Agfdhyk

I'm working on a Django(1.4) and Python (2.7) project in which I have a custom model for user to get loggedin.

Here's my model:
from models.py:

class User_table(models.Model):

    first_name = models.CharField(max_length=100)

    last_name = models.CharField(max_length=100)

    address = models.CharField(max_length=300)

    phone = models.CharField(max_length=20, null=True)

    emailid = models.EmailField()

    user_name = models.CharField(max_length=100)

    password = models.TextField()

    user_type = models.CharField(max_length=20)

    # True means drive is available for delivery

    status = models.BooleanField(default=True)

    vehicle_no = models.CharField(max_length=50, blank=True, null=True)

    gender = models.CharField(max_length=10)

    profile = models.ForeignKey(AddedFile, on_delete=models.CASCADE, null=True, related_name='profile')

    uploaded_document = models.ForeignKey(AddedFile, on_delete=models.CASCADE, null=True, related_name='document')

    approval_status = models.BooleanField(default=False)

    login_try = models.IntegerField(default=0)

    is_active = models.BooleanField(default=False)

    created_at = models.DateTimeField(auto_now_add=True)

    updated_at = models.DateTimeField(auto_now=True)



    def __str__(self):

        return str(self.id)

And here's my view:
From views.py:

def mainlogin(request):

    if request.method == "POST":

        username = request.POST['username']

        email = request.POST['email']

        password = request.POST['password']

        try:

            obj = User_table.objects.get(user_name=username, emailid=email)

        verify_password = ''

        try:

            verify_password = handler.verify(password, obj.password)

        except Exception as e:

            print(e)

        if verify_password is True:

            request.session['user_id'] = obj.id

            request.session['user_type'] = obj.user_type

            user_name = obj.first_name + ' ' + obj.last_name

            request.session['user_name'] = user_name

            if not obj.approval_status:

                return HttpResponse('Your account is not confirmed by administration.')

            obj.is_active = True

            obj.login_try = 0

            obj.save()

            return redirect(home)

        else:

            try:

                obj = User_table.objects.get(user_name=username, emailid=email);

                if obj:

                    s = obj.login_try

                    s = s + 1

                    obj.login_try = int(s)



                    if int(obj.login_try) >= 3:

                        obj.login_try = 3

                    obj.save()

                    if int(obj.login_try) == 3:

                        id = obj.id

                        key = get_random_string(length=10)

                        reset_link = 'It seems you forgot password or someone is trying to login you account. This is your password reset link please do not share this with other ' + settings.EMAIL_URL + 'reset_password/' + str(

                            id) + ' key is : ' + str(key)

                        send_mail('Reset link', reset_link, settings.EMAIL_HOST_USER, [obj.emailid, ])

                        obj.password = str(key)

                        obj.save()

                        return HttpResponse(

                            'It seems you forgot password or someone is trying to login you account.  Password Reset link has been sent to your email id')

            except Exception as e:

                print(e)

                pass

            return redirect(mainlogin)

    except Exception as e:

        print('error is  : ', e)

        return HttpResponse('An error has occurred.')

if request.method == "GET":

    try:

        return render(request, "login.html")

    except Exception as e:

        print(e)

When I try to log in it returns an error:

(u'error is : ', DoesNotExist('User_table matching query does not exist.',))

I ahve taken a look into the database and confirm that I have the record which I'm trying to get from the view, but it still through this error.

What can be wrong here?

Help me, please!

Thanks in advance!

checklist:
1 not sure this kind of express is supported, i usually use someModel.objects.filter(id="asdf").filter(email="qwe@gmail.com")

2 no record matched

r u sure u can match something, the official doc says:

get() raises a DoesNotExist exception if an object wasn’t found for
the given parameters. This exception is an attribute of the model
class. Example:

django official doc

hope could help

if you want to get the only specific record you can use Django shortcut get_object_or_404()
If you don't have specific entry in a database then Django will raise 404 exception.
If you want to explore more this topic enter link description here