我一直在使用名为 ModelChoiceField 的表单字段并通过所有对象进行查询,但这并不完全是我打算使用它的目的。
class PictureForm(forms.ModelForm):
Whiteboard = forms.ModelChoiceField(queryset=Whiteboard.objects.all())
我一直在尝试使用 ModelChoiceField 查询属于特定用户的所有 WhiteBoard 对象
Whiteboard = forms.ModelChoiceField(queryset=Whiteboard.objects.filter(user=request.user))
但我发现请求没有传递到 ModelForm 。我一直在寻找各种解决方案,一个解决方案是覆盖表单的init()
这可能是与我的问题相关的最接近的问题如何在 Django 的 ModelForm 中使用请求 https://stackoverflow.com/questions/8841502/how-to-use-the-request-in-a-modelform-in-django
这是他的解决方案。如果他的解决方案是覆盖视图中的查询集。他如何在 forms.py 中创建没有查询集的 ModelChoiceField
就我而言,我想按用户过滤所有白板。我怎样才能做到呢?
我的模块的一部分
class Whiteboard(models.Model):
Category =models.CharField(max_length=30,choices=CATEGORY)
user = models.ForeignKey(User)
name = models.CharField(max_length=100)
picture = models.OneToOneField('Picture',related_name='picture',blank=True,null=True)
def __unicode__(self):
return self.name
class Picture(models.Model):
user = models.ForeignKey(User)
Whiteboard = models.ForeignKey(Whiteboard,blank=False,null=False,related_name='board')
image = models.FileField(upload_to="images/",blank=True)
description = models.TextField()
is_primary = models.BooleanField(default=False)
def __unicode__(self):
return self.description
我的观点.py
def PictureCreator(request):
if not request.user.is_authenticated():
return HttpResponseRedirect(reverse('world:LoginRequest'))
if request.method == "POST":
form = PictureForm(request.POST , request.FILES)
if form.is_valid():
picture = Picture(user=request.user)
image = request.FILES.get('image')
if image:
picture.image = form.cleaned_data['image']
description = form.cleaned_data['description']
if description:
picture.description = form.cleaned_data['description']
if board:
picture.board = form.cleaned_data['board']
picture.save()
board = Whiteboard.objects.get(Whiteboard=picture.board)
the_id = board.id
return HttpResponseRedirect(reverse('world:Boat', kwargs={'animal_id': the_id }))
return render(request,'picture.html',{'form':PictureForm()})
图片.html
<form method="POST" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<input type = "submit" value= "Add Picture" />
</form>