import os
from django.db import models
+from django.db.models import Q
from django.core import exceptions
-from core.models import PlCoreBase
+from core.models import PlCoreBase,PlCoreBaseManager,PlCoreBaseDeletionManager
from core.models import Image
from core.models import Slice
from core.models import Node
from core.models import Tag
from core.models import Flavor
from django.contrib.contenttypes import generic
+from planetstack.config import Config
+
+config = Config()
def get_default_flavor(deployment = None):
# Find a default flavor that can be used for a sliver. This is particularly
return flavors[0]
+class SliverDeletionManager(PlCoreBaseDeletionManager):
+ def get_queryset(self):
+ parent=super(SliverDeletionManager, self)
+ try:
+ backend_type = config.observer_backend_type
+ except AttributeError:
+ backend_type = None
+
+ parent_queryset = parent.get_queryset() if hasattr(parent, "get_queryset") else parent.get_query_set()
+ if (backend_type):
+ return parent_queryset.filter(Q(node__deployment__backend_type=backend_type))
+ else:
+ return parent_queryset
+
+ # deprecated in django 1.7 in favor of get_queryset().
+ def get_query_set(self):
+ return self.get_queryset()
+
+
+class SliverManager(PlCoreBaseManager):
+ def get_queryset(self):
+ parent=super(SliverManager, self)
+
+ try:
+ backend_type = config.observer_backend_type
+ except AttributeError:
+ backend_type = None
+
+ parent_queryset = parent.get_queryset() if hasattr(parent, "get_queryset") else parent.get_query_set()
+
+ if backend_type:
+ return parent_queryset.filter(Q(node__deployment__backend_type=backend_type))
+ else:
+ return parent_queryset
+
+ # deprecated in django 1.7 in favor of get_queryset().
+ def get_query_set(self):
+ return self.get_queryset()
+
# Create your models here.
class Sliver(PlCoreBase):
+ objects = SliverManager()
+ deleted_objects = SliverDeletionManager()
instance_id = models.CharField(null=True, blank=True, max_length=200, help_text="Nova instance id")
name = models.CharField(max_length=200, help_text="Sliver name")
instance_name = models.CharField(blank=True, null=True, max_length=200, help_text="OpenStack generated name")