Introduction

I wanted to authenticate using django-allauth and CustomUser, but there were few Japanese articles and it was difficult to find a good English article, so I will post a commentary and a program where I was addicted to sample.

1.sample 2. [I was addicted to](# 2 I was addicted to) 3. [File structure](# 3 file structure) 4. url.py 5. settings.py 6. models.py 7. forms.py 8. adapter.py 9. templates 10. [Reference](# 10 reference)

1.sample samplecode(Github)

When I actually move it, it looks like this.

2. I'm addicted to

-** I'm addicted to **
I expanded the User and signup form and added the items of age and weight, but the age and weight added by CustomUser do not have values. -** Reason **
In django-allauth, even if you extend user with Customuser and signupform with CustomSignupform, the value entered from signupform is not saved in the user field by default. -** Solution **
If you create ʻadapter.py and write ʻAccountAdapter class and save_user function, the value entered in the extended field can be saved in CustomUser.

3. File structure

testsite/ ├templates/ │ ├accounts/ │ │ └registration/ │ │ └login.html/ │ │ └signup.html/ │ ├testapp/ │ │ └home.html │ └base.html ├testapp/ │ ├__pycache__ │ ├migrations │ ├adapter.py │ ├admin.py │ ├apps.py │ ├forms.py │ ├models.py │ ├tests.py │ ├urls.py │ └views.py ├testsite/ │ ├__pycache__ │ ├__init__ │ ├settings.py │ ├urls.py │ └wsgi.py └manage.py

4.url.py

`url.py`


from django.contrib import admin
from django.urls import include, path
from django.views.generic import TemplateView

urlpatterns = [
    path('admin/', admin.site.urls),
    path('',include('testapp.urls')),
    path('accounts/', include('allauth.urls')),
    path('accounts/login/', TemplateView.as_view(template_name = 'login.html'), name='login'),
    path('accounts/logout/', TemplateView.as_view(template_name = 'logout.html'), name='logout'),
    path('accounts/signup/', TemplateView.as_view(template_name = 'signup.html'), name='signup'),
]

5.settings.py Customuser, signupform, adapter settings are required.

`settings.py`


import os

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

SECRET_KEY = ''

DEBUG = True

ALLOWED_HOSTS = ['*']

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'testapp.apps.TestappConfig',#testapp
    'django.contrib.sites', #for djnago-allauth
    'allauth', #for djnago-allauth
    'allauth.account', #for djnago-allauth
    'allauth.socialaccount',#for djnago-allauth
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'testsite.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'testsite.wsgi.application'

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

LANGUAGE_CODE = 'ja'

TIME_ZONE = 'Asia/Tokyo'

USE_I18N = True

USE_L10N = True

USE_TZ = True

STATIC_URL = '/static/'

#add to
AUTHENTICATION_BACKENDS = (
    'django.contrib.auth.backends.ModelBackend',
    'allauth.account.auth_backends.AuthenticationBackend',
)

#Changed the authentication method to "email address and password"
ACCOUNT_AUTHENTICATION_METHOD = 'email'
#Use user name
ACCOUNT_USERNAME_REQUIRED = True

#Do not send user registration confirmation email
ACCOUNT_EMAIL_VERIFICATION = 'none'
#Make your email address a required item
ACCOUNT_EMAIL_REQUIRED = True

#User model extension(customuser)
AUTH_USER_MODEL = 'testapp.CustomUser'

SITE_ID = 1 #django-Because allauth uses the sites framework

LOGIN_REDIRECT_URL = 'home'
ACCOUNT_LOGOUT_REDIRECT_URL = '/accounts/login/'
ACCOUNT_LOGOUT_ON_GET = True

#Specify signup form
ACCOUNT_FORMS = {
    'signup' : 'testapp.forms.CustomSignupForm',
}
#Needed to store information from signupform in customusermodel
ACCOUNT_ADAPTER = 'testapp.adapter.AccountAdapter'
#Enter password at once
ACCOUNT_SIGNUP_PASSWORD_ENTER_TWICE = False

