Fix some bugs

pvc.py

@@ -768,7 +768,7 @@ def undefine_vm(dom_name, dom_uuid):
         time.sleep(3)
 
     # Gracefully terminate the class instances
-    transaction.set_data('/domains/{}/state'.format(dom_uuid), 'delete'.encode('ascii'))
+    zk.set('/domains/{}/state'.format(dom_uuid), 'delete'.encode('ascii'))
     time.sleep(2)
     # Delete the configurations
     click.echo('Undefining VM "{}".'.format(dom_uuid))

pvc/VMInstance.py

@@ -48,8 +48,8 @@ class VMInstance:
         @zk.DataWatch('/domains/{}/state'.format(self.domuuid))
         def watch_state(data, stat, event=""):
             # If we get a delete state, just terminate outselves
-            if state == 'delete':
-                del self
+            if data.decode('ascii') == 'delete':
+                self.__delete__
             # Otherwise perform a management command
             else:
                 self.manage_vm_state()