def sign_up(request):
_ = request.translate
form = SignupForm(request.params, _)
if request.method == 'POST' and form.validate():
user = User.create(request.POST, unique=['email'])
if user is None:
return {
'form': form,
'error': _('The email is already used by another user.')
}
headers = forget(request)
return HTTPFound(location=request.route_url('login'), headers=headers)
return {'form': form}