6.models.py

`models.py`


from django.db import models
from django.contrib.auth.models import AbstractUser

# Create your models here.
class CustomUser(AbstractUser):
    """Extended user model"""
    class Meta(AbstractUser.Meta):
        db_table = 'custom_user'

    age = models.IntegerField('age', blank=True, default=0)
    weight = models.IntegerField('body weight',blank=True, default=0)

7.forms.py

`forms.py`


from allauth.account.forms import SignupForm
from django import forms
from .models import CustomUser
from allauth.account.adapter import DefaultAccountAdapter

class CustomSignupForm(SignupForm):
    age = forms.IntegerField()
    weight = forms.IntegerField()
    
    class Meta:
        model = CustomUser

    def signup(self, request,user):
        user.age = self.cleaned_data['age']
        user.weight = self.cleaned_data['weight']
        user.save()
        return user

8.adapter.py

`adapter.py`


from allauth.account.adapter import DefaultAccountAdapter

class AccountAdapter(DefaultAccountAdapter):

    def save_user(self, request, user, form, commit=True):
        """
        This is called when saving user via allauth registration.
        We override this to set additional data on user object.
        """
        # Do not persist the user yet so we pass commit=False
        # (last argument)
        user = super(AccountAdapter, self).save_user(request, user, form, commit=False)
        user.age = form.cleaned_data.get('age')
        user.weight = form.cleaned_data.get('weight')
        user.save()

9.templates

`base.html`


<!doctype html>
<html lang="ja">

<head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <title>{% block title %}{% endblock %}</title>

    {# --- css --- #}
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css"
        integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
    <style type="text/css">
        body {
            padding-top: 5rem;
        }
    </style>
    {% block extra_css %}{% endblock %}
</head>

<body>
    <main class="container">
        {% block content %}{% endblock %}
    </main>

    {# --- js --- #}
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
        integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous">
    </script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js"
        integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous">
    </script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"
        integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous">
    </script>
    {% block extra_js %}{% endblock %}
</body>

</html>

`account/registration/login.html`


<!doctype html>
{% extends "base.html" %}

{% block title %}Login{% endblock %}

{% block content %}
<h2>Login</h2>
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <button type="submit">Login</button>
</form>
{% endblock %}

`account/registration/signup.html`


<!doctype html>
{% extends "base.html" %}

{% block title %}user registration{% endblock %}

{% block content %}
<h2>user registration</h2>
<form method="post">
    {% csrf_token %}
    {{ form.as_p }}
    <p><a href="{% url 'login' %}"><button type="submit">user registration</button></a></p>
</form>
{% endblock %}

`testapp/home.html`


<!doctype html>
{% extends "base.html" %}

{% block title %}home{% endblock %}

{% block content %}
<h2>home</h2>
{% if user.is_authenticated %}
Welcome{{ user.get_username }}Mr.
How old are you{{ user.age }}is
Your weight{{ user.weight }}kg
<p><a href="{% url 'logout' %}">Log out</a></p>
{% else %}
<p><a href="{% url 'login' %}">Login</a></p>
<p><a href="{% url 'signup' %}">signup</a></p>
{% endif %}
{% endblock %}

10. Reference

[Akihito Yokose "Django textbooks that can be used in the field"](https://www.amazon.co.jp/%E7%8F%BE%E5%A0%B4%E3%81%A7%E4%BD%BF % E3% 81% 88% E3% 82% 8B-Django-% E3% 81% AE% E6% 95% 99% E7% A7% 91% E6% 9B% B8% E3% 80% 8A% E5% AE% 9F% E8% B7% B5% E7% B7% A8% E3% 80% 8B-% E6% A8% AA% E7% 80% AC-% E6% 98% 8E% E4% BB% 81-ebook / dp / B07L3DRGBT? Tag = maftracking264432-22 & linkCode = ure & creative = 6339) django-allauth formula 1 django-allauth formula 2 the-complete-django-allauth-guide extending-and-customizing-django-allauth

[PYTHON] Create an authentication feature with django-allauth and CustomUser in Django