move HostingPackageAndCustomerMixin to gvawebcore.views

gnuviechadmin/gvawebcore/views.py

@@ -0,0 +1,26 @@
+"""
+This module defines common view code to be used by multiple gnuviechadmin apps.
+
+"""
+from __future__ import absolute_import, unicode_literals
+
+from django.shortcuts import get_object_or_404
+from hostingpackages.models import CustomerHostingPackage
+
+
+class HostingPackageAndCustomerMixin(object):
+    """
+    Mixin for views that gets the hosting package instance from the URL
+    keyword argument 'package'.
+
+    """
+    hosting_package_kwarg = 'package'
+    """Keyword argument used to find the hosting package in the URL."""
+
+    def get_hosting_package(self):
+        return get_object_or_404(
+            CustomerHostingPackage,
+            pk=int(self.kwargs[self.hosting_package_kwarg]))
+
+    def get_customer_object(self):
+        return self.get_hosting_package().customer