Django窗體無法運行form.is_valid

我正在使用Django自定義窗體：我調試過那個form.is_valid函數沒有運行，即使所有的數據都進入了視圖。Django窗體無法運行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)

更新我認爲這是單選按鈕錯誤：以下是我最模板得到這個：

<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>

請幫助我！在此先感謝！

來源

2017-10-09 Abdul Rehman

試試：

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> 
                    <!-- ^^^^^^^^^^ -->

來源

2017-10-09 06:32:40

嗨，@Bear！它返回目標錯誤！ –

您的表單有錯誤，我更新了答案，您可以試試 –

我認爲這是category_fit radio選項的錯誤，我如何在我的模板中使用這個單選按鈕？請！ –

調用form.is_valid（後），調用form.errors和打印，要知道預期輸入到表單。

form.is_valid() 
print(form.errors)

或

from django.http import HttpResponse 

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

來源

2017-10-09 06:35:36

HttpResponse return category_fit！ –

這意味着category_fit字段存在一些問題，而獲取表單數據 –

是否必須在「category_fit」中添加一些屬性：forms.RadioSelect（）在我的forms.py中？ –

Django窗體無法運行form.is_valid

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