Question

views.py

form = StudentTaskForm(request.POST or None, request.FILES or None)

if form.is_valid():
    form.instance.user = User.objects.get(id=request.user.id)

    obj = form.save(commit=False)
    obj.student = request.user
    obj.todo = qs
    obj.level = instance
    obj.save()



ImageFormSet = modelformset_factory(Images,
                                        form=ImageForm,min_num=0,
                                 max_num=3,  validate_min=True,extra=3)

if request.method == 'POST':
    formset = ImageFormSet(request.POST, request.FILES,
                           queryset=Images.objects.none())
    if formset.is_valid():
       for form in formset.cleaned_data:
         try:
          image = form['image']

          Images.objects.create(post=todo[0],image=image)
         except KeyError:
             pass
       return redirect('student:dashboard')
else:
    formset = ImageFormSet(queryset=Images.objects.none())

forms.py：

class StudentTaskForm(forms.ModelForm):
 title = forms.CharField(widget=forms.TextInput(attrs={'class': 'form- 
 control',' type': "text",'placeholder':'Enter Title'}))
 content = forms.CharField(widget=SummernoteWidget())


 class Meta:
    model = Task
    fields = [
        'title',
        'content',

    ]
    widgets = {
        'content': SummernoteWidget(),
    }

 def clean_object(self):
    instance = self.instance

class ImageForm(forms.ModelForm):
 image = forms.ImageField(label='Image')
 class Meta:
    model = Images
    fields = ('image', )

我使用表单集保存图像。一个任务最多可以包含三张图像。

在models.py中，我有：

 class Task(models.Model):
  level = models.ForeignKey(Level, on_delete=models.CASCADE)
  todo = models.ForeignKey(ToDo, 
  on_delete=models.CASCADE,related_name='todo')
  student = models.ForeignKey(User, on_delete=models.CASCADE)
  title = models.CharField(max_length=150)
  content = models.TextField()
  timestamp = models.TimeField(auto_now=True)
  datestamp = models.DateField( auto_now=True)
  like = 
  models.ManyToManyField(User,related_name='user_likes',blank=True)
  is_verified=models.BooleanField(default=False,blank=True)
   def __str__(self):
     return self.title

   def get_absolute_url(self):
     return reverse('student:dashboard')
   objects = PostManager()

   @property
    def comments(self):
     instance = self
     qs = Comment.objects.filter_by_instance(instance)
     return qs

   @property
     def get_content_type(self):
     instance = self
     content_type = 
     ContentType.objects.get_for_model(instance.__class__)
    return content_type


 class Images(models.Model):
  post = models.ForeignKey(Task, 
  default=None,on_delete=models.CASCADE)
  image = models.ImageField(verbose_name='Image',blank=True)

   def __str__(self):
     return self.post.title

我正在创建另一个模型来保存属于特定任务的图像提交表单时如何定位帖子？

Images.objects.create(post=todo[0],image=image)

我很困惑在post =中输入什么？通过模型的定义，帖子是任务对象的外键。我希望该任务对象成为当前从StudentTaskForm提交表单模型的模型。

Answer 1

您应该使用CLICK TO SEE THE ACTIVITY WHERE THE DOWNLOAD URL OF THE IMAGE UPLOADED TO THE FIREBASE STORAGE IS REQUIRED.，它将为您处理此问题。

ImageFormSet = inlineformset_factory(Task, Images,
                                     form=ImageForm, min_num=0,
                                     max_num=3, validate_min=True, extra=3)

formset = ImageFormSet(request.POST, request.FILES, instance=obj)
if formset.is_valid():
    formset.save()

这里根本不需要迭代。

提交表单Django时参考当前模型

1 个答案: