--- /dev/null
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.PCUs import PCU, PCUs
+from PLC.Auth import Auth
+
+can_update = lambda (field, value): field not in \
+ ['pcu_id', 'site_id']
+
+class UpdatePCU(Method):
+ """
+ Updates the parameters of an existing PCU with the values in
+ pcu_fields.
+
+ Non-admins may only update PCUs at their sites.
+
+ Returns 1 if successful, faults otherwise.
+ """
+
+ roles = ['admin', 'pi', 'tech']
+
+ update_fields = dict(filter(can_update, PCU.fields.items()))
+
+ accepts = [
+ Auth(),
+ PCU.fields['pcu_id'],
+ update_fields
+ ]
+
+ returns = Parameter(int, '1 if successful')
+
+ def call(self, auth, pcu_id, pcu_fields):
+ pcu_fields = dict(filter(can_update, pcu_fields.items()))
+
+ # Get associated PCU details
+ pcus = PCUs(self.api, [pcu_id])
+ if not pcus:
+ raise PLCInvalidArgument, "No such PCU"
+ pcu = pcus[0]
+
+ if 'admin' not in self.caller['roles']:
+ if pcu['site_id'] not in self.caller['site_ids']:
+ raise PLCPermissionDenied, "Not allowed to update that PCU"
+
+ pcu.update(pcu_fields)
+ pcu.sync()
+
+ # Logging variables
+ self.event_objects = {'PCU': [pcu['pcu_id']]}
+ self.message = 'PCU %d updated: %s' % \
+ (pcu['pcu_id'], ", ".join(pcu_fields.keys()))
+ return 1