如何在 Django 中检查登录用户的登录情况？

Question

I am new in django and i am trying to create signup and sign in for user. i have finished for sign up page and some user are doing sign up that's stored in my database. When i am going to sign in it can't find those user whose are already sign up. Would you please help me for this?

my view.py

def login_user(request):
    state = "Please log in below..."
    if request.POST:
        email = request.POST.get('email')
        password = request.POST.get('password')        
        user = authenticate(email=email, password=password)
        if user is not None:
            if  request.user.is_authenticated:
                login(request, user)
                state = "You're successfully logged in!"
            else:
                state = "Your account is not active, please contact the site admin."
        else:
            state = 'email: '+str(email)+' and password: '+str(password)+' is not found'

    return render_to_response('signup_test.html',{'state':state, 'email': email},context_instance=RequestContext(request))

Answer 1

The authenticate() method checks a username and a password .

You should modify this line:

user = authenticate(email=email, password=password)

to be:

user = authenticate(username=email, password=password)

However, this is assuming that you have set up authentication to accept an email as a username.

Answer 2

By default django support login with username so try some thing like

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:

Follow this: https://docs.djangoproject.com/en/1.8/topics/auth/default/#authenticating-users

check your user in your database first

Answer 3

Remember to use the set_password() that inserts the encrypted password to create users. Example:

if form.is_valid():
    user = form.save(commit = False)
    user.set_password(form.cleaned_data['password'])
    user.save()

Login view

Answer 4

您只需将电子邮件字段设置为唯一，那么它应该只允许唯一用户，否则会引发验证错误，例如“使用此电子邮件的用户已存在”。