Initial checkin of mod_python json interface

[plcapi.git] / PLC / PCUs.py

diff --git a/PLC/PCUs.py b/PLC/PCUs.py
index 563acf9..98d5be3 100644 (file)
--- a/PLC/PCUs.py
+++ b/PLC/PCUs.py
@@ -5,6 +5,7 @@
 # Copyright (C) 2006 The Trustees of Princeton University
 #
 # $Id$
+# $URL$
 #
 
 from PLC.Faults import *
@@ -12,7 +13,7 @@ from PLC.Parameter import Parameter
 from PLC.Filter import Filter
 from PLC.Debug import profile
 from PLC.Table import Row, Table
-from PLC.NodeNetworks import valid_ip, NodeNetwork, NodeNetworks
+from PLC.Interfaces import valid_ip, Interface, Interfaces
 from PLC.Nodes import Node, Nodes
 
 class PCU(Row):
@@ -36,6 +37,7 @@ class PCU(Row):
         'model': Parameter(str, "PCU model string", max = 32, nullok = True),
         'node_ids': Parameter([int], "List of nodes that this PCU controls"),
         'ports': Parameter([int], "List of the port numbers that each node is connected to"),
+        'last_updated': Parameter(int, "Date and time when node entry was created", ro = True),
         }
 
     def validate_ip(self, ip):
@@ -43,6 +45,23 @@ class PCU(Row):
             raise PLCInvalidArgument, "Invalid IP address " + ip
         return ip
 
+    validate_last_updated = Row.validate_timestamp
+
+    def update_timestamp(self, col_name, commit = True):
+        """
+        Update col_name field with current time
+        """
+
+        assert 'pcu_id' in self
+        assert self.table_name
+
+        self.api.db.do("UPDATE %s SET %s = CURRENT_TIMESTAMP " % (self.table_name, col_name) + \
+                       " where pcu_id = %d" % (self['pcu_id']) )
+        self.sync(commit)
+
+    def update_last_updated(self, commit = True):
+        self.update_timestamp('last_updated', commit)
+
     def add_node(self, node, port, commit = True):
         """
         Add node to existing PCU.