2 # Thierry Parmentelat - INRIA
4 from PLC.Faults import *
5 from PLC.Method import Method
6 from PLC.Parameter import Parameter, Mixed
7 from PLC.Auth import Auth
9 from PLC.Sites import Site, Sites
10 from PLC.Nodes import Nodes
11 from PLC.TagTypes import TagType, TagTypes
12 from PLC.SiteTags import SiteTag, SiteTags
14 class UpdateSiteTag(Method):
16 Updates the value of an existing site setting
18 Admins have full access. Non-admins need to
19 (1) have at least one of the roles attached to the tagtype,
20 and (2) belong in the same site as the tagged subject.
22 Returns 1 if successful, faults otherwise.
25 roles = ['admin', 'pi', 'tech', 'user']
29 SiteTag.fields['site_tag_id'],
30 SiteTag.fields['value']
33 returns = Parameter(int, '1 if successful')
35 def call(self, auth, site_tag_id, value):
36 site_tags = SiteTags(self.api, [site_tag_id])
38 raise PLCInvalidArgument, "No such site setting %r"%site_tag_id
39 site_tag = site_tags[0]
41 tag_type_id = site_tag['tag_type_id']
42 tag_type = TagTypes (self.api,[tag_type_id])[0]
44 sites = Sites (self.api, site_tag['site_id'])
46 raise PLCInvalidArgument, "No such site %d"%site_tag['site_id']
49 # check authorizations
50 site.caller_may_write_tag(self.api,self.caller,tag_type)
52 site_tag['value'] = value
55 self.object_ids = [site_tag['site_tag_id']]