I'm using Django Registration. It provides the view that processes registration_form.html that currently contains Username, Password1, Password2 and Email as user-enterable fields in my app. I have a very simple random username generator that I would like to use to pre-populate username in registration_form.html and make it "readonly". I'm having a hard time figuring out where in Django Registration I should make my tweaks. I believe it's in here somewhere:
class RegistrationView(_RequestPassingFormView):
"""
Base class for user registration views.
"""
disallowed_url = 'registration_disallowed'
form_class = RegistrationForm
http_method_names = ['get', 'post', 'head', 'options', 'trace']
success_url = None
template_name = 'registration/registration_form.html'
def dispatch(self, request, *args, **kwargs):
"""
Check that user signup is allowed before even bothering to
dispatch or do other processing.
"""
if not self.registration_allowed(request):
return redirect(self.disallowed_url)
return super(RegistrationView, self).dispatch(request, *args, **kwargs)
def form_valid(self, request, form):
new_user = self.register(request, **form.cleaned_data)
success_url = self.get_success_url(request, new_user)
# success_url may be a simple string, or a tuple providing the
# full argument set for redirect(). Attempting to unpack it
# tells us which one it is.
try:
to, args, kwargs = success_url
return redirect(to, *args, **kwargs)
except ValueError:
return redirect(success_url)
def registration_allowed(self, request):
"""
Override this to enable/disable user registration, either
globally or on a per-request basis.
"""
return True
def register(self, request, **cleaned_data):
"""
Implement user-registration logic here. Access to both the
request and the full cleaned_data of the registration form is
available here.
"""
raise NotImplementedError
UPDATE:
So based on initial responses I started with a quick edit of the existing RegistrationView as follows:
class RegistrationForm(forms.Form):
required_css_class = 'required'
# username = forms.RegexField(regex=r'^[\w.@+-]+$',
# max_length=30,
# label=_("Username"),
# error_messages={'invalid': _("This value may contain only letters, numbers and @/./+/-/_ characters.")})
# My new username stuff here:
n = random.randint(1,9999999)
default_username = 'AnonMom%d' % (n,)
username = forms.CharField(initial="default_username")
email = forms.EmailField(label=_("E-mail"))
password1 = forms.CharField(widget=forms.PasswordInput,
label=_("Password"))
password2 = forms.CharField(widget=forms.PasswordInput,
label=_("Password (again)"))
I was expecting to see my default username show up in registration.form.html defined as follows:
<form method="post" action=".">{% csrf_token %}
<p><input id="id_username" maxlength="25" name="username" type="text" autocomplete="off"></p>
<p style="font-size:12px; color:#999">Make it anonymous but easy to remember. 25 chars max. No spaces.</p>
<p><input id="id_password1" name="password1" type="password" placeholder="Password"/></p>
<p><input id="id_password2" name="password2" type="password" placeholder="Password (Confirm)"/></p>
<p><input id="id_email" name="email" type="email" placeholder="Email (Never displayed)" autocomplete="off"/></p>
But the field is empty. It's even empty if I just set initial="xxx". What am I doing wrong?
UPDATE 2:
It's all working using the code above with the following slight teak to the view and form:
class RegistrationForm(forms.Form):
n = random.randint(1,9999999)
username = forms.CharField(initial='MomzAnon%d' % (n,) )
...
<form method="post" action=".">{% csrf_token %}
<p><input id="id_username" maxlength="25" name="username" type="text"
value="{{ form.username.value }}" readonly autocomplete="off"></p>
...
Final question: Is there any reason to subclass RegistrationForm vs just edit it? My approach seems very simple in terms of lines of code.
UPDATE 3: It seems that my random username is not being auto-generated each time I call this form. So I'm coming back to this form having created one user and finding that the auto-generated username is unchanged from the last user registration. How can I force a username regen each time this form is presented to users?
UPDATE 4: I solved the problem outlined in UPDATE 3 by moving the username logic here. This code also includes a tweak to ensure my randomly generated username is also unique:
def __init__(self, *args, **kwargs):
super(RegistrationForm, self).__init__(*args, **kwargs)
n = random.randint(1,999999)
new_username = 'anon%d' % (n,)
while User.objects.filter(username=new_username).exists():
n = random.randint(1,999999)
new_username = 'anon%d' % (n,)
self.fields['username'] = forms.CharField(initial=new_username)
You can subclass RegistrationForm and make username field as readonly by adding readonly widget attribute :
from registration.forms import RegistrationForm
class MyForm(RegistrationForm):
username = forms.CharField(max_length=30, label=_("Username"),
widget=forms.TextInput(attrs={'readonly':'readonly'}))
In your RegistrationView subclass change form_class to your form class and override get_initial function (your generation random password code can be placed here to):
class MyReg(RegistrationView):
form_class = MyForm
def get_initial(self, *args, **kwargs):
self.initial = {'username': self.gen_randrom_username()}
return super(Myreg, self).get_initial(*args, **kwargs)
def gen_randrom_username(self):
# gen name
return random_username