[PYTHON] [Django] Field names, user registration, and login methods that can be used in the User model

Introduction

This article is a study memo for beginners who are also aiming to break away from Django beginners. There is a possibility of mistakes in word selection and interpretation.

To touch

--What is the User model? --How to make user --Implementation of login / logout

What is the User model?

By default, Django includes a database for user management, which allows you to authenticate and manage users without hassle.

The User model has the following inheritance relationship and has the field names shown below.

• By the way, this figure is based on this book. https://www.amazon.co.jp/dp/B07GK7BWB7/ref=dp-kindle-redirect?_encoding=UTF8&btkr=1

You can also access the data like any other model object.

from django.contrib.auth.model import User

#By the way, the get method returns an error if the value cannot be obtained.
User.objects.get(username='admin') 
User.objects.get(pk=1)

#By the way, the all method returns a queryset object
#Can be used like a list
User.objects.all() 

How to make a User

--Make on the console

(virtualenv)~~~~~$python manage.py createsuperuser

Create a superuser with all privileges to access the Admin site.

--Make on admin site After running server, go to the Admin site and click Add

--Create in views.py

from django.contrib.auth.models import User

User.objects.create_user(username,email,password)
#If you want to jump to the page you logged in to immediately after registering as a user
#user = User.objects.create_user(username,email,password)
#Is convenient

Login / logout

from django.contrib.auth import authenticate, login, logout

def loginfunc(request):
      #If it matches the User model, it returns an object, otherwise it returns none, so as follows
      #Use if statement
      #Immediately after registering User
      #user = User.objects.create_user(username,email,password)Can be substituted with
      user = authenticate(request, username=username, password=password)
        if user is not None:
            #Login
            login(request, user)
            return redirect('userpage')
        else:
            return redirect('signup')

def logoutfunc(request):
    #Log out
    logout(request)
    return redirect('signup')