Django Sign Up and login with confirmation Email | Python

Django by default provides an authentication system configuration. User objects are the core of the authentication system.today we will implement Django’s authentication system.

Modules required :

• django : django install
• crispy_forms :

pip install --upgrade django-crispy-forms

Basic setup :
Start a project by the following command –

 django-admin startproject project

Change directory to project –

 cd project

Start the server- Start the server by typing the following command in terminal –

 python manage.py runserver

To check whether the server is running or not go to a web browser and enter http://127.0.0.1:8000/ as URL.
Now stop the server by pressing

ctrl-c

Let’s create an app now called the “user”.

python manage.py startapp user

Goto user/ folder by doing: cd user and create a folder templates with files index.html, login.html, Email.html, register.html files.

Open the project folder using a text editor. The directory structure should look like this :

Now add the “user” app and “crispy_form” in your todo_site in settings.py, and add 

CRISPY_TEMPLATE_PACK = 'bootstrap4'

at last of settings.py 

configure email settings in setting.py:

place your email and password here.

Edit urls.py file in project :

Python3

from django.contrib import admin
from django.urls import path, include
from user import views as user_view
from django.contrib.auth import views as auth

urlpatterns = [

    path('admin/', admin.site.urls),

    ##### user related path##########################
    path('', include('user.urls')),
    path('login/', user_view.Login, name ='login'),
    path('logout/', auth.LogoutView.as_view(template_name ='user/index.html'), name ='logout'),
    path('register/', user_view.register, name ='register'),

]

Edit urls.py in user :

Python3

from django.urls import path, include
from django.conf import settings
from . import views
from django.conf.urls.static import static

urlpatterns = [
         path('', views.index, name ='index'),
]

Edit views.py in user :

Python3

from django.shortcuts import render, redirect
from django.contrib import messages
from django.contrib.auth import authenticate, login
from django.contrib.auth.decorators import login_required
from django.contrib.auth.forms import AuthenticationForm
from .forms import UserRegisterForm
from django.core.mail import send_mail
from django.core.mail import EmailMultiAlternatives
from django.template.loader import get_template
from django.template import Context


#################### index#######################################
def index(request):
    return render(request, 'user/index.html', {'title':'index'})

########### register here #####################################
def register(request):
    if request.method == 'POST':
        form = UserRegisterForm(request.POST)
        if form.is_valid():
            form.save()
            username = form.cleaned_data.get('username')
            email = form.cleaned_data.get('email')
            ######################### mail system ####################################
            htmly = get_template('user/Email.html')
            d = { 'username': username }
            subject, from_email, to = 'welcome', 'your_email@gmail.com', email
            html_content = htmly.render(d)
            msg = EmailMultiAlternatives(subject, html_content, from_email, [to])
            msg.attach_alternative(html_content, "text/html")
            msg.send()
            ##################################################################
            messages.success(request, f'Your account has been created ! You are now able to log in')
            return redirect('login')
    else:
        form = UserRegisterForm()
    return render(request, 'user/register.html', {'form': form, 'title':'register here'})

################ login forms###################################################
def Login(request):
    if request.method == 'POST':

        # AuthenticationForm_can_also_be_used__

        username = request.POST['username']
        password = request.POST['password']
        user = authenticate(request, username = username, password = password)
        if user is not None:
            form = login(request, user)
            messages.success(request, f' welcome {username} !!')
            return redirect('index')
        else:
            messages.info(request, f'account done not exit plz sign in')
    form = AuthenticationForm()
    return render(request, 'user/login.html', {'form':form, 'title':'log in'})

Configure your email here.

Now create a forms.py in user :

Python3

from django import forms
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm



class UserRegisterForm(UserCreationForm):
    email = forms.EmailField()
    phone_no = forms.CharField(max_length = 20)
    first_name = forms.CharField(max_length = 20)
    last_name = forms.CharField(max_length = 20)
    class Meta:
        model = User
        fields = ['username', 'email', 'phone_no', 'password1', 'password2']

Navigate to templates/user/ and edit files :

• link to index.html file
• link to Email.html
• link to login.html
• link to register.html

Make migrations and migrate them.

python manage.py makemigrations
python manage.py migrate

Now you can run the server to see your app.

python manage.py runserver