2 # Functions for interacting with the initscripts table in the database
4 # Tony Mack <tmack@cs.princeton.edu>
5 # Copyright (C) 2006 The Trustees of Princeton University
9 from types import StringTypes
10 from PLC.Faults import *
11 from PLC.Parameter import Parameter
12 from PLC.Filter import Filter
13 from PLC.Table import Row, Table
15 class InitScript(Row):
17 Representation of a row in the initscripts table. To use,
18 instantiate with a dict of values.
21 table_name = 'initscripts'
22 primary_key = 'initscript_id'
25 'initscript_id': Parameter(int, "Initscript identifier"),
26 'name': Parameter(str, "Initscript name", max = 254),
27 'enabled': Parameter(bool, "Initscript is active"),
28 'script': Parameter(str, "Initscript"),
31 def validate_name(self, name):
33 validates the script name
36 conflicts = InitScripts(self.api, [name])
37 for initscript in conflicts:
38 if 'initscript_id' not in self or self['initscript_id'] != initscript['initscript_id']:
39 raise PLCInvalidArgument, "Initscript name already in use"
44 class InitScripts(Table):
46 Representation of the initscipts table in the database.
49 def __init__(self, api, initscript_filter = None, columns = None):
50 Table.__init__(self, api, InitScript, columns)
52 sql = "SELECT %s FROM initscripts WHERE True" % \
53 ", ".join(self.columns)
55 if initscript_filter is not None:
56 if isinstance(initscript_filter, (list, tuple, set)):
57 # Separate the list into integers and strings
58 ints = filter(lambda x: isinstance(x, (int, long)), initscript_filter)
59 strs = filter(lambda x: isinstance(x, StringTypes), initscript_filter)
60 initscript_filter = Filter(InitScript.fields, {'initscript_id': ints, 'name': strs })
61 sql += " AND (%s) %s" % initscript_filter.sql(api, "OR")
62 elif isinstance(initscript_filter, dict):
63 initscript_filter = Filter(InitScript.fields, initscript_filter)
64 sql += " AND (%s) %s" % initscript_filter.sql(api, "AND")