如何在 Django 中使用 auth_user 模型和自定义模型字段创建自定义注册表单

Question

我是 django 的新手，我有带有额外状态和标题模型的自定义用户模型。到目前为止，我完成了数据库部分，如何为带有外键字段的自定义用户模型创建注册表单。我的模型 class 代码：

from django.db import models
from django.contrib.auth.models import User
from django.db.models.signals import post_save
from django.contrib.auth.models import AbstractUser

class Title(models.Model):
value = models.CharField(max_length=100, null=True, blank=True)

class Meta:
    db_table = 'title'

class Status(models.Model): 
value = models.CharField(max_length=100, null=True, blank=True)

class Meta:
    db_table = 'status'

class User(AbstractUser):

filenumber = models.CharField(max_length=9, null=True, blank=True)
personalemail = forms.EmailField(required=True)
intakeyear = models.IntegerField(null=True, blank=True)
title = models.ForeignKey(Title, on_delete=models.CASCADE, null=True, blank=True)
status = models.ForeignKey(Status, on_delete=models.CASCADE, null=True, blank=True)

我的settings.py:

AUTH_USER_MODEL = 'student.User'# changes built-in user model to ours

我如何创建用户注册表单字段，例如名字、姓氏、职务、状态、电子邮件、个人电子邮件、密码、密码确认。我向用户模型标题和状态（外键字段）和文件号、intakeyear、personalemail 添加了额外的字段

我的form.py文件：

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm, UserChangeForm
from django.forms import ModelForm

from student.models import User
from student.models import Title, Statu

class StudentNewRegistrationForm(forms.ModelForm):
title = forms.CharField(required=True)
intakeyear = forms.IntegerField(required=True)
email = forms.EmailField(required=True)
personalemail = forms.EmailField(required=True)
status = forms.CharField(required=True)


def __init__(self, *args, **kwargs):
    super(StudentNewRegistrationForm, self).__init__(*args, **kwargs)
    title = [('', 'Choose a title')]
    title.extend(Title.objects.values_list('id', 'value'))
    self.fields['title'] = forms.ChoiceField(choices=title)

    status = [('', 'Choose a status')]
    status.extend(Status.objects.values_list('id', 'value'))
    self.fields['status'] = forms.ChoiceField(choices=status)

class Meta:
    model = User
    fields = ['username','first_name','last_name','email','password1',
            'password2''title','status','intakeyear','personalemail'
    ]

def save(self, commit=True):
    user = super(StudentNewRegistrationForm, self).save(commit=False)
    user.first_name = self.cleaned_data['first_name']
    user.last_name = self.cleaned_data['last_name']
    user.email = self.cleaned_data['email']
    user.personalemail = self.cleaned_data['email']
    user.title = self.cleaned_data['title']
    user.intakeyear = self.cleaned_data['intakeyear']
    user.status = self.cleaned_data['status']
    user.password1 = self.cleaned_data['password1']
    user.password2 = self.cleaned_data['password2']

    if commit:
        user.save()
    return user

views.py:

from django.shortcuts import render, redirect
from django.urls import reverse
from django.contrib.auth.models import User
from django.contrib.auth import update_session_auth_hash
from django.contrib.auth.decorators import login_required
from .forms import StudentNewRegistrationForm

def student_new_registration(request):
  if request.method == 'POST':
    form = StudentNewRegistrationForm(request.POST)
    if form.is_valid():
        form.save()
        return redirect(reverse('student:home'))

else:
    form = StudentNewRegistrationForm()

    args = {'form': form}
    return render(request, 'student/studentnewregistrationform.html', args)

studentnewregistrationform.html:

{% extends 'base.html' %}

{% block head %}
<title>Student Registration&nbsp Form</title>
{% endblock %}

{% block body %}
<div class="container">
<form method="post">
    {% csrf_token %}
    <div class="row">
    <div class="col-sm-4">
         <h3> Student&nbsp;Registration&nbsp;Form</h3>
    </div>
    </div>
    <br>
    <div class="row">
        <div class="col-sm-2">{{ form.title.label }}</div>
        <div class="col-sm-3">{{ form.title }}</div>
        <div class="col-sm-4">{{ form.title.errors }}</div>
    </div>
     <br>
    <div class="row">
        <div class="col-sm-2">{{ form.firstname.label }}</div>
        <div class="col-sm-3">{{ form.firstname }}</div>
        <div class="col-sm-4">{{ form.firstname.errors }}</div>
    </div>
     <br>
    <div class="row">
        <div class="col-sm-2">{{ form.lastname.label }}</div>
        <div class="col-sm-3">{{ form.lastname }}</div>
        <div class="col-sm-4">{{ form.lastname.errors }}</div>
    </div>
    <br>
    <div class="row">
        <div class="col-sm-2">{{ form.email.label }}</div>
        <div class="col-sm-3">{{ form.email }}</div>
        <div class="col-sm-4">{{ form.email.errors }}</div>
    </div>
    <br>
    <div class="row">
        <div class="col-sm-2">{{ form.personalemail.label }}</div>
        <div class="col-sm-3">{{ form.personalemail }}</div>
        <div class="col-sm-4">{{ form.personalemail.errors }}</div>
    </div>
    <br>

    <br>
    <div class="row">
        <div class="col-sm-2">{{ form.intakeyear.label }}</div>
        <div class="col-sm-3">{{ form.intakeyear }}</div>
        <div class="col-sm-4">{{ form.intakeyear.errors }}</div>
    </div>
    <br>

    <div class="row">
        <div class="col-sm-2"><label for="{{ form.password1.label }}">Password</label></div>
        <div class="col-sm-3">{{ form.password1 }}</div>
        <div class="col-sm-4">{{ form.password1.errors }}</div>
    </div>
    <br>
   <div class="row">
        <div class="col-sm-2"><label for="{{ form.password2.id_for_label }}">ConfirmPassword</label></div>
        <div class="col-sm-3">{{ form.password2 }}</div>
        <div class="col-sm-4">{{ form.password2.errors }}</div>
    </div>

    <br><br>
    <div class="row">
        <div class="col-sm-2 col-sm-offset-2"> <input type="submit" name="submit" value="Submit" class="btn btn-primary"/></div>
        <div class="col-sm-2"></div>
    </div>
</form>
</div>
{% endblock %}

我在这里加载了状态和标题模型的数据固定装置，例如下拉列表，我现在不知道哪里做错了我收到错误

ValueError at /student/studentnewregistration/
Cannot assign "'100000002'": "User.title" must be a "Title" instance.

任何人都可以帮助我在此先感谢

Answer 1

因为 title 和 status 模型的字段是 ForeignKyy 你应该使用 ModelChoiceField 而不是 ChoiceField 像这样：

def __init__(self, *args, **kwargs):
    super(StudentNewRegistrationForm, self).__init__(*args, **kwargs)
    self.fields['title'] = forms.ModelChoiceField(queryset=Title.objects.all(), empty_label='Choose a title')

    self.fields['status'] = forms.ModelChoiceField(queryset=Status.objects.all(), empty_label='Choose a status')

要显示值而不是 id，只需将 __str__() 方法添加到 Status 和 Title 模型：

class Title(models.Model):
    ...
    def __str__(self):
        return.self.value

class Status(models.Model): 
    ...
    def __str__(self):
        return.self.value

如何在 Django 中使用 auth_user 模型和自定义模型字段创建自定义注册表单

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