Question

我正在更新现有记录，但每次我都这样做，它就是说 Truncated incorrect DOUBLE value: 'user1' 我在这里粘贴我的观点和模型。请帮帮我

模型

class BasicDetails(models.Model):
   username = models.OneToOneField(User)
   name = models.CharField(max_length = 100, verbose_name = "Name")
   sex = models.CharField(max_length = 10, verbose_name = "Sex", choices = GENDER_CHOICES)
   dob = models.DateField(verbose_name = "Date of Birth")

   class Meta:
      db_table = u'wed_basicdetails'
   def __unicode__(self):
         return u'%s' % (self.username)

查看

def editbasicdetails(request):
  if request.method == 'POST':
      username = User.objects.filter(username = request.user)
      instance = get_object_or_404(User, username = username)
      form = EditBasicDetailsForm(request.POST,instance=instance)
      if form.is_valid():
          form.save()
      return HttpResponseRedirect('/myprofile/')
  else:
      form = EditBasicDetailsForm(request.user)
  return shortcuts.render_to_response('editbasicdetails.html',locals(),
                                    context_instance = context.RequestContext(request))

模型表格

class EditBasicDetailsForm(forms.ModelForm):
  def __init__(self,user, *args, **kwargs):
      super(EditBasicDetailsForm, self).__init__(*args, **kwargs)

      userid = User.objects.filter(username = user).values('id')[0].get('id')
      self.fields['username'] = forms.CharField(initial = user,
                                              widget = forms.TextInput(attrs = {'readonly':'readonly'}))
  class Meta:
      model = BasicDetails

在上面的视图中，我没有传递用户名我只是从request.user获取用户名值我不知道我在这个简单的功能上做错了什么。

-Vikram

Answer 1

错误可能与表单wrt模型的不一致行为有关。因为，数据库将OneToOneField存储为整数，将CharField存储为varchar。

您不必覆盖表单 init 方法。你可以直接用初始参数来做。

form = EditBasicDetailsForm(initial = {'username' : request.user)

更新

在您的视图代码中，我建议您正确地打算使用HttpResponseRedirect语句。否则，如果表单有效，则不会再次显示。

if form.is_valid():
          form.save()
          return HttpResponseRedirect('/myprofile/')

使用django中的模型表单更新记录

1 个答案: