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
8 from PLC.Faults import *
9 from PLC.Parameter import Parameter
10 from PLC.Filter import Filter
11 from PLC.Table import Row, Table
13 class InitScript(Row):
15 Representation of a row in the initscripts table. To use,
16 instantiate with a dict of values.
19 table_name = 'initscripts'
20 primary_key = 'initscript_id'
23 'initscript_id': Parameter(int, "Initscript identifier"),
24 'name': Parameter(str, "Initscript name", max = 254),
25 'enabled': Parameter(bool, "Initscript is active"),
26 'script': Parameter(str, "Initscript"),
29 def validate_name(self, name):
31 validates the script name
34 conflicts = InitScripts(self.api, [name])
35 for initscript in conflicts:
36 if 'initscript_id' not in self or self['initscript_id'] != initscript['initscript_id']:
37 raise PLCInvalidArgument("Initscript name already in use")
42 class InitScripts(Table):
44 Representation of the initscripts table in the database.
47 def __init__(self, api, initscript_filter = None, columns = None):
48 Table.__init__(self, api, InitScript, columns)
50 sql = "SELECT %s FROM initscripts WHERE True" % \
51 ", ".join(self.columns)
53 if initscript_filter is not None:
54 if isinstance(initscript_filter, (list, tuple, set)):
55 # Separate the list into integers and strings
56 ints = [x for x in initscript_filter if isinstance(x, int)]
57 strs = [x for x in initscript_filter if isinstance(x, str)]
58 initscript_filter = Filter(InitScript.fields, {'initscript_id': ints, 'name': strs })
59 sql += " AND (%s) %s" % initscript_filter.sql(api, "OR")
60 elif isinstance(initscript_filter, dict):
61 initscript_filter = Filter(InitScript.fields, initscript_filter)
62 sql += " AND (%s) %s" % initscript_filter.sql(api, "AND")
63 elif isinstance(initscript_filter, int):
64 initscript_filter = Filter(InitScript.fields, {'initscript_id': initscript_filter})
65 sql += " AND (%s) %s" % initscript_filter.sql(api, "AND")
66 elif isinstance(initscript_filter, str):
67 initscript_filter = Filter(InitScript.fields, {'name': initscript_filter})
68 sql += " AND (%s) %s" % initscript_filter.sql(api, "AND")
70 raise PLCInvalidArgument("Wrong initscript filter %r"%initscript_filter)