====

[plcapi.git] / PLC / PCUs.py

diff --git a/PLC/PCUs.py b/PLC/PCUs.py
index 5b69c0a..d628677 100644 (file)
--- a/PLC/PCUs.py
+++ b/PLC/PCUs.py
@@ -4,15 +4,13 @@
 # Mark Huang <mlhuang@cs.princeton.edu>
 # Copyright (C) 2006 The Trustees of Princeton University
 #
-# $Id: PCUs.py,v 1.9 2006/11/09 03:07:42 mlhuang Exp $
-#
 
 from PLC.Faults import *
 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 +34,7 @@ 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 +42,23 @@ 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.
@@ -107,10 +123,12 @@ class PCUs(Table):
               ", ".join(self.columns)
 
         if pcu_filter is not None:
-            if isinstance(pcu_filter, (list, tuple, set)):
+            if isinstance(pcu_filter, (list, tuple, set, int, long)):
                 pcu_filter = Filter(PCU.fields, {'pcu_id': pcu_filter})
             elif isinstance(pcu_filter, dict):
                 pcu_filter = Filter(PCU.fields, pcu_filter)
-            sql += " AND (%s)" % pcu_filter.sql(api)
+            else:
+                raise PLCInvalidArgument, "Wrong pcu filter %r"%pcu_filter
+            sql += " AND (%s) %s" % pcu_filter.sql(api)
 
         self.selectall(sql)