Django 3.0: Unable to get username in template - django

Question

I have issue is that in template, I automatically get access of username of Superuser (if that is logged-in) but not username of user based on Buyer (Model). User is getting registered and also can login (I can see it in database). But in template I am unable to get username of user other than superuser. I don't what i am missing here. So i am putting all code of view.py here. Also after user logging he sees bookrepo:home and i am using user logic in header.html (bookrepo:home extends header.html)
I have model named Buyer in models.py file. And based on this model, two modelForm has made.
This is code of model.py
class Buyer(models.Model):
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
user = models.OneToOneField(User, on_delete=models.DO_NOTHING)
# additional attributes
contact = models.CharField('Contact #', max_length=16, unique=True, validators=[
RegexValidator(
regex=r'^\+?1?\d{9,15}$',
message="Phone number (Up to 15 digits) must be entered in the format: '[phone]'."
),
], )
devices = models.CharField('Devices', unique=False, max_length=115, blank=True)
picture = models.ImageField(upload_to=profile_pic_path, null=True,blank=True)
def __str__(self):
return "{} {}".format(self.user.first_name, self.user.last_name)
class Meta:
get_latest_by = '-user.date_joined'
This is code of modelForms
class RegistrationForm(forms.ModelForm):
password = forms.CharField(widget=forms.PasswordInput())
confirm_password = forms.CharField(widget=forms.PasswordInput())
class Meta():
model = User
fields = ('username',
'email',
'password')
def clean(self):
cleaned_data = super(RegistrationForm, self).clean()
password = cleaned_data.get("password")
confirm_password = cleaned_data.get("confirm_password")
if password != confirm_password:
raise forms.ValidationError(
"Password and Confirm Password does not match"
)
class RegistrationFormPlus(forms.ModelForm):
class Meta():
model = Buyer
fields = ('contact',)
This is code of header.html (NOT the home.html)
{% if user.is_authenticated %}
<a class="nav-link" href="{% url 'bookrepo:logout' %}">Logout</a>
<h2>Welcome {{ user.username }}!</h2>
{% else %}
<a class="nav-link" href="{% url 'bookrepo:user_login' %}">Login</a>
{% endif %}
This is code of views.py
def home(req):
bookz = Book.objects.order_by('title')
var = {'books': bookz, 'range': 10}
return render(req, 'bookrepo/home.html', context=var)
def registration(request):
registered = False
if request.method == 'POST':
reg_form = RegistrationForm(data=request.POST)
reg_form_plus = RegistrationFormPlus(data=request.POST)
if reg_form.is_valid() and reg_form_plus.is_valid():
user = reg_form.save()
user.set_password(user.password)
user.save()
user_plus = reg_form_plus.save(commit=False)
user_plus.user = user
user_plus.save()
registered = True
else:
print(reg_form.errors, reg_form_plus.errors)
print("else 2 chala")
else:
reg_form = RegistrationForm()
reg_form_plus = RegistrationFormPlus()
return render(request, 'bookrepo/signup.html',
{'reg_form': reg_form,
'reg_form_plus': reg_form_plus,
'registered': registered
})
#login_required
def special(request):
return HttpResponse("You are logged in. Nice!")
#login_required
def user_logout(request):
logout(request)
return HttpResponseRedirect(reverse('bookrepo:home'))
def user_login(request):
if request.method == 'POST':
username = request.POST.get('username')
password = request.POST.get('password')
user = authenticate(username=username, password=password)
if user:
return HttpResponseRedirect(reverse('bookrepo:home'))
else:
print("Someone tried to login and failed.")
print("They used username: {} and password: {}".format(username, password))
return HttpResponse("Invalid login details supplied.")
else:
return render(request, 'bookrepo/login.html', {})

Answer 1

You should use {{ buyer.user.username }} in your template to show the username of a user.

Answer 2

You are trying to extend your django user framework with a One To One Field . new extended Django Model used to store the extra information that relates to the User Model. {{user.username}} gives the username from session.
use this code to authenticate users don't forgot to import
from django.contrib.auth.models import User,auth
def login(request):
if request.method == "POST":
username = request.POST['username']
password = request.POST['password']
user=auth.authenticate(username=username,password=password)
if user is not None:
auth.login(request,user)
return redirect('index')
else:
messages.info(request,'invalid user')
return redirect('login')
else:
return render(request,"login.html")