How to authenticate a User - django

Question

I have created two different types of users - truck & company. Here is my registration page for a user
After registering, the data about whether the user is a truck or company will go to the database.
In my login page,
only Email and Password are to be entered. In my custom user creation form, I added the field username = email.
When I am trying to login with valid credentials, the page is not redirecting me to a particular page according to the user-type. Instead, an error which I created for invalid credentials in login.html is raising - "Your email and password didn't match. Please try again."
here's my code:
views.py:
def login_view(request):
title = "Login"
if request.method == 'POST':
form = LoginForm(data=request.POST)
email = request.POST.get('email', '')
password = request.POST.get('password', '')
user = auth.authenticate(username=email, password=password)
if form.is_valid():
auth.login(request, user)
user_type = form.cleaned_data['Label']
if user.is_active & user_type == 'Truck':
return HttpResponseRedirect('/post_load/')
elif user_type == 'Company':
return HttpResponseRedirect('/live_deal/')
else:
form = LoginForm()
return render(request, 'registration/login.html', {'form' : form, 'title': title})
urls.py:
# url(r'^login/$', views.login_view),
# url(r'^accounts/login/$', views.login_view),
url(r'^login/$', 'django.contrib.auth.views.login', {'authentication_form': LoginForm}),
url(r'^accounts/login/$', 'django.contrib.auth.views.login', {'authentication_form': LoginForm}),
forms.py:
class LoginForm(auth.forms.AuthenticationForm):
email = forms.EmailField(label=_("Email"),widget=forms.EmailInput)
CHOICES= (('Truck', 'Truck'),('Company', 'Company'),)
Label = forms.ChoiceField(choices=CHOICES, label='Label', widget=forms.RadioSelect())
login.html:
{%extends "registration/header.html"%}
{% block content %}
{% if form.errors %}
<p>Your email and password didn't match. Please try again.</p>
{% endif %}
<form class="form-horizontal" method="post" action = "." >{%csrf_token%}
<div class="panel panel-default login">
<div class="panel-heading">
<span class="glyphicon glyphicon-lock"></span> Login</div>
<div class="panel-body">
<form class="form-horizontal" role="form">
<div class="form-group">
<div class='col-sm-6 col-sm-offset-4'>
<table border="0">
<div class="col-sm-4">
<tr><th><label for="id_user" class="col-sm-4 control-label">Email:</label></th><td>{{ form.email }}</td></tr> </div>
<div class="col-sm-4">
<tr><th><label for="id_password" class="col-sm-4 control-label">Password:</label></th><td>{{ form.password }}</td></tr> </div>
</table> </div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-4 col-sm-8">
<div class="checkbox">
<label>
<input type="checkbox"/>
Remember me
</label>
</div>
</div>
</div>
<div class="form-group last">
<div class="col-sm-offset-4 col-sm-8">
<button type="submit" class="btn btn-success btn-sm">
Sign in</button>
<input type="hidden" name="next" value="/" />
<label class="col-sm-offset-3">
Forget Password?
</label>
</div>
</div>
</form>
</div>
<div class="panel-footer">
Not Registered? Register</div>
</div>
</form>
{% endblock %}

Answer 1

{% if form.errors %}
<p>Your email and password didn't match. Please try again.</p>
This error is rather broad. You could loop through it to see the actual errors.
Better yet; don't use your own authentication system just use Django's built-in system which also allows you to add extra fields to the user model.
Example:
from django.contrib.auth import authenticate, login
def my_view(request):
username = request.POST['username']
password = request.POST['password']
user = authenticate(username=username, password=password)
if user is not None:
if user.is_active:
login(request, user)
# Redirect to a success page.
else:
# Return a 'disabled account' error message
...
else:
# Return an 'invalid login' error message.
...
Note, you don't need to write your own login view, you can also use Django's login system to handle the form, pass reset/change, urls and templates (which you can override with your own template):
urls:
urlpatterns = [
url('^', include('django.contrib.auth.urls')),
]
Then /login/ will be your login page.
After it works with the Django contrib auth module, extend it with your own custom HTML login form.
django.contrib.auth.views