# Mark Huang <mlhuang@cs.princeton.edu>
# Copyright (C) 2006 The Trustees of Princeton University
#
-# $Id: BootStates.py,v 1.1 2006/10/10 20:24:06 mlhuang Exp $
-#
from PLC.Faults import *
from PLC.Parameter import Parameter
table_name = 'boot_states'
primary_key = 'boot_state'
+ join_tables = ['nodes']
fields = {
'boot_state': Parameter(str, "Boot state", max = 20),
}
- def __init__(self, api, fields = {}):
- Row.__init__(self, fields)
- self.api = api
-
def validate_boot_state(self, name):
- # Remove leading and trailing spaces
- name = name.strip()
-
- # Make sure name is not blank after we removed the spaces
- if not name:
+ # Make sure name is not blank
+ if not len(name):
raise PLCInvalidArgument, "Boot state must be specified"
-
- # Make sure boot state does not alredy exist
- conflicts = BootStates(self.api, [name])
+
+ # Make sure boot state does not already exist
+ conflicts = BootStates(self.api, [name])
if conflicts:
raise PLCInvalidArgument, "Boot state name already in use"
- return name
+ return name
- def delete(self, commit = True):
- assert 'boot_state' in self
-
- # Clean up miscellaneous join tables
- for table in ['nodes', 'boot_states']:
- self.api.db.do("DELETE FROM " + table + \
- " WHERE boot_state = %(boot_state)s",
- self)
-
- if commit:
- self.api.db.commit()
-
class BootStates(Table):
"""
Representation of the boot_states table in the database.
"""
- def __init__(self, api, names = None):
+ def __init__(self, api, boot_states = None):
+ Table.__init__(self, api, BootState)
+
sql = "SELECT %s FROM boot_states" % \
", ".join(BootState.fields)
-
- if names:
- # Separate the list into integers and strings
- sql += " WHERE boot_state IN (%s)" % ", ".join(api.db.quote(names))
- rows = api.db.selectall(sql)
+ if boot_states:
+ sql += " WHERE boot_state IN (%s)" % ", ".join( [ api.db.quote (s) for s in boot_states ] )
- for row in rows:
- self[row['boot_state']] = BootState(api, row)
+ self.selectall(sql)