Add post_send on device to AddVM (#2663)

Add post_send on ``device`` to ``AddVM``

src/ralph/discovery/models_device.py

@@ -616,7 +616,7 @@ def __unicode__(self):
     @classmethod
     def create(cls, ethernets=None, sn=None, model=None, model_name=None,
                model_type=None, device=None, allow_stub=False, priority=0,
-               **kwargs):
+               handle_post_save=True, **kwargs):
         if 'parent' in kwargs and kwargs['parent'] is None:
             del kwargs['parent']
         if not model and (not model_name or not model_type):
@@ -708,6 +708,7 @@ def create(cls, ethernets=None, sn=None, model=None, model_name=None,
             user = kwargs.get('user')
         except KeyError:
             user = None
+        dev._handle_post_save = handle_post_save
         dev.save(user=user, update_last_seen=True, priority=priority)
         for eth in ethernets:
             ethernet, eth_created = Ethernet.concurrent_get_or_create(

src/ralph/ui/views/deploy.py

@@ -16,6 +16,7 @@
 from django.conf import settings
 from django.contrib import messages
 from django.contrib.auth.models import User
+from django.db.models.signals import post_save
 from django.shortcuts import get_object_or_404
 from django.utils.translation import ugettext_lazy as _
 from lck.django.common import nested_commit_on_success
@@ -484,6 +485,7 @@ def post(self, request, *args, **kwargs):
             model_type=DeviceType.virtual_server,
             model_name=settings.ADD_VM_MODEL_NAME,
             verified=True,
+            handle_post_save=False,
         )
         device.name = hostname
         device.parent = parent
@@ -503,6 +505,10 @@ def post(self, request, *args, **kwargs):
         resp['Location'] = LATEST_API.canonical_resource_for(
             'dev'
         ).get_resource_uri(device)
+        device._handle_post_save = True
+        post_save.send(
+            sender=Device, instance=device, raw=None, using='default'
+        )
         return resp
 
     @csrf_exempt