merge latest code
diff --git a/plstackapi/core/api/slivers.py b/plstackapi/core/api/slivers.py
new file mode 100644
index 0000000..0bdaa5d
--- /dev/null
+++ b/plstackapi/core/api/slivers.py
@@ -0,0 +1,74 @@
+import re
+from plstackapi.openstack.client import OpenStackClient
+from plstackapi.openstack.driver import OpenStackDriver
+from plstackapi.core.api.auth import auth_check
+from plstackapi.core.models import Sliver, Slice
+from plstackapi.core.api.flavors import _get_flavors
+from plstackapi.core.api.images import _get_images
+from plstackapi.core.api.keys import _get_keys
+from plstackapi.core.api.slices import _get_slices
+from plstackapi.core.api.deployment_networks import _get_deployment_networks
+from plstackapi.core.api.nodes import _get_nodes
+ 
+
+def _get_slivers(filter):
+    if isinstance(filter, int):
+        slivers = Sliver.objects.filter(id=filter)
+    elif isinstance(filter, StringTypes):
+        slivers = Sliver.objects.filter(name=filter)
+    elif isinstance(filer, dict):
+        slivers = Sliver.objects.filter(**filter)
+    else:
+        slivers = []
+    return slivers
+ 
+def add_sliver(auth, fields):
+    driver = OpenStackDriver(client = auth_check(auth))
+    
+    flavors = _get_flavor(fields.get('flavor'))
+    if flavors: fields['flavor'] = flavors[0]     
+    images = _get_images(fields.get('image'))
+    if images: fields['image'] = images[0]     
+    keys = _get_keys(fields.get('get'))
+    if keys: fields['key'] = keys[0]     
+    slices = _get_slices(fields.get('slice'))
+    if slices: fields['slice'] = slices[0]     
+    deployment_networks = _get_deployment_networks(field.get('deployment_network'))
+    if deployment_networks: fields['deployment_network'] = deployment_networks[0]     
+    nodes = _get_nodes(fields.get('node'))
+    if nodes: fields['node'] = nodess[0]     
+    
+    sliver = Sliver(**fields)
+    # create quantum sliver
+    sliver = driver.spawn_instance(name=sliver.name,
+                                   key_name = sliver.key.name,
+                                   flavor=sliver.flavor.name,
+                                   image = sliver.image.name,
+                                   hostname = sliver.node.hostname )
+
+    sliver.instance_id=sliver.id
+
+    sliver.save()
+    return sliver
+
+def update_sliver(auth, sliver, **fields):
+    return  
+
+def delete_sliver(auth, filter={}):
+    driver = OpenStackDriver(client = auth_check(auth))   
+    slivers = _get_slivers(filter)
+    for sliver in slivers:
+        driver.destroy_instance(sliver.sliver_id) 
+        sliver.delete()
+    return 1
+
+def get_slivers(auth, filter={}):
+    client = auth_check(auth)
+    if 'slice' in filter:
+        slices = _get_slices(filter.get('slice'))
+        if slices: filter['slice'] = slices[0]
+    slivers = _get_slivers(filter)
+    return slivers             
+        
+
+