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[edumed.git] / contact / forms.py
index 97fc027..059f9e8 100644 (file)
@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
+import os
+
 from django.contrib.sites.models import Site
 from django.core.exceptions import ValidationError
 from django.core.files.uploadedfile import UploadedFile
 from django.core.mail import send_mail, mail_managers
 from django.core.validators import validate_email
 from django import forms
+from django.db.models.fields.files import FieldFile
 from django.template.loader import render_to_string
 from django.template import RequestContext
 from django.utils.translation import ugettext_lazy as _
@@ -13,6 +16,7 @@ from . import mailing
 
 
 contact_forms = {}
+update_forms = {}
 admin_list_width = 0
 
 
@@ -20,10 +24,15 @@ class ContactFormMeta(forms.Form.__class__):
     def __new__(cls, name, bases, attrs):
         global admin_list_width
         model = super(ContactFormMeta, cls).__new__(cls, name, bases, attrs)
-        assert model.form_tag not in contact_forms, 'Duplicate form_tag.'
-        if model.admin_list:
-            admin_list_width = max(admin_list_width, len(model.admin_list))
-        contact_forms[model.form_tag] = model
+        if model.form_tag:
+            if model.form_type == 'create':
+                assert model.form_tag not in contact_forms, 'Duplicate form_tag.'
+                if model.admin_list:
+                    admin_list_width = max(admin_list_width, len(model.admin_list))
+                contact_forms[model.form_tag] = model
+            elif model.form_type == 'update':
+                assert model.form_tag not in update_forms, 'Duplicate form_tag.'
+                update_forms[model.form_tag] = model
         return model
 
 
@@ -32,21 +41,80 @@ class ContactForm(forms.Form):
     __metaclass__ = ContactFormMeta
 
     form_tag = None
+    form_type = 'create'
+    updatable = False
     old_form_tags = []
     form_title = _('Contact form')
     submit_label = _('Submit')
     admin_list = None
     result_page = False
     mailing_field = None
+    mailing = False
+    data_processing = None
+    form_formsets = {}
+
+    disabled = False
+    disabled_template = None
 
     required_css_class = 'required'
     contact = NotImplemented
 
+    def __init__(self, data=None, files=None, *args, **kwargs):
+        self.instance = kwargs.pop('instance', None)
+        if self.instance and (data is not None or files is not None):
+            for attachment in self.instance.attachment_set.all():
+                if attachment.tag not in files:
+                    files[attachment.tag] = attachment.file
+        super(ContactForm, self).__init__(data, files, *args, **kwargs)
+        if not self.is_bound and self.instance:
+            self.fields['contact'].initial = self.instance.contact
+            self.fields['contact'].widget = forms.HiddenInput()
+            body = self.instance.body
+            for field, value in body.iteritems():
+                if field in self.fields:
+                    self.fields[field].initial = value
+            for attachment in self.instance.attachment_set.all():
+                self.fields[attachment.tag].initial = attachment
+
+    def get_dictionary(self, contact):
+        site = Site.objects.get_current()
+        return {
+            'form_tag': self.form_tag,
+            'site_name': getattr(self, 'site_name', site.name),
+            'site_domain': getattr(self, 'site_domain', site.domain),
+            'contact': contact,
+        }
+
+    @classmethod
+    def is_disabled(cls):
+        # end_time = localtime_to_utc(datetime(*cls.ends_on)) if cls.ends_on else None
+        # expired = end_time and end_time < timezone.now()
+        return cls.disabled  # or expired
+
+    def formset_initial(self, prefix):
+        if not self.instance:
+            return None
+        return self.instance.body.get(prefix)
+
+    def get_formsets(self, request=None):
+        request_data = {'data': request.POST, 'files': request.FILES} if request else {}
+        kwargs_instance = dict(request_data)
+        kwargs_instance['instance'] = self.instance
+        formsets = {}
+        for prefix, formset_class in self.form_formsets.iteritems():
+            if getattr(formset_class, 'takes_instance', False):
+                kwargs = kwargs_instance
+            else:
+                kwargs = request_data
+            formsets[prefix] = formset_class(
+                prefix=prefix, initial=self.formset_initial(prefix), **kwargs)
+        return formsets
+
     def save(self, request, formsets=None):
         from .models import Attachment, Contact
         body = {}
         for name, value in self.cleaned_data.items():
-            if not isinstance(value, UploadedFile) and name != 'contact':
+            if not isinstance(value, UploadedFile) and not isinstance(value, FieldFile) and name != 'contact':
                 body[name] = value
 
         for formset in formsets or []:
@@ -58,24 +126,32 @@ class ContactForm(forms.Form):
                 if sub_body:
                     body.setdefault(f.form_tag, []).append(sub_body)
 
-        contact = Contact.objects.create(
-            body=body,
-            ip=request.META['REMOTE_ADDR'],
-            contact=self.cleaned_data['contact'],
-            form_tag=self.form_tag)
+        if self.instance:
+            contact = self.instance
+            contact.body = body
+            email_changed = contact.contact != self.cleaned_data['contact']
+            contact.contact = self.cleaned_data['contact']
+            assert contact.form_tag == self.form_tag
+            contact.save()
+        else:
+            contact = Contact.objects.create(
+                body=body,
+                ip=request.META['REMOTE_ADDR'],
+                contact=self.cleaned_data['contact'],
+                form_tag=self.form_tag)
+            contact.generate_key()
+            email_changed = True
         for name, value in self.cleaned_data.items():
             if isinstance(value, UploadedFile):
+                for attachment in Attachment.objects.filter(contact=contact, tag=name):
+                    os.remove(attachment.file.path)
+                    attachment.delete()
                 attachment = Attachment(contact=contact, tag=name)
                 attachment.file.save(value.name, value)
                 attachment.save()
 
         site = Site.objects.get_current()
-        dictionary = {
-            'form_tag': self.form_tag,
-            'site_name': getattr(self, 'site_name', site.name),
-            'site_domain': getattr(self, 'site_domain', site.domain),
-            'contact': contact,
-        }
+        dictionary = self.get_dictionary(contact)
         context = RequestContext(request)
         mail_managers_subject = render_to_string([
                 'contact/%s/mail_managers_subject.txt' % self.form_tag,
@@ -92,25 +168,25 @@ class ContactForm(forms.Form):
         except ValidationError:
             pass
         else:
-            mail_subject = render_to_string([
-                    'contact/%s/mail_subject.txt' % self.form_tag,
-                    'contact/mail_subject.txt', 
-                ], dictionary, context).strip()
-            if self.result_page:
-                mail_body = render_to_string(
-                    'contact/%s/results_email.txt' % contact.form_tag,
-                    {
-                        'contact': contact,
-                        'results': self.results(contact),
-                    }, context)
-            else:
-                mail_body = render_to_string([
-                        'contact/%s/mail_body.txt' % self.form_tag,
-                        'contact/mail_body.txt',
-                    ], dictionary, context)
-            send_mail(mail_subject, mail_body, 'no-reply@%s' % site.domain, [contact.contact], fail_silently=True)
-            if self.mailing_field and self.cleaned_data[self.mailing_field]:
-                email = self.cleaned_data['contact']
-                mailing.subscribe(email)
+            if not self.instance:
+                mail_subject = render_to_string([
+                        'contact/%s/mail_subject.txt' % self.form_tag,
+                        'contact/mail_subject.txt',
+                    ], dictionary, context).strip()
+                if self.result_page:
+                    mail_body = render_to_string(
+                        'contact/%s/results_email.txt' % contact.form_tag,
+                        {
+                            'contact': contact,
+                            'results': self.results(contact),
+                        }, context)
+                else:
+                    mail_body = render_to_string([
+                            'contact/%s/mail_body.txt' % self.form_tag,
+                            'contact/mail_body.txt',
+                        ], dictionary, context)
+                send_mail(mail_subject, mail_body, 'no-reply@%s' % site.domain, [contact.contact], fail_silently=True)
+            if email_changed and (self.mailing or (self.mailing_field and self.cleaned_data[self.mailing_field])):
+                mailing.subscribe(contact.contact)
 
         return contact