2 # Thierry Parmentelat - INRIA
7 from PLC.Faults import *
8 from PLC.Method import Method
9 from PLC.Parameter import Parameter, Mixed
10 from PLC.Auth import Auth
12 from PLC.NodeTags import NodeTag, NodeTags
13 from PLC.Nodes import Node, Nodes
15 from PLC.Nodes import Node, Nodes
16 from PLC.Sites import Site, Sites
18 class DeleteNodeTag(Method):
20 Deletes the specified node tag
22 Attributes may require the caller to have a particular role in order
23 to be deleted, depending on the related node tag type.
24 Admins may delete attributes of any slice or sliver.
26 Returns 1 if successful, faults otherwise.
29 roles = ['admin', 'pi', 'user']
33 NodeTag.fields['node_tag_id']
36 returns = Parameter(int, '1 if successful')
41 def call(self, auth, node_tag_id):
42 node_tags = NodeTags(self.api, [node_tag_id])
44 raise PLCInvalidArgument, "No such node tag %r"%node_tag_id
45 node_tag = node_tags[0]
47 ### reproducing a check from UpdateSliceAttribute, looks dumb though
48 nodes = Nodes(self.api, [node_tag['node_id']])
50 raise PLCInvalidArgument, "No such node %r"%node_tag['node_id']
53 assert node_tag['node_tag_id'] in node['tag_ids']
55 # check permission : it not admin, is the user affiliated with the right site
56 if 'admin' not in self.caller['roles']:
58 node = Nodes (self.api,[node['node_id']])[0]
60 site = Sites (self.api, [node['site_id']])[0]
61 # check caller is affiliated with this site
62 if self.caller['person_id'] not in site['person_ids']:
63 raise PLCPermissionDenied, "Not a member of the hosting site %s"%site['abbreviated_site']
65 required_min_role = node_tag_type ['min_role_id']
66 if required_min_role is not None and \
67 min(self.caller['role_ids']) > required_min_role:
68 raise PLCPermissionDenied, "Not allowed to modify the specified node tag, requires role %d",required_min_role
71 self.object_ids = [node_tag['node_tag_id']]