Question

我正在django做一个小密码确认表。但我很困惑，因为self.cleaned_data.get('confirm_password')总是返回任何一个，因此我的密码永远不会相互匹配。

继承clean

中的forms.py方法

def clean_password(self):
    password = self.cleaned_data.get("password")
    confirm_password = self.cleaned_data.get("confirm_password")
    if password != confirm_password:
        print(password)
        print(confirm_password)
        raise forms.ValidationError(
        "Password and password confirmation does not match"
        )
    return password

self.cleaned_data.get('password')返回键入的密码，但confirm_password不会。

在清除前看到收到的数据的view.py中，confirm_password显示为

......................user = UserRegister(request.POST)
        print(request.POST.get('confirm_password'))

        if user.is_valid():
            print('valid')..........................

这可能是什么原因？

见forms.py

中的表单声明部分

first_name = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'First Name'}))
last_name = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'Last Name'}))
username = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'Username'}))
email = forms.EmailField( required=True, widget=forms.widgets.EmailInput(attrs={'placeholder': 'Email'}))
password =forms.CharField(required=True, widget=forms.widgets.PasswordInput())
confirm_password =forms.CharField(required=True, widget=forms.widgets.PasswordInput())

class Meta:
    model=User
    fields=['first_name','last_name','username','email','password','confirm_password']

Answer 1

clean_fieldname方法按字段声明的顺序调用，因此调用clean_password时cleaned_data不包含confirm_password。您可以使用clean_confirm_password方法执行此验证：

def clean_confirm_password(self):
    password = self.cleaned_data.get("password")
    confirm_password = self.cleaned_data.get("confirm_password")
    if password != confirm_password:
        print(password)
        print(confirm_password)
        raise forms.ValidationError(
        "Password and password confirmation does not match"
        )
    return password

或仅使用clean方法进行验证，需要访问多个表单字段。

Answer 2

在验证字段时调用//Thursday and Friday will be excluded as weekend. var start = this.getField("From").value; // get the start date value var end = this.getField("To").value; var end = util.scand("dd/mm/yyyy H:MM:SS", end + " 0:00:00"); var start =util.scand("dd/mm/yyyy H:MM:SS", start + " 0:00:00"); event.value = dateDifference(start, end); function dateDifference(start, end) { // Copy date objects so don't modify originals var s = new Date(+start); var e = new Date(+end); // Set time to midday to avoid daylight saving and browser quirks s.setHours(12,0,0,0); e.setHours(12,0,0,0); // Get the difference in whole days var totalDays = Math.round((e - s) / 8.64e7); // Get the difference in whole weeks var wholeWeeks = totalDays / 7 | 0; // Estimate business days as number of whole weeks * 5 var days = wholeWeeks * 5; // If not even number of weeks, calc remaining weekend days if (totalDays % 7) { s.setDate(s.getDate() + wholeWeeks * 7); while (s < e) { s.setDate(s.getDate() + 1); // If day isn't a Thursday or Friday, add to business days if (s.getDay() != 4 && s.getDay() != 5) { ++days; } } } var hdayar = ["2018/02/21","2018/03/17","2018/03/26","2018/04/14","2018/05/01","2018/08/15","2018/09/2 1","2018/10/18","2018/10/19","2018/12/16","2018/12/25"]; //test for public holidays var phdays = 0; for (var i = 0; i <hdayar.length; i++){ if ((Date.parse(hdayar[i]) >= Date.parse(start)) && (Date.parse(hdayar[i]) <= Date.parse(end))) {phdays ++;}} return days-phdays + 1; }方法。对于您正在使用的字段，您不能指望当时在cleaning_data中的任何其他字段。如果需要使用多个字段覆盖表单的clean（）方法。

Answer 3

由于您在多个字段之间进行验证，因此您应该覆盖表单的clean方法。

def clean(self):
    cleaned_data = super().clean()
    password = self.cleaned_data.get("password")
    confirm_password = self.cleaned_data.get("confirm_password")
    if password != confirm_password:
        print(password)
        print(confirm_password)
        raise forms.ValidationError(
        "Password and password confirmation does not match"
        )
    return cleaned_data

Django cleaning_data.get（'obj'）方法返回none

3 个答案: