使用 Django sqlite3 数据库登录时出现问题

Question

I want to log in with the email that existed in the table named "user" in the sqlite3 database. Whenever I am trying to find matching the emails as given photo. The "for" loop checking only the 1st email from the table of the database. What should I do to check all the emails that existed there and then log in when both are matched. Please help me to solve it.

def login(request):
   form = forms.userform()
   if request.method == "POST":
          form = forms.userform(request.POST)         
          if form.is_valid():
                 email = form.cleaned_data['email'] 
                 for object in User.objects.all():
                     if object.email == email:
                      messages.success(request,'successfull login')
                      return users(request)

Answer 1

You can make use of authenticate() method, with this method you don't have to manually match the user with a for loop.

from django.contrib.auth import authenticate

def login(request):
   form = forms.userform()
   if request.method == "POST":
       form = forms.userform(request.POST)         
       if form.is_valid():
           email = form.cleaned_data['email']
           password = form.cleaned_data['password']

           user = authenticate(username=username, password=password')
           if user is not None:
               messages.success(request,'successfull login')
           else:
               messages.error(request,'Invalid Credentials')

   return render(request, "home.html")