from django.contrib.auth import authenticate, login
def my_view(request): username = request.POST['username'] password = request.POST['password'] user = authenticate(request, username=username, password=password) if user is not None: login(request, user) # Redirect to a success page. ... else: # Return an 'invalid login' error message. ...

from django.contrib import messages
from django.contrib.auth import authenticate
from django.contrib.auth.forms import AuthenticationForm
from django.shortcuts import render, redirect
def login_view(request): if request.method == "POST": form = AuthenticationForm(request, data=request.POST) if form.is_valid(): username = form.cleaned_data.get('username') password = form.cleaned_data.get('password') user = authenticate(username=username, password= password) if user is not None: login(request, user) messages.info(request, f"You are now logged in as {username}.") return redirect ('inventory:home') else: messages.error(request, "Invalid username or password") else: messages.error(request, "Invalid username or password") form = AuthenticationForm() return render(request, 'registration/login.html', context={"login_form":form})

#loginView
from django.contrib.auth.views import LoginView
class AdminLogin(LoginView): template_name = 'LoginView_form.html'

class Login(LoginView): template_name = "registration/login.html" def get_context_data(self, **kwargs): context = super(Login,self).get_context_data(**kwargs) page_title = 'Login' context.update({ "page_title":page_title }) return context

{"tags":[{"tag":"textarea","content":"from django.contrib.auth.views import LoginView\nfrom django.urls import reverse_lazy\nfrom django.contrib import messages\n\n\nclass MyLoginView(LoginView):\n redirect_authenticated_user = True\n \n def get_success_url(self):\n return reverse_lazy('tasks') \n \n def form_invalid(self, form):\n messages.error(self.request,'Invalid username or password')\n return self.render_to_response(self.get_context_data(form=form))\nCode language: Python (python)","code_language":"python"}]}