+from types import StringTypes
import random
import base64
import time
from PLC.Faults import *
from PLC.Parameter import Parameter
-from PLC.Table import Row, Table
+from PLC.Debug import profile
+from PLC.Storage.AlchemyObject import AlchemyObj
from PLC.Persons import Person, Persons
from PLC.Nodes import Node, Nodes
-class Session(Row):
+class Session(AlchemyObj):
"""
Representation of a row in the sessions table. To use, instantiate
with a dict of values.
"""
- table_name = 'sessions'
- primary_key = 'session_id'
+ tablename = 'sessions'
join_tables = ['person_session', 'node_session']
fields = {
- 'session_id': Parameter(str, "Session key"),
+ 'session_id': Parameter(str, "Session key", primary_key=True),
'person_id': Parameter(int, "Account identifier, if applicable"),
'node_id': Parameter(int, "Node identifier, if applicable"),
'expires': Parameter(int, "Date and time when session expires, in seconds since UNIX epoch"),
return time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(expires))
- def add_person(self, person, commit = True):
- """
- Associate person with session.
- """
+ #add_person = Row.add_object(Person, 'person_session')
- assert 'session_id' in self
- assert isinstance(person, Person)
- assert 'person_id' in person
-
- session_id = self['session_id']
- person_id = person['person_id']
-
- self.api.db.do("INSERT INTO person_session (session_id, person_id)" \
- " VALUES(%(session_id)s, %(person_id)d)",
- locals())
-
- if commit:
- self.api.db.commit()
-
- self['person_id'] = person_id
-
- def add_node(self, node, commit = True):
- """
- Associate node with session.
- """
-
- assert 'session_id' in self
- assert isinstance(node, Node)
- assert 'node_id' in node
-
- session_id = self['session_id']
- node_id = node['node_id']
-
- # Nodes can have only one session at a time
- self.api.db.do("DELETE FROM node_session WHERE node_id = %(node_id)d",
- locals())
-
- self.api.db.do("INSERT INTO node_session (session_id, node_id)" \
- " VALUES(%(session_id)s, %(node_id)d)",
- locals())
-
- if commit:
- self.api.db.commit()
-
- self['node_id'] = node_id
-
- def sync(self, commit = True, insert = None):
+ def sync(self, commit = True, insert = None, validate=True):
+ AlchemyObj.sync(commit=commit, validate=validate)
if not self.has_key('session_id'):
# Before a new session is added, delete expired sessions
- expired = Sessions(self.api, expires = -int(time.time())).values()
+ expired = Sessions(self.api, expires = -int(time.time()))
for session in expired:
session.delete(commit)
# Base64 encode their string representation
self['session_id'] = base64.b64encode("".join(map(chr, bytes)))
# Force insert
- insert = True
+ AlchemyObj.insert(self, dict(self))
- Row.sync(self, commit, insert)
-
-class Sessions(Table):
+class Sessions(list):
"""
Representation of row(s) from the session table in the database.
"""
- def __init__(self, api, session_ids = None, expires = int(time.time())):
- Table.__init__(self, api, Session)
-
- sql = "SELECT %s FROM view_sessions WHERE True" % \
- ", ".join(Session.fields)
-
- if session_ids:
- sql += " AND session_id IN (%s)" % ", ".join(map(api.db.quote, session_ids))
+ def __init__(self, api, session_filter = None, expires = int(time.time())):
+ if session_filter is not None:
+ sessions = Session().select()
+ if isinstance(session_filter, (list, tuple, set)):
+ # Separate the list into integers and strings
+ ints = filter(lambda x: isinstance(x, (int, long)), session_filter)
+ strs = filter(lambda x: isinstance(x, StringTypes), session_filter)
+ session_filter = {'person_id': ints, 'session_id': strs}
+ sessions = Session().select(filter=session_filter)
+ elif isinstance(session_filter, dict):
+ sessions = Session().select(filter=session_filter)
+ elif isinstance(session_filter, (int, long)):
+ sessions = Session().select(filter={'person_id': session_filter})
+ elif isinstance(session_filter, StringTypes):
+ sessions = Session().select(filter={'session_id': session_filter})
+ else:
+ raise PLCInvalidArgument, "Wrong session filter"%session_filter
if expires is not None:
if expires >= 0:
expires = -expires
sql += " AND expires < %(expires)d"
- self.selectall(sql, locals())
+ self.extend(sessions)