Question

最初，验证检查有效，在这种情况下，它会生成错误消息。但是，当我将继承与mixins一起使用时，就有逻辑得到一个奇怪的错误。

Views.py

class TagCreate(LoginRequiredMixin, ObjectCreateMixin, View):
    model_form = TagForm 
    template = 'blog/tag_create.html'
    raise_exception = True

Utils.py

class ObjectCreateMixin:
    model_form = None 
    template = None

    def get(self, request):
        form = self.model_form() 
        return render(request, self.template, context={'form': form})

    def post(self, request):
        bound_form = self.model_form(request.POST) 
        if bound_form.is_valid():
            new_obj = bound_form.save()  
            return redirect(new_obj) 
        return render(request, template, context={'form':bound_form}) #Here is an error in django debugger

Forms.py

class TagForm(forms.ModelForm):
    class Meta: 
        model = Tag
        fields = ['title', 'slug']

        widgets = {
        'title': forms.TextInput(attrs={'class':'form-control'}),
        'slug': forms.TextInput(attrs={'class':'form-control'}),
        }

    def clean_slug(self): 
        new_slug = self.cleaned_data['slug'].lower()

        if new_slug == 'create':
            raise ValidationError('Slug may not be "Create"') 
        if Tag.objects.filter(slug__iexact=new_slug).count(): 
            raise ValidationError('Slug must be unique. We have "{}" slug already'.format(new_slug)) 
        return new_slug

异常值：未定义名称“模板”

0 个答案: