add domain creation form and model code

- implement domains.forms.CreateHostingDomainForm
- implement domains.models.HostingDomainManager.create_for_hosting_package that
  takes care of creating the necessary database objects for hosting domains
  assigned to a hosting package

gnuviechadmin/domains/forms.py

@@ -0,0 +1,51 @@
+"""
+This module defines form classes for domain editing.
+
+"""
+from __future__ import absolute_import, unicode_literals
+
+from django import forms
+from django.core.urlresolvers import reverse
+from django.utils.translation import ugettext as _
+
+from crispy_forms.helper import FormHelper
+from crispy_forms.layout import (
+    Layout,
+    Submit,
+)
+
+from .models import HostingDomain
+
+
+class CreateHostingDomainForm(forms.ModelForm):
+    """
+    This form is used to create new HostingDomain instances.
+
+    """
+    class Meta:
+        model = HostingDomain
+        fields = ['domain']
+
+    def __init__(self, instance, *args, **kwargs):
+        self.hosting_package = kwargs.pop('hostingpackage')
+        super(CreateHostingDomainForm, self).__init__(*args, **kwargs)
+        self.helper = FormHelper()
+        self.helper.form_action = reverse(
+            'create_hosting_domain', kwargs={
+                'package': self.hosting_package.id
+            })
+        self.helper.layout = Layout(
+            'domain',
+            Submit('submit', _('Add Hosting Domain')),
+        )
+
+    def clean(self):
+        self.cleaned_data = super(CreateHostingDomainForm, self).clean()
+        self.cleaned_data['hosting_package'] = self.hosting_package
+
+    def save(self, commit=True):
+        return HostingDomain.objects.create_for_hosting_package(
+            commit=commit, **self.cleaned_data)
+
+    def save_m2m(self):
+        pass

gnuviechadmin/domains/models.py

@@ -4,7 +4,7 @@ This module contains models related to domain names.
 """
 from __future__ import absolute_import, unicode_literals
 
-from django.db import models
+from django.db import models, transaction
 from django.conf import settings
 from django.utils.encoding import python_2_unicode_compatible
 from django.utils.translation import ugettext as _
@@ -54,6 +54,27 @@ class MailDomain(DomainBase):
     mailaddresses = property(get_mailaddresses)
 
 
+class HostingDomainManager(models.Manager):
+    """
+    Default Manager for :py:class:`HostingDomain`.
+
+    """
+    @transaction.atomic
+    def create_for_hosting_package(
+        self, hosting_package, domain, commit, **kwargs
+    ):
+        from hostingpackages.models import CustomerHostingPackageDomain
+        hostingdomain = self.create(
+            customer=hosting_package.customer, domain=domain, **kwargs)
+        hostingdomain.maildomain = MailDomain.objects.create(
+            customer=hosting_package.customer, domain=domain)
+        custdomain = CustomerHostingPackageDomain.objects.create(
+            hosting_package=hosting_package, domain=hostingdomain)
+        if commit:
+            hostingdomain.save()
+            custdomain.save()
+        return hostingdomain
+
 
 @python_2_unicode_compatible
 class HostingDomain(DomainBase):
@@ -67,6 +88,8 @@ class HostingDomain(DomainBase):
         help_text=_('assigned mail domain for this domain')
     )
 
+    objects = HostingDomainManager()
+
     class Meta:
         verbose_name = _('Hosting domain')
         verbose_name_plural = _('Hosting domains')