On Jan 14, 2010, at 6:45 AM, nameless wrote:
>
>
> I want username field is automatically filled with this value:
>
> username = str(n);
>
> where n is a number of 10 digits ( autoincremented or random ).
>
> .
>
> I tried to add this in save method:
>
> username = str(random.randint(1000000000,9999999999))
>
> but there is a collision problem when n is the same for 2 users
> ( although rare initially ).
>
> .
>
> How do I do this ?
>
We did something like:
def register_user(email, password, first_name=None, last_name=None,
agree_to_eula=True):
def generate_username():
"""Generate a random 30-character username. Username can only be
alphanumeric or underscore."""
return ''.join([choice(string.letters + string.digits + '_') for i in
range(30)])
email = email.strip()
if not email_re.search(email):
raise InvalidEmailAddressExcept
if len(password.strip()) < 6:
#TODO: pass password length info back to exception, so it's not hard
coded in two locations
raise InvalidPasswordExcept
try:
user = authenticate_user(email,password,agree_to_eula)
except AuthenticationFailedExcept:
raise AccountExistsAuthenticationFailedExcept
except UserNotFoundExcept:
# we need to create this user
while True:
try:
user = User.objects.create_user(username=generate_username(),
email=email, password=password)
except IntegrityError:
# this means the username already exists loop and try again
with a new username
continue
else:
# we successfully created the user, leave the loop
break
if first_name:
user.first_name = first_name
if last_name:
user.last_name = last_name
user.save()
profile = Profile(user=user)
if agree_to_eula:
profile.agree_to_eula()
profile.save()
else:
profile = user.get_profile()
return {'user': user,}
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