implement website deletion

- implement websites.views.DeleteWebsite
- add URL pattern 'delete_website' to websites.urls
- add template website_confirm_delete.html
- add link from hostingpackage page to 'delete_website'
- add changelog entry

gnuviechadmin/websites/views.py

@@ -8,6 +8,7 @@ from django.shortcuts import get_object_or_404, redirect
 from django.utils.translation import ugettext as _
 from django.views.generic.edit import (
     CreateView,
+    DeleteView,
 )
 from django.contrib import messages
 
@@ -58,3 +59,25 @@ class AddWebsite(
             )
         )
         return redirect(self.get_hosting_package())
+
+
+class DeleteWebsite(
+    HostingPackageAndCustomerMixin, StaffOrSelfLoginRequiredMixin, DeleteView
+):
+    """
+    This view is used to delete websites in a customer hosting package.
+
+    """
+    context_object_name = 'website'
+    model = Website
+
+    def get_context_data(self, **kwargs):
+        context = super(DeleteWebsite, self).get_context_data(**kwargs)
+        context.update({
+            'customer': self.get_customer_object(),
+            'hostingpackage': self.get_hosting_package(),
+        })
+        return context
+
+    def get_success_url(self):
+        return self.get_hosting_package().get_absolute_url()