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from django import forms
from exam.models import Profile
from django.contrib.auth import authenticate
from django.contrib.auth.models import User
from string import letters, punctuation, digits
UNAME_CHARS = letters + "._" + digits
PWD_CHARS = letters + punctuation + digits
class UserRegisterForm(forms.Form):
username = forms.CharField(max_length=30)
email = forms.EmailField()
password = forms.CharField(max_length=30, widget=forms.PasswordInput())
confirm_password = forms.CharField(max_length=30, widget=forms.PasswordInput())
first_name = forms.CharField(max_length=30)
last_name = forms.CharField(max_length=30)
roll_number = forms.CharField(max_length=30)
def clean_username(self):
u_name = self.cleaned_data["username"]
if u_name.strip(UNAME_CHARS):
msg = "Only letters, digits, period and underscore characters are "\
"allowed in username"
raise forms.ValidationError(msg)
try:
User.objects.get(username__iexact = u_name)
raise forms.ValidationError("Username already exists.")
except User.DoesNotExist:
return u_name
def clean_password(self):
pwd = self.cleaned_data['password']
if pwd.strip(PWD_CHARS):
raise forms.ValidationError("Only letters, digits and punctuation are \
allowed in password")
return pwd
def clean_confirm_password(self):
c_pwd = self.cleaned_data['confirm_password']
pwd = self.data['password']
if c_pwd != pwd:
raise forms.ValidationError("Passwords do not match")
return c_pwd
def save(self):
u_name = self.cleaned_data["username"]
u_name = u_name.lower()
pwd = self.cleaned_data["password"]
email = self.cleaned_data['email']
new_user = User.objects.create_user(u_name, email, pwd)
new_user.first_name = self.cleaned_data["first_name"]
new_user.last_name = self.cleaned_data["last_name"]
new_user.save()
new_profile = Profile(user=new_user)
new_profile.roll_number = self.cleaned_data["roll_number"]
new_profile.save()
return u_name, pwd
class UserLoginForm(forms.Form):
username = forms.CharField(max_length = 30)
password = forms.CharField(max_length=30, widget=forms.PasswordInput())
def clean(self):
super(UserLoginForm, self).clean()
u_name, pwd = self.cleaned_data["username"], self.cleaned_data["password"]
user = authenticate(username = u_name, password = pwd)
if not user:
raise forms.ValidationError("Invalid username/password")
return user
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