PLC/Methods/UpdateNodeGroup.py

   1 from PLC.Faults import *
   2 from PLC.Method import Method
   3 from PLC.Parameter import Parameter, Mixed
   4 from PLC.NodeGroups import NodeGroup, NodeGroups
   5 from PLC.Auth import Auth
   6
   7 related_fields = NodeGroup.related_fields.keys()
   8 can_update = lambda (field, value): field in \
   9              ['name', 'description'] + \
  10              related_fields
  11
  12 class UpdateNodeGroup(Method):
  13     """
  14     Updates a custom node group.
  15
  16     Returns 1 if successful, faults otherwise.
  17     """
  18
  19     roles = ['admin']
  20
  21     nodegroup_fields = dict(filter(can_update, NodeGroup.fields.items() + NodeGroup.related_fields.items()))
  22
  23     accepts = [
  24         Auth(),
  25         Mixed(NodeGroup.fields['nodegroup_id'],
  26               NodeGroup.fields['name']),
  27         nodegroup_fields
  28         ]
  29
  30     returns = Parameter(int, '1 if successful')
  31
  32     def call(self, auth, nodegroup_id_or_name, nodegroup_fields):
  33         nodegroup_fields = dict(filter(can_update, nodegroup_fields.items()))
  34
  35         # Get nodegroup information
  36         nodegroups = NodeGroups(self.api, [nodegroup_id_or_name])
  37         if not nodegroups:
  38             raise PLCInvalidArgument, "No such nodegroup"
  39         nodegroup = nodegroups[0]
  40
  41         # Make requested associations
  42         for field in related_fields:
  43             if field in nodegroup_fields:
  44                 nodegroup.associate(auth, field, nodegroup_fields[field])
  45                 nodegroup_fields.pop(field)
  46
  47         nodegroup.update(nodegroup_fields)
  48         nodegroup.sync()
  49
  50         # Logging variables
  51         self.event_objects = {'NodeGroup': [nodegroup['nodegroup_id']]}
  52         self.message = 'Node group %d updated: %s' % \
  53                 (nodegroup['nodegroup_id'], ", ".join(nodegroup_fields.keys()))
  54         return 1