hooks/__init__.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Mon, 12 Apr 2010 15:15:00 +0200
branchstable
changeset 5217 08e7fa906cdb
parent 5101 0d01acee1f0a
child 5421 8167de96c523
permissions -rw-r--r--
[source] small refactoring to avoid being doomed by a wrong assertion message on buggy storage raising attribute error
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
4913
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     1
"""core hooks
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     2
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     3
:organization: Logilab
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     4
:copyright: 2009-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     5
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     6
:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     7
"""
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     8
__docformat__ = "restructuredtext en"
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
     9
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    10
from datetime import timedelta, datetime
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    11
from cubicweb.server import hook
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    12
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    13
class ServerStartupHook(hook.Hook):
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    14
    """task to cleanup expirated auth cookie entities"""
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    15
    __regid__ = 'cw_cleanup_transactions'
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    16
    events = ('server_startup',)
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    17
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    18
    def __call__(self):
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    19
        # XXX use named args and inner functions to avoid referencing globals
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    20
        # which may cause reloading pb
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    21
        lifetime = timedelta(days=self.repo.config['keep-transaction-lifetime'])
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    22
        def cleanup_old_transactions(repo=self.repo, lifetime=lifetime):
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    23
            mindate = datetime.now() - lifetime
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    24
            session = repo.internal_session()
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    25
            try:
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    26
                session.system_sql(
5101
0d01acee1f0a [undo] fix transactions table name in cleanup operation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4913
diff changeset
    27
                    'DELETE FROM transactions WHERE tx_time < %(time)s',
4913
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    28
                    {'time': mindate})
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    29
                # cleanup deleted entities
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    30
                session.system_sql(
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    31
                    'DELETE FROM deleted_entities WHERE dtime < %(time)s',
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    32
                    {'time': mindate})
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    33
                session.commit()
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    34
            finally:
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    35
                session.close()
083b4d454192 server/web api for accessing to deleted_entites
Katia Saurfelt <katia.saurfelt@logilab.fr>
parents: 2835
diff changeset
    36
        self.repo.looping_task(60*60*24, cleanup_old_transactions, self.repo)