--- /dev/null
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.SliceAttributes import SliceAttribute, SliceAttributes
+from PLC.Slices import Slice, Slices
+from PLC.Nodes import Node, Nodes
+from PLC.Auth import Auth
+
+class DeleteSliceAttribute(Method):
+ """
+ Deletes the specified slice or sliver attribute.
+
+ Attributes may require the caller to have a particular role in
+ order to be deleted. Users may only delete attributes of
+ slices or slivers of which they are members. PIs may only delete
+ attributes of slices or slivers at their sites, or of which they
+ are members. Admins may delete attributes of any slice or sliver.
+
+ Returns 1 if successful, faults otherwise.
+ """
+
+ roles = ['admin', 'pi', 'user']
+
+ accepts = [
+ Auth(),
+ SliceAttribute.fields['slice_attribute_id']
+ ]
+
+ returns = Parameter(int, '1 if successful')
+
+ def call(self, auth, slice_attribute_id):
+ slice_attributes = SliceAttributes(self.api, [slice_attribute_id])
+ if not slice_attributes:
+ raise PLCInvalidArgument, "No such slice attribute"
+ slice_attribute = slice_attributes[0]
+
+ slices = Slices(self.api, [slice_attribute['slice_id']])
+ if not slices:
+ raise PLCInvalidArgument, "No such slice"
+ slice = slices[0]
+
+ assert slice_attribute['slice_attribute_id'] in slice['slice_attribute_ids']
+
+ if 'admin' not in self.caller['roles']:
+ if self.caller['person_id'] in slice['person_ids']:
+ pass
+ elif 'pi' not in self.caller['roles']:
+ raise PLCPermissionDenied, "Not a member of the specified slice"
+ elif slice['site_id'] not in self.caller['site_ids']:
+ raise PLCPermissionDenied, "Specified slice not associated with any of your sites"
+
+ if slice_attribute['min_role_id'] is not None and \
+ min(self.caller['role_ids']) > slice_attribute['min_role_id']:
+ raise PLCPermissioinDenied, "Not allowed to delete the specified attribute"
+
+ slice_attribute.delete()
+ self.event_objects = {'SliceAttribute': [slice_attribute['slice_attribute_id']]}
+
+ return 1