src/contact/forms.py

   1 from django.contrib.sites.models import Site
   2 from django.core.exceptions import ValidationError
   3 from django.core.files.uploadedfile import UploadedFile
   4 from django.core.mail import send_mail, mail_managers
   5 from django.core.validators import validate_email
   6 from django import forms
   7 from django.template.loader import render_to_string
   8 from django.template import RequestContext
   9 from django.urls import reverse
  10 from django.utils.translation import ugettext_lazy as _
  11
  12
  13 contact_forms = {}
  14 admin_list_width = 0
  15
  16
  17 class ContactFormMeta(forms.Form.__class__):
  18     def __new__(cls, name, bases, attrs):
  19         global admin_list_width
  20         model = super(ContactFormMeta, cls).__new__(cls, name, bases, attrs)
  21         assert model.form_tag not in contact_forms, 'Duplicate form_tag.'
  22         if model.admin_list:
  23             admin_list_width = max(admin_list_width, len(model.admin_list))
  24         contact_forms[model.form_tag] = model
  25         return model
  26
  27
  28 class ContactForm(forms.Form):
  29     """Subclass and define some fields."""
  30     __metaclass__ = ContactFormMeta
  31
  32     form_tag = None
  33     form_title = _('Contact form')
  34     submit_label = _('Submit')
  35     admin_list = None
  36     result_page = False
  37
  38     required_css_class = 'required'
  39     # a subclass has to implement this field, but doing it here breaks the order
  40     contact = NotImplemented
  41
  42     def save(self, request, formsets=None):
  43         from .models import Attachment, Contact
  44         body = {}
  45         for name, value in self.cleaned_data.items():
  46             if not isinstance(value, UploadedFile) and name != 'contact':
  47                 body[name] = value
  48
  49         for formset in formsets or []:
  50             for f in formset.forms:
  51                 sub_body = {}
  52                 for name, value in f.cleaned_data.items():
  53                     if not isinstance(value, UploadedFile):
  54                         sub_body[name] = value
  55                 if sub_body:
  56                     body.setdefault(f.form_tag, []).append(sub_body)
  57
  58         contact = Contact.objects.create(
  59             body=body,
  60             ip=request.META['REMOTE_ADDR'],
  61             contact=self.cleaned_data['contact'],
  62             form_tag=self.form_tag)
  63         for name, value in self.cleaned_data.items():
  64             if isinstance(value, UploadedFile):
  65                 attachment = Attachment(contact=contact, tag=name)
  66                 attachment.file.save(value.name, value)
  67                 attachment.save()
  68
  69         site = Site.objects.get_current()
  70         dictionary = {
  71             'form_tag': self.form_tag,
  72             'site_name': getattr(self, 'site_name', site.name),
  73             'site_domain': getattr(self, 'site_domain', site.domain),
  74             'contact': contact,
  75         }
  76         context = RequestContext(request)
  77         mail_managers_subject = render_to_string([
  78                 'contact/%s/mail_managers_subject.txt' % self.form_tag,
  79                 'contact/mail_managers_subject.txt',
  80             ], dictionary, context).strip()
  81         mail_managers_body = render_to_string([
  82                 'contact/%s/mail_managers_body.txt' % self.form_tag,
  83                 'contact/mail_managers_body.txt',
  84             ], dictionary, context)
  85         mail_managers(mail_managers_subject, mail_managers_body, fail_silently=True)
  86
  87         try:
  88             validate_email(contact.contact)
  89         except ValidationError:
  90             pass
  91         else:
  92             mail_subject = render_to_string([
  93                     'contact/%s/mail_subject.txt' % self.form_tag,
  94                     'contact/mail_subject.txt',
  95                 ], dictionary, context).strip()
  96             if self.result_page:
  97                 mail_body = render_to_string(
  98                     'contact/%s/results_email.txt' % contact.form_tag,
  99                     {
 100                         'contact': contact,
 101                         'results': self.results(contact),
 102                     }, context)
 103             else:
 104                 mail_body = render_to_string([
 105                         'contact/%s/mail_body.txt' % self.form_tag,
 106                         'contact/mail_body.txt',
 107                     ], dictionary, context)
 108             send_mail(mail_subject, mail_body, 'no-reply@%s' % site.domain, [contact.contact], fail_silently=True)
 109
 110         return contact