2 # Functions for interacting with the network_methods table in the database
4 # Mark Huang <mlhuang@cs.princeton.edu>
5 # Copyright (C) 2006 The Trustees of Princeton University
11 from PLC.Faults import *
12 from PLC.Parameter import Parameter
13 from PLC.Table import Row, Table
15 class NetworkMethod(Row):
17 Representation of a row in the network_methods table. To use,
18 instantiate with a dict of values.
21 table_name = 'network_methods'
22 primary_key = 'method'
23 join_tables = ['interfaces']
25 'method': Parameter(str, "Network method", max = 20),
28 def validate_method(self, name):
29 # Make sure name is not blank
31 raise PLCInvalidArgument, "Network method must be specified"
33 # Make sure network method does not alredy exist
34 conflicts = NetworkMethods(self.api, [name])
36 raise PLCInvalidArgument, "Network method name already in use"
40 class NetworkMethods(Table):
42 Representation of the network_methods table in the database.
45 def __init__(self, api, methods = None):
46 Table.__init__(self, api, NetworkMethod)
48 sql = "SELECT %s FROM network_methods" % \
49 ", ".join(NetworkMethod.fields)
52 sql += " WHERE method IN (%s)" % ", ".join(map(api.db.quote, methods))