Django窗体无法运行form.is_valid

我正在使用Django自定义窗体：我调试过那个form.is_valid函数没有运行，即使所有的数据都进入了视图。Django窗体无法运行form.is_valid

models.py

choices = (
    ('yes', 'Yes'), 
    ('no', 'No'), 
    ('not sure', 'Not Sure'), 
) 
class TaggedArticle(models.Model): 
    user = models.ForeignKey(User, related_name='tagging') 
    category_fit = models.CharField(choices=choices, max_length=255) 
    article = models.ForeignKey(Article, related_name='articles') 
    relevant_feedback = models.TextField(blank=True) 
    created_at = models.DateTimeField(default=timezone.now, editable=False)

forms.py

class TagForm(forms.ModelForm): 
    class Meta: 
     model = TaggedArticle 
     fields = ('user', 'category_fit', 'article', 'relevant_feedback') 
     widgets = { 
      'category_fit': forms.RadioSelect() 
     }

views.py

def post(self, request, *args, **kwargs): 
    if request.method == 'POST': 
     post_data = request.POST.copy() 
     post_data.update({'user': request.user.pk}) 
     form = forms.TagForm(post_data) 
     print('request recieved') 
     if form.is_valid(): 
      tag = TaggedArticle() 
      tag.user = request.user 
      article = Article.objects.all().filter(id=form.cleaned_data['article']) 
      tag.category_fit = form.cleaned_data['category_fit'] 
      tag.article = article 
      tag.relevant_feedback = form.cleaned_data['relevant_feedback'] 
      tag.save() 

     return HttpResponse('Tagged Successfully!', status=200)

更新我认为这是单选按钮错误：以下是我最模板得到这个：

<td><label class="radio-inline"><input type="radio" name="category_fit">Yes</label></td> 
<td><label class="radio-inline"><input type="radio" name="category_fit">No</label></td> 
<td><label class="radio-inline"><input type="radio" name="category_fit">Not Sure</label>

请帮助我！在此先感谢！

来源

2017-10-09 Abdul Rehman

试试：

if form.is_valid(): 
     tag = form.save(commit=False) 
     tag.user = request.user 
     tag.save() 
    else: 
     # Added else statment 
     msg = 'Errors: %s' % form.errors.as_text() 
     return HttpResponse(msg, status=400)

需要ATTR添加value您radio：

<td><label class="radio-inline"><input type="radio" name="category_fit" value="yes">Yes</label></td> 
<td><label class="radio-inline"><input type="radio" name="category_fit" value="no">No</label></td> 
<td><label class="radio-inline"><input type="radio" name="category_fit" value="not sure">Not Sure</label> 
                    <!-- ^^^^^^^^^^ -->

来源

2017-10-09 06:32:40

嗨，@Bear！它返回目标错误！ –

您的表单有错误，我更新了答案，您可以试试 –

我认为这是category_fit radio选项的错误，我如何在我的模板中使用这个单选按钮？请！ –

调用form.is_valid（后），调用form.errors和打印，要知道预期输入到表单。

form.is_valid() 
print(form.errors)

或

from django.http import HttpResponse 

form.is_valid() 
return HttpResponse(form.errors)

来源

2017-10-09 06:35:36

HttpResponse return category_fit！ –

这意味着category_fit字段存在一些问题，而获取表单数据 –

是否必须在“category_fit”中添加一些属性：forms.RadioSelect（）在我的forms.py中？ –

Django窗体无法运行form.is_valid

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