,以防万一
class Review (models.Model):
review_from = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, related_name='review_from')
review_for = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, related_name='review_for')
item = models.ForeignKey(OrderItem, related_name='items')
created = models.DateTimeField(auto_now_add=True)
feedback = models.TextField(blank=True, null=True)
feedback_image = models.ImageField(blank=True, null=True)
feedback_video = models.FileField(blank=True, null=True)
rating_choices = (
('1', 'One'), ('2', 'Two'), ('3', 'Three'), ('4', 'Four'), ('5', 'Five'),
('6', 'Six'), ('7', 'Seven'), ('8', 'Eight'), ('9', 'Nine'), ('10', 'Ten')
)
ratings = models.CharField(max_length=2, choices=rating_choices)
def __str__(self):
return 'Review from {} to {} for {}'.format(self.review_from, self.review_for, self.item.product)
答案 0 :(得分:2)
您的form_valid方法很奇怪。除其他外,您可以将项目设置为self.item
,该项目在任何地方都不会使用,当然也不会在创建的实例上进行设置。此外,您可以直接在此处创建并保存对象,然后调用超类方法,无需添加任何内容即可再次执行该操作。
相反,您应该在form.instance
上设置所有这些属性,然后让super方法进行保存:
def form_valid(self, form):
form.instance.review_from = self.request.user
form.instance.item = OrderItem.objects.get(pk=self.kwargs.get('pk'))
form.instance.review_for = User.objects.get(username=self.kwargs.get('username'))
return super().form_valid(form)