Added status field to a booked VM. Added the capability to change a booked VM status from the admin panel. Send email to user after his VM is approved

hosting/admin.py

@@ -1,6 +1,32 @@
 from django.contrib import admin
+
+from utils.mailer import BaseEmail
 from .models import VirtualMachineType, VirtualMachinePlan
 
 
+class VirtualMachinePlanAdmin(admin.ModelAdmin):
+    list_display = ('name', 'id', 'email')
+
+    def email(self, obj):
+        return obj.hosting_orders.latest('id').customer.user.email
+
+    def save_model(self, request, obj, form, change):
+        email = self.email(obj)
+        if 'status' in form.changed_data and obj.status == VirtualMachinePlan.ONLINE_STATUS:
+            context = {
+                'vm': obj
+            }
+            email_data = {
+                'subject': 'Your VM has been activated',
+                'to': email,
+                'context': context,
+                'template_name': 'vm_activated',
+                'template_path': 'emails/'
+            }
+            email = BaseEmail(**email_data)
+            email.send()
+        obj.save()
+
+
 admin.site.register(VirtualMachineType)
-admin.site.register(VirtualMachinePlan)
+admin.site.register(VirtualMachinePlan, VirtualMachinePlanAdmin)