# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
-# $Id$
-# $URL$
-#
from PLC.Faults import *
from PLC.Parameter import Parameter
-from PLC.Table import Row, Table
+from PLC.Storage.AlchemyObject import AlchemyObj
-class BootState(Row):
+class BootState(AlchemyObj):
"""
Representation of a row in the boot_states table. To use,
instantiate with a dict of values.
"""
- table_name = 'boot_states'
- primary_key = 'boot_state'
- join_tables = ['nodes']
+ tablename = 'boot_states'
fields = {
- 'boot_state': Parameter(str, "Boot state", max = 20),
+ 'boot_state': Parameter(str, "Boot state", max = 20, primary_key=True),
}
def validate_boot_state(self, name):
raise PLCInvalidArgument, "Boot state must be specified"
# Make sure boot state does not alredy exist
- conflicts = BootStates(self.api, [name])
+ conflicts = BootStates(self.api, name)
if conflicts:
raise PLCInvalidArgument, "Boot state name already in use"
return name
-class BootStates(Table):
+ def sync(self, commit=True, validate=True):
+ AlchemyObj.sync(self, commit, validate)
+ AlchemyObj.insert(self, dict(self))
+
+ def delete(self, commit=True):
+ assert 'boot_state' in self
+ AlchemyObj.delete(self, dict(self))
+
+class BootStates(list):
"""
Representation of the boot_states table in the database.
"""
- def __init__(self, api, boot_states = None):
- Table.__init__(self, api, BootState)
-
- sql = "SELECT %s FROM boot_states" % \
- ", ".join(BootState.fields)
-
- if boot_states:
- sql += " WHERE boot_state IN (%s)" % ", ".join(map(api.db.quote, boot_states))
+ def __init__(self, api, filter = None):
+ if not filter:
+ boot_states = BootState().select()
+ elif isinstance(filter, StringTypes) or isinstance(filter, (list, tuple, set)):
+ boot_states = BootState().select(filter={'boot_state': filter})
+ else:
+ raise PLCInvalidArgument, "Wrong boot state filter %r" % filter
- self.selectall(sql)
+ for boot_state in boot_states:
+ self.append(boot_state)