将 first_name，last_name 传递给 User.objects.create_user() Django

Question

我正在尝试使用他们的名字、姓氏、用户名、电子邮件和密码来注册用户。我在 Django 文档中的 create_user 中看到 first_name 和 last_name 包含在用户模型的默认字段中。但是，当我尝试提交注册表时，我收到一条错误消息，提示 “create_user() 需要 2 到 4 个位置参数，但给出了 6 个”。我的代码有什么问题？

无论如何，这可以在不创建自定义用户模型的情况下解决吗？ 如何将 first_name 和 last_name 传递给 create_user() ？

forms.py：

from django import forms
from django.contrib.auth import get_user_model

User = get_user_model()

class RegisterForm(forms.Form):
    first_name = forms.CharField()
    last_name = forms.CharField()
    username = forms.CharField()
    email = forms.EmailField()
    password = forms.CharField(widget=forms.PasswordInput)
    password2 = forms.CharField(label='Confirm password', widget=forms.PasswordInput)

    def clean_username(self):
        username = self.cleaned_data.get('username')
        qs = User.objects.filter(username=username)
        if qs.exists():
            raise forms.ValidationError("Username is taken")
        return username

    def clean_email(self):
        email = self.cleaned_data.get('email')
        qs = User.objects.filter(email=email)
        if qs.exists():
            raise forms.ValidationError("email is taken")
        return email

    def clean(self):
        data = self.cleaned_data
        password = self.cleaned_data.get('password')
        password2 = self.cleaned_data.get('password2')
        if password2 != password:
            raise forms.ValidationError("Passwords must match.")
        return data

views.py：

from django.contrib.auth import authenticate, login, get_user_model
from django.http import HttpResponse
from django.shortcuts import render, redirect

from .forms import LoginForm, RegisterForm

User = get_user_model()

def register_page(request):
    register_form = RegisterForm(request.POST or None)
    context = {
        "register_form": register_form
    }

    if register_form.is_valid():
        username = register_form.cleaned_data.get("username")
        first_name = register_form.cleaned_data.get("first_name")
        last_name = register_form.cleaned_data.get("last_name")
        email = register_form.cleaned_data.get("email")
        password = register_form.cleaned_data.get("password")

        new_user = User.objects.create_user(username, email, password, first_name, last_name)

    return render(request, "auth/register.html", context)

Answer 1

您需要将它们作为关键字参数传递，以便它具有与值一起使用的字段名称。

new_user = User.objects.create_user(
    username, email, password, 
    first_name=first_name,
    last_name=last_name,
)

Answer 2

create_user(username, email=None, password=None, **extra_fields) 

**extra_fields ar 关键字参数意味着您应该将它们传递为 first_name=first_name

阅读本文，它可能会有所帮助： https://docs.djangoproject.com/en/2.1/ref/contrib/auth/#django.contrib.auth.models.User