authenticate() is not validate data properly django - django

Question

When I try to click on login button it always execute the invalid credentials instead of redirect to the index page.. What I did is that in database create table name signup and wants to validate all the data from that table.. Here signup_data function is works well but in login_data cannot authenticate the user.
Models.py
from django.db import models
class signup(models.Model):
username = models.CharField(max_length=10)
first_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
email = models.EmailField()
password = models.CharField(max_length=10)
Forms.py
from django.forms import ModelForm
from . models import signup
from django import forms
class signupform(ModelForm):
username= forms.CharField(max_length=10,widget=forms.TextInput(attrs={'class':'form-control'}))
first_name = forms.CharField(max_length=20, widget=forms.TextInput(attrs={'class': 'form-control'}))
last_name = forms.CharField(max_length=20,widget=forms.TextInput(attrs={'class': 'form-control'}))
email = forms.EmailField(max_length=20,widget=forms.EmailInput(attrs={'class': 'form-control'}))
password = forms.CharField(max_length=10,widget=forms.PasswordInput(attrs={'class':'form-control'}))
class Meta:
model = signup
fields = '__all__'
Views.py
from django.shortcuts import render,redirect
from . forms import signupform
from . models import signup
from django.contrib import messages
from django.contrib.auth import login,authenticate
def index(response):
return render(response,'login_module/index.html')
def signup_data(response):
if response.method == 'POST':
form = signupform(response.POST)
if form.is_valid():
username = form.cleaned_data['username']
first_name = form.cleaned_data['first_name']
last_name = form.cleaned_data['last_name']
email = form.cleaned_data['email']
password = form.cleaned_data['password']
if signup.objects.filter(username=username).exists():
# messages.add_message(response,messages.WARNING,'Username is already taken')
messages.error(response,'Username is already taken')
return redirect('signup')
elif signup.objects.filter(email=email).exists():
messages.error(response,'Email is already taken')
# messages.add_message(response,messages.WARNING,'Email is already taken')
return redirect('signup')
else:
register_instance = signup(username=username, first_name=first_name, last_name=last_name, email=email, password=password)
register_instance.save()
messages.success(response,'Registered Successfull')
return redirect('signup')
else:
form = signupform()
return render(response,'login_module/signup.html',{'form':form, 'message': messages})
def login_data(request):
form = signupform(request.POST or None)
if request.method == "POST":
username = request.POST['username']
password = request.POST['password']
user = authenticate(username=username, password=password)
if user is not None:
login(request,user)
return redirect('index')
else:
messages.error(request,'Invalid Credentials')
return redirect('login')
else:
return render(request,'login_module/login.html',{'form':form, 'message': messages})
Login.html
{% extends 'login_module/base.html' %}
{% block content %}
<div class="container">
<div class="row">
<div class="col-md-12 text-center mt-50">
<h1>Login Page</h1>
</div>
</div>
<div class="row">
<div class="col-md-4 offset-md-4 ">
<form method="post" action="{% url 'login' %}">
{% csrf_token %}
<div class="form-group rounded-top">
{{ form.username.label_tag }} {{ form.username }}
</div>
<div class="form-group rounded-top">
{{ form.password.label_tag }} {{ form.password }}
</div>
<div class="text-center">
<button type="submit" class="btn btn-primary">Login</button>
</div>
</form>
</div>
</div>
<div class="text-center mt-50">
{% if messages %}
{% for message in messages %}
<div class="alert alert-danger" role="alert">
{{ message }}
{% endfor %}
{% endif %}
</div>
</div>
{% endblock %}
Login Page

Answer 1

As far as I can tell you are creating a signup object when signing up, but when trying to login with authenticate django is looking for the generic User model. You have to create a User in the database rather than a signup object to use authenticate.