我如何在Django的卖方模型中验证唯一的手机号码

Question

我正在尝试验证模型卖家的mobileno（唯一）。但这给我带来了错误而没有执行所需的任务。
我该怎么办，以形式检查了mobileno的独特性？
以下是我的型号。py：

    class Seller(models.Model):
    mobilenno = models.DecimalField(max_digits=10, decimal_places=0, unique=True)  # Field name made lowercase.
    password = models.CharField(max_length=64)
    name = models.CharField( max_length=64)
  #  city = models.ForeignKey(City)
    address = models.CharField(max_length=512, blank=True, null=True)  # Field name made lowercase.
    phoneno = models.DecimalField(max_digits=10, decimal_places=0, blank=True, null=True)  # Field name made lowercase.

和form.py

class SellerRegistrationForm(forms.Form):
    mobileno1 = forms.DecimalField(widget=forms.TextInput(attrs=dict(required=True, max_length=30)),
                                  max_digits=10, decimal_places=0,label=_("Mobile Number"))
    password1 = forms.CharField(widget=forms.PasswordInput(attrs=dict(required=True, max_length=30, render_value=False)),
                                label=_("Password"))
    password2 = forms.CharField(widget=forms.PasswordInput(attrs=dict(required=True, max_length=30, render_value=False)),
                                label=_("Password (again)"))
    name = forms.CharField(widget=forms.TextInput(attrs=dict(required=True, max_length=30)),
                                 label=_("Seller Name"))
    address = forms.CharField(widget=forms.TextInput(attrs=dict(required=True, max_length=30)),
                                 label=_("Seller Address"))
    phoneno = forms.DecimalField(widget=forms.TextInput(attrs=dict(required=True, max_length=30)),
                                 max_digits=10, decimal_places=0, label=_("Phone Number"))
    def clean_mobileno1(self):
        try:
            Seller.objects.get(mobileno=self.cleaned_data['mobileno1'])
        except Seller.DoesNotExist:
            return self.cleaned_data['mobileno1']
        raise forms.ValidationError(_("The mobilenumber already exists. Please try another one."))
    def clean(self):
        if 'password1' in self.cleaned_data and 'password2' in self.cleaned_data:
            if self.cleaned_data['password1'] != self.cleaned_data['password2']:
                raise forms.ValidationError(_("The two password fields did not match."))
        return self.cleaned_data

views.py

def seller_register(request):
    if request.method == 'POST':
        form = SellerRegistrationForm(request.POST)
        if form.is_valid():
            Seller.objects.create(
                mobilenno=form.cleaned_data['mobileno1'],
                password=form.cleaned_data['password1'],
                name=form.cleaned_data['name'],
                address=form.cleaned_data['address'],
                phoneno=form.cleaned_data['phoneno']
            )
            return HttpResponseRedirect('/register/success/')
    else:
        form = SellerRegistrationForm()
    return render(request,'registration/register.html', {'form': form })

Answer 1

尚不清楚您遇到的错误，所以我不确定错误在哪里，但是clean_mobileno1看起来像是一个好候选人。检查mobilenno和mobileno1之间的命名一致性。

很难遵循该功能中的逻辑，您会尝试捕获"正常"用例的例外，然后如果不捕获第一个，则会引起异常，这似乎是对立的。另外，当应该将其推到数据库时，您正在对Python进行检查（您的字段定义中的unique=True应该为您执行）。

我建议您将https://github.com/stefanfoulis/django-phonenumber-bield用于电话号码，而不是Decimal。您将获得实际的电话号码验证，以及一堆非常有用的手机特定功能。后端基于Android的电话指定库，因此它倾向于保持最新状态。

您的模型变为：

from phonenumber_field.modelfields import PhoneNumberField
class Seller(models.Model):
    mobileno = PhoneNumberField(unique=True)
    ...

另外，您可能应该使用ModelForm作为表格：

class SellerRegistrationForm(forms.ModelForm):
    class Meta:
        model = Seller
    ...