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