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from django import forms
from django.forms.utils import ValidationError
from .validators import validate_email_nouser
from .models import Subscriber
class SubscribeForm(forms.ModelForm):
class Meta:
model = Subscriber
fields = ['user']
class NewsletterForm(forms.ModelForm):
""" This is the base class for all forms managing subscriptions. """
email_field = forms.EmailField(label='Email Address:', widget=forms.EmailInput(attrs={'placeholder': 'Your email address'}))
class Meta:
model = Subscriber
fields = ('email_field',)
def __init__(self, *args, **kwargs):
assert 'newsletter' in kwargs, 'No newsletter specified'
newsletter = kwargs.pop('newsletter')
if 'ip' in kwargs:
ip = kwargs['ip']
del kwargs['ip']
else:
ip = None
super(NewsletterForm, self).__init__(*args, **kwargs)
self.instance.newsletter = newsletter
if ip:
self.instance.ip = ip
class SubscribeRequestForm(NewsletterForm):
"""
Request subscription to the newsletter. Will result in an activation email
being sent with a link where one can edit, confirm and activate one's
subscription.
"""
email_field = forms.EmailField(
label=("e-mail"), validators=[validate_email_nouser], widget=forms.EmailInput(attrs={'placeholder': 'Your email address'})
)
def clean_email_field(self):
data = self.cleaned_data['email_field']
# Check whether we have already been subscribed to
try:
subscription = Subscriber.objects.get(
email_field__exact=data,
newsletter=self.instance.newsletter
)
if subscription.subscribed and not subscription.unsubscribed:
raise ValidationError(
"Your e-mail address has already been subscribed to."
)
else:
self.instance = subscription
self.instance = subscription
except Subscriber.DoesNotExist:
pass
return data
class UpdateForm(NewsletterForm):
"""
This form allows one to actually update to or unsubscribe from the
newsletter. To do this, a correct activation code is required.
"""
email_field = forms.EmailField(
label=("e-mail"), validators=[validate_email_nouser], disabled=True
)
def clean_user_activation_code(self):
data = self.cleaned_data['user_activation_code']
if data != self.instance.activation_code:
raise ValidationError(
('The validation code supplied by you does not match.')
)
return data
user_activation_code = forms.CharField(
label=("Activation code"), max_length=40
)
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